Merge branch '59177-squash-old-migrations' into 'master'harish-and-cindy-ssl-check-rake-taskharish-and-cindy-ldap-sync-rake-tasks

Squash old migrations

Closes #59177

See merge request gitlab-org/gitlab-ce!30226

876 files changed, 1855 insertions, 22421 deletions

diff --git a/.gitlab/ci/rails.gitlab-ci.yml b/.gitlab/ci/rails.gitlab-ci.yml
index 9d24099b85c..f2ada743bf3 100644
--- a/.gitlab/ci/rails.gitlab-ci.yml
+++ b/.gitlab/ci/rails.gitlab-ci.yml
@@ -245,7 +245,7 @@ migration:path-pg:
 .db-rollback: &db-rollback
   extends: .dedicated-no-docs-and-no-qa-pull-cache-job
   script:
-    - bundle exec rake db:migrate VERSION=20170523121229
+    - bundle exec rake db:migrate VERSION=20180101160629
     - bundle exec rake db:migrate SKIP_SCHEMA_VERSION_CHECK=true
   dependencies:
     - setup-test-env
diff --git a/db/migrate/20140313092127_init_schema.rb b/db/migrate/20140313092127_init_schema.rb
deleted file mode 100644
index 4188599b4b4..00000000000
--- a/db/migrate/20140313092127_init_schema.rb
+++ /dev/null
@@ -1,338 +0,0 @@
-class InitSchema < ActiveRecord::Migration[4.2]
-  DOWNTIME = true
-
-  # rubocop:disable Metrics/AbcSize
-  def up
-    create_table "broadcast_messages", force: :cascade do |t|
-      t.text "message", null: false
-      t.datetime "starts_at"
-      t.datetime "ends_at"
-      t.integer "alert_type"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "color"
-      t.string "font"
-    end
-    create_table "deploy_keys_projects", force: :cascade do |t|
-      t.integer "deploy_key_id", null: false
-      t.integer "project_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-    add_index "deploy_keys_projects", ["project_id"], name: "index_deploy_keys_projects_on_project_id", using: :btree
-    create_table "emails", force: :cascade do |t|
-      t.integer "user_id", null: false
-      t.string "email", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-    add_index "emails", ["email"], name: "index_emails_on_email", unique: true, using: :btree
-    add_index "emails", ["user_id"], name: "index_emails_on_user_id", using: :btree
-    create_table "events", force: :cascade do |t|
-      t.string "target_type"
-      t.integer "target_id"
-      t.string "title"
-      t.text "data"
-      t.integer "project_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "action"
-      t.integer "author_id"
-    end
-    add_index "events", ["action"], name: "index_events_on_action", using: :btree
-    add_index "events", ["author_id"], name: "index_events_on_author_id", using: :btree
-    add_index "events", ["created_at"], name: "index_events_on_created_at", using: :btree
-    add_index "events", ["project_id"], name: "index_events_on_project_id", using: :btree
-    add_index "events", ["target_id"], name: "index_events_on_target_id", using: :btree
-    add_index "events", ["target_type"], name: "index_events_on_target_type", using: :btree
-    create_table "forked_project_links", force: :cascade do |t|
-      t.integer "forked_to_project_id", null: false
-      t.integer "forked_from_project_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-    add_index "forked_project_links", ["forked_to_project_id"], name: "index_forked_project_links_on_forked_to_project_id", unique: true, using: :btree
-    create_table "issues", force: :cascade do |t|
-      t.string "title"
-      t.integer "assignee_id"
-      t.integer "author_id"
-      t.integer "project_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "position", default: 0
-      t.string "branch_name"
-      t.text "description"
-      t.integer "milestone_id"
-      t.string "state"
-      t.integer "iid"
-    end
-    add_index "issues", ["assignee_id"], name: "index_issues_on_assignee_id", using: :btree
-    add_index "issues", ["author_id"], name: "index_issues_on_author_id", using: :btree
-    add_index "issues", ["created_at"], name: "index_issues_on_created_at", using: :btree
-    add_index "issues", ["milestone_id"], name: "index_issues_on_milestone_id", using: :btree
-    add_index "issues", ["project_id"], name: "index_issues_on_project_id", using: :btree
-    add_index "issues", ["title"], name: "index_issues_on_title", using: :btree
-    create_table "keys", force: :cascade do |t|
-      t.integer "user_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.text "key"
-      t.string "title"
-      t.string "type"
-      t.string "fingerprint"
-    end
-    add_index "keys", ["user_id"], name: "index_keys_on_user_id", using: :btree
-    create_table "merge_request_diffs", force: :cascade do |t|
-      t.string "state", default: "collected", null: false
-      t.text "st_commits"
-      t.text "st_diffs"
-      t.integer "merge_request_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-    add_index "merge_request_diffs", ["merge_request_id"], name: "index_merge_request_diffs_on_merge_request_id", unique: true, using: :btree
-    create_table "merge_requests", force: :cascade do |t|
-      t.string "target_branch", null: false
-      t.string "source_branch", null: false
-      t.integer "source_project_id", null: false
-      t.integer "author_id"
-      t.integer "assignee_id"
-      t.string "title"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "milestone_id"
-      t.string "state"
-      t.string "merge_status"
-      t.integer "target_project_id", null: false
-      t.integer "iid"
-      t.text "description"
-    end
-    add_index "merge_requests", ["assignee_id"], name: "index_merge_requests_on_assignee_id", using: :btree
-    add_index "merge_requests", ["author_id"], name: "index_merge_requests_on_author_id", using: :btree
-    add_index "merge_requests", ["created_at"], name: "index_merge_requests_on_created_at", using: :btree
-    add_index "merge_requests", ["milestone_id"], name: "index_merge_requests_on_milestone_id", using: :btree
-    add_index "merge_requests", ["source_branch"], name: "index_merge_requests_on_source_branch", using: :btree
-    add_index "merge_requests", ["source_project_id"], name: "index_merge_requests_on_source_project_id", using: :btree
-    add_index "merge_requests", ["target_branch"], name: "index_merge_requests_on_target_branch", using: :btree
-    add_index "merge_requests", ["title"], name: "index_merge_requests_on_title", using: :btree
-    create_table "milestones", force: :cascade do |t|
-      t.string "title", null: false
-      t.integer "project_id", null: false
-      t.text "description"
-      t.date "due_date"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "state"
-      t.integer "iid"
-    end
-    add_index "milestones", ["due_date"], name: "index_milestones_on_due_date", using: :btree
-    add_index "milestones", ["project_id"], name: "index_milestones_on_project_id", using: :btree
-    create_table "namespaces", force: :cascade do |t|
-      t.string "name", null: false
-      t.string "path", null: false
-      t.integer "owner_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "type"
-      t.string "description", default: "", null: false
-      t.string "avatar"
-    end
-    add_index "namespaces", ["name"], name: "index_namespaces_on_name", using: :btree
-    add_index "namespaces", ["owner_id"], name: "index_namespaces_on_owner_id", using: :btree
-    add_index "namespaces", ["path"], name: "index_namespaces_on_path", using: :btree
-    add_index "namespaces", ["type"], name: "index_namespaces_on_type", using: :btree
-    create_table "notes", force: :cascade do |t|
-      t.text "note"
-      t.string "noteable_type"
-      t.integer "author_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "project_id"
-      t.string "attachment"
-      t.string "line_code"
-      t.string "commit_id"
-      t.integer "noteable_id"
-      t.boolean "system", default: false, null: false
-      t.text "st_diff"
-    end
-    add_index "notes", ["author_id"], name: "index_notes_on_author_id", using: :btree
-    add_index "notes", ["commit_id"], name: "index_notes_on_commit_id", using: :btree
-    add_index "notes", ["created_at"], name: "index_notes_on_created_at", using: :btree
-    add_index "notes", %w[noteable_id noteable_type], name: "index_notes_on_noteable_id_and_noteable_type", using: :btree
-    add_index "notes", ["noteable_type"], name: "index_notes_on_noteable_type", using: :btree
-    add_index "notes", %w[project_id noteable_type], name: "index_notes_on_project_id_and_noteable_type", using: :btree
-    add_index "notes", ["project_id"], name: "index_notes_on_project_id", using: :btree
-    create_table "project_group_links", force: :cascade do |t|
-      t.integer "project_id", null: false
-      t.integer "group_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "group_access", default: 30, null: false
-    end
-    create_table "projects", force: :cascade do |t|
-      t.string "name"
-      t.string "path"
-      t.text "description"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "creator_id"
-      t.boolean "issues_enabled", default: true, null: false
-      t.boolean "wall_enabled", default: true, null: false
-      t.boolean "merge_requests_enabled", default: true, null: false
-      t.boolean "wiki_enabled", default: true, null: false
-      t.integer "namespace_id"
-      t.string "issues_tracker", default: "gitlab", null: false
-      t.string "issues_tracker_id"
-      t.boolean "snippets_enabled", default: true, null: false
-      t.datetime "last_activity_at"
-      t.string "import_url"
-      t.integer "visibility_level", default: 0, null: false
-      t.boolean "archived", default: false, null: false
-      t.string "avatar"
-      t.string "import_status"
-    end
-    add_index "projects", ["creator_id"], name: "index_projects_on_creator_id", using: :btree
-    add_index "projects", ["last_activity_at"], name: "index_projects_on_last_activity_at", using: :btree
-    add_index "projects", ["namespace_id"], name: "index_projects_on_namespace_id", using: :btree
-    create_table "protected_branches", force: :cascade do |t|
-      t.integer "project_id", null: false
-      t.string "name", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-    add_index "protected_branches", ["project_id"], name: "index_protected_branches_on_project_id", using: :btree
-    create_table "services", force: :cascade do |t|
-      t.string "type"
-      t.string "title"
-      t.string "token"
-      t.integer "project_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.boolean "active", default: false, null: false
-      t.string "project_url"
-      t.string "subdomain"
-      t.string "room"
-      t.text "recipients"
-      t.string "api_key"
-    end
-    add_index "services", ["project_id"], name: "index_services_on_project_id", using: :btree
-    create_table "snippets", force: :cascade do |t|
-      t.string "title"
-      t.text "content"
-      t.integer "author_id", null: false
-      t.integer "project_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "file_name"
-      t.datetime "expires_at"
-      t.boolean "private", default: true, null: false
-      t.string "type"
-    end
-    add_index "snippets", ["author_id"], name: "index_snippets_on_author_id", using: :btree
-    add_index "snippets", ["created_at"], name: "index_snippets_on_created_at", using: :btree
-    add_index "snippets", ["expires_at"], name: "index_snippets_on_expires_at", using: :btree
-    add_index "snippets", ["project_id"], name: "index_snippets_on_project_id", using: :btree
-    create_table "taggings", force: :cascade do |t|
-      t.integer "tag_id"
-      t.integer "taggable_id"
-      t.string "taggable_type"
-      t.integer "tagger_id"
-      t.string "tagger_type"
-      t.string "context"
-      t.datetime "created_at"
-    end
-    add_index "taggings", ["tag_id"], name: "index_taggings_on_tag_id", using: :btree
-    add_index "taggings", %w[taggable_id taggable_type context], name: "index_taggings_on_taggable_id_and_taggable_type_and_context", using: :btree
-    create_table "tags", force: :cascade do |t|
-      t.string "name"
-    end
-    create_table "users", force: :cascade do |t|
-      t.string "email", default: "", null: false
-      t.string "encrypted_password", default: "", null: false
-      t.string "reset_password_token"
-      t.datetime "reset_password_sent_at"
-      t.datetime "remember_created_at"
-      t.integer "sign_in_count", default: 0
-      t.datetime "current_sign_in_at"
-      t.datetime "last_sign_in_at"
-      t.string "current_sign_in_ip"
-      t.string "last_sign_in_ip"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "name"
-      t.boolean "admin", default: false, null: false
-      t.integer "projects_limit", default: 10
-      t.string "skype", default: "", null: false
-      t.string "linkedin", default: "", null: false
-      t.string "twitter", default: "", null: false
-      t.string "authentication_token"
-      t.integer "theme_id", default: 1, null: false
-      t.string "bio"
-      t.integer "failed_attempts", default: 0
-      t.datetime "locked_at"
-      t.string "extern_uid"
-      t.string "provider"
-      t.string "username"
-      t.boolean "can_create_group", default: true, null: false
-      t.boolean "can_create_team", default: true, null: false
-      t.string "state"
-      t.integer "color_scheme_id", default: 1, null: false
-      t.integer "notification_level", default: 1, null: false
-      t.datetime "password_expires_at"
-      t.integer "created_by_id"
-      t.datetime "last_credential_check_at"
-      t.string "avatar"
-      t.string "confirmation_token"
-      t.datetime "confirmed_at"
-      t.datetime "confirmation_sent_at"
-      t.string "unconfirmed_email"
-      t.boolean "hide_no_ssh_key", default: false
-      t.string "website_url", default: "", null: false
-    end
-    add_index "users", ["admin"], name: "index_users_on_admin", using: :btree
-    add_index "users", ["authentication_token"], name: "index_users_on_authentication_token", unique: true, using: :btree
-    add_index "users", ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true, using: :btree
-    add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
-    add_index "users", %w[extern_uid provider], name: "index_users_on_extern_uid_and_provider", unique: true, using: :btree
-    add_index "users", ["name"], name: "index_users_on_name", using: :btree
-    add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
-    add_index "users", ["username"], name: "index_users_on_username", using: :btree
-    create_table "users_groups", force: :cascade do |t|
-      t.integer "group_access", null: false
-      t.integer "group_id", null: false
-      t.integer "user_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "notification_level", default: 3, null: false
-    end
-    add_index "users_groups", ["user_id"], name: "index_users_groups_on_user_id", using: :btree
-    create_table "users_projects", force: :cascade do |t|
-      t.integer "user_id", null: false
-      t.integer "project_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer "project_access", default: 0, null: false
-      t.integer "notification_level", default: 3, null: false
-    end
-    add_index "users_projects", ["project_access"], name: "index_users_projects_on_project_access", using: :btree
-    add_index "users_projects", ["project_id"], name: "index_users_projects_on_project_id", using: :btree
-    add_index "users_projects", ["user_id"], name: "index_users_projects_on_user_id", using: :btree
-    create_table "web_hooks", force: :cascade do |t|
-      t.string "url"
-      t.integer "project_id"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "type", default: "ProjectHook"
-      t.integer "service_id"
-      t.boolean "push_events", default: true, null: false
-      t.boolean "issues_events", default: false, null: false
-      t.boolean "merge_requests_events", default: false, null: false
-      t.boolean "tag_push_events", default: false
-    end
-    add_index "web_hooks", ["project_id"], name: "index_web_hooks_on_project_id", using: :btree
-  end
-
-  def down
-    raise ActiveRecord::IrreversibleMigration, "The initial migration is not revertable"
-  end
-end
diff --git a/db/migrate/20140407135544_fix_namespaces.rb b/db/migrate/20140407135544_fix_namespaces.rb
deleted file mode 100644
index b16d65c4b51..00000000000
--- a/db/migrate/20140407135544_fix_namespaces.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class FixNamespaces < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    namespaces = exec_query('SELECT id, path FROM namespaces WHERE name <> path and type is null')
-
-    namespaces.each do |row|
-      id = row['id']
-      path = row['path']
-      exec_query("UPDATE namespaces SET name = '#{path}' WHERE id = #{id}")
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20140414131055_change_state_to_allow_empty_merge_request_diffs.rb b/db/migrate/20140414131055_change_state_to_allow_empty_merge_request_diffs.rb
deleted file mode 100644
index 1f9ae3f0080..00000000000
--- a/db/migrate/20140414131055_change_state_to_allow_empty_merge_request_diffs.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class ChangeStateToAllowEmptyMergeRequestDiffs < ActiveRecord::Migration[4.2]
-  def up
-    change_column :merge_request_diffs, :state, :string, null: true,
-                  default: nil
-  end
-
-  def down
-    change_column :merge_request_diffs, :state, :string, null: false,
-                  default: 'collected'
-  end
-end
diff --git a/db/migrate/20140415124820_limits_to_mysql.rb b/db/migrate/20140415124820_limits_to_mysql.rb
deleted file mode 100644
index 3f6e62617c5..00000000000
--- a/db/migrate/20140415124820_limits_to_mysql.rb
+++ /dev/null
@@ -1 +0,0 @@
-require_relative 'limits_to_mysql'
diff --git a/db/migrate/20140416074002_add_index_on_iid.rb b/db/migrate/20140416074002_add_index_on_iid.rb
deleted file mode 100644
index c7f707ca123..00000000000
--- a/db/migrate/20140416074002_add_index_on_iid.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# rubocop:disable all
-class AddIndexOnIid < ActiveRecord::Migration[4.2]
-  def change
-    RemoveDuplicateIid.clean(Issue)
-    RemoveDuplicateIid.clean(MergeRequest, 'target_project_id')
-    RemoveDuplicateIid.clean(Milestone)
-
-    add_index :issues, [:project_id, :iid], unique: true
-    add_index :merge_requests, [:target_project_id, :iid], unique: true
-    add_index :milestones, [:project_id, :iid], unique: true
-  end
-end
-
-class RemoveDuplicateIid
-  def self.clean(klass, project_field = 'project_id')
-    duplicates = klass.find_by_sql("SELECT iid, #{project_field} FROM #{klass.table_name} GROUP BY #{project_field}, iid HAVING COUNT(*) > 1")
-
-    duplicates.each do |duplicate|
-      project_id = duplicate.send(project_field)
-      iid = duplicate.iid
-      items = klass.of_projects(project_id).where(iid: iid)
-
-      if items.size > 1
-        puts "Remove #{klass.name} duplicates for iid: #{iid} and project_id: #{project_id}"
-        items.shift
-        items.each do |item|
-          item.destroy
-          puts '.'
-        end
-      end
-    end
-  end
-end
diff --git a/db/migrate/20140416185734_index_on_current_sign_in_at.rb b/db/migrate/20140416185734_index_on_current_sign_in_at.rb
deleted file mode 100644
index 7dabcb937b3..00000000000
--- a/db/migrate/20140416185734_index_on_current_sign_in_at.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class IndexOnCurrentSignInAt < ActiveRecord::Migration[4.2]
-  def change
-    add_index :users, :current_sign_in_at
-  end
-end
diff --git a/db/migrate/20140428105831_add_notes_index_updated_at.rb b/db/migrate/20140428105831_add_notes_index_updated_at.rb
deleted file mode 100644
index 25bdf477e24..00000000000
--- a/db/migrate/20140428105831_add_notes_index_updated_at.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddNotesIndexUpdatedAt < ActiveRecord::Migration[4.2]
-  def change
-    add_index :notes, :updated_at
-  end
-end
diff --git a/db/migrate/20140502115131_add_repo_size_to_db.rb b/db/migrate/20140502115131_add_repo_size_to_db.rb
deleted file mode 100644
index 4cb7a01bbf2..00000000000
--- a/db/migrate/20140502115131_add_repo_size_to_db.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddRepoSizeToDb < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :repository_size, :float, default: 0
-  end
-end
diff --git a/db/migrate/20140502125220_migrate_repo_size.rb b/db/migrate/20140502125220_migrate_repo_size.rb
deleted file mode 100644
index bff1f01c654..00000000000
--- a/db/migrate/20140502125220_migrate_repo_size.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# rubocop:disable all
-class MigrateRepoSize < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    project_data = execute('SELECT projects.id, namespaces.path AS namespace_path, projects.path AS project_path FROM projects LEFT JOIN namespaces ON projects.namespace_id = namespaces.id')
-
-    project_data.each do |project|
-      id = project['id']
-      namespace_path = project['namespace_path'] || ''
-      path = File.join(namespace_path, project['project_path'] + '.git')
-
-      begin
-        repo = Gitlab::Git::Repository.new('default', path, '', '')
-        if repo.empty?
-          print '-'
-        else
-          size = repo.size
-          print '.'
-          execute("UPDATE projects SET repository_size = #{size} WHERE id = #{id}")
-        end
-      rescue => e
-        puts "\nFailed to update project #{id}: #{e}"
-      end
-    end
-    puts "\nDone"
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20140611135229_add_position_to_merge_request.rb b/db/migrate/20140611135229_add_position_to_merge_request.rb
deleted file mode 100644
index 6ec644eecce..00000000000
--- a/db/migrate/20140611135229_add_position_to_merge_request.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddPositionToMergeRequest < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_requests, :position, :integer, default: 0
-  end
-end
diff --git a/db/migrate/20140625115202_create_users_star_projects.rb b/db/migrate/20140625115202_create_users_star_projects.rb
deleted file mode 100644
index 2237927fc78..00000000000
--- a/db/migrate/20140625115202_create_users_star_projects.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable all
-class CreateUsersStarProjects < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :users_star_projects do |t|
-      t.integer :project_id, null: false
-      t.integer :user_id, null: false
-      t.timestamps null: true
-    end
-    add_index :users_star_projects, :user_id
-    add_index :users_star_projects, :project_id
-    add_index :users_star_projects, [:user_id, :project_id], unique: true
-
-    add_column :projects, :star_count, :integer, default: 0, null: false
-    add_index :projects, :star_count, using: :btree
-  end
-end
diff --git a/db/migrate/20140729134820_create_labels.rb b/db/migrate/20140729134820_create_labels.rb
deleted file mode 100644
index 1060610b660..00000000000
--- a/db/migrate/20140729134820_create_labels.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable all
-class CreateLabels < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :labels do |t|
-      t.string :title
-      t.string :color
-      t.integer :project_id
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20140729140420_create_label_links.rb b/db/migrate/20140729140420_create_label_links.rb
deleted file mode 100644
index b8596a44a21..00000000000
--- a/db/migrate/20140729140420_create_label_links.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable all
-class CreateLabelLinks < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :label_links do |t|
-      t.integer :label_id
-      t.integer :target_id
-      t.string :target_type
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20140729145339_migrate_project_tags.rb b/db/migrate/20140729145339_migrate_project_tags.rb
deleted file mode 100644
index 711a2d262aa..00000000000
--- a/db/migrate/20140729145339_migrate_project_tags.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class MigrateProjectTags < ActiveRecord::Migration[4.2]
-  def up
-    ActsAsTaggableOn::Tagging.where(taggable_type: 'Project', context: 'labels').update_all(context: 'tags')
-  end
-
-  def down
-    ActsAsTaggableOn::Tagging.where(taggable_type: 'Project', context: 'tags').update_all(context: 'labels')
-  end
-end
diff --git a/db/migrate/20140729152420_migrate_taggable_labels.rb b/db/migrate/20140729152420_migrate_taggable_labels.rb
deleted file mode 100644
index a8bf8022dfc..00000000000
--- a/db/migrate/20140729152420_migrate_taggable_labels.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-# rubocop:disable all
-class MigrateTaggableLabels < ActiveRecord::Migration[4.2]
-  def up
-    taggings = ActsAsTaggableOn::Tagging.where(taggable_type: ['Issue', 'MergeRequest'], context: 'labels')
-    taggings.find_each(batch_size: 500) do |tagging|
-      # Clean up orphaned taggings while we are here
-      if tagging.taggable.blank? || tagging.tag.nil?
-        tagging.destroy
-        print 'D'
-        next
-      end
-      create_label_from_tagging(tagging)
-    end
-  end
-
-  def down
-    Label.destroy_all
-    LabelLink.destroy_all
-  end
-
-  private
-
-  def create_label_from_tagging(tagging)
-    target = tagging.taggable
-    label_name = tagging.tag.name
-    # '?', '&' and ',' are no longer allowed in label names so we remove them
-    label_name.tr!('?&,', '')
-    label = target.project.labels.find_or_create_by(title: label_name, color: Label::DEFAULT_COLOR)
-
-    if label.valid? && LabelLink.create(label: label, target: target)
-      print '.'
-    else
-      print 'F'
-    end
-  end
-end
diff --git a/db/migrate/20140730111702_add_index_to_labels.rb b/db/migrate/20140730111702_add_index_to_labels.rb
deleted file mode 100644
index 21f9dfd5d47..00000000000
--- a/db/migrate/20140730111702_add_index_to_labels.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable all
-class AddIndexToLabels < ActiveRecord::Migration[4.2]
-  def change
-    add_index "labels", :project_id
-    add_index "label_links", :label_id
-    add_index "label_links", [:target_id, :target_type]
-  end
-end
diff --git a/db/migrate/20140903115954_migrate_to_new_shell.rb b/db/migrate/20140903115954_migrate_to_new_shell.rb
deleted file mode 100644
index cc0cce483b1..00000000000
--- a/db/migrate/20140903115954_migrate_to_new_shell.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable all
-class MigrateToNewShell < ActiveRecord::Migration[4.2]
-  def change
-    return if Rails.env.test?
-
-    gitlab_shell_path = Gitlab.config.gitlab_shell.path
-    if system("#{gitlab_shell_path}/bin/create-hooks")
-      puts 'Repositories updated with new hooks'
-    else
-      raise 'Failed to rewrite gitlab-shell hooks in repositories'
-    end
-  end
-end
diff --git a/db/migrate/20140907220153_serialize_service_properties.rb b/db/migrate/20140907220153_serialize_service_properties.rb
deleted file mode 100644
index bf94c64654b..00000000000
--- a/db/migrate/20140907220153_serialize_service_properties.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-# rubocop:disable all
-class SerializeServiceProperties < ActiveRecord::Migration[4.2]
-  def change
-    unless column_exists?(:services, :properties)
-      add_column :services, :properties, :text
-    end
-
-    Service.reset_column_information
-
-    associations =
-    {
-      AssemblaService:        [:token, :subdomain],
-      CampfireService:        [:token, :subdomain, :room],
-      EmailsOnPushService:    [:recipients],
-      FlowdockService:        [:token],
-      GemnasiumService:       [:api_key, :token],
-      GitlabCiService:        [:token, :project_url],
-      HipchatService:         [:token, :room],
-      PivotaltrackerService:  [:token],
-      SlackService:           [:subdomain, :token, :room],
-      JenkinsService:         [:project_url],
-      JiraService:            [:project_url, :username, :password,
-                               :api_version, :jira_issue_transition_id],
-    }
-
-    Service.find_each(batch_size: 500).each do |service|
-      associations[service.type.to_sym].each do |attribute|
-        service.send("#{attribute}=", service.attributes[attribute.to_s])
-      end
-
-      service.save(validate: false)
-    end
-
-    if column_exists?(:services, :project_url)
-      remove_column :services, :project_url, :string
-      remove_column :services, :subdomain, :string
-      remove_column :services, :room, :string
-      remove_column :services, :recipients, :text
-      remove_column :services, :api_key, :string
-      remove_column :services, :token, :string
-    end
-  end
-end
diff --git a/db/migrate/20140914113604_add_members_table.rb b/db/migrate/20140914113604_add_members_table.rb
deleted file mode 100644
index 312ea1b94df..00000000000
--- a/db/migrate/20140914113604_add_members_table.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable all
-class AddMembersTable < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :members do |t|
-      t.integer :access_level, null: false
-      t.integer :source_id,    null: false
-      t.string  :source_type,  null: false
-      t.integer :user_id,      null: false
-      t.integer :notification_level, null: false
-      t.string  :type
-
-      t.timestamps null: true
-    end
-
-    add_index :members, :type
-    add_index :members, :user_id
-    add_index :members, :access_level
-    add_index :members, [:source_id, :source_type]
-  end
-end
diff --git a/db/migrate/20140914145549_migrate_to_new_members_model.rb b/db/migrate/20140914145549_migrate_to_new_members_model.rb
deleted file mode 100644
index 22d8b3d651b..00000000000
--- a/db/migrate/20140914145549_migrate_to_new_members_model.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# rubocop:disable all
-class MigrateToNewMembersModel < ActiveRecord::Migration[4.2]
-  def up
-    execute "INSERT INTO members ( user_id, source_id, source_type, access_level, notification_level, type ) SELECT user_id, group_id, 'Namespace', group_access, notification_level, 'GroupMember' FROM users_groups"
-    execute "INSERT INTO members ( user_id, source_id, source_type, access_level, notification_level, type ) SELECT user_id, project_id, 'Project', project_access, notification_level, 'ProjectMember' FROM users_projects"
-  end
-
-  def down
-    Member.delete_all
-  end
-end
-
diff --git a/db/migrate/20140914173417_remove_old_member_tables.rb b/db/migrate/20140914173417_remove_old_member_tables.rb
deleted file mode 100644
index edd69caa470..00000000000
--- a/db/migrate/20140914173417_remove_old_member_tables.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# rubocop:disable all
-class RemoveOldMemberTables < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    drop_table :users_groups
-    drop_table :users_projects
-  end
-
-  def down
-    create_table :users_groups do |t|
-      t.integer :group_access, null: false
-      t.integer :group_id, null: false
-      t.integer :user_id, null: false
-      t.integer :notification_level, null: false, default: 3
-
-      t.timestamps null: true
-    end
-
-    create_table :users_projects do |t|
-      t.integer :project_access, null: false
-      t.integer :project_id, null: false
-      t.integer :user_id, null: false
-      t.integer :notification_level, null: false, default: 3
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20141006143943_move_slack_service_to_webhook.rb b/db/migrate/20141006143943_move_slack_service_to_webhook.rb
deleted file mode 100644
index 1c9a1a74a4e..00000000000
--- a/db/migrate/20141006143943_move_slack_service_to_webhook.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable all
-class MoveSlackServiceToWebhook < ActiveRecord::Migration[4.2]
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Move old fields "token" and "subdomain" to one single field "webhook"'
-
-  def change
-    SlackService.all.each do |slack_service|
-      if ["token", "subdomain"].all? { |property| slack_service.properties.key? property }
-        token = slack_service.properties['token']
-        subdomain = slack_service.properties['subdomain']
-        webhook = "https://#{subdomain}.slack.com/services/hooks/incoming-webhook?token=#{token}"
-        slack_service.properties['webhook'] = webhook
-        slack_service.properties.delete('token')
-        slack_service.properties.delete('subdomain')
-        # Room is configured on the Slack side
-        slack_service.properties.delete('room')
-        slack_service.save(validate: false)
-      end
-    end
-  end
-end
diff --git a/db/migrate/20141007100818_add_visibility_level_to_snippet.rb b/db/migrate/20141007100818_add_visibility_level_to_snippet.rb
deleted file mode 100644
index 9501aed8931..00000000000
--- a/db/migrate/20141007100818_add_visibility_level_to_snippet.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# rubocop:disable all
-class AddVisibilityLevelToSnippet < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def up
-    add_column :snippets, :visibility_level, :integer, :default => 0, :null => false
-
-    execute("UPDATE snippets SET visibility_level = #{Gitlab::VisibilityLevel::PRIVATE} WHERE private = #{true_value}")
-    execute("UPDATE snippets SET visibility_level = #{Gitlab::VisibilityLevel::INTERNAL} WHERE private = #{false_value}")
-
-    add_index :snippets, :visibility_level
-
-    remove_column :snippets, :private
-  end
-
-  def down
-    add_column :snippets, :private, :boolean, :default => false, :null => false
-
-    execute("UPDATE snippets SET private = #{false_value} WHERE visibility_level = #{Gitlab::VisibilityLevel::INTERNAL}")
-    execute("UPDATE snippets SET private = #{true_value} WHERE visibility_level = #{Gitlab::VisibilityLevel::PRIVATE}")
-
-    remove_column :snippets, :visibility_level
-  end
-end
diff --git a/db/migrate/20141118150935_add_audit_event.rb b/db/migrate/20141118150935_add_audit_event.rb
deleted file mode 100644
index 1e7dba568c9..00000000000
--- a/db/migrate/20141118150935_add_audit_event.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-# rubocop:disable all
-class AddAuditEvent < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :audit_events do |t|
-      t.integer :author_id, null: false
-      t.string  :type, null: false
-
-      # "Namespace" where the change occurs
-      # eg. On a project, group or user
-      t.integer :entity_id, null: false
-      t.string  :entity_type, null: false
-
-      # Details for the event
-      t.text  :details
-
-      t.timestamps null: true
-    end
-
-    add_index :audit_events, :author_id
-    add_index :audit_events, :type
-    add_index :audit_events, [:entity_id, :entity_type]
-  end
-end
diff --git a/db/migrate/20141121133009_add_timestamps_to_members.rb b/db/migrate/20141121133009_add_timestamps_to_members.rb
deleted file mode 100644
index cb575fc9ed7..00000000000
--- a/db/migrate/20141121133009_add_timestamps_to_members.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# In 20140914145549_migrate_to_new_members_model.rb we forgot to set the
-# created_at and updated_at times for new records in the 'members' table. This
-# became a problem after commit c8e78d972a5a628870eefca0f2ccea0199c55bda which
-# was added in GitLab 7.5. With this migration we ensure that all rows in
-# 'members' have at least some created_at and updated_at timestamp.
-class AddTimestampsToMembers < ActiveRecord::Migration[4.2]
-  def up
-    execute "UPDATE members SET created_at = NOW() WHERE created_at is NULL"
-    execute "UPDATE members SET updated_at = NOW() WHERE updated_at is NULL"
-  end
-
-  def down
-    # no change
-  end
-end
diff --git a/db/migrate/20141121161704_add_identity_table.rb b/db/migrate/20141121161704_add_identity_table.rb
deleted file mode 100644
index 92f7a568077..00000000000
--- a/db/migrate/20141121161704_add_identity_table.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-# rubocop:disable all
-class AddIdentityTable < ActiveRecord::Migration[4.2]
-  def up
-    create_table :identities do |t|
-      t.string :extern_uid
-      t.string :provider
-      t.references :user
-    end
-
-    add_index :identities, :user_id
-
-    execute <<eos
-INSERT INTO identities (provider, extern_uid, user_id)
-SELECT provider, extern_uid, id FROM users
-WHERE provider IS NOT NULL
-eos
-
-    if index_exists?(:users, ["extern_uid", "provider"])
-      remove_index :users, ["extern_uid", "provider"]
-    end
-
-    remove_column :users, :extern_uid
-    remove_column :users, :provider
-  end
-
-  def down
-    add_column :users, :extern_uid, :string
-    add_column :users, :provider, :string
-
-    if ActiveRecord::Base.connection.adapter_name == 'PostgreSQL'
-      execute <<eos
-UPDATE users u
-SET provider = i.provider, extern_uid = i.extern_uid
-FROM identities i
-WHERE i.user_id = u.id
-eos
-      else
-        execute "UPDATE users u, identities i SET u.provider = i.provider, u.extern_uid = i.extern_uid WHERE u.id = i.user_id"
-      end
-
-    drop_table :identities
-
-    unless index_exists?(:users, ["extern_uid", "provider"])
-      add_index "users", ["extern_uid", "provider"], name: "index_users_on_extern_uid_and_provider", unique: true, using: :btree
-    end
-  end
-end
diff --git a/db/migrate/20141126120926_add_merge_request_rebase_enabled_to_projects.rb b/db/migrate/20141126120926_add_merge_request_rebase_enabled_to_projects.rb
deleted file mode 100644
index b9d8a5cb435..00000000000
--- a/db/migrate/20141126120926_add_merge_request_rebase_enabled_to_projects.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class AddMergeRequestRebaseEnabledToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:projects, :merge_requests_rebase_enabled, :boolean, default: false)
-  end
-
-  def down
-    remove_column(:projects, :merge_requests_rebase_enabled)
-  end
-end
diff --git a/db/migrate/20141205134006_add_locked_at_to_merge_request.rb b/db/migrate/20141205134006_add_locked_at_to_merge_request.rb
deleted file mode 100644
index 6fdfb3eb974..00000000000
--- a/db/migrate/20141205134006_add_locked_at_to_merge_request.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddLockedAtToMergeRequest < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_requests, :locked_at, :datetime
-  end
-end
diff --git a/db/migrate/20141216155758_create_doorkeeper_tables.rb b/db/migrate/20141216155758_create_doorkeeper_tables.rb
deleted file mode 100644
index 7bd0a15e7f5..00000000000
--- a/db/migrate/20141216155758_create_doorkeeper_tables.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# rubocop:disable all
-class CreateDoorkeeperTables < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :oauth_applications do |t|
-      t.string  :name,         null: false
-      t.string  :uid,          null: false
-      t.string  :secret,       null: false
-      t.text    :redirect_uri, null: false
-      t.string  :scopes,       null: false, default: ''
-      t.timestamps null: true
-    end
-
-    add_index :oauth_applications, :uid, unique: true
-
-    create_table :oauth_access_grants do |t|
-      t.integer  :resource_owner_id, null: false
-      t.integer  :application_id,    null: false
-      t.string   :token,             null: false
-      t.integer  :expires_in,        null: false
-      t.text     :redirect_uri,      null: false
-      t.datetime :created_at,        null: false
-      t.datetime :revoked_at
-      t.string   :scopes
-    end
-
-    add_index :oauth_access_grants, :token, unique: true
-
-    create_table :oauth_access_tokens do |t|
-      t.integer  :resource_owner_id
-      t.integer  :application_id
-      t.string   :token,             null: false
-      t.string   :refresh_token
-      t.integer  :expires_in
-      t.datetime :revoked_at
-      t.datetime :created_at,        null: false
-      t.string   :scopes
-    end
-
-    add_index :oauth_access_tokens, :token, unique: true
-    add_index :oauth_access_tokens, :resource_owner_id
-    add_index :oauth_access_tokens, :refresh_token, unique: true
-  end
-end
diff --git a/db/migrate/20141217125223_add_owner_to_application.rb b/db/migrate/20141217125223_add_owner_to_application.rb
deleted file mode 100644
index 482a53f3ad5..00000000000
--- a/db/migrate/20141217125223_add_owner_to_application.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable all
-class AddOwnerToApplication < ActiveRecord::Migration[4.2]
-  def change
-    add_column :oauth_applications, :owner_id, :integer, null: true
-    add_column :oauth_applications, :owner_type, :string, null: true
-    add_index :oauth_applications, [:owner_id, :owner_type]
-  end
-end
\ No newline at end of file
diff --git a/db/migrate/20141223135007_add_import_data_to_project_table.rb b/db/migrate/20141223135007_add_import_data_to_project_table.rb
deleted file mode 100644
index 516f58d645e..00000000000
--- a/db/migrate/20141223135007_add_import_data_to_project_table.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddImportDataToProjectTable < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :import_type, :string
-    add_column :projects, :import_source, :string
-
-    add_column :users, :github_access_token, :string
-  end
-end
diff --git a/db/migrate/20141226080412_add_developers_can_push_to_protected_branches.rb b/db/migrate/20141226080412_add_developers_can_push_to_protected_branches.rb
deleted file mode 100644
index 43b7de85228..00000000000
--- a/db/migrate/20141226080412_add_developers_can_push_to_protected_branches.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddDevelopersCanPushToProtectedBranches < ActiveRecord::Migration[4.2]
-  def change
-    add_column :protected_branches, :developers_can_push, :boolean, default: false, null: false
-  end
-end
diff --git a/db/migrate/20150108073740_create_application_settings.rb b/db/migrate/20150108073740_create_application_settings.rb
deleted file mode 100644
index be139fee63a..00000000000
--- a/db/migrate/20150108073740_create_application_settings.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable all
-class CreateApplicationSettings < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :application_settings do |t|
-      t.integer :default_projects_limit
-      t.boolean :signup_enabled
-      t.boolean :signin_enabled
-      t.boolean :gravatar_enabled
-      t.text :sign_in_text
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20150116234544_add_home_page_url_for_application_settings.rb b/db/migrate/20150116234544_add_home_page_url_for_application_settings.rb
deleted file mode 100644
index e630e2cc878..00000000000
--- a/db/migrate/20150116234544_add_home_page_url_for_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddHomePageUrlForApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :home_page_url, :string
-  end
-end
diff --git a/db/migrate/20150116234545_add_gitlab_access_token_to_user.rb b/db/migrate/20150116234545_add_gitlab_access_token_to_user.rb
deleted file mode 100644
index 673628e106b..00000000000
--- a/db/migrate/20150116234545_add_gitlab_access_token_to_user.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddGitlabAccessTokenToUser < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :gitlab_access_token, :string
-  end
-end
diff --git a/db/migrate/20150125163100_add_default_branch_protection_setting.rb b/db/migrate/20150125163100_add_default_branch_protection_setting.rb
deleted file mode 100644
index f6bfa422124..00000000000
--- a/db/migrate/20150125163100_add_default_branch_protection_setting.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddDefaultBranchProtectionSetting < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :default_branch_protection, :integer, :default => 2
-  end
-end
diff --git a/db/migrate/20150205211843_add_timestamps_to_identities.rb b/db/migrate/20150205211843_add_timestamps_to_identities.rb
deleted file mode 100644
index c535a7ec781..00000000000
--- a/db/migrate/20150205211843_add_timestamps_to_identities.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddTimestampsToIdentities < ActiveRecord::Migration[4.2]
-  def change
-    add_timestamps(:identities)
-  end
-end
diff --git a/db/migrate/20150206181414_add_index_to_created_at.rb b/db/migrate/20150206181414_add_index_to_created_at.rb
deleted file mode 100644
index 501acd6a720..00000000000
--- a/db/migrate/20150206181414_add_index_to_created_at.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class AddIndexToCreatedAt < ActiveRecord::Migration[4.2]
-  def change
-    add_index "users", [:created_at, :id]
-    add_index "members", [:created_at, :id]
-    add_index "projects", [:created_at, :id]
-    add_index "issues", [:created_at, :id]
-    add_index "merge_requests", [:created_at, :id]
-    add_index "milestones", [:created_at, :id]
-    add_index "namespaces", [:created_at, :id]
-    add_index "notes", [:created_at, :id]
-    add_index "identities", [:created_at, :id]
-    add_index "keys", [:created_at, :id]
-    add_index "web_hooks", [:created_at, :id]
-    add_index "snippets", [:created_at, :id]
-  end
-end
diff --git a/db/migrate/20150206222854_add_notification_email_to_user.rb b/db/migrate/20150206222854_add_notification_email_to_user.rb
deleted file mode 100644
index 7b0c251db4f..00000000000
--- a/db/migrate/20150206222854_add_notification_email_to_user.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddNotificationEmailToUser < ActiveRecord::Migration[4.2]
-  def up
-    add_column :users, :notification_email, :string
-
-    execute "UPDATE users SET notification_email = email"
-  end
-
-  def down
-    remove_column :users, :notification_email
-  end
-end
diff --git a/db/migrate/20150209222013_add_missing_index.rb b/db/migrate/20150209222013_add_missing_index.rb
deleted file mode 100644
index 99544ab3928..00000000000
--- a/db/migrate/20150209222013_add_missing_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddMissingIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index "services", [:created_at, :id]
-  end
-end
diff --git a/db/migrate/20150211172122_add_template_to_service.rb b/db/migrate/20150211172122_add_template_to_service.rb
deleted file mode 100644
index dd192a0fe76..00000000000
--- a/db/migrate/20150211172122_add_template_to_service.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddTemplateToService < ActiveRecord::Migration[4.2]
-  def change
-    add_column :services, :template, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20150211174341_allow_null_in_services_project_id.rb b/db/migrate/20150211174341_allow_null_in_services_project_id.rb
deleted file mode 100644
index 4c90bf9c419..00000000000
--- a/db/migrate/20150211174341_allow_null_in_services_project_id.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AllowNullInServicesProjectId < ActiveRecord::Migration[4.2]
-  def change
-    change_column :services, :project_id, :integer, null: true
-  end
-end
diff --git a/db/migrate/20150213104043_add_twitter_sharing_enabled_to_application_settings.rb b/db/migrate/20150213104043_add_twitter_sharing_enabled_to_application_settings.rb
deleted file mode 100644
index 7d7b9242cd6..00000000000
--- a/db/migrate/20150213104043_add_twitter_sharing_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddTwitterSharingEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :twitter_sharing_enabled, :boolean, default: true
-  end
-end
diff --git a/db/migrate/20150213114800_add_hide_no_password_to_user.rb b/db/migrate/20150213114800_add_hide_no_password_to_user.rb
deleted file mode 100644
index 348c0d22aba..00000000000
--- a/db/migrate/20150213114800_add_hide_no_password_to_user.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddHideNoPasswordToUser < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :hide_no_password, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20150213121042_add_password_automatically_set_to_user.rb b/db/migrate/20150213121042_add_password_automatically_set_to_user.rb
deleted file mode 100644
index d0eb753b887..00000000000
--- a/db/migrate/20150213121042_add_password_automatically_set_to_user.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddPasswordAutomaticallySetToUser < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :password_automatically_set, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20150217123345_add_bitbucket_access_token_and_secret_to_user.rb b/db/migrate/20150217123345_add_bitbucket_access_token_and_secret_to_user.rb
deleted file mode 100644
index 639644174ca..00000000000
--- a/db/migrate/20150217123345_add_bitbucket_access_token_and_secret_to_user.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class AddBitbucketAccessTokenAndSecretToUser < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :bitbucket_access_token, :string
-    add_column :users, :bitbucket_access_token_secret, :string
-  end
-end
diff --git a/db/migrate/20150219004514_add_events_to_services.rb b/db/migrate/20150219004514_add_events_to_services.rb
deleted file mode 100644
index 7072056adcb..00000000000
--- a/db/migrate/20150219004514_add_events_to_services.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# rubocop:disable all
-class AddEventsToServices < ActiveRecord::Migration[4.2]
-  def change
-    add_column :services, :push_events, :boolean, :default => true
-    add_column :services, :issues_events, :boolean, :default => true
-    add_column :services, :merge_requests_events, :boolean, :default => true
-    add_column :services, :tag_push_events, :boolean, :default => true
-  end
-end
diff --git a/db/migrate/20150223022001_set_missing_last_activity_at.rb b/db/migrate/20150223022001_set_missing_last_activity_at.rb
deleted file mode 100644
index c77ffbd4ebd..00000000000
--- a/db/migrate/20150223022001_set_missing_last_activity_at.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class SetMissingLastActivityAt < ActiveRecord::Migration[4.2]
-  def up
-    execute "UPDATE projects SET last_activity_at = updated_at WHERE last_activity_at IS NULL"
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20150225065047_add_note_events_to_services.rb b/db/migrate/20150225065047_add_note_events_to_services.rb
deleted file mode 100644
index 32c538e8681..00000000000
--- a/db/migrate/20150225065047_add_note_events_to_services.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddNoteEventsToServices < ActiveRecord::Migration[4.2]
-  def change
-    add_column :services, :note_events, :boolean, default: true, null: false
-  end
-end
diff --git a/db/migrate/20150301014758_add_restricted_visibility_levels_to_application_settings.rb b/db/migrate/20150301014758_add_restricted_visibility_levels_to_application_settings.rb
deleted file mode 100644
index 3091790f199..00000000000
--- a/db/migrate/20150301014758_add_restricted_visibility_levels_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddRestrictedVisibilityLevelsToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :restricted_visibility_levels, :text
-  end
-end
diff --git a/db/migrate/20150306023106_fix_namespace_duplication.rb b/db/migrate/20150306023106_fix_namespace_duplication.rb
deleted file mode 100644
index 49be152a75c..00000000000
--- a/db/migrate/20150306023106_fix_namespace_duplication.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable all
-class FixNamespaceDuplication < ActiveRecord::Migration[4.2]
-  def up
-    #fixes path duplication
-    select_all('SELECT MAX(id) max, COUNT(id) cnt, path FROM namespaces GROUP BY path HAVING COUNT(id) > 1').each do |nms|
-      bad_nms_ids = select_all("SELECT id FROM namespaces WHERE path = '#{nms['path']}' AND id <> #{nms['max']}").map{|x| x["id"]}
-      execute("UPDATE projects SET namespace_id = #{nms["max"]} WHERE namespace_id IN(#{bad_nms_ids.join(', ')})")
-      execute("DELETE FROM namespaces WHERE id IN(#{bad_nms_ids.join(', ')})")
-    end
-
-    #fixes name duplication
-    select_all('SELECT MAX(id) max, COUNT(id) cnt, name FROM namespaces GROUP BY name HAVING COUNT(id) > 1').each do |nms|
-      bad_nms_ids = select_all("SELECT id FROM namespaces WHERE name = '#{nms['name']}' AND id <> #{nms['max']}").map{|x| x["id"]}
-      execute("UPDATE projects SET namespace_id = #{nms["max"]} WHERE namespace_id IN(#{bad_nms_ids.join(', ')})")
-      execute("DELETE FROM namespaces WHERE id IN(#{bad_nms_ids.join(', ')})")
-    end
-  end
-
-  def down
-    # not implemented
-  end
-end
diff --git a/db/migrate/20150306023112_add_unique_index_to_namespace.rb b/db/migrate/20150306023112_add_unique_index_to_namespace.rb
deleted file mode 100644
index 11472324cbf..00000000000
--- a/db/migrate/20150306023112_add_unique_index_to_namespace.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddUniqueIndexToNamespace < ActiveRecord::Migration[4.2]
-  def change
-    remove_index :namespaces, column: :name if index_exists?(:namespaces, :name)
-    remove_index :namespaces, column: :path if index_exists?(:namespaces, :path)
-
-    add_index :namespaces, :name, unique: true
-    add_index :namespaces, :path, unique: true
-  end
-end
diff --git a/db/migrate/20150310194358_add_version_check_to_application_settings.rb b/db/migrate/20150310194358_add_version_check_to_application_settings.rb
deleted file mode 100644
index cc1b19f302e..00000000000
--- a/db/migrate/20150310194358_add_version_check_to_application_settings.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddVersionCheckToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :version_check_enabled, :boolean, default: true
-  end
-end
diff --git a/db/migrate/20150313012111_create_subscriptions_table.rb b/db/migrate/20150313012111_create_subscriptions_table.rb
deleted file mode 100644
index 37011504b49..00000000000
--- a/db/migrate/20150313012111_create_subscriptions_table.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable all
-class CreateSubscriptionsTable < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :subscriptions do |t|
-      t.integer :user_id
-      t.references :subscribable, polymorphic: true
-      t.boolean :subscribed
-
-      t.timestamps null: true
-    end
-
-    add_index :subscriptions,
-              [:subscribable_id, :subscribable_type, :user_id],
-              unique: true,
-              name: 'subscriptions_user_id_and_ref_fields'
-  end
-end
diff --git a/db/migrate/20150320234437_add_location_to_user.rb b/db/migrate/20150320234437_add_location_to_user.rb
deleted file mode 100644
index cf273ff916e..00000000000
--- a/db/migrate/20150320234437_add_location_to_user.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddLocationToUser < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :location, :string
-  end
-end
diff --git a/db/migrate/20150324155957_set_incorrect_assignee_id_to_null.rb b/db/migrate/20150324155957_set_incorrect_assignee_id_to_null.rb
deleted file mode 100644
index a895d5f24f5..00000000000
--- a/db/migrate/20150324155957_set_incorrect_assignee_id_to_null.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class SetIncorrectAssigneeIdToNull < ActiveRecord::Migration[4.2]
-  def up
-    execute "UPDATE issues SET assignee_id = NULL WHERE assignee_id = -1"
-    execute "UPDATE merge_requests SET assignee_id = NULL WHERE assignee_id = -1"
-  end
-end
diff --git a/db/migrate/20150327122227_add_public_to_key.rb b/db/migrate/20150327122227_add_public_to_key.rb
deleted file mode 100644
index 58d8c16476f..00000000000
--- a/db/migrate/20150327122227_add_public_to_key.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddPublicToKey < ActiveRecord::Migration[4.2]
-  def change
-    add_column :keys, :public, :boolean, default: false, null: false
-  end
-end
diff --git a/db/migrate/20150327150017_add_import_data_to_project.rb b/db/migrate/20150327150017_add_import_data_to_project.rb
deleted file mode 100644
index 5d393364ee6..00000000000
--- a/db/migrate/20150327150017_add_import_data_to_project.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddImportDataToProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :import_data, :text
-  end
-end
diff --git a/db/migrate/20150327223628_add_devise_two_factor_to_users.rb b/db/migrate/20150327223628_add_devise_two_factor_to_users.rb
deleted file mode 100644
index 22202796547..00000000000
--- a/db/migrate/20150327223628_add_devise_two_factor_to_users.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddDeviseTwoFactorToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :encrypted_otp_secret, :string
-    add_column :users, :encrypted_otp_secret_iv, :string
-    add_column :users, :encrypted_otp_secret_salt, :string
-    add_column :users, :otp_required_for_login, :boolean
-  end
-end
diff --git a/db/migrate/20150328132231_add_max_attachment_size_to_application_settings.rb b/db/migrate/20150328132231_add_max_attachment_size_to_application_settings.rb
deleted file mode 100644
index 4ce60a257cb..00000000000
--- a/db/migrate/20150328132231_add_max_attachment_size_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddMaxAttachmentSizeToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :max_attachment_size, :integer, default: 10, null: false
-  end
-end
diff --git a/db/migrate/20150331183602_add_devise_two_factor_backupable_to_users.rb b/db/migrate/20150331183602_add_devise_two_factor_backupable_to_users.rb
deleted file mode 100644
index 792b98c91f0..00000000000
--- a/db/migrate/20150331183602_add_devise_two_factor_backupable_to_users.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddDeviseTwoFactorBackupableToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :otp_backup_codes, :text
-  end
-end
diff --git a/db/migrate/20150406133311_add_invite_data_to_member.rb b/db/migrate/20150406133311_add_invite_data_to_member.rb
deleted file mode 100644
index eee991185ab..00000000000
--- a/db/migrate/20150406133311_add_invite_data_to_member.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# rubocop:disable all
-class AddInviteDataToMember < ActiveRecord::Migration[4.2]
-  def up
-    add_column :members, :created_by_id, :integer
-    add_column :members, :invite_email, :string
-    add_column :members, :invite_token, :string
-    add_column :members, :invite_accepted_at, :datetime
-
-    change_column :members, :user_id, :integer, null: true
-
-    add_index :members, :invite_token, unique: true
-  end
-
-  def down
-    remove_index :members, :invite_token
-
-    change_column :members, :user_id, :integer, null: false
-
-    remove_column :members, :invite_accepted_at
-    remove_column :members, :invite_token
-    remove_column :members, :invite_email
-    remove_column :members, :created_by_id
-  end
-end
diff --git a/db/migrate/20150411000035_fix_identities.rb b/db/migrate/20150411000035_fix_identities.rb
deleted file mode 100644
index a449fc51ecc..00000000000
--- a/db/migrate/20150411000035_fix_identities.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-class FixIdentities < ActiveRecord::Migration[4.2]
-  def up
-    # Up until now, legacy 'ldap' references in the database were charitably
-    # interpreted to point to the first LDAP server specified in the GitLab
-    # configuration. So if the database said 'provider: ldap' but the first
-    # LDAP server was called 'ldapmain', then we would try to interpret
-    # 'provider: ldap' as if it said 'provider: ldapmain'. This migration (and
-    # accompanying changes in the GitLab LDAP code) get rid of this complicated
-    # behavior. Any database references to 'provider: ldap' get rewritten to
-    # whatever the code would have interpreted it as, i.e. as a reference to
-    # the first LDAP server specified in gitlab.yml / gitlab.rb.
-    new_provider = if Gitlab.config.ldap.enabled
-                     first_ldap_server = Gitlab.config.ldap.servers.values.first
-                     first_ldap_server['provider_name']
-                   else
-                     'ldapmain'
-                   end
-
-    # Delete duplicate identities
-    # We use a sort of self-join to find rows in identities which match on
-    # user_id but where one has provider 'ldap'. We delete the duplicate row
-    # with provider 'ldap'.
-    delete_statement = ''
-    case adapter_name.downcase
-    when /^mysql/
-      delete_statement << 'DELETE FROM id1 USING identities AS id1, identities AS id2'
-    when 'postgresql'
-      delete_statement << 'DELETE FROM identities AS id1 USING identities AS id2'
-    else
-      raise "Unknown DB adapter: #{adapter_name}"
-    end
-    delete_statement << " WHERE id1.user_id = id2.user_id AND id1.provider = 'ldap' AND id2.provider = '#{new_provider}'"
-    execute delete_statement
-
-    # Update legacy identities
-    execute "UPDATE identities SET provider = '#{new_provider}' WHERE provider = 'ldap'"
-
-    if table_exists?('ldap_group_links')
-      execute "UPDATE ldap_group_links SET provider = '#{new_provider}' WHERE provider IS NULL OR provider = 'ldap'"
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20150411180045_rename_buildbox_service.rb b/db/migrate/20150411180045_rename_buildbox_service.rb
deleted file mode 100644
index ac4ccdfb723..00000000000
--- a/db/migrate/20150411180045_rename_buildbox_service.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class RenameBuildboxService < ActiveRecord::Migration[4.2]
-  def up
-    execute "UPDATE services SET type = 'BuildkiteService' WHERE type = 'BuildboxService';"
-  end
-
-  def down
-    execute "UPDATE services SET type = 'BuildboxService' WHERE type = 'BuildkiteService';"
-  end
-end
diff --git a/db/migrate/20150413192223_add_public_email_to_users.rb b/db/migrate/20150413192223_add_public_email_to_users.rb
deleted file mode 100644
index 991f0c668c3..00000000000
--- a/db/migrate/20150413192223_add_public_email_to_users.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddPublicEmailToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :public_email, :string, default: "", null: false
-  end
-end
diff --git a/db/migrate/20150417121913_create_project_import_data.rb b/db/migrate/20150417121913_create_project_import_data.rb
deleted file mode 100644
index 383f64fd2c6..00000000000
--- a/db/migrate/20150417121913_create_project_import_data.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class CreateProjectImportData < ActiveRecord::Migration[4.2]
-  def change
-    create_table :project_import_data do |t|
-      t.references :project
-      t.text :data
-    end
-  end
-end
diff --git a/db/migrate/20150417122318_remove_import_data_from_project.rb b/db/migrate/20150417122318_remove_import_data_from_project.rb
deleted file mode 100644
index c9a225a9d17..00000000000
--- a/db/migrate/20150417122318_remove_import_data_from_project.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class RemoveImportDataFromProject < ActiveRecord::Migration[4.2]
-  def up
-    remove_column :projects, :import_data
-  end
-
-  def down
-    add_column :projects, :import_data, :text
-  end
-end
diff --git a/db/migrate/20150421120000_remove_periods_at_ends_of_usernames.rb b/db/migrate/20150421120000_remove_periods_at_ends_of_usernames.rb
deleted file mode 100644
index d2e7656c9d4..00000000000
--- a/db/migrate/20150421120000_remove_periods_at_ends_of_usernames.rb
+++ /dev/null
@@ -1,89 +0,0 @@
-# rubocop:disable all
-class RemovePeriodsAtEndsOfUsernames < ActiveRecord::Migration[4.2]
-  include Gitlab::ShellAdapter
-
-  class Namespace < ActiveRecord::Base
-    class << self
-      def find_by_path_or_name(path)
-        find_by("lower(path) = :path OR lower(name) = :path", path: path.downcase)
-      end
-
-      def clean_path(path)
-        path = path.dup
-        # Get the email username by removing everything after an `@` sign.
-        path.gsub!(/@.*\z/,             "")
-        # Usernames can't end in .git, so remove it.
-        path.gsub!(/\.git\z/,           "")
-        # Remove dashes at the start of the username.
-        path.gsub!(/\A-+/,              "")
-        # Remove periods at the end of the username.
-        path.gsub!(/\.+\z/,             "")
-        # Remove everything that's not in the list of allowed characters.
-        path.gsub!(/[^a-zA-Z0-9_\-\.]/, "")
-
-        # Users with the great usernames of "." or ".." would end up with a blank username.
-        # Work around that by setting their username to "blank", followed by a counter.
-        path = "blank" if path.blank?
-
-        counter = 0
-        base = path
-        while Namespace.find_by_path_or_name(path)
-          counter += 1
-          path = "#{base}#{counter}"
-        end
-
-        path
-      end
-    end
-  end
-
-  def up
-    changed_paths = {}
-
-    select_all("SELECT id, username FROM users WHERE username LIKE '%.'").each do |user|
-      username_was = user["username"]
-      username = Namespace.clean_path(username_was)
-      changed_paths[username_was] = username
-
-      username = quote_string(username)
-      execute "UPDATE users SET username = '#{username}' WHERE id = #{user["id"]}"
-      execute "UPDATE namespaces SET path = '#{username}', name = '#{username}' WHERE type IS NULL AND owner_id = #{user["id"]}"
-    end
-
-    select_all("SELECT id, path FROM namespaces WHERE type = 'Group' AND path LIKE '%.'").each do |group|
-      path_was = group["path"]
-      path = Namespace.clean_path(path_was)
-      changed_paths[path_was] = path
-
-      path = quote_string(path)
-      execute "UPDATE namespaces SET path = '#{path}' WHERE id = #{group["id"]}"
-    end
-
-    changed_paths.each do |path_was, path|
-      # Don't attempt to move if original path only contains periods.
-      next if path_was =~ /\A\.+\z/
-
-      if gitlab_shell.mv_namespace(path_was, path)
-        # If repositories moved successfully we need to remove old satellites
-        # and send update instructions to users.
-        # However we cannot allow rollback since we moved namespace dir
-        # So we basically we mute exceptions in next actions
-        begin
-          gitlab_shell.rm_satellites(path_was)
-          # We cannot send update instructions since models and mailers
-          # can't safely be used from migrations as they may be written for 
-          # later versions of the database.
-          # send_update_instructions
-        rescue
-          # Returning false does not rollback after_* transaction but gives
-          # us information about failing some of tasks
-          false
-        end
-      else
-        # if we cannot move namespace directory we should rollback
-        # db changes in order to prevent out of sync between db and fs
-        raise Exception.new('namespace directory cannot be moved')
-      end
-    end
-  end
-end
diff --git a/db/migrate/20150423033240_add_default_project_visibililty_to_application_settings.rb b/db/migrate/20150423033240_add_default_project_visibililty_to_application_settings.rb
deleted file mode 100644
index e0f35da422a..00000000000
--- a/db/migrate/20150423033240_add_default_project_visibililty_to_application_settings.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddDefaultProjectVisibililtyToApplicationSettings < ActiveRecord::Migration[4.2]
-  def up
-    add_column :application_settings, :default_project_visibility, :integer
-    visibility = Settings.gitlab.default_projects_features['visibility_level']
-    execute("update application_settings set default_project_visibility = #{visibility}")
-  end
-
-  def down
-    remove_column :application_settings, :default_project_visibility
-  end
-end
diff --git a/db/migrate/20150425164646_gitlab_change_collation_for_tag_names.acts_as_taggable_on_engine.rb b/db/migrate/20150425164646_gitlab_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
deleted file mode 100644
index 5b2e692eb17..00000000000
--- a/db/migrate/20150425164646_gitlab_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# This migration is a duplicate of 20150425164651_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
-# It shold be applied before the index additions to ensure that `name` is case sensitive.
-
-class GitlabChangeCollationForTagNames < ActiveRecord::Migration[4.2]
-  def up
-    if ActsAsTaggableOn::Utils.using_mysql?
-      execute("ALTER TABLE tags MODIFY name varchar(255) CHARACTER SET utf8 COLLATE utf8_bin;")
-    end
-  end
-end
diff --git a/db/migrate/20150425164647_remove_duplicate_tags.rb b/db/migrate/20150425164647_remove_duplicate_tags.rb
deleted file mode 100644
index 5165eb65695..00000000000
--- a/db/migrate/20150425164647_remove_duplicate_tags.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable all
-class RemoveDuplicateTags < ActiveRecord::Migration[4.2]
-  def up
-    select_all("SELECT name, COUNT(id) as cnt FROM tags GROUP BY name HAVING COUNT(id) > 1").each do |tag|
-      tag_name = quote_string(tag["name"])
-      duplicate_ids = select_all("SELECT id FROM tags WHERE name = '#{tag_name}'").map{|tag| tag["id"]}
-      origin_tag_id = duplicate_ids.first
-      duplicate_ids.delete origin_tag_id
-
-      execute("UPDATE taggings SET tag_id = #{origin_tag_id} WHERE tag_id IN(#{duplicate_ids.join(",")})")
-      execute("DELETE FROM tags WHERE id IN(#{duplicate_ids.join(",")})")
-    end
-  end
-
-  def down
-    
-  end
-end
diff --git a/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb b/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb
deleted file mode 100644
index d1951f640bb..00000000000
--- a/db/migrate/20150425164648_add_missing_unique_indices.acts_as_taggable_on_engine.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# rubocop:disable all
-# This migration comes from acts_as_taggable_on_engine (originally 2)
-class AddMissingUniqueIndices < ActiveRecord::Migration[4.2]
-  def self.up
-    add_index :tags, :name, unique: true
-
-    # pre-GitLab v6.7.0 may not have these indices since there were no
-    # migrations for them
-    if index_exists?(:taggings, :tag_id)
-      remove_index :taggings, :tag_id
-    end
-
-    if index_exists?(:taggings, [:taggable_id, :taggable_type, :context])
-      remove_index :taggings, [:taggable_id, :taggable_type, :context]
-    end
-    add_index :taggings,
-              [:tag_id, :taggable_id, :taggable_type, :context, :tagger_id, :tagger_type],
-              unique: true, name: 'taggings_idx'
-  end
-
-  def self.down
-    remove_index :tags, :name
-
-    remove_index :taggings, name: 'taggings_idx'
-    add_index :taggings, :tag_id
-    add_index :taggings, [:taggable_id, :taggable_type, :context]
-  end
-end
diff --git a/db/migrate/20150425164649_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb b/db/migrate/20150425164649_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb
deleted file mode 100644
index b9af394f09b..00000000000
--- a/db/migrate/20150425164649_add_taggings_counter_cache_to_tags.acts_as_taggable_on_engine.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable all
-# This migration comes from acts_as_taggable_on_engine (originally 3)
-class AddTaggingsCounterCacheToTags < ActiveRecord::Migration[4.2]
-  def self.up
-    add_column :tags, :taggings_count, :integer, default: 0
-
-    ActsAsTaggableOn::Tag.reset_column_information
-    ActsAsTaggableOn::Tag.find_each do |tag|
-      ActsAsTaggableOn::Tag.reset_counters(tag.id, :taggings)
-    end
-  end
-
-  def self.down
-    remove_column :tags, :taggings_count
-  end
-end
diff --git a/db/migrate/20150425164650_add_missing_taggable_index.acts_as_taggable_on_engine.rb b/db/migrate/20150425164650_add_missing_taggable_index.acts_as_taggable_on_engine.rb
deleted file mode 100644
index f28737615d7..00000000000
--- a/db/migrate/20150425164650_add_missing_taggable_index.acts_as_taggable_on_engine.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# This migration comes from acts_as_taggable_on_engine (originally 4)
-class AddMissingTaggableIndex < ActiveRecord::Migration[4.2]
-  def self.up
-    add_index :taggings, [:taggable_id, :taggable_type, :context]
-  end
-
-  def self.down
-    remove_index :taggings, [:taggable_id, :taggable_type, :context]
-  end
-end
diff --git a/db/migrate/20150425164651_change_collation_for_tag_names.acts_as_taggable_on_engine.rb b/db/migrate/20150425164651_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
deleted file mode 100644
index 4c144a8693f..00000000000
--- a/db/migrate/20150425164651_change_collation_for_tag_names.acts_as_taggable_on_engine.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# This migration comes from acts_as_taggable_on_engine (originally 5)
-# This migration is added to circumvent issue #623 and have special characters
-# work properly
-class ChangeCollationForTagNames < ActiveRecord::Migration[4.2]
-  def up
-    if ActsAsTaggableOn::Utils.using_mysql?
-      execute("ALTER TABLE tags MODIFY name varchar(255) CHARACTER SET utf8 COLLATE utf8_bin;")
-    end
-  end
-end
diff --git a/db/migrate/20150425173433_add_default_snippet_visibility_to_app_settings.rb b/db/migrate/20150425173433_add_default_snippet_visibility_to_app_settings.rb
deleted file mode 100644
index a3a86d26767..00000000000
--- a/db/migrate/20150425173433_add_default_snippet_visibility_to_app_settings.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddDefaultSnippetVisibilityToAppSettings < ActiveRecord::Migration[4.2]
-  def up
-    add_column :application_settings, :default_snippet_visibility, :integer
-    visibility = Settings.gitlab.default_projects_features['visibility_level']
-    execute("update application_settings set default_snippet_visibility = #{visibility}")
-  end
-
-  def down
-    remove_column :application_settings, :default_snippet_visibility
-  end
-end
diff --git a/db/migrate/20150429002313_remove_abandoned_group_members_records.rb b/db/migrate/20150429002313_remove_abandoned_group_members_records.rb
deleted file mode 100644
index 370b807dd50..00000000000
--- a/db/migrate/20150429002313_remove_abandoned_group_members_records.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class RemoveAbandonedGroupMembersRecords < ActiveRecord::Migration[4.2]
-  def up
-    execute("DELETE FROM members WHERE type = 'GroupMember' AND source_id NOT IN(\
-        SELECT id FROM namespaces WHERE type='Group')")
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20150502064022_add_restricted_signup_domains_to_application_settings.rb b/db/migrate/20150502064022_add_restricted_signup_domains_to_application_settings.rb
deleted file mode 100644
index df777263ecb..00000000000
--- a/db/migrate/20150502064022_add_restricted_signup_domains_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddRestrictedSignupDomainsToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :restricted_signup_domains, :text
-  end
-end
diff --git a/db/migrate/20150509180749_convert_legacy_reference_notes.rb b/db/migrate/20150509180749_convert_legacy_reference_notes.rb
deleted file mode 100644
index 84d4eb9e51f..00000000000
--- a/db/migrate/20150509180749_convert_legacy_reference_notes.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# Convert legacy Markdown-emphasized notes to the current, non-emphasized format
-#
-#   _mentioned in 54f7727c850972f0401c1312a7c4a6a380de5666_
-#
-# becomes
-#
-#   mentioned in 54f7727c850972f0401c1312a7c4a6a380de5666
-class ConvertLegacyReferenceNotes < ActiveRecord::Migration[4.2]
-  def up
-    quoted_column_name = ActiveRecord::Base.connection.quote_column_name('system')
-    execute %Q{UPDATE notes SET note = trim(both '_' from note) WHERE #{quoted_column_name} = true AND note LIKE '\_%\_'}
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/migrate/20150516060434_add_note_events_to_web_hooks.rb b/db/migrate/20150516060434_add_note_events_to_web_hooks.rb
deleted file mode 100644
index ddf26240b8b..00000000000
--- a/db/migrate/20150516060434_add_note_events_to_web_hooks.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddNoteEventsToWebHooks < ActiveRecord::Migration[4.2]
-  def up
-    add_column :web_hooks, :note_events, :boolean, default: false, null: false
-  end
-
-  def down
-    remove_column :web_hooks, :note_events, :boolean
-  end
-end
diff --git a/db/migrate/20150529111607_add_user_oauth_applications_to_application_settings.rb b/db/migrate/20150529111607_add_user_oauth_applications_to_application_settings.rb
deleted file mode 100644
index 507e905acd6..00000000000
--- a/db/migrate/20150529111607_add_user_oauth_applications_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddUserOauthApplicationsToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :user_oauth_applications, :bool, default: true
-  end
-end
diff --git a/db/migrate/20150529150354_add_after_sign_out_path_for_application_settings.rb b/db/migrate/20150529150354_add_after_sign_out_path_for_application_settings.rb
deleted file mode 100644
index f43f20def5b..00000000000
--- a/db/migrate/20150529150354_add_after_sign_out_path_for_application_settings.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddAfterSignOutPathForApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :after_sign_out_path, :string
-  end
-end
\ No newline at end of file
diff --git a/db/migrate/20150609141121_add_session_expire_delay_for_application_settings.rb b/db/migrate/20150609141121_add_session_expire_delay_for_application_settings.rb
deleted file mode 100644
index 93959a9010f..00000000000
--- a/db/migrate/20150609141121_add_session_expire_delay_for_application_settings.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddSessionExpireDelayForApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    unless column_exists?(:application_settings, :session_expire_delay)
-      add_column :application_settings, :session_expire_delay, :integer, default: 10080, null: false
-    end
-  end
-end
diff --git a/db/migrate/20150610065936_add_dashboard_to_users.rb b/db/migrate/20150610065936_add_dashboard_to_users.rb
deleted file mode 100644
index a0bf5f31f00..00000000000
--- a/db/migrate/20150610065936_add_dashboard_to_users.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddDashboardToUsers < ActiveRecord::Migration[4.2]
-  def up
-    add_column :users, :dashboard, :integer, default: 0
-  end
-
-  def down
-    remove_column :users, :dashboard
-  end
-end
diff --git a/db/migrate/20150620233230_add_default_otp_required_for_login_value.rb b/db/migrate/20150620233230_add_default_otp_required_for_login_value.rb
deleted file mode 100644
index 4a085ff06f3..00000000000
--- a/db/migrate/20150620233230_add_default_otp_required_for_login_value.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddDefaultOtpRequiredForLoginValue < ActiveRecord::Migration[4.2]
-  def up
-    execute %q{UPDATE users SET otp_required_for_login = FALSE WHERE otp_required_for_login IS NULL}
-
-    change_column :users, :otp_required_for_login, :boolean, default: false, null: false
-  end
-
-  def down
-    change_column :users, :otp_required_for_login, :boolean, null: true
-  end
-end
diff --git a/db/migrate/20150713160110_add_project_view_to_users.rb b/db/migrate/20150713160110_add_project_view_to_users.rb
deleted file mode 100644
index fea63576187..00000000000
--- a/db/migrate/20150713160110_add_project_view_to_users.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddProjectViewToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :project_view, :integer, default: 0
-  end
-end
diff --git a/db/migrate/20150717130904_add_commits_count_to_project.rb b/db/migrate/20150717130904_add_commits_count_to_project.rb
deleted file mode 100644
index df6c88f2961..00000000000
--- a/db/migrate/20150717130904_add_commits_count_to_project.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddCommitsCountToProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :commit_count, :integer, default: 0
-  end
-end
diff --git a/db/migrate/20150730122406_add_updated_by_to_issuables_and_notes.rb b/db/migrate/20150730122406_add_updated_by_to_issuables_and_notes.rb
deleted file mode 100644
index fab126c3d04..00000000000
--- a/db/migrate/20150730122406_add_updated_by_to_issuables_and_notes.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddUpdatedByToIssuablesAndNotes < ActiveRecord::Migration[4.2]
-  def change
-    add_column :notes, :updated_by_id, :integer
-    add_column :issues, :updated_by_id, :integer
-    add_column :merge_requests, :updated_by_id, :integer
-  end
-end
diff --git a/db/migrate/20150806104937_create_abuse_reports.rb b/db/migrate/20150806104937_create_abuse_reports.rb
deleted file mode 100644
index be4fe8d1cfd..00000000000
--- a/db/migrate/20150806104937_create_abuse_reports.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable all
-class CreateAbuseReports < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :abuse_reports do |t|
-      t.integer :reporter_id
-      t.integer :user_id
-      t.text :message
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20150812080800_add_settings_import_sources.rb b/db/migrate/20150812080800_add_settings_import_sources.rb
deleted file mode 100644
index 59db31c868a..00000000000
--- a/db/migrate/20150812080800_add_settings_import_sources.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# rubocop:disable all
-require 'yaml'
-
-class AddSettingsImportSources < ActiveRecord::Migration[4.2]
-  def change
-    unless column_exists?(:application_settings, :import_sources)
-      add_column :application_settings, :import_sources, :text
-      import_sources = YAML::dump(Settings.gitlab['import_sources'])
-      execute("update application_settings set import_sources = '#{import_sources}'")
-    end
-  end
-end
diff --git a/db/migrate/20150814065925_remove_oauth_tokens_from_users.rb b/db/migrate/20150814065925_remove_oauth_tokens_from_users.rb
deleted file mode 100644
index f0080ee0b46..00000000000
--- a/db/migrate/20150814065925_remove_oauth_tokens_from_users.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# rubocop:disable all
-class RemoveOauthTokensFromUsers < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :users, :github_access_token, :string
-    remove_column :users, :gitlab_access_token, :string
-    remove_column :users, :bitbucket_access_token, :string
-    remove_column :users, :bitbucket_access_token_secret, :string
-  end
-end
diff --git a/db/migrate/20150817163600_deduplicate_user_identities.rb b/db/migrate/20150817163600_deduplicate_user_identities.rb
deleted file mode 100644
index 973a87e07ea..00000000000
--- a/db/migrate/20150817163600_deduplicate_user_identities.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable all
-class DeduplicateUserIdentities < ActiveRecord::Migration[4.2]
-  def change
-    execute 'DROP TABLE IF EXISTS tt_migration_DeduplicateUserIdentities;'
-    execute 'CREATE TABLE tt_migration_DeduplicateUserIdentities AS SELECT id,provider,user_id FROM identities;'
-    execute 'DELETE FROM identities WHERE id NOT IN ( SELECT MIN(id) FROM tt_migration_DeduplicateUserIdentities GROUP BY user_id, provider);'
-    execute 'DROP TABLE IF EXISTS tt_migration_DeduplicateUserIdentities;'
-  end
-
-  def down
-    # This is an irreversible migration;
-    # If someone is trying to rollback for other reasons, we should not throw an Exception.
-    # raise ActiveRecord::IrreversibleMigration
-  end
-end
diff --git a/db/migrate/20150818213832_add_sent_notifications.rb b/db/migrate/20150818213832_add_sent_notifications.rb
deleted file mode 100644
index 45e95a843e1..00000000000
--- a/db/migrate/20150818213832_add_sent_notifications.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddSentNotifications < ActiveRecord::Migration[4.2]
-  def change
-    create_table :sent_notifications do |t|
-      t.references :project
-      t.references :noteable, polymorphic: true
-      t.references :recipient
-      t.string :commit_id
-      t.string :reply_key, null: false
-    end
-
-    add_index :sent_notifications, :reply_key, unique: true
-  end
-end
diff --git a/db/migrate/20150824002011_add_enable_ssl_verification.rb b/db/migrate/20150824002011_add_enable_ssl_verification.rb
deleted file mode 100644
index 2d877914f39..00000000000
--- a/db/migrate/20150824002011_add_enable_ssl_verification.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddEnableSslVerification < ActiveRecord::Migration[4.2]
-  def change
-    add_column :web_hooks, :enable_ssl_verification, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20150826001931_add_ci_tables.rb b/db/migrate/20150826001931_add_ci_tables.rb
deleted file mode 100644
index aa2af44a15b..00000000000
--- a/db/migrate/20150826001931_add_ci_tables.rb
+++ /dev/null
@@ -1,191 +0,0 @@
-# rubocop:disable all
-class AddCiTables < ActiveRecord::Migration[4.2]
-  def change
-    create_table "ci_application_settings", force: true do |t|
-      t.boolean  "all_broken_builds"
-      t.boolean  "add_pusher"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    create_table "ci_builds", force: true do |t|
-      t.integer  "project_id"
-      t.string   "status"
-      t.datetime "finished_at"
-      t.text     "trace"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.datetime "started_at"
-      t.integer  "runner_id"
-      t.float    "coverage"
-      t.integer  "commit_id"
-      t.text     "commands"
-      t.integer  "job_id"
-      t.string   "name"
-      t.boolean  "deploy",             default: false
-      t.text     "options"
-      t.boolean  "allow_failure",      default: false, null: false
-      t.string   "stage"
-      t.integer  "trigger_request_id"
-    end
-
-    add_index "ci_builds", ["commit_id"], name: "index_ci_builds_on_commit_id", using: :btree
-    add_index "ci_builds", ["project_id", "commit_id"], name: "index_ci_builds_on_project_id_and_commit_id", using: :btree
-    add_index "ci_builds", ["project_id"], name: "index_ci_builds_on_project_id", using: :btree
-    add_index "ci_builds", ["runner_id"], name: "index_ci_builds_on_runner_id", using: :btree
-
-    create_table "ci_commits", force: true do |t|
-      t.integer  "project_id"
-      t.string   "ref"
-      t.string   "sha"
-      t.string   "before_sha"
-      t.text     "push_data"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.boolean  "tag",          default: false
-      t.text     "yaml_errors"
-      t.datetime "committed_at"
-    end
-
-    add_index "ci_commits", ["project_id", "committed_at"], name: "index_ci_commits_on_project_id_and_committed_at", using: :btree
-    add_index "ci_commits", ["project_id", "sha"], name: "index_ci_commits_on_project_id_and_sha", using: :btree
-    add_index "ci_commits", ["project_id"], name: "index_ci_commits_on_project_id", using: :btree
-    add_index "ci_commits", ["sha"], name: "index_ci_commits_on_sha", using: :btree
-
-    create_table "ci_events", force: true do |t|
-      t.integer  "project_id"
-      t.integer  "user_id"
-      t.integer  "is_admin"
-      t.text     "description"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    add_index "ci_events", ["created_at"], name: "index_ci_events_on_created_at", using: :btree
-    add_index "ci_events", ["is_admin"], name: "index_ci_events_on_is_admin", using: :btree
-    add_index "ci_events", ["project_id"], name: "index_ci_events_on_project_id", using: :btree
-
-    create_table "ci_jobs", force: true do |t|
-      t.integer  "project_id",                          null: false
-      t.text     "commands"
-      t.boolean  "active",         default: true,       null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string   "name"
-      t.boolean  "build_branches", default: true,       null: false
-      t.boolean  "build_tags",     default: false,      null: false
-      t.string   "job_type",       default: "parallel"
-      t.string   "refs"
-      t.datetime "deleted_at"
-    end
-
-    add_index "ci_jobs", ["deleted_at"], name: "index_ci_jobs_on_deleted_at", using: :btree
-    add_index "ci_jobs", ["project_id"], name: "index_ci_jobs_on_project_id", using: :btree
-
-    create_table "ci_projects", force: true do |t|
-      t.string   "name",                                     null: false
-      t.integer  "timeout",                  default: 3600,  null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string   "token"
-      t.string   "default_ref"
-      t.string   "path"
-      t.boolean  "always_build",             default: false, null: false
-      t.integer  "polling_interval"
-      t.boolean  "public",                   default: false, null: false
-      t.string   "ssh_url_to_repo"
-      t.integer  "gitlab_id"
-      t.boolean  "allow_git_fetch",          default: true,  null: false
-      t.string   "email_recipients",         default: "",    null: false
-      t.boolean  "email_add_pusher",         default: true,  null: false
-      t.boolean  "email_only_broken_builds", default: true,  null: false
-      t.string   "skip_refs"
-      t.string   "coverage_regex"
-      t.boolean  "shared_runners_enabled",   default: false
-      t.text     "generated_yaml_config"
-    end
-
-    create_table "ci_runner_projects", force: true do |t|
-      t.integer  "runner_id",  null: false
-      t.integer  "project_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    add_index "ci_runner_projects", ["project_id"], name: "index_ci_runner_projects_on_project_id", using: :btree
-    add_index "ci_runner_projects", ["runner_id"], name: "index_ci_runner_projects_on_runner_id", using: :btree
-
-    create_table "ci_runners", force: true do |t|
-      t.string   "token"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string   "description"
-      t.datetime "contacted_at"
-      t.boolean  "active",       default: true,  null: false
-      t.boolean  "is_shared",    default: false
-      t.string   "name"
-      t.string   "version"
-      t.string   "revision"
-      t.string   "platform"
-      t.string   "architecture"
-    end
-
-    create_table "ci_services", force: true do |t|
-      t.string   "type"
-      t.string   "title"
-      t.integer  "project_id",                 null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.boolean  "active",     default: false, null: false
-      t.text     "properties"
-    end
-
-    add_index "ci_services", ["project_id"], name: "index_ci_services_on_project_id", using: :btree
-
-    create_table "ci_sessions", force: true do |t|
-      t.string   "session_id", null: false
-      t.text     "data"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    add_index "ci_sessions", ["session_id"], name: "index_ci_sessions_on_session_id", using: :btree
-    add_index "ci_sessions", ["updated_at"], name: "index_ci_sessions_on_updated_at", using: :btree
-
-    create_table "ci_trigger_requests", force: true do |t|
-      t.integer  "trigger_id", null: false
-      t.text     "variables"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.integer  "commit_id"
-    end
-
-    create_table "ci_triggers", force: true do |t|
-      t.string   "token"
-      t.integer  "project_id", null: false
-      t.datetime "deleted_at"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    add_index "ci_triggers", ["deleted_at"], name: "index_ci_triggers_on_deleted_at", using: :btree
-
-    create_table "ci_variables", force: true do |t|
-      t.integer "project_id",           null: false
-      t.string  "key"
-      t.text    "value"
-      t.text    "encrypted_value"
-      t.string  "encrypted_value_salt"
-      t.string  "encrypted_value_iv"
-    end
-
-    add_index "ci_variables", ["project_id"], name: "index_ci_variables_on_project_id", using: :btree
-
-    create_table "ci_web_hooks", force: true do |t|
-      t.string   "url",        null: false
-      t.integer  "project_id", null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-  end
-end
diff --git a/db/migrate/20150827121444_add_fast_forward_option_to_project.rb b/db/migrate/20150827121444_add_fast_forward_option_to_project.rb
deleted file mode 100644
index bf7db2fb12b..00000000000
--- a/db/migrate/20150827121444_add_fast_forward_option_to_project.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# rubocop:disable all
-class AddFastForwardOptionToProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # We put condition here because of a mistake we made a couple of years ago
-    # see https://gitlab.com/gitlab-org/gitlab-ce/issues/39382#note_45716103
-    unless column_exists?(:projects, :merge_requests_ff_only_enabled)
-      add_column_with_default(:projects, :merge_requests_ff_only_enabled, :boolean, default: false)
-    end
-  end
-
-  def down
-    if column_exists?(:projects, :merge_requests_ff_only_enabled)
-      remove_column(:projects, :merge_requests_ff_only_enabled)
-    end
-  end
-end
diff --git a/db/migrate/20150902001023_add_template_to_label.rb b/db/migrate/20150902001023_add_template_to_label.rb
deleted file mode 100644
index 10769f29baa..00000000000
--- a/db/migrate/20150902001023_add_template_to_label.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddTemplateToLabel < ActiveRecord::Migration[4.2]
-  def change
-    add_column :labels, :template, :boolean, default: false
-  end
-end
\ No newline at end of file
diff --git a/db/migrate/20150914215247_add_ci_tags.rb b/db/migrate/20150914215247_add_ci_tags.rb
deleted file mode 100644
index 9afa4540540..00000000000
--- a/db/migrate/20150914215247_add_ci_tags.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# rubocop:disable all
-class AddCiTags < ActiveRecord::Migration[4.2]
-  def change
-    create_table "ci_taggings", force: true do |t|
-      t.integer  "tag_id"
-      t.integer  "taggable_id"
-      t.string   "taggable_type"
-      t.integer  "tagger_id"
-      t.string   "tagger_type"
-      t.string   "context",       limit: 128
-      t.datetime "created_at"
-    end
-
-    add_index "ci_taggings", ["tag_id", "taggable_id", "taggable_type", "context", "tagger_id", "tagger_type"], name: "ci_taggings_idx", unique: true, using: :btree
-    add_index "ci_taggings", ["taggable_id", "taggable_type", "context"], name: "index_ci_taggings_on_taggable_id_and_taggable_type_and_context", using: :btree
-
-    create_table "ci_tags", force: true do |t|
-      t.string  "name"
-      t.integer "taggings_count", default: 0
-    end
-
-    add_index "ci_tags", ["name"], name: "index_ci_tags_on_name", unique: true, using: :btree
-  end
-end
diff --git a/db/migrate/20150915001905_enable_ssl_verification_by_default.rb b/db/migrate/20150915001905_enable_ssl_verification_by_default.rb
deleted file mode 100644
index ddd07179753..00000000000
--- a/db/migrate/20150915001905_enable_ssl_verification_by_default.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class EnableSslVerificationByDefault < ActiveRecord::Migration[4.2]
-  def change
-    change_column :web_hooks, :enable_ssl_verification, :boolean, default: true
-  end
-end
diff --git a/db/migrate/20150916000405_enable_ssl_verification_for_web_hooks.rb b/db/migrate/20150916000405_enable_ssl_verification_for_web_hooks.rb
deleted file mode 100644
index 49081c9d749..00000000000
--- a/db/migrate/20150916000405_enable_ssl_verification_for_web_hooks.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class EnableSslVerificationForWebHooks < ActiveRecord::Migration[4.2]
-  def up
-    execute("UPDATE web_hooks SET enable_ssl_verification = true")
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20150916114643_add_help_page_text_to_application_settings.rb b/db/migrate/20150916114643_add_help_page_text_to_application_settings.rb
deleted file mode 100644
index 52867632880..00000000000
--- a/db/migrate/20150916114643_add_help_page_text_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddHelpPageTextToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :help_page_text, :text
-  end
-end
diff --git a/db/migrate/20150916145038_add_index_for_committed_at_and_id.rb b/db/migrate/20150916145038_add_index_for_committed_at_and_id.rb
deleted file mode 100644
index bf78aacd9f4..00000000000
--- a/db/migrate/20150916145038_add_index_for_committed_at_and_id.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddIndexForCommittedAtAndId < ActiveRecord::Migration[4.2]
-  def change
-    add_index :ci_commits, [:project_id, :committed_at, :id]
-  end
-end
diff --git a/db/migrate/20150918084513_add_ci_enabled_to_application_settings.rb b/db/migrate/20150918084513_add_ci_enabled_to_application_settings.rb
deleted file mode 100644
index 153c1a798c3..00000000000
--- a/db/migrate/20150918084513_add_ci_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddCiEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :ci_enabled, :boolean, null: false, default: true
-  end
-end
diff --git a/db/migrate/20150918161719_remove_invalid_milestones_from_merge_requests.rb b/db/migrate/20150918161719_remove_invalid_milestones_from_merge_requests.rb
deleted file mode 100644
index 52651e16324..00000000000
--- a/db/migrate/20150918161719_remove_invalid_milestones_from_merge_requests.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class RemoveInvalidMilestonesFromMergeRequests < ActiveRecord::Migration[4.2]
-  def up
-    execute("UPDATE merge_requests SET milestone_id = NULL where milestone_id NOT IN (SELECT id FROM milestones)")
-  end
-end
diff --git a/db/migrate/20150920010715_add_consumed_timestep_to_users.rb b/db/migrate/20150920010715_add_consumed_timestep_to_users.rb
deleted file mode 100644
index c69944b1e94..00000000000
--- a/db/migrate/20150920010715_add_consumed_timestep_to_users.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddConsumedTimestepToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :consumed_timestep, :integer
-  end
-end
diff --git a/db/migrate/20150920161119_add_line_code_to_sent_notification.rb b/db/migrate/20150920161119_add_line_code_to_sent_notification.rb
deleted file mode 100644
index 671476f0b07..00000000000
--- a/db/migrate/20150920161119_add_line_code_to_sent_notification.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddLineCodeToSentNotification < ActiveRecord::Migration[4.2]
-  def change
-    add_column :sent_notifications, :line_code, :string
-  end
-end
diff --git a/db/migrate/20150924125150_add_project_id_to_ci_commit.rb b/db/migrate/20150924125150_add_project_id_to_ci_commit.rb
deleted file mode 100644
index c9f16b0f3f9..00000000000
--- a/db/migrate/20150924125150_add_project_id_to_ci_commit.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddProjectIdToCiCommit < ActiveRecord::Migration[4.2]
-  def up
-    add_column :ci_commits, :gl_project_id, :integer
-  end
-end
diff --git a/db/migrate/20150924125436_migrate_project_id_for_ci_commits.rb b/db/migrate/20150924125436_migrate_project_id_for_ci_commits.rb
deleted file mode 100644
index ff31e70874f..00000000000
--- a/db/migrate/20150924125436_migrate_project_id_for_ci_commits.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class MigrateProjectIdForCiCommits < ActiveRecord::Migration[4.2]
-  def up
-    subquery = 'SELECT gitlab_id FROM ci_projects WHERE ci_projects.id = ci_commits.project_id'
-    execute("UPDATE ci_commits SET gl_project_id=(#{subquery}) WHERE gl_project_id IS NULL")
-  end
-end
diff --git a/db/migrate/20150930001110_merge_request_error_field.rb b/db/migrate/20150930001110_merge_request_error_field.rb
deleted file mode 100644
index 30f012b0a92..00000000000
--- a/db/migrate/20150930001110_merge_request_error_field.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class MergeRequestErrorField < ActiveRecord::Migration[4.2]
-  def up
-    add_column :merge_requests, :merge_error, :string
-  end
-end
diff --git a/db/migrate/20150930095736_add_null_to_name_for_ci_projects.rb b/db/migrate/20150930095736_add_null_to_name_for_ci_projects.rb
deleted file mode 100644
index 181f9f059ac..00000000000
--- a/db/migrate/20150930095736_add_null_to_name_for_ci_projects.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddNullToNameForCiProjects < ActiveRecord::Migration[4.2]
-  def up
-    change_column_null :ci_projects, :name, true
-  end
-
-  def down
-    change_column_null :ci_projects, :name, false
-  end
-end
diff --git a/db/migrate/20150930110012_add_group_share_lock.rb b/db/migrate/20150930110012_add_group_share_lock.rb
deleted file mode 100644
index 62755765457..00000000000
--- a/db/migrate/20150930110012_add_group_share_lock.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddGroupShareLock < ActiveRecord::Migration[4.2]
-  def change
-    add_column :namespaces, :share_with_group_lock, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20151002112914_add_stage_idx_to_builds.rb b/db/migrate/20151002112914_add_stage_idx_to_builds.rb
deleted file mode 100644
index f73df9dc284..00000000000
--- a/db/migrate/20151002112914_add_stage_idx_to_builds.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddStageIdxToBuilds < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :stage_idx, :integer
-  end
-end
diff --git a/db/migrate/20151002121400_add_index_for_builds.rb b/db/migrate/20151002121400_add_index_for_builds.rb
deleted file mode 100644
index 5e6f80a1d3d..00000000000
--- a/db/migrate/20151002121400_add_index_for_builds.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddIndexForBuilds < ActiveRecord::Migration[4.2]
-  def up
-    add_index :ci_builds, [:commit_id, :stage_idx, :created_at]
-  end
-end
diff --git a/db/migrate/20151002122929_add_ref_and_tag_to_builds.rb b/db/migrate/20151002122929_add_ref_and_tag_to_builds.rb
deleted file mode 100644
index ea41921b6ee..00000000000
--- a/db/migrate/20151002122929_add_ref_and_tag_to_builds.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class AddRefAndTagToBuilds < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :tag, :boolean
-    add_column :ci_builds, :ref, :string
-  end
-end
diff --git a/db/migrate/20151002122943_migrate_ref_and_tag_to_build.rb b/db/migrate/20151002122943_migrate_ref_and_tag_to_build.rb
deleted file mode 100644
index b4038e6fa83..00000000000
--- a/db/migrate/20151002122943_migrate_ref_and_tag_to_build.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class MigrateRefAndTagToBuild < ActiveRecord::Migration[4.2]
-  def change
-    execute('UPDATE ci_builds SET ref=(SELECT ref FROM ci_commits WHERE ci_commits.id = ci_builds.commit_id) WHERE ref IS NULL')
-    execute('UPDATE ci_builds SET tag=(SELECT tag FROM ci_commits WHERE ci_commits.id = ci_builds.commit_id) WHERE tag IS NULL')
-  end
-end
diff --git a/db/migrate/20151005075649_add_user_id_to_build.rb b/db/migrate/20151005075649_add_user_id_to_build.rb
deleted file mode 100644
index 45372bf7cba..00000000000
--- a/db/migrate/20151005075649_add_user_id_to_build.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddUserIdToBuild < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :user_id, :integer
-  end
-end
diff --git a/db/migrate/20151005150751_add_layout_option_for_users.rb b/db/migrate/20151005150751_add_layout_option_for_users.rb
deleted file mode 100644
index 66cba21320a..00000000000
--- a/db/migrate/20151005150751_add_layout_option_for_users.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddLayoutOptionForUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :layout, :integer, default: 0
-  end
-end
\ No newline at end of file
diff --git a/db/migrate/20151005162154_remove_ci_enabled_from_application_settings.rb b/db/migrate/20151005162154_remove_ci_enabled_from_application_settings.rb
deleted file mode 100644
index a8e6e54062a..00000000000
--- a/db/migrate/20151005162154_remove_ci_enabled_from_application_settings.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class RemoveCiEnabledFromApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :application_settings, :ci_enabled, :boolean, null: false, default: true
-  end
-end
diff --git a/db/migrate/20151007120511_namespaces_projects_path_lower_indexes.rb b/db/migrate/20151007120511_namespaces_projects_path_lower_indexes.rb
deleted file mode 100644
index d6c21bf8639..00000000000
--- a/db/migrate/20151007120511_namespaces_projects_path_lower_indexes.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable all
-class NamespacesProjectsPathLowerIndexes < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    execute 'CREATE INDEX CONCURRENTLY index_on_namespaces_lower_path ON namespaces (LOWER(path));'
-    execute 'CREATE INDEX CONCURRENTLY index_on_projects_lower_path ON projects (LOWER(path));'
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    remove_index :namespaces, name: :index_on_namespaces_lower_path
-    remove_index :projects, name: :index_on_projects_lower_path
-  end
-end
diff --git a/db/migrate/20151008110232_add_users_lower_username_email_indexes.rb b/db/migrate/20151008110232_add_users_lower_username_email_indexes.rb
deleted file mode 100644
index 2ba1a6146e2..00000000000
--- a/db/migrate/20151008110232_add_users_lower_username_email_indexes.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable all
-class AddUsersLowerUsernameEmailIndexes < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    execute 'CREATE INDEX CONCURRENTLY index_on_users_lower_username ON users (LOWER(username));'
-    execute 'CREATE INDEX CONCURRENTLY index_on_users_lower_email ON users (LOWER(email));'
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    remove_index :users, :index_on_users_lower_username
-    remove_index :users, :index_on_users_lower_email
-  end
-end
diff --git a/db/migrate/20151008123042_add_type_and_description_to_builds.rb b/db/migrate/20151008123042_add_type_and_description_to_builds.rb
deleted file mode 100644
index 309655cf195..00000000000
--- a/db/migrate/20151008123042_add_type_and_description_to_builds.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddTypeAndDescriptionToBuilds < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :type, :string
-    add_column :ci_builds, :target_url, :string
-    add_column :ci_builds, :description, :string
-    add_index :ci_builds, [:commit_id, :type, :ref]
-    add_index :ci_builds, [:commit_id, :type, :name, :ref]
-  end
-end
diff --git a/db/migrate/20151008130321_migrate_name_to_description_for_builds.rb b/db/migrate/20151008130321_migrate_name_to_description_for_builds.rb
deleted file mode 100644
index f4445277a6f..00000000000
--- a/db/migrate/20151008130321_migrate_name_to_description_for_builds.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class MigrateNameToDescriptionForBuilds < ActiveRecord::Migration[4.2]
-  def change
-    execute("UPDATE ci_builds SET type='Ci::Build' WHERE type IS NULL")
-  end
-end
diff --git a/db/migrate/20151008143519_add_admin_notification_email_setting.rb b/db/migrate/20151008143519_add_admin_notification_email_setting.rb
deleted file mode 100644
index 60e0986e5a8..00000000000
--- a/db/migrate/20151008143519_add_admin_notification_email_setting.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddAdminNotificationEmailSetting < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :admin_notification_email, :string
-  end
-end
diff --git a/db/migrate/20151012173029_set_jira_service_api_url.rb b/db/migrate/20151012173029_set_jira_service_api_url.rb
deleted file mode 100644
index 91cc6bbc783..00000000000
--- a/db/migrate/20151012173029_set_jira_service_api_url.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-# rubocop:disable all
-class SetJiraServiceApiUrl < ActiveRecord::Migration[4.2]
-  # This migration can be performed online without errors, but some Jira API calls may be missed
-  # when doing so because api_url is not yet available.
-
-  def build_api_url_from_project_url(project_url, api_version)
-    # this is the exact logic previously used to build the Jira API URL from project_url
-    server = URI(project_url)
-    default_ports = [80, 443].include?(server.port)
-    server_url = "#{server.scheme}://#{server.host}"
-    server_url.concat(":#{server.port}") unless default_ports
-    "#{server_url}/rest/api/#{api_version}"
-  end
-
-  def get_api_version_from_api_url(api_url)
-    match = /\/rest\/api\/(?<api_version>\w+)$/.match(api_url)
-    match && match['api_version']
-  end
-
-  def change
-    reversible do |dir|
-      select_all("SELECT id, properties FROM services WHERE services.type IN ('JiraService')").each do |jira_service|
-        id = jira_service["id"]
-        properties = JSON.parse(jira_service["properties"])
-        properties_was = properties.clone
-
-        dir.up do
-          # remove api_version and set api_url
-          if properties['api_version'].present? && properties['project_url'].present?
-            begin
-              properties['api_url'] ||= build_api_url_from_project_url(properties['project_url'], properties['api_version'])
-            rescue
-              # looks like project_url was not a valid URL. Do nothing.
-            end
-          end
-          properties.delete('api_version') if properties.include?('api_version')
-        end
-
-        dir.down do
-          # remove api_url and set api_version (default to '2')
-          properties['api_version'] ||= get_api_version_from_api_url(properties['api_url']) || '2'
-          properties.delete('api_url') if properties.include?('api_url')
-        end
-
-        if properties != properties_was
-          execute("UPDATE services SET properties = '#{quote_string(properties.to_json)}' WHERE id = #{id}")
-        end
-      end
-    end
-  end
-end
diff --git a/db/migrate/20151013092124_add_artifacts_file_to_builds.rb b/db/migrate/20151013092124_add_artifacts_file_to_builds.rb
deleted file mode 100644
index 3936386a2c0..00000000000
--- a/db/migrate/20151013092124_add_artifacts_file_to_builds.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddArtifactsFileToBuilds < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :artifacts_file, :text
-  end
-end
diff --git a/db/migrate/20151016131433_add_ci_projects_gl_project_id_index.rb b/db/migrate/20151016131433_add_ci_projects_gl_project_id_index.rb
deleted file mode 100644
index a9290fef11a..00000000000
--- a/db/migrate/20151016131433_add_ci_projects_gl_project_id_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddCiProjectsGlProjectIdIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :ci_commits, :gl_project_id
-  end
-end
diff --git a/db/migrate/20151016195451_add_ci_builds_and_projects_indexes.rb b/db/migrate/20151016195451_add_ci_builds_and_projects_indexes.rb
deleted file mode 100644
index c8a79f25ae5..00000000000
--- a/db/migrate/20151016195451_add_ci_builds_and_projects_indexes.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddCiBuildsAndProjectsIndexes < ActiveRecord::Migration[4.2]
-  def change
-    add_index :ci_projects, :gitlab_id
-    add_index :ci_projects, :shared_runners_enabled
-
-    add_index :ci_builds, :type
-    add_index :ci_builds, :status
-  end
-end
diff --git a/db/migrate/20151016195706_add_notes_line_code_index.rb b/db/migrate/20151016195706_add_notes_line_code_index.rb
deleted file mode 100644
index 0a3ad103009..00000000000
--- a/db/migrate/20151016195706_add_notes_line_code_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddNotesLineCodeIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :notes, :line_code
-  end
-end
diff --git a/db/migrate/20151019111551_fix_build_tags.rb b/db/migrate/20151019111551_fix_build_tags.rb
deleted file mode 100644
index 3c64388314d..00000000000
--- a/db/migrate/20151019111551_fix_build_tags.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class FixBuildTags < ActiveRecord::Migration[4.2]
-  def up
-    execute("UPDATE taggings SET taggable_type='CommitStatus' WHERE taggable_type='Ci::Build'")
-  end
-
-  def down
-    execute("UPDATE taggings SET taggable_type='Ci::Build' WHERE taggable_type='CommitStatus'")
-  end
-end
diff --git a/db/migrate/20151019111703_fail_build_without_names.rb b/db/migrate/20151019111703_fail_build_without_names.rb
deleted file mode 100644
index 2dc9ffa32b9..00000000000
--- a/db/migrate/20151019111703_fail_build_without_names.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class FailBuildWithoutNames < ActiveRecord::Migration[4.2]
-  def up
-    execute("UPDATE ci_builds SET status='failed' WHERE name IS NULL AND status='pending'")
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20151020145526_add_services_template_index.rb b/db/migrate/20151020145526_add_services_template_index.rb
deleted file mode 100644
index 24c373855e2..00000000000
--- a/db/migrate/20151020145526_add_services_template_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddServicesTemplateIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :services, :template
-  end
-end
diff --git a/db/migrate/20151020173516_ci_limits_to_mysql.rb b/db/migrate/20151020173516_ci_limits_to_mysql.rb
deleted file mode 100644
index 573922b851b..00000000000
--- a/db/migrate/20151020173516_ci_limits_to_mysql.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class CiLimitsToMysql < ActiveRecord::Migration[4.2]
-  def change
-    return unless ActiveRecord::Base.configurations[Rails.env]['adapter'] =~ /^mysql/
-
-    # CI
-    change_column :ci_builds, :trace, :text, limit: 1073741823
-    change_column :ci_commits, :push_data, :text, limit: 16777215
-  end
-end
diff --git a/db/migrate/20151020173906_add_ci_builds_index_for_status.rb b/db/migrate/20151020173906_add_ci_builds_index_for_status.rb
deleted file mode 100644
index 231fc4f2a17..00000000000
--- a/db/migrate/20151020173906_add_ci_builds_index_for_status.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddCiBuildsIndexForStatus < ActiveRecord::Migration[4.2]
-  def change
-    add_index :ci_builds, [:commit_id, :status, :type]
-  end
-end
diff --git a/db/migrate/20151023112551_fail_build_with_empty_name.rb b/db/migrate/20151023112551_fail_build_with_empty_name.rb
deleted file mode 100644
index 28f531463bc..00000000000
--- a/db/migrate/20151023112551_fail_build_with_empty_name.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class FailBuildWithEmptyName < ActiveRecord::Migration[4.2]
-  def up
-    execute("UPDATE ci_builds SET status='failed' WHERE (name IS NULL OR name='') AND status='pending'")
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20151023144219_remove_satellites.rb b/db/migrate/20151023144219_remove_satellites.rb
deleted file mode 100644
index 2d1310b0208..00000000000
--- a/db/migrate/20151023144219_remove_satellites.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-require 'fileutils'
-
-class RemoveSatellites < ActiveRecord::Migration[4.2]
-  def up
-    satellites = Gitlab.config['satellites']
-    return if satellites.nil?
-
-    satellites_path = satellites['path']
-    return if satellites_path.nil?
-
-    FileUtils.rm_rf(satellites_path)
-  end
-
-  def down
-    # Do nothing
-  end
-end
diff --git a/db/migrate/20151026182941_add_project_path_index.rb b/db/migrate/20151026182941_add_project_path_index.rb
deleted file mode 100644
index bf0444450cd..00000000000
--- a/db/migrate/20151026182941_add_project_path_index.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddProjectPathIndex < ActiveRecord::Migration[4.2]
-  def up
-    add_index :projects, :path
-  end
-
-  def down
-    remove_index :projects, :path
-  end
-end
diff --git a/db/migrate/20151028152939_add_merge_when_build_succeeds_to_merge_request.rb b/db/migrate/20151028152939_add_merge_when_build_succeeds_to_merge_request.rb
deleted file mode 100644
index 5b11a430e30..00000000000
--- a/db/migrate/20151028152939_add_merge_when_build_succeeds_to_merge_request.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable all
-class AddMergeWhenBuildSucceedsToMergeRequest < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_requests, :merge_params, :text
-    add_column :merge_requests, :merge_when_build_succeeds, :boolean, default: false, null: false
-    add_column :merge_requests, :merge_user_id, :integer
-  end
-end
diff --git a/db/migrate/20151103001141_add_public_to_group.rb b/db/migrate/20151103001141_add_public_to_group.rb
deleted file mode 100644
index a5590bc1adc..00000000000
--- a/db/migrate/20151103001141_add_public_to_group.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddPublicToGroup < ActiveRecord::Migration[4.2]
-  def change
-    add_column :namespaces, :public, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20151103133339_add_shared_runners_setting.rb b/db/migrate/20151103133339_add_shared_runners_setting.rb
deleted file mode 100644
index 6fc845d1396..00000000000
--- a/db/migrate/20151103133339_add_shared_runners_setting.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddSharedRunnersSetting < ActiveRecord::Migration[4.2]
-  def up
-    add_column :application_settings, :shared_runners_enabled, :boolean, default: true, null: false
-  end
-end
diff --git a/db/migrate/20151103134857_create_lfs_objects.rb b/db/migrate/20151103134857_create_lfs_objects.rb
deleted file mode 100644
index 2ba77e431a1..00000000000
--- a/db/migrate/20151103134857_create_lfs_objects.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable all
-class CreateLfsObjects < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :lfs_objects do |t|
-      t.string :oid, null: false, unique: true
-      t.integer :size, null: false
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20151103134958_create_lfs_objects_projects.rb b/db/migrate/20151103134958_create_lfs_objects_projects.rb
deleted file mode 100644
index 6f8488463b0..00000000000
--- a/db/migrate/20151103134958_create_lfs_objects_projects.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable all
-class CreateLfsObjectsProjects < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :lfs_objects_projects do |t|
-      t.integer :lfs_object_id, null: false
-      t.integer :project_id, null: false
-
-      t.timestamps null: true
-    end
-
-    add_index :lfs_objects_projects, :project_id
-  end
-end
diff --git a/db/migrate/20151104105513_add_file_to_lfs_objects.rb b/db/migrate/20151104105513_add_file_to_lfs_objects.rb
deleted file mode 100644
index 050b1e07503..00000000000
--- a/db/migrate/20151104105513_add_file_to_lfs_objects.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddFileToLfsObjects < ActiveRecord::Migration[4.2]
-  def change
-    add_column :lfs_objects, :file, :string
-  end
-end
diff --git a/db/migrate/20151105094515_create_releases.rb b/db/migrate/20151105094515_create_releases.rb
deleted file mode 100644
index 4b180a59486..00000000000
--- a/db/migrate/20151105094515_create_releases.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class CreateReleases < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :releases do |t|
-      t.string :tag
-      t.text :description
-      t.integer :project_id
-
-      t.timestamps null: true
-    end
-
-    add_index :releases, :project_id
-    add_index :releases, [:project_id, :tag]
-  end
-end
diff --git a/db/migrate/20151106000015_add_is_award_to_notes.rb b/db/migrate/20151106000015_add_is_award_to_notes.rb
deleted file mode 100644
index 1d866fb3213..00000000000
--- a/db/migrate/20151106000015_add_is_award_to_notes.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddIsAwardToNotes < ActiveRecord::Migration[4.2]
-  def change
-    add_column :notes, :is_award, :boolean, default: false, null: false
-    add_index :notes, :is_award
-  end
-end
diff --git a/db/migrate/20151109100728_add_max_artifacts_size_to_application_settings.rb b/db/migrate/20151109100728_add_max_artifacts_size_to_application_settings.rb
deleted file mode 100644
index 9c14cfd4656..00000000000
--- a/db/migrate/20151109100728_add_max_artifacts_size_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddMaxArtifactsSizeToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :max_artifacts_size, :integer, default: 100, null: false
-  end
-end
diff --git a/db/migrate/20151109134526_add_issues_state_index.rb b/db/migrate/20151109134526_add_issues_state_index.rb
deleted file mode 100644
index c77ca90a0d6..00000000000
--- a/db/migrate/20151109134526_add_issues_state_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddIssuesStateIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :issues, :state
-  end
-end
diff --git a/db/migrate/20151109134916_add_projects_visibility_level_index.rb b/db/migrate/20151109134916_add_projects_visibility_level_index.rb
deleted file mode 100644
index 1e945f0e56f..00000000000
--- a/db/migrate/20151109134916_add_projects_visibility_level_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddProjectsVisibilityLevelIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :projects, :visibility_level
-  end
-end
diff --git a/db/migrate/20151110125604_add_import_error_to_project.rb b/db/migrate/20151110125604_add_import_error_to_project.rb
deleted file mode 100644
index 48a15ad0737..00000000000
--- a/db/migrate/20151110125604_add_import_error_to_project.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddImportErrorToProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :import_error, :text
-  end
-end
diff --git a/db/migrate/20151114113410_add_index_for_lfs_oid_and_size.rb b/db/migrate/20151114113410_add_index_for_lfs_oid_and_size.rb
deleted file mode 100644
index f2788117cc2..00000000000
--- a/db/migrate/20151114113410_add_index_for_lfs_oid_and_size.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddIndexForLfsOidAndSize < ActiveRecord::Migration[4.2]
-  def change
-    add_index :lfs_objects, :oid
-    add_index :lfs_objects, [:oid, :size]
-  end
-end
diff --git a/db/migrate/20151116144118_add_unique_for_lfs_oid_index.rb b/db/migrate/20151116144118_add_unique_for_lfs_oid_index.rb
deleted file mode 100644
index 3bfbae67119..00000000000
--- a/db/migrate/20151116144118_add_unique_for_lfs_oid_index.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable all
-class AddUniqueForLfsOidIndex < ActiveRecord::Migration[4.2]
-  def change
-    remove_index :lfs_objects, :oid
-    remove_index :lfs_objects, [:oid, :size]
-    add_index :lfs_objects, :oid, unique: true
-  end
-end
diff --git a/db/migrate/20151118162244_add_projects_public_index.rb b/db/migrate/20151118162244_add_projects_public_index.rb
deleted file mode 100644
index 3a525c69ad0..00000000000
--- a/db/migrate/20151118162244_add_projects_public_index.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddProjectsPublicIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :namespaces, :public
-  end
-end
diff --git a/db/migrate/20151201203948_raise_hook_url_limit.rb b/db/migrate/20151201203948_raise_hook_url_limit.rb
deleted file mode 100644
index c1a4974b8c9..00000000000
--- a/db/migrate/20151201203948_raise_hook_url_limit.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class RaiseHookUrlLimit < ActiveRecord::Migration[4.2]
-  def change
-    change_column :web_hooks, :url, :string, limit: 2000
-  end
-end
diff --git a/db/migrate/20151203162133_add_hide_project_limit_to_users.rb b/db/migrate/20151203162133_add_hide_project_limit_to_users.rb
deleted file mode 100644
index 1b96a0dc550..00000000000
--- a/db/migrate/20151203162133_add_hide_project_limit_to_users.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddHideProjectLimitToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :hide_project_limit, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20151203162134_add_build_events_to_services.rb b/db/migrate/20151203162134_add_build_events_to_services.rb
deleted file mode 100644
index c49604f8b61..00000000000
--- a/db/migrate/20151203162134_add_build_events_to_services.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddBuildEventsToServices < ActiveRecord::Migration[4.2]
-  def change
-    add_column :services, :build_events, :boolean, default: false, null: false
-    add_column :web_hooks, :build_events, :boolean, default: false, null: false
-  end
-end
diff --git a/db/migrate/20151209144329_migrate_ci_web_hooks.rb b/db/migrate/20151209144329_migrate_ci_web_hooks.rb
deleted file mode 100644
index 7562735cb1e..00000000000
--- a/db/migrate/20151209144329_migrate_ci_web_hooks.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class MigrateCiWebHooks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def up
-    execute(
-      'INSERT INTO web_hooks (url, project_id, type, created_at, updated_at, push_events, issues_events, merge_requests_events, tag_push_events, note_events, build_events) ' \
-      "SELECT ci_web_hooks.url, projects.id, 'ProjectHook', ci_web_hooks.created_at, ci_web_hooks.updated_at, " \
-      "#{false_value}, #{false_value}, #{false_value}, #{false_value}, #{false_value}, #{true_value} FROM ci_web_hooks " \
-      'JOIN ci_projects ON ci_web_hooks.project_id = ci_projects.id ' \
-      'JOIN projects ON ci_projects.gitlab_id = projects.id'
-    )
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20151209145909_migrate_ci_emails.rb b/db/migrate/20151209145909_migrate_ci_emails.rb
deleted file mode 100644
index a1f51c55a55..00000000000
--- a/db/migrate/20151209145909_migrate_ci_emails.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-class MigrateCiEmails < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def up
-    # This inserts a new service: BuildsEmailService
-    # It "manually" constructs the properties (JSON-encoded)
-    # Migrating all ci_projects e-mail related columns
-    execute(
-      'INSERT INTO services (project_id, type, created_at, updated_at, active, push_events, issues_events, merge_requests_events, tag_push_events, note_events, build_events, properties) ' \
-      "SELECT projects.id, 'BuildsEmailService', ci_services.created_at, ci_services.updated_at, " \
-      "#{true_value}, #{false_value}, #{false_value}, #{false_value}, #{false_value}, #{false_value}, #{true_value}, " \
-      "CONCAT('{\"notify_only_broken_builds\":\"', #{convert_bool('ci_projects.email_only_broken_builds')}, " \
-      "'\",\"add_pusher\":\"', #{convert_bool('ci_projects.email_add_pusher')}, " \
-      "'\",\"recipients\":\"', #{escape_text('ci_projects.email_recipients')}, " \
-      "'\"}') " \
-      'FROM ci_services ' \
-      'JOIN ci_projects ON ci_services.project_id = ci_projects.id ' \
-      'JOIN projects ON ci_projects.gitlab_id = projects.id ' \
-      "WHERE ci_services.type = 'Ci::MailService' AND ci_services.active"
-    )
-  end
-
-  def down
-  end
-
-  # This function escapes double-quotes and slash
-  def escape_text(name)
-    if Gitlab::Database.postgresql?
-      "REPLACE(REPLACE(#{name}, '\\', '\\\\'), '\"', '\\\"')"
-    else
-      "REPLACE(REPLACE(#{name}, '\\\\', '\\\\\\\\'), '\\\"', '\\\\\\\"')"
-    end
-  end
-
-  # This function returns 0 or 1 for column
-  def convert_bool(name)
-    if Gitlab::Database.postgresql?
-      # PostgreSQL uses BOOLEAN type
-      "CASE WHEN #{name} IS TRUE THEN '1' ELSE '0' END"
-    else
-      # MySQL uses TINYINT
-      "#{name}"
-    end
-  end
-end
diff --git a/db/migrate/20151210030143_add_unlock_token_to_user.rb b/db/migrate/20151210030143_add_unlock_token_to_user.rb
deleted file mode 100644
index 28b736adfb5..00000000000
--- a/db/migrate/20151210030143_add_unlock_token_to_user.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddUnlockTokenToUser < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :unlock_token, :string
-  end
-end
diff --git a/db/migrate/20151210072243_add_runners_registration_token_to_application_settings.rb b/db/migrate/20151210072243_add_runners_registration_token_to_application_settings.rb
deleted file mode 100644
index 5da33149b59..00000000000
--- a/db/migrate/20151210072243_add_runners_registration_token_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddRunnersRegistrationTokenToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :runners_registration_token, :string
-  end
-end
diff --git a/db/migrate/20151210125232_migrate_ci_slack_service.rb b/db/migrate/20151210125232_migrate_ci_slack_service.rb
deleted file mode 100644
index 72c90f92377..00000000000
--- a/db/migrate/20151210125232_migrate_ci_slack_service.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-class MigrateCiSlackService < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def up
-    properties_query = 'SELECT properties FROM ci_services ' \
-      'JOIN ci_projects ON ci_services.project_id=ci_projects.id ' \
-      "WHERE ci_projects.gitlab_id=services.project_id AND ci_services.type='Ci::SlackService' AND ci_services.active " \
-      'LIMIT 1'
-
-    active_query = 'SELECT 1 FROM ci_services ' \
-      'JOIN ci_projects ON ci_services.project_id=ci_projects.id ' \
-      "WHERE ci_projects.gitlab_id=services.project_id AND ci_services.type='Ci::SlackService' AND ci_services.active " \
-      'LIMIT 1'
-
-    # We update the service since services are always generated for project, even if they are inactive
-    # Activate service and migrate properties if currently the service is not active
-    execute(
-      "UPDATE services SET properties=(#{properties_query}), active=#{true_value}, " \
-      "push_events=#{false_value}, issues_events=#{false_value}, merge_requests_events=#{false_value}, " \
-      "tag_push_events=#{false_value}, note_events=#{false_value}, build_events=#{true_value} " \
-      "WHERE NOT services.active AND services.type='SlackService' AND (#{active_query}) IS NOT NULL"
-    )
-
-    # Tick only build_events if the service is already active
-    execute(
-      "UPDATE services SET build_events=#{true_value} " \
-      "WHERE services.active AND services.type='SlackService' AND (#{active_query}) IS NOT NULL"
-    )
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20151210125927_migrate_ci_hip_chat_service.rb b/db/migrate/20151210125927_migrate_ci_hip_chat_service.rb
deleted file mode 100644
index 5ec0798c38f..00000000000
--- a/db/migrate/20151210125927_migrate_ci_hip_chat_service.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-class MigrateCiHipChatService < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def up
-    # From properties strip `hipchat_` key
-    properties_query = "SELECT REPLACE(properties, '\"hipchat_', '\"') FROM ci_services " \
-      'JOIN ci_projects ON ci_services.project_id=ci_projects.id ' \
-      "WHERE ci_projects.gitlab_id=services.project_id AND ci_services.type='Ci::HipChatService' AND ci_services.active " \
-      'LIMIT 1'
-
-    active_query = 'SELECT 1 FROM ci_services ' \
-      'JOIN ci_projects ON ci_services.project_id=ci_projects.id ' \
-      "WHERE ci_projects.gitlab_id=services.project_id AND ci_services.type='Ci::HipChatService' AND ci_services.active " \
-      'LIMIT 1'
-
-    # We update the service since services are always generated for project, even if they are inactive
-    # Activate service and migrate properties if currently the service is not active
-    execute(
-      "UPDATE services SET properties=(#{properties_query}), active=#{true_value}, " \
-      "push_events=#{false_value}, issues_events=#{false_value}, merge_requests_events=#{false_value}, " \
-      "tag_push_events=#{false_value}, note_events=#{false_value}, build_events=#{true_value} " \
-      "WHERE NOT services.active AND services.type='HipchatService' AND (#{active_query}) IS NOT NULL"
-    )
-
-    # Tick only build_events if the service is already active
-    execute(
-      "UPDATE services SET build_events=#{true_value} " \
-      "WHERE services.active AND services.type='HipchatService' AND (#{active_query}) IS NOT NULL"
-    )
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20151210125928_add_ci_to_project.rb b/db/migrate/20151210125928_add_ci_to_project.rb
deleted file mode 100644
index 182f1e17b9a..00000000000
--- a/db/migrate/20151210125928_add_ci_to_project.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# rubocop:disable all
-class AddCiToProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :ci_id, :integer
-    add_column :projects, :builds_enabled, :boolean, default: true, null: false
-    add_column :projects, :shared_runners_enabled, :boolean, default: true, null: false
-    add_column :projects, :runners_token, :string
-    add_column :projects, :build_coverage_regex, :string
-    add_column :projects, :build_allow_git_fetch, :boolean, default: true, null: false
-    add_column :projects, :build_timeout, :integer, default: 3600, null: false
-  end
-end
diff --git a/db/migrate/20151210125929_add_project_id_to_ci.rb b/db/migrate/20151210125929_add_project_id_to_ci.rb
deleted file mode 100644
index f5f2c353f4a..00000000000
--- a/db/migrate/20151210125929_add_project_id_to_ci.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddProjectIdToCi < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :gl_project_id, :integer
-    add_column :ci_runner_projects, :gl_project_id, :integer
-    add_column :ci_triggers, :gl_project_id, :integer
-    add_column :ci_variables, :gl_project_id, :integer
-  end
-end
diff --git a/db/migrate/20151210125930_migrate_ci_to_project.rb b/db/migrate/20151210125930_migrate_ci_to_project.rb
deleted file mode 100644
index f7573ad1a8d..00000000000
--- a/db/migrate/20151210125930_migrate_ci_to_project.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-class MigrateCiToProject < ActiveRecord::Migration[4.2]
-  def up
-    migrate_project_id_for_table('ci_runner_projects')
-    migrate_project_id_for_table('ci_triggers')
-    migrate_project_id_for_table('ci_variables')
-    migrate_project_id_for_builds
-
-    migrate_project_column('id', 'ci_id')
-    migrate_project_column('shared_runners_enabled', 'shared_runners_enabled')
-    migrate_project_column('token', 'runners_token')
-    migrate_project_column('coverage_regex', 'build_coverage_regex')
-    migrate_project_column('allow_git_fetch', 'build_allow_git_fetch')
-    migrate_project_column('timeout', 'build_timeout')
-    migrate_ci_service
-  end
-
-  def down
-    # We can't reverse the data
-  end
-
-  def migrate_project_id_for_table(table)
-    subquery = "SELECT gitlab_id FROM ci_projects WHERE ci_projects.id = #{table}.project_id"
-    execute("UPDATE #{table} SET gl_project_id=(#{subquery}) WHERE gl_project_id IS NULL")
-  end
-
-  def migrate_project_id_for_builds
-    subquery = 'SELECT gl_project_id FROM ci_commits WHERE ci_commits.id = ci_builds.commit_id'
-    execute("UPDATE ci_builds SET gl_project_id=(#{subquery}) WHERE gl_project_id IS NULL")
-  end
-
-  def migrate_project_column(column, new_column = nil)
-    new_column ||= column
-    subquery = "SELECT ci_projects.#{column} FROM ci_projects WHERE projects.id = ci_projects.gitlab_id " \
-      'ORDER BY ci_projects.updated_at DESC LIMIT 1'
-    execute("UPDATE projects SET #{new_column}=(#{subquery}) WHERE (#{subquery}) IS NOT NULL")
-  end
-
-  def migrate_ci_service
-    subquery = "SELECT active FROM services WHERE projects.id = services.project_id AND type='GitlabCiService' LIMIT 1"
-    execute("UPDATE projects SET builds_enabled=(#{subquery}) WHERE (#{subquery}) IS NOT NULL")
-  end
-end
diff --git a/db/migrate/20151210125931_add_index_to_ci_tables.rb b/db/migrate/20151210125931_add_index_to_ci_tables.rb
deleted file mode 100644
index 2cbc5b50538..00000000000
--- a/db/migrate/20151210125931_add_index_to_ci_tables.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable all
-class AddIndexToCiTables < ActiveRecord::Migration[4.2]
-  def change
-    add_index :ci_builds, :gl_project_id
-    add_index :ci_runner_projects, :gl_project_id
-    add_index :ci_triggers, :gl_project_id
-    add_index :ci_variables, :gl_project_id
-    add_index :projects, :runners_token
-    add_index :projects, :builds_enabled
-    add_index :projects, [:builds_enabled, :shared_runners_enabled]
-    add_index :projects, [:ci_id]
-  end
-end
diff --git a/db/migrate/20151210125932_drop_null_for_ci_tables.rb b/db/migrate/20151210125932_drop_null_for_ci_tables.rb
deleted file mode 100644
index b48fef4b749..00000000000
--- a/db/migrate/20151210125932_drop_null_for_ci_tables.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class DropNullForCiTables < ActiveRecord::Migration[4.2]
-  def change
-    remove_index :ci_variables, :project_id
-    remove_index :ci_runner_projects, :project_id
-    change_column_null :ci_triggers, :project_id, true
-    change_column_null :ci_variables, :project_id, true
-    change_column_null :ci_runner_projects, :project_id, true
-  end
-end
diff --git a/db/migrate/20151215132013_add_pages_size_to_application_settings.rb b/db/migrate/20151215132013_add_pages_size_to_application_settings.rb
deleted file mode 100644
index 7190d476dc7..00000000000
--- a/db/migrate/20151215132013_add_pages_size_to_application_settings.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class AddPagesSizeToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default :application_settings, :max_pages_size, :integer, default: 100, allow_null: false
-  end
-
-  def down
-    remove_column(:application_settings, :max_pages_size)
-  end
-end
diff --git a/db/migrate/20151218154042_add_tfa_to_application_settings.rb b/db/migrate/20151218154042_add_tfa_to_application_settings.rb
deleted file mode 100644
index a981fe2720f..00000000000
--- a/db/migrate/20151218154042_add_tfa_to_application_settings.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddTfaToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    change_table :application_settings do |t|
-      t.boolean :require_two_factor_authentication, default: false
-      t.integer :two_factor_grace_period, default: 48
-    end
-  end
-end
diff --git a/db/migrate/20151221234414_add_tfa_additional_fields.rb b/db/migrate/20151221234414_add_tfa_additional_fields.rb
deleted file mode 100644
index fed734f77f4..00000000000
--- a/db/migrate/20151221234414_add_tfa_additional_fields.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddTfaAdditionalFields < ActiveRecord::Migration[4.2]
-  def change
-    change_table :users do |t|
-      t.datetime :otp_grace_period_started_at, null: true
-    end
-  end
-end
diff --git a/db/migrate/20151224123230_rename_emojis.rb b/db/migrate/20151224123230_rename_emojis.rb
deleted file mode 100644
index f1e4b1fe181..00000000000
--- a/db/migrate/20151224123230_rename_emojis.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# Migration type: online without errors (works on previous version and new one)
-class RenameEmojis < ActiveRecord::Migration[4.2]
-  def up
-    # Renames aliases to main names
-    execute("UPDATE notes SET note ='thumbsup' WHERE is_award = true AND note = '+1'")
-    execute("UPDATE notes SET note ='thumbsdown' WHERE is_award = true AND note = '-1'")
-    execute("UPDATE notes SET note ='poop' WHERE is_award = true AND note = 'shit'")
-  end
-
-  def down
-    execute("UPDATE notes SET note ='+1' WHERE is_award = true AND note = 'thumbsup'")
-    execute("UPDATE notes SET note ='-1' WHERE is_award = true AND note = 'thumbsdown'")
-    execute("UPDATE notes SET note ='shit' WHERE is_award = true AND note = 'poop'")
-  end
-end
diff --git a/db/migrate/20151228111122_remove_public_from_namespace.rb b/db/migrate/20151228111122_remove_public_from_namespace.rb
deleted file mode 100644
index ad922e3fc58..00000000000
--- a/db/migrate/20151228111122_remove_public_from_namespace.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-# Migration type: online
-class RemovePublicFromNamespace < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :namespaces, :public, :boolean
-  end
-end
diff --git a/db/migrate/20151228150906_influxdb_settings.rb b/db/migrate/20151228150906_influxdb_settings.rb
deleted file mode 100644
index 8266e3c5044..00000000000
--- a/db/migrate/20151228150906_influxdb_settings.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable all
-class InfluxdbSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :metrics_enabled, :boolean, default: false
-
-    add_column :application_settings, :metrics_host, :string,
-      default: 'localhost'
-
-    add_column :application_settings, :metrics_database, :string,
-      default: 'gitlab'
-
-    add_column :application_settings, :metrics_username, :string
-    add_column :application_settings, :metrics_password, :string
-    add_column :application_settings, :metrics_pool_size, :integer, default: 16
-    add_column :application_settings, :metrics_timeout, :integer, default: 10
-    add_column :application_settings, :metrics_method_call_threshold,
-      :integer, default: 10
-  end
-end
diff --git a/db/migrate/20151228175719_add_recaptcha_to_application_settings.rb b/db/migrate/20151228175719_add_recaptcha_to_application_settings.rb
deleted file mode 100644
index 523f2cae092..00000000000
--- a/db/migrate/20151228175719_add_recaptcha_to_application_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRecaptchaToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    change_table :application_settings do |t|
-      t.boolean :recaptcha_enabled, default: false
-      t.string :recaptcha_site_key
-      t.string :recaptcha_private_key
-    end
-  end
-end
diff --git a/db/migrate/20151229102248_influxdb_udp_port_setting.rb b/db/migrate/20151229102248_influxdb_udp_port_setting.rb
deleted file mode 100644
index da37e3bc148..00000000000
--- a/db/migrate/20151229102248_influxdb_udp_port_setting.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class InfluxdbUdpPortSetting < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :metrics_port, :integer, default: 8089
-  end
-end
diff --git a/db/migrate/20151229112614_influxdb_remote_database_setting.rb b/db/migrate/20151229112614_influxdb_remote_database_setting.rb
deleted file mode 100644
index 5fdf4c6d4cb..00000000000
--- a/db/migrate/20151229112614_influxdb_remote_database_setting.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class InfluxdbRemoteDatabaseSetting < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :application_settings, :metrics_database
-  end
-end
diff --git a/db/migrate/20151230132518_add_artifacts_metadata_to_ci_build.rb b/db/migrate/20151230132518_add_artifacts_metadata_to_ci_build.rb
deleted file mode 100644
index 61a3d6486f3..00000000000
--- a/db/migrate/20151230132518_add_artifacts_metadata_to_ci_build.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddArtifactsMetadataToCiBuild < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :artifacts_metadata, :text
-  end
-end
diff --git a/db/migrate/20151231152326_add_akismet_to_application_settings.rb b/db/migrate/20151231152326_add_akismet_to_application_settings.rb
deleted file mode 100644
index ef51ea03a5b..00000000000
--- a/db/migrate/20151231152326_add_akismet_to_application_settings.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddAkismetToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    change_table :application_settings do |t|
-      t.boolean :akismet_enabled, default: false
-      t.string :akismet_api_key
-    end
-  end
-end
diff --git a/db/migrate/20151231202530_remove_alert_type_from_broadcast_messages.rb b/db/migrate/20151231202530_remove_alert_type_from_broadcast_messages.rb
deleted file mode 100644
index 2d8b44840f0..00000000000
--- a/db/migrate/20151231202530_remove_alert_type_from_broadcast_messages.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class RemoveAlertTypeFromBroadcastMessages < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :broadcast_messages, :alert_type, :integer
-  end
-end
diff --git a/db/migrate/20160106162223_add_index_milestones_title.rb b/db/migrate/20160106162223_add_index_milestones_title.rb
deleted file mode 100644
index d42bddefe64..00000000000
--- a/db/migrate/20160106162223_add_index_milestones_title.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddIndexMilestonesTitle < ActiveRecord::Migration[4.2]
-  def change
-    add_index :milestones, :title
-  end
-end
diff --git a/db/migrate/20160106164438_remove_influxdb_credentials.rb b/db/migrate/20160106164438_remove_influxdb_credentials.rb
deleted file mode 100644
index 569d5a0cf36..00000000000
--- a/db/migrate/20160106164438_remove_influxdb_credentials.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class RemoveInfluxdbCredentials < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :application_settings, :metrics_username, :string
-    remove_column :application_settings, :metrics_password, :string
-  end
-end
diff --git a/db/migrate/20160109054846_create_spam_logs.rb b/db/migrate/20160109054846_create_spam_logs.rb
deleted file mode 100644
index dc97d03f7ff..00000000000
--- a/db/migrate/20160109054846_create_spam_logs.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class CreateSpamLogs < ActiveRecord::Migration[4.2]
-  def change
-    create_table :spam_logs do |t|
-      t.integer :user_id
-      t.string :source_ip
-      t.string :user_agent
-      t.boolean :via_api
-      t.integer :project_id
-      t.string :noteable_type
-      t.string :title
-      t.text :description
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160113111034_add_metrics_sample_interval.rb b/db/migrate/20160113111034_add_metrics_sample_interval.rb
deleted file mode 100644
index 9c3377571aa..00000000000
--- a/db/migrate/20160113111034_add_metrics_sample_interval.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class AddMetricsSampleInterval < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :metrics_sample_interval, :integer,
-      default: 15
-  end
-end
diff --git a/db/migrate/20160118155830_add_sentry_to_application_settings.rb b/db/migrate/20160118155830_add_sentry_to_application_settings.rb
deleted file mode 100644
index 20f3925b964..00000000000
--- a/db/migrate/20160118155830_add_sentry_to_application_settings.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddSentryToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    change_table :application_settings do |t|
-      t.boolean :sentry_enabled, default: false
-      t.string :sentry_dsn
-    end
-  end
-end
diff --git a/db/migrate/20160118232755_add_ip_blocking_settings_to_application_settings.rb b/db/migrate/20160118232755_add_ip_blocking_settings_to_application_settings.rb
deleted file mode 100644
index 809a6cceef5..00000000000
--- a/db/migrate/20160118232755_add_ip_blocking_settings_to_application_settings.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddIpBlockingSettingsToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :ip_blocking_enabled, :boolean, default: false
-    add_column :application_settings, :dnsbl_servers_list, :text
-  end
-end
diff --git a/db/migrate/20160119111158_add_services_category.rb b/db/migrate/20160119111158_add_services_category.rb
deleted file mode 100644
index 979a48584a9..00000000000
--- a/db/migrate/20160119111158_add_services_category.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# rubocop:disable all
-class AddServicesCategory < ActiveRecord::Migration[4.2]
-  def up
-    add_column :services, :category, :string, default: 'common', null: false
-
-    category = quote_column_name('category')
-    type     = quote_column_name('type')
-
-    execute <<-EOF
-UPDATE services
-SET #{category} = 'issue_tracker'
-WHERE #{type} IN (
-  'CustomIssueTrackerService',
-  'GitlabIssueTrackerService',
-  'IssueTrackerService',
-  'JiraService',
-  'RedmineService'
-);
-EOF
-
-    execute <<-EOF
-UPDATE services
-SET #{category} = 'ci'
-WHERE #{type} IN (
-  'BambooService',
-  'BuildkiteService',
-  'CiService',
-  'DroneCiService',
-  'GitlabCiService',
-  'TeamcityService'
-);
-    EOF
-
-    add_index :services, :category
-  end
-
-  def down
-    remove_column :services, :category
-  end
-end
diff --git a/db/migrate/20160119112418_add_services_default.rb b/db/migrate/20160119112418_add_services_default.rb
deleted file mode 100644
index 41ba5d98afe..00000000000
--- a/db/migrate/20160119112418_add_services_default.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# rubocop:disable all
-class AddServicesDefault < ActiveRecord::Migration[4.2]
-  def up
-    add_column :services, :default, :boolean, default: false
-
-    default = quote_column_name('default')
-    type    = quote_column_name('type')
-
-    execute <<-EOF
-UPDATE services
-SET #{default} = true
-WHERE #{type} = 'GitlabIssueTrackerService'
-EOF
-
-    add_index :services, :default
-  end
-
-  def down
-    remove_column :services, :default
-  end
-end
diff --git a/db/migrate/20160119145451_add_ldap_email_to_users.rb b/db/migrate/20160119145451_add_ldap_email_to_users.rb
deleted file mode 100644
index bf8c27900b8..00000000000
--- a/db/migrate/20160119145451_add_ldap_email_to_users.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# rubocop:disable all
-class AddLdapEmailToUsers < ActiveRecord::Migration[4.2]
-  def up
-    add_column :users, :ldap_email, :boolean, default: false, null: false
-
-    if Gitlab::Database.mysql?
-      execute %{
-        UPDATE users, identities
-        SET users.ldap_email = TRUE
-        WHERE identities.user_id = users.id
-        AND users.email LIKE 'temp-email-for-oauth%'
-        AND identities.provider LIKE 'ldap%'
-        AND identities.extern_uid IS NOT NULL
-      }
-    else
-      execute %{
-        UPDATE users
-        SET ldap_email = TRUE
-        FROM identities
-        WHERE identities.user_id = users.id
-        AND users.email LIKE 'temp-email-for-oauth%'
-        AND identities.provider LIKE 'ldap%'
-        AND identities.extern_uid IS NOT NULL
-      }
-    end
-  end
-
-  def down
-    remove_column :users, :ldap_email
-  end
-end
diff --git a/db/migrate/20160120172143_add_base_commit_sha_to_merge_request_diffs.rb b/db/migrate/20160120172143_add_base_commit_sha_to_merge_request_diffs.rb
deleted file mode 100644
index 9c0a91758f5..00000000000
--- a/db/migrate/20160120172143_add_base_commit_sha_to_merge_request_diffs.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddBaseCommitShaToMergeRequestDiffs < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_request_diffs, :base_commit_sha, :string
-  end
-end
diff --git a/db/migrate/20160121030729_add_email_author_in_body_to_application_settings.rb b/db/migrate/20160121030729_add_email_author_in_body_to_application_settings.rb
deleted file mode 100644
index 0cb1fbe8641..00000000000
--- a/db/migrate/20160121030729_add_email_author_in_body_to_application_settings.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddEmailAuthorInBodyToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :email_author_in_body, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20160122185421_add_pending_delete_to_project.rb b/db/migrate/20160122185421_add_pending_delete_to_project.rb
deleted file mode 100644
index 8db0adc9221..00000000000
--- a/db/migrate/20160122185421_add_pending_delete_to_project.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddPendingDeleteToProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :pending_delete, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20160128212447_remove_ip_blocking_settings_from_application_settings.rb b/db/migrate/20160128212447_remove_ip_blocking_settings_from_application_settings.rb
deleted file mode 100644
index e76f0249ae5..00000000000
--- a/db/migrate/20160128212447_remove_ip_blocking_settings_from_application_settings.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class RemoveIpBlockingSettingsFromApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :application_settings, :ip_blocking_enabled, :boolean, default: false
-    remove_column :application_settings, :dnsbl_servers_list, :text
-  end
-end
diff --git a/db/migrate/20160128233227_change_lfs_objects_size_column.rb b/db/migrate/20160128233227_change_lfs_objects_size_column.rb
deleted file mode 100644
index 65aaf2d9a0b..00000000000
--- a/db/migrate/20160128233227_change_lfs_objects_size_column.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class ChangeLfsObjectsSizeColumn < ActiveRecord::Migration[4.2]
-  def change
-    change_column :lfs_objects, :size, :integer, limit: 8
-  end
-end
diff --git a/db/migrate/20160129135155_remove_dot_atom_path_ending_of_projects.rb b/db/migrate/20160129135155_remove_dot_atom_path_ending_of_projects.rb
deleted file mode 100644
index 6254017615b..00000000000
--- a/db/migrate/20160129135155_remove_dot_atom_path_ending_of_projects.rb
+++ /dev/null
@@ -1,80 +0,0 @@
-class RemoveDotAtomPathEndingOfProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::ShellAdapter
-
-  class ProjectPath
-    attr_reader :old_path, :id, :namespace_path
-
-    def initialize(old_path, id, namespace_path, namespace_id)
-      @old_path = old_path
-      @id = id
-      @namespace_path = namespace_path
-      @namespace_id = namespace_id
-    end
-
-    def clean_path
-      @_clean_path ||= PathCleaner.clean(@old_path, @namespace_id)
-    end
-  end
-
-  class PathCleaner
-    def initialize(path, namespace_id)
-      @namespace_id = namespace_id
-      @path = path
-    end
-
-    def self.clean(*args)
-      new(*args).clean
-    end
-
-    def clean
-      path = cleaned_path
-      count = 0
-      while path_exists?(path)
-        path = "#{cleaned_path}#{count}"
-        count += 1
-      end
-      path
-    end
-
-    private
-
-    def cleaned_path
-      @_cleaned_path ||= @path.gsub(/\.atom\z/, '-atom')
-    end
-
-    def path_exists?(path)
-      Project.find_by_path_and_namespace_id(path, @namespace_id)
-    end
-  end
-
-  def projects_with_dot_atom
-    select_all("SELECT p.id, p.path, n.path as namespace_path, n.id as namespace_id FROM projects p inner join namespaces n on n.id = p.namespace_id WHERE p.path LIKE '%.atom'")
-  end
-
-  def up
-    projects_with_dot_atom.each do |project|
-      project_path = ProjectPath.new(project['path'], project['id'], project['namespace_path'], project['namespace_id'])
-      clean_path(project_path) if rename_project_repo(project_path)
-    end
-  end
-
-  private
-
-  def clean_path(project_path)
-    execute "UPDATE projects SET path = #{sanitize(project_path.clean_path)} WHERE id = #{project_path.id}"
-  end
-
-  def rename_project_repo(project_path)
-    old_path_with_namespace = File.join(project_path.namespace_path, project_path.old_path)
-    new_path_with_namespace = File.join(project_path.namespace_path, project_path.clean_path)
-
-    gitlab_shell.mv_repository("#{old_path_with_namespace}.wiki", "#{new_path_with_namespace}.wiki")
-    gitlab_shell.mv_repository(old_path_with_namespace, new_path_with_namespace)
-  rescue
-    false
-  end
-
-  def sanitize(value)
-    ActiveRecord::Base.connection.quote(value)
-  end
-end
diff --git a/db/migrate/20160129155512_add_merge_commit_sha_to_merge_requests.rb b/db/migrate/20160129155512_add_merge_commit_sha_to_merge_requests.rb
deleted file mode 100644
index 8b84705ce7d..00000000000
--- a/db/migrate/20160129155512_add_merge_commit_sha_to_merge_requests.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddMergeCommitShaToMergeRequests < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_requests, :merge_commit_sha, :string
-  end
-end
diff --git a/db/migrate/20160202091601_add_erasable_to_ci_build.rb b/db/migrate/20160202091601_add_erasable_to_ci_build.rb
deleted file mode 100644
index 214028bd8d3..00000000000
--- a/db/migrate/20160202091601_add_erasable_to_ci_build.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddErasableToCiBuild < ActiveRecord::Migration[4.2]
-  def change
-    add_reference :ci_builds, :erased_by, references: :users, index: true
-    add_column :ci_builds, :erased_at, :datetime
-  end
-end
diff --git a/db/migrate/20160202164642_add_allow_guest_to_access_builds_project.rb b/db/migrate/20160202164642_add_allow_guest_to_access_builds_project.rb
deleted file mode 100644
index 542f9437911..00000000000
--- a/db/migrate/20160202164642_add_allow_guest_to_access_builds_project.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddAllowGuestToAccessBuildsProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :public_builds, :boolean, default: true, null: false
-  end
-end
diff --git a/db/migrate/20160204144558_add_real_size_to_merge_request_diffs.rb b/db/migrate/20160204144558_add_real_size_to_merge_request_diffs.rb
deleted file mode 100644
index c1f1faf0279..00000000000
--- a/db/migrate/20160204144558_add_real_size_to_merge_request_diffs.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddRealSizeToMergeRequestDiffs < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_request_diffs, :real_size, :string
-  end
-end
diff --git a/db/migrate/20160209130428_add_index_to_snippet.rb b/db/migrate/20160209130428_add_index_to_snippet.rb
deleted file mode 100644
index 480ac193d63..00000000000
--- a/db/migrate/20160209130428_add_index_to_snippet.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddIndexToSnippet < ActiveRecord::Migration[4.2]
-  def change
-    add_index :snippets, :updated_at
-  end
-end
diff --git a/db/migrate/20160210105555_create_pages_domain.rb b/db/migrate/20160210105555_create_pages_domain.rb
deleted file mode 100644
index a46906d64ca..00000000000
--- a/db/migrate/20160210105555_create_pages_domain.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class CreatePagesDomain < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :pages_domains do |t|
-      t.integer :project_id
-      t.text    :certificate
-      t.text    :encrypted_key
-      t.string  :encrypted_key_iv
-      t.string  :encrypted_key_salt
-      t.string  :domain
-    end
-
-    add_index :pages_domains, :domain, unique: true
-  end
-end
diff --git a/db/migrate/20160212123307_create_tasks.rb b/db/migrate/20160212123307_create_tasks.rb
deleted file mode 100644
index 33acc8af91f..00000000000
--- a/db/migrate/20160212123307_create_tasks.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class CreateTasks < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :tasks do |t|
-      t.references :user, null: false, index: true
-      t.references :project, null: false, index: true
-      t.references :target, polymorphic: true, null: false, index: true
-      t.integer :author_id, index: true
-      t.integer :action, null: false
-      t.string :state, null: false, index: true
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20160217100506_add_description_to_label.rb b/db/migrate/20160217100506_add_description_to_label.rb
deleted file mode 100644
index 116de8ddfa9..00000000000
--- a/db/migrate/20160217100506_add_description_to_label.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddDescriptionToLabel < ActiveRecord::Migration[4.2]
-  def change
-    add_column :labels, :description, :string
-  end
-end
diff --git a/db/migrate/20160217174422_add_note_to_tasks.rb b/db/migrate/20160217174422_add_note_to_tasks.rb
deleted file mode 100644
index c2a42ce5dd8..00000000000
--- a/db/migrate/20160217174422_add_note_to_tasks.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddNoteToTasks < ActiveRecord::Migration[4.2]
-  def change
-    add_reference :tasks, :note, index: true
-  end
-end
diff --git a/db/migrate/20160220123949_rename_tasks_to_todos.rb b/db/migrate/20160220123949_rename_tasks_to_todos.rb
deleted file mode 100644
index 0cc110a0a1a..00000000000
--- a/db/migrate/20160220123949_rename_tasks_to_todos.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class RenameTasksToTodos < ActiveRecord::Migration[4.2]
-  def change
-    rename_table :tasks, :todos
-  end
-end
diff --git a/db/migrate/20160222153918_create_appearances_ce.rb b/db/migrate/20160222153918_create_appearances_ce.rb
deleted file mode 100644
index 37bbe62ad3d..00000000000
--- a/db/migrate/20160222153918_create_appearances_ce.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable all
-class CreateAppearancesCe < ActiveRecord::Migration[4.2]
-  def change
-    unless table_exists?(:appearances)
-      create_table :appearances do |t|
-        t.string :title
-        t.text :description
-        t.string :header_logo
-        t.string :logo
-
-        t.timestamps null: false
-      end
-    end
-  end
-end
diff --git a/db/migrate/20160223192159_add_confidential_to_issues.rb b/db/migrate/20160223192159_add_confidential_to_issues.rb
deleted file mode 100644
index ca029f12337..00000000000
--- a/db/migrate/20160223192159_add_confidential_to_issues.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddConfidentialToIssues < ActiveRecord::Migration[4.2]
-  def change
-    add_column :issues, :confidential, :boolean, default: false
-    add_index :issues, :confidential
-  end
-end
diff --git a/db/migrate/20160225090018_add_delete_at_to_issues.rb b/db/migrate/20160225090018_add_delete_at_to_issues.rb
deleted file mode 100644
index 3ae74f491f6..00000000000
--- a/db/migrate/20160225090018_add_delete_at_to_issues.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddDeleteAtToIssues < ActiveRecord::Migration[4.2]
-  def change
-    add_column :issues, :deleted_at, :datetime
-    add_index :issues, :deleted_at
-  end
-end
diff --git a/db/migrate/20160225101956_add_delete_at_to_merge_requests.rb b/db/migrate/20160225101956_add_delete_at_to_merge_requests.rb
deleted file mode 100644
index ce8657ba88c..00000000000
--- a/db/migrate/20160225101956_add_delete_at_to_merge_requests.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddDeleteAtToMergeRequests < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_requests, :deleted_at, :datetime
-    add_index :merge_requests, :deleted_at
-  end
-end
diff --git a/db/migrate/20160226114608_add_trigram_indexes_for_searching.rb b/db/migrate/20160226114608_add_trigram_indexes_for_searching.rb
deleted file mode 100644
index af8b08c095a..00000000000
--- a/db/migrate/20160226114608_add_trigram_indexes_for_searching.rb
+++ /dev/null
@@ -1,65 +0,0 @@
-# rubocop:disable all
-class AddTrigramIndexesForSearching < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    create_trigrams_extension
-
-    unless trigrams_enabled?
-      raise 'You must enable the pg_trgm extension. You can do so by running ' \
-        '"CREATE EXTENSION pg_trgm;" as a PostgreSQL super user, this must be ' \
-        'done for every GitLab database. For more information see ' \
-        'http://www.postgresql.org/docs/current/static/sql-createextension.html'
-    end
-
-    # trigram indexes are case-insensitive so we can just index the column
-    # instead of indexing lower(column)
-    to_index.each do |table, columns|
-      columns.each do |column|
-        execute "CREATE INDEX CONCURRENTLY index_#{table}_on_#{column}_trigram ON #{table} USING gin(#{column} gin_trgm_ops);"
-      end
-    end
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    to_index.each do |table, columns|
-      columns.each do |column|
-        remove_index table, name: "index_#{table}_on_#{column}_trigram"
-      end
-    end
-  end
-
-  def trigrams_enabled?
-    res = execute("SELECT true AS enabled FROM pg_available_extensions WHERE name = 'pg_trgm' AND installed_version IS NOT NULL;")
-    row = res.first
-
-    row && row['enabled'] == true
-  end
-
-  def create_trigrams_extension
-    # This may not work if the user doesn't have permission. We attempt in
-    # case we do have permission, particularly for test/dev environments.
-    begin
-      enable_extension 'pg_trgm'
-    rescue
-    end
-  end
-
-  def to_index
-    {
-      ci_runners:     [:token, :description],
-      issues:         [:title, :description],
-      merge_requests: [:title, :description],
-      milestones:     [:title, :description],
-      namespaces:     [:name, :path],
-      notes:          [:note],
-      projects:       [:name, :path, :description],
-      snippets:       [:title, :file_name],
-      users:          [:username, :name, :email]
-    }
-  end
-end
diff --git a/db/migrate/20160227120001_add_event_field_for_web_hook.rb b/db/migrate/20160227120001_add_event_field_for_web_hook.rb
deleted file mode 100644
index 22bbd73114f..00000000000
--- a/db/migrate/20160227120001_add_event_field_for_web_hook.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddEventFieldForWebHook < ActiveRecord::Migration[4.2]
-  def change
-    add_column :web_hooks, :wiki_page_events, :boolean, default: false, null: false
-  end
-end
diff --git a/db/migrate/20160227120047_add_event_to_services.rb b/db/migrate/20160227120047_add_event_to_services.rb
deleted file mode 100644
index a3b94734ec2..00000000000
--- a/db/migrate/20160227120047_add_event_to_services.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddEventToServices < ActiveRecord::Migration[4.2]
-  def change
-    add_column :services, :wiki_page_events, :boolean, default: true
-  end
-end
diff --git a/db/migrate/20160229193553_add_main_language_to_repository.rb b/db/migrate/20160229193553_add_main_language_to_repository.rb
deleted file mode 100644
index 15f9a382802..00000000000
--- a/db/migrate/20160229193553_add_main_language_to_repository.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddMainLanguageToRepository < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :main_language, :string
-  end
-end
diff --git a/db/migrate/20160301124843_add_visibility_level_to_groups.rb b/db/migrate/20160301124843_add_visibility_level_to_groups.rb
deleted file mode 100644
index ed4bca4f1ba..00000000000
--- a/db/migrate/20160301124843_add_visibility_level_to_groups.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# rubocop:disable all
-class AddVisibilityLevelToGroups < ActiveRecord::Migration[4.2]
-  def up
-    add_column :namespaces, :visibility_level, :integer, null: false, default: Gitlab::VisibilityLevel::PUBLIC
-    add_index :namespaces, :visibility_level
-
-    # Unfortunately, this is needed on top of the `default`, since we don't want the configuration specific
-    # `allowed_visibility_level` to end up in schema.rb
-    if allowed_visibility_level < Gitlab::VisibilityLevel::PUBLIC
-      execute("UPDATE namespaces SET visibility_level = #{allowed_visibility_level}")
-    end
-  end
-
-  def down
-    remove_column :namespaces, :visibility_level
-  end
-
-  private
-
-  def allowed_visibility_level
-    application_settings = select_one("SELECT restricted_visibility_levels FROM application_settings ORDER BY id DESC LIMIT 1")
-    if application_settings
-      restricted_visibility_levels = YAML.safe_load(application_settings["restricted_visibility_levels"]) rescue nil
-    end
-    restricted_visibility_levels ||= []
-
-    allowed_levels = Gitlab::VisibilityLevel.values - restricted_visibility_levels
-    allowed_levels.max
-  end
-end
diff --git a/db/migrate/20160301174731_add_fingerprint_index.rb b/db/migrate/20160301174731_add_fingerprint_index.rb
deleted file mode 100644
index b13373a0468..00000000000
--- a/db/migrate/20160301174731_add_fingerprint_index.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class AddFingerprintIndex < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  # https://gitlab.com/gitlab-org/gitlab-ee/issues/764
-  def change
-    args = [:keys, :fingerprint]
-
-    if Gitlab::Database.postgresql?
-      args << { algorithm: :concurrently }
-    end
-
-    add_index(*args) unless index_exists?(:keys, :fingerprint)
-  end
-end
diff --git a/db/migrate/20160302151724_add_import_credentials_to_project_import_data.rb b/db/migrate/20160302151724_add_import_credentials_to_project_import_data.rb
deleted file mode 100644
index b0ea05bd6e1..00000000000
--- a/db/migrate/20160302151724_add_import_credentials_to_project_import_data.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddImportCredentialsToProjectImportData < ActiveRecord::Migration[4.2]
-  def change
-    add_column :project_import_data, :encrypted_credentials, :text
-    add_column :project_import_data, :encrypted_credentials_iv, :string
-    add_column :project_import_data, :encrypted_credentials_salt, :string
-  end
-end
diff --git a/db/migrate/20160302152808_remove_wrong_import_url_from_projects.rb b/db/migrate/20160302152808_remove_wrong_import_url_from_projects.rb
deleted file mode 100644
index 8a319554c28..00000000000
--- a/db/migrate/20160302152808_remove_wrong_import_url_from_projects.rb
+++ /dev/null
@@ -1,138 +0,0 @@
-# rubocop:disable all
-# Loops through old importer projects that kept a token/password in the import URL
-# and encrypts the credentials into a separate field in project#import_data
-# #down method not supported
-class RemoveWrongImportUrlFromProjects < ActiveRecord::Migration[4.2]
-
-  class ProjectImportDataFake
-    extend AttrEncrypted
-    attr_accessor :credentials
-    attr_encrypted :credentials,
-                   key: Settings.attr_encrypted_db_key_base,
-                   marshal: true,
-                   encode: true,
-                   :mode => :per_attribute_iv_and_salt,
-                   insecure_mode: true,
-                   algorithm: 'aes-256-cbc'
-  end
-
-  def up
-    say("Encrypting and migrating project import credentials...")
-
-    # This should cover GitHub, GitLab, Bitbucket user:password, token@domain, and other similar URLs.
-    in_transaction(message: "Projects including GitHub and GitLab projects with an unsecured URL.") { process_projects_with_wrong_url }
-
-    in_transaction(message: "Migrating Bitbucket credentials...") { process_project(import_type: 'bitbucket', credentials_keys: ['bb_session']) }
-
-    in_transaction(message: "Migrating FogBugz credentials...") { process_project(import_type: 'fogbugz', credentials_keys: ['fb_session']) }
-
-  end
-
-  def process_projects_with_wrong_url
-    projects_with_wrong_import_url.each do |project|
-      begin
-        import_url = Gitlab::UrlSanitizer.new(project["import_url"])
-
-        update_import_url(import_url, project)
-        update_import_data(import_url, project)
-      rescue Addressable::URI::InvalidURIError
-        nullify_import_url(project)
-      end
-    end
-  end
-
-  def process_project(import_type:, credentials_keys: [])
-    unencrypted_import_data(import_type: import_type).each do |data|
-      replace_data_credentials(data, credentials_keys)
-    end
-  end
-
-  def replace_data_credentials(data, credentials_keys)
-    data_hash = JSON.load(data['data']) if data['data']
-    unless data_hash.blank?
-      encrypted_data_hash = encrypt_data(data_hash, credentials_keys)
-      unencrypted_data = data_hash.empty? ? ' NULL ' :  quote(data_hash.to_json)
-      update_with_encrypted_data(encrypted_data_hash, data['id'], unencrypted_data)
-    end
-  end
-
-  def encrypt_data(data_hash, credentials_keys)
-    new_data_hash = {}
-    credentials_keys.each do |key|
-      new_data_hash[key.to_sym] = data_hash.delete(key) if data_hash[key]
-    end
-    new_data_hash.deep_symbolize_keys
-  end
-
-  def in_transaction(message:)
-    say_with_time(message) do
-      ActiveRecord::Base.transaction do
-        yield
-      end
-    end
-  end
-
-  def update_import_data(import_url, project)
-    fake_import_data = ProjectImportDataFake.new
-    fake_import_data.credentials = import_url.credentials
-    import_data_id = project['import_data_id']
-    if import_data_id
-      execute(update_import_data_sql(import_data_id, fake_import_data))
-    else
-      execute(insert_import_data_sql(project['id'], fake_import_data))
-    end
-  end
-
-  def update_with_encrypted_data(data_hash, import_data_id, unencrypted_data = ' NULL ')
-    fake_import_data = ProjectImportDataFake.new
-    fake_import_data.credentials = data_hash
-    execute(update_import_data_sql(import_data_id, fake_import_data, unencrypted_data))
-  end
-
-  def update_import_url(import_url, project)
-    execute("UPDATE projects SET import_url = #{quote(import_url.sanitized_url)} WHERE id = #{project['id']}")
-  end
-
-  def nullify_import_url(project)
-    execute("UPDATE projects SET import_url = NULL WHERE id = #{project['id']}")
-  end
-
-  def insert_import_data_sql(project_id, fake_import_data)
-    %(
-      INSERT INTO project_import_data
-                  (encrypted_credentials,
-                   project_id,
-                   encrypted_credentials_iv,
-                   encrypted_credentials_salt)
-      VALUES      ( #{quote(fake_import_data.encrypted_credentials)},
-                    '#{project_id}',
-                    #{quote(fake_import_data.encrypted_credentials_iv)},
-                    #{quote(fake_import_data.encrypted_credentials_salt)})
-    ).squish
-  end
-
-  def update_import_data_sql(id, fake_import_data, data = 'NULL')
-    %(
-      UPDATE project_import_data
-      SET    encrypted_credentials = #{quote(fake_import_data.encrypted_credentials)},
-             encrypted_credentials_iv = #{quote(fake_import_data.encrypted_credentials_iv)},
-             encrypted_credentials_salt = #{quote(fake_import_data.encrypted_credentials_salt)},
-             data = #{data}
-      WHERE  id = '#{id}'
-    ).squish
-  end
-
-  #GitHub projects with token, and any user:password@ based URL
-  def projects_with_wrong_import_url
-    select_all("SELECT p.id, p.import_url, i.id as import_data_id FROM projects p LEFT JOIN project_import_data i on p.id = i.project_id WHERE p.import_url <> '' AND p.import_url LIKE '%//%@%'")
-  end
-
-  # All imports with data for import_type
-  def unencrypted_import_data(import_type: )
-    select_all("SELECT i.id, p.import_url, i.data FROM projects p INNER JOIN project_import_data i ON p.id = i.project_id WHERE p.import_url <> '' AND p.import_type = '#{import_type}' ")
-  end
-
-  def quote(value)
-    ActiveRecord::Base.connection.quote(value)
-  end
-end
diff --git a/db/migrate/20160305220806_remove_expires_at_from_snippets.rb b/db/migrate/20160305220806_remove_expires_at_from_snippets.rb
deleted file mode 100644
index 6835f534926..00000000000
--- a/db/migrate/20160305220806_remove_expires_at_from_snippets.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class RemoveExpiresAtFromSnippets < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :snippets, :expires_at, :datetime
-  end
-end
diff --git a/db/migrate/20160307221555_disallow_blank_line_code_on_note.rb b/db/migrate/20160307221555_disallow_blank_line_code_on_note.rb
deleted file mode 100644
index 26b65ef7037..00000000000
--- a/db/migrate/20160307221555_disallow_blank_line_code_on_note.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class DisallowBlankLineCodeOnNote < ActiveRecord::Migration[4.2]
-  def up
-    execute("UPDATE notes SET line_code = NULL WHERE line_code = ''")
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/migrate/20160308212903_add_default_group_visibility_to_application_settings.rb b/db/migrate/20160308212903_add_default_group_visibility_to_application_settings.rb
deleted file mode 100644
index 16053408fe0..00000000000
--- a/db/migrate/20160308212903_add_default_group_visibility_to_application_settings.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# rubocop:disable all
-# Create visibility level field on DB
-# Sets default_visibility_level to value on settings if not restricted
-# If value is restricted takes higher visibility level allowed
-
-class AddDefaultGroupVisibilityToApplicationSettings < ActiveRecord::Migration[4.2]
-  def up
-    add_column :application_settings, :default_group_visibility, :integer
-    # Unfortunately, this can't be a `default`, since we don't want the configuration specific
-    # `allowed_visibility_level` to end up in schema.rb
-
-    visibility_level = allowed_visibility_level || Gitlab::VisibilityLevel::PRIVATE
-    execute("UPDATE application_settings SET default_group_visibility = #{visibility_level}")
-  end
-
-  def down
-    remove_column :application_settings, :default_group_visibility
-  end
-
-  private
-
-  def allowed_visibility_level
-    application_settings = select_one("SELECT restricted_visibility_levels FROM application_settings ORDER BY id DESC LIMIT 1")
-    if application_settings
-      restricted_visibility_levels = YAML.safe_load(application_settings["restricted_visibility_levels"]) rescue nil
-    end
-    restricted_visibility_levels ||= []
-
-    allowed_levels = Gitlab::VisibilityLevel.values - restricted_visibility_levels
-    allowed_levels.max
-  end
-end
diff --git a/db/migrate/20160309140734_fix_todos.rb b/db/migrate/20160309140734_fix_todos.rb
deleted file mode 100644
index 917055f5036..00000000000
--- a/db/migrate/20160309140734_fix_todos.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class FixTodos < ActiveRecord::Migration[4.2]
- def up
-    execute <<-SQL
-      DELETE FROM todos
-      WHERE todos.target_type IN ('Commit', 'ProjectSnippet')
-         OR NOT EXISTS (
-              SELECT *
-              FROM projects
-              WHERE projects.id = todos.project_id
-            )
-    SQL
- end
-
- def down
- end
-end
diff --git a/db/migrate/20160310124959_add_due_date_to_issues.rb b/db/migrate/20160310124959_add_due_date_to_issues.rb
deleted file mode 100644
index 8da38ea60b1..00000000000
--- a/db/migrate/20160310124959_add_due_date_to_issues.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddDueDateToIssues < ActiveRecord::Migration[4.2]
-  def change
-    add_column :issues, :due_date, :date
-    add_index :issues, :due_date
-  end
-end
diff --git a/db/migrate/20160310185910_add_external_flag_to_users.rb b/db/migrate/20160310185910_add_external_flag_to_users.rb
deleted file mode 100644
index 768bbe4cd42..00000000000
--- a/db/migrate/20160310185910_add_external_flag_to_users.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddExternalFlagToUsers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :users, :external, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20160314094147_add_priority_to_label.rb b/db/migrate/20160314094147_add_priority_to_label.rb
deleted file mode 100644
index 8e2aaf50109..00000000000
--- a/db/migrate/20160314094147_add_priority_to_label.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddPriorityToLabel < ActiveRecord::Migration[4.2]
-  def change
-    add_column :labels, :priority, :integer
-    add_index :labels, :priority
-  end
-end
diff --git a/db/migrate/20160314114439_add_requested_at_to_members.rb b/db/migrate/20160314114439_add_requested_at_to_members.rb
deleted file mode 100644
index e7e03f96ef8..00000000000
--- a/db/migrate/20160314114439_add_requested_at_to_members.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddRequestedAtToMembers < ActiveRecord::Migration[4.2]
-  def change
-    add_column :members, :requested_at, :datetime
-  end
-end
diff --git a/db/migrate/20160314143402_projects_add_pushes_since_gc.rb b/db/migrate/20160314143402_projects_add_pushes_since_gc.rb
deleted file mode 100644
index e64093d39cf..00000000000
--- a/db/migrate/20160314143402_projects_add_pushes_since_gc.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class ProjectsAddPushesSinceGc < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :pushes_since_gc, :integer, default: 0
-  end
-end
diff --git a/db/migrate/20160315135439_project_add_repository_check.rb b/db/migrate/20160315135439_project_add_repository_check.rb
deleted file mode 100644
index c03d8bb041c..00000000000
--- a/db/migrate/20160315135439_project_add_repository_check.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# rubocop:disable all
-class ProjectAddRepositoryCheck < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :last_repository_check_failed, :boolean
-    add_index :projects, :last_repository_check_failed
-
-    add_column :projects, :last_repository_check_at, :datetime
-  end
-end
diff --git a/db/migrate/20160316123110_ci_runners_token_index.rb b/db/migrate/20160316123110_ci_runners_token_index.rb
deleted file mode 100644
index 026846e6464..00000000000
--- a/db/migrate/20160316123110_ci_runners_token_index.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable all
-class CiRunnersTokenIndex < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  def change
-    args = [:ci_runners, :token]
-
-    if Gitlab::Database.postgresql?
-      args << { algorithm: :concurrently }
-    end
-
-    add_index(*args)
-  end
-end
diff --git a/db/migrate/20160316192622_change_target_id_to_null_on_todos.rb b/db/migrate/20160316192622_change_target_id_to_null_on_todos.rb
deleted file mode 100644
index 488c3d4945c..00000000000
--- a/db/migrate/20160316192622_change_target_id_to_null_on_todos.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class ChangeTargetIdToNullOnTodos < ActiveRecord::Migration[4.2]
-  def change
-    change_column_null :todos, :target_id, true
-  end
-end
diff --git a/db/migrate/20160316204731_add_commit_id_to_todos.rb b/db/migrate/20160316204731_add_commit_id_to_todos.rb
deleted file mode 100644
index d1c004b2ced..00000000000
--- a/db/migrate/20160316204731_add_commit_id_to_todos.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddCommitIdToTodos < ActiveRecord::Migration[4.2]
-  def change
-    add_column :todos, :commit_id, :string
-    add_index :todos, :commit_id
-  end
-end
diff --git a/db/migrate/20160317092222_add_moved_to_to_issue.rb b/db/migrate/20160317092222_add_moved_to_to_issue.rb
deleted file mode 100644
index 8d81d84fd20..00000000000
--- a/db/migrate/20160317092222_add_moved_to_to_issue.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddMovedToToIssue < ActiveRecord::Migration[4.2]
-  def change
-    add_reference :issues, :moved_to, references: :issues # rubocop:disable Migration/AddReference
-  end
-end
diff --git a/db/migrate/20160320204112_index_namespaces_on_visibility_level.rb b/db/migrate/20160320204112_index_namespaces_on_visibility_level.rb
deleted file mode 100644
index 9692def430c..00000000000
--- a/db/migrate/20160320204112_index_namespaces_on_visibility_level.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable all
-class IndexNamespacesOnVisibilityLevel < ActiveRecord::Migration[4.2]
-  def change
-    unless index_exists?(:namespaces, :visibility_level)
-      add_index :namespaces, :visibility_level
-    end
-  end
-end
diff --git a/db/migrate/20160324020319_remove_todos_for_deleted_issues.rb b/db/migrate/20160324020319_remove_todos_for_deleted_issues.rb
deleted file mode 100644
index a25d15a81ef..00000000000
--- a/db/migrate/20160324020319_remove_todos_for_deleted_issues.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class RemoveTodosForDeletedIssues < ActiveRecord::Migration[4.2]
-  def up
-    execute <<-SQL
-      DELETE FROM todos
-      WHERE todos.target_type = 'Issue'
-        AND NOT EXISTS (
-              SELECT *
-              FROM issues
-              WHERE issues.id = todos.target_id
-                AND issues.deleted_at IS NULL
-            )
-    SQL
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20160328112808_create_notification_settings.rb b/db/migrate/20160328112808_create_notification_settings.rb
deleted file mode 100644
index db19d2e370c..00000000000
--- a/db/migrate/20160328112808_create_notification_settings.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# rubocop:disable all
-class CreateNotificationSettings < ActiveRecord::Migration[4.2]
-  def change
-    create_table :notification_settings do |t|
-      t.references :user, null: false
-      t.references :source, polymorphic: true, null: false
-      t.integer :level, default: 0, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160328115649_migrate_new_notification_setting.rb b/db/migrate/20160328115649_migrate_new_notification_setting.rb
deleted file mode 100644
index 5ba09e75145..00000000000
--- a/db/migrate/20160328115649_migrate_new_notification_setting.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# This migration will create one row of NotificationSetting for each Member row
-# It can take long time on big instances.
-#
-# This migration can be done online but with following effects:
-# - during migration some users will receive notifications based on their global settings (project/group settings will be ignored)
-# - its possible to get duplicate records for notification settings since we don't create uniq index yet
-#
-class MigrateNewNotificationSetting < ActiveRecord::Migration[4.2]
-  def up
-    timestamp = Time.now.strftime('%F %T')
-    execute "INSERT INTO notification_settings ( user_id, source_id, source_type, level, created_at, updated_at ) SELECT user_id, source_id, source_type, notification_level, '#{timestamp}', '#{timestamp}' FROM members WHERE user_id IS NOT NULL"
-  end
-
-  def down
-    execute "DELETE FROM notification_settings"
-  end
-end
diff --git a/db/migrate/20160328121138_add_notification_setting_index.rb b/db/migrate/20160328121138_add_notification_setting_index.rb
deleted file mode 100644
index ed82b172296..00000000000
--- a/db/migrate/20160328121138_add_notification_setting_index.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddNotificationSettingIndex < ActiveRecord::Migration[4.2]
-  def change
-    add_index :notification_settings, :user_id
-    add_index :notification_settings, [:source_id, :source_type]
-  end
-end
diff --git a/db/migrate/20160329144452_add_index_on_pending_delete_projects.rb b/db/migrate/20160329144452_add_index_on_pending_delete_projects.rb
deleted file mode 100644
index 15c44f74451..00000000000
--- a/db/migrate/20160329144452_add_index_on_pending_delete_projects.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable all
-class AddIndexOnPendingDeleteProjects < ActiveRecord::Migration[4.2]
-  def change
-    add_index :projects, :pending_delete
-  end
-end
-
diff --git a/db/migrate/20160331133914_remove_todos_for_deleted_merge_requests.rb b/db/migrate/20160331133914_remove_todos_for_deleted_merge_requests.rb
deleted file mode 100644
index 634a696377c..00000000000
--- a/db/migrate/20160331133914_remove_todos_for_deleted_merge_requests.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class RemoveTodosForDeletedMergeRequests < ActiveRecord::Migration[4.2]
-  def up
-    execute <<-SQL
-      DELETE FROM todos
-      WHERE todos.target_type = 'MergeRequest'
-        AND NOT EXISTS (
-              SELECT *
-              FROM merge_requests
-              WHERE merge_requests.id = todos.target_id
-                AND merge_requests.deleted_at IS NULL
-            )
-    SQL
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20160331223143_remove_twitter_sharing_enabled_from_application_settings.rb b/db/migrate/20160331223143_remove_twitter_sharing_enabled_from_application_settings.rb
deleted file mode 100644
index 6e5a748d096..00000000000
--- a/db/migrate/20160331223143_remove_twitter_sharing_enabled_from_application_settings.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class RemoveTwitterSharingEnabledFromApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :application_settings, :twitter_sharing_enabled, :boolean
-  end
-end
diff --git a/db/migrate/20160407120251_add_images_enabled_for_project.rb b/db/migrate/20160407120251_add_images_enabled_for_project.rb
deleted file mode 100644
index 2c42d89ccdf..00000000000
--- a/db/migrate/20160407120251_add_images_enabled_for_project.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddImagesEnabledForProject < ActiveRecord::Migration[4.2]
-  def change
-    add_column :projects, :container_registry_enabled, :boolean
-  end
-end
diff --git a/db/migrate/20160412140240_add_repository_checks_enabled_setting.rb b/db/migrate/20160412140240_add_repository_checks_enabled_setting.rb
deleted file mode 100644
index a59563b835e..00000000000
--- a/db/migrate/20160412140240_add_repository_checks_enabled_setting.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class AddRepositoryChecksEnabledSetting < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :repository_checks_enabled, :boolean, default: true
-  end
-end
diff --git a/db/migrate/20160412173416_add_fields_to_ci_commit.rb b/db/migrate/20160412173416_add_fields_to_ci_commit.rb
deleted file mode 100644
index 4b3d4e8bd30..00000000000
--- a/db/migrate/20160412173416_add_fields_to_ci_commit.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# rubocop:disable all
-class AddFieldsToCiCommit < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_commits, :status, :string
-    add_column :ci_commits, :started_at, :timestamp
-    add_column :ci_commits, :finished_at, :timestamp
-    add_column :ci_commits, :duration, :integer
-  end
-end
diff --git a/db/migrate/20160412173417_update_ci_commit.rb b/db/migrate/20160412173417_update_ci_commit.rb
deleted file mode 100644
index 91dd4582f7a..00000000000
--- a/db/migrate/20160412173417_update_ci_commit.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-# rubocop:disable all
-class UpdateCiCommit < ActiveRecord::Migration[4.2]
-  # This migration can be run online, but needs to be executed for the second time after restarting Unicorn workers
-  # Otherwise Offline migration should be used.
-  def change
-    execute("UPDATE ci_commits SET status=#{status}, ref=#{ref}, tag=#{tag} WHERE status IS NULL")
-  end
-
-  private
-
-  def status
-    builds = '(SELECT COUNT(*) FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id)'
-    success = "(SELECT COUNT(*) FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id AND status='success')"
-    ignored = "(SELECT COUNT(*) FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id AND (status='failed' OR status='canceled') AND allow_failure)"
-    pending = "(SELECT COUNT(*) FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id AND status='pending')"
-    running = "(SELECT COUNT(*) FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id AND status='running')"
-    canceled = "(SELECT COUNT(*) FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id AND status='canceled')"
-
-    "(CASE
-      WHEN #{builds}=0 THEN 'skipped'
-      WHEN #{builds}=#{success}+#{ignored} THEN 'success'
-      WHEN #{builds}=#{pending} THEN 'pending'
-      WHEN #{builds}=#{canceled} THEN 'canceled'
-      WHEN #{running}+#{pending}>0 THEN 'running'
-      ELSE 'failed'
-    END)"
-  end
-
-  def ref
-    '(SELECT ref FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id ORDER BY id DESC LIMIT 1)'
-  end
-
-  def tag
-    '(SELECT tag FROM ci_builds WHERE ci_builds.commit_id=ci_commits.id ORDER BY id DESC LIMIT 1)'
-  end
-end
diff --git a/db/migrate/20160412173418_add_ci_commit_indexes.rb b/db/migrate/20160412173418_add_ci_commit_indexes.rb
deleted file mode 100644
index 709e6b84d57..00000000000
--- a/db/migrate/20160412173418_add_ci_commit_indexes.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# rubocop:disable all
-class AddCiCommitIndexes < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  def change
-    add_index :ci_commits, [:gl_project_id, :sha], index_options
-    add_index :ci_commits, [:gl_project_id, :status], index_options
-    add_index :ci_commits, [:status], index_options
-  end
-
-  private
-
-  def index_options
-    if Gitlab::Database.postgresql?
-      { algorithm: :concurrently }
-    else
-      { }
-    end
-  end
-end
diff --git a/db/migrate/20160413115152_add_token_to_web_hooks.rb b/db/migrate/20160413115152_add_token_to_web_hooks.rb
deleted file mode 100644
index 43fe46dfe5d..00000000000
--- a/db/migrate/20160413115152_add_token_to_web_hooks.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddTokenToWebHooks < ActiveRecord::Migration[4.2]
-  def change
-    add_column :web_hooks, :token, :string
-  end
-end
diff --git a/db/migrate/20160415062917_create_personal_access_tokens.rb b/db/migrate/20160415062917_create_personal_access_tokens.rb
deleted file mode 100644
index 43599db799e..00000000000
--- a/db/migrate/20160415062917_create_personal_access_tokens.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreatePersonalAccessTokens < ActiveRecord::Migration[4.2]
-  def change
-    create_table :personal_access_tokens do |t|
-      t.references :user, index: true, foreign_key: true, null: false
-      t.string :token, index: { unique: true }, null: false
-      t.string :name, null: false
-      t.boolean :revoked, default: false
-      t.datetime :expires_at
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160415133440_add_shared_runners_text_to_application_settings.rb b/db/migrate/20160415133440_add_shared_runners_text_to_application_settings.rb
deleted file mode 100644
index e96c0591a07..00000000000
--- a/db/migrate/20160415133440_add_shared_runners_text_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddSharedRunnersTextToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :shared_runners_text, :text
-  end
-end
diff --git a/db/migrate/20160416180807_add_award_emoji.rb b/db/migrate/20160416180807_add_award_emoji.rb
deleted file mode 100644
index 99c984fd116..00000000000
--- a/db/migrate/20160416180807_add_award_emoji.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable all
-class AddAwardEmoji < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :award_emoji do |t|
-      t.string :name
-      t.references :user
-      t.references :awardable, polymorphic: true
-
-      t.timestamps null: true
-    end
-
-    add_index :award_emoji, :user_id
-    add_index :award_emoji, [:awardable_type, :awardable_id]
-  end
-end
diff --git a/db/migrate/20160416182152_convert_award_note_to_emoji_award.rb b/db/migrate/20160416182152_convert_award_note_to_emoji_award.rb
deleted file mode 100644
index af2820986f0..00000000000
--- a/db/migrate/20160416182152_convert_award_note_to_emoji_award.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-class ConvertAwardNoteToEmojiAward < ActiveRecord::Migration[4.2]
-  disable_ddl_transaction!
-
-  def up
-    if Gitlab::Database.postgresql?
-      migrate_postgresql
-    else
-      migrate_mysql
-    end
-  end
-
-  def down
-    add_column :notes, :is_award, :boolean
-
-    # This migration does NOT move the awards on notes, if the table is dropped in another migration, these notes will be lost.
-    execute "INSERT INTO notes (noteable_type, noteable_id, author_id, note, created_at, updated_at, is_award) (SELECT awardable_type, awardable_id, user_id, name, created_at, updated_at, TRUE FROM award_emoji)"
-  end
-
-  def migrate_postgresql
-    connection.transaction do
-      execute 'LOCK notes IN EXCLUSIVE MODE'
-      execute "INSERT INTO award_emoji (awardable_type, awardable_id, user_id, name, created_at, updated_at) (SELECT noteable_type, noteable_id, author_id, note, created_at, updated_at FROM notes WHERE is_award = true)"
-      execute "DELETE FROM notes WHERE is_award = true"
-      remove_column :notes, :is_award, :boolean
-    end
-  end
-
-  def migrate_mysql
-    execute 'LOCK TABLES notes WRITE, award_emoji WRITE;'
-    execute 'INSERT INTO award_emoji (awardable_type, awardable_id, user_id, name, created_at, updated_at) (SELECT noteable_type, noteable_id, author_id, note, created_at, updated_at FROM notes WHERE is_award = true);'
-    execute "DELETE FROM notes WHERE is_award = true"
-    remove_column :notes, :is_award, :boolean
-  ensure
-    execute 'UNLOCK TABLES'
-  end
-end
diff --git a/db/migrate/20160419120017_add_metrics_packet_size.rb b/db/migrate/20160419120017_add_metrics_packet_size.rb
deleted file mode 100644
index 16c3ebfe22b..00000000000
--- a/db/migrate/20160419120017_add_metrics_packet_size.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddMetricsPacketSize < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :metrics_packet_size, :integer, default: 1
-  end
-end
diff --git a/db/migrate/20160419122101_add_only_allow_merge_if_build_succeeds_to_projects.rb b/db/migrate/20160419122101_add_only_allow_merge_if_build_succeeds_to_projects.rb
deleted file mode 100644
index cf842a684a6..00000000000
--- a/db/migrate/20160419122101_add_only_allow_merge_if_build_succeeds_to_projects.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddOnlyAllowMergeIfBuildSucceedsToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:projects,
-                            :only_allow_merge_if_build_succeeds,
-                            :boolean,
-                            default: false)
-  end
-
-  def down
-    remove_column(:projects, :only_allow_merge_if_build_succeeds)
-  end
-end
diff --git a/db/migrate/20160421130527_disable_repository_checks.rb b/db/migrate/20160421130527_disable_repository_checks.rb
deleted file mode 100644
index 8b3ce73c5e8..00000000000
--- a/db/migrate/20160421130527_disable_repository_checks.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# rubocop:disable all
-class DisableRepositoryChecks < ActiveRecord::Migration[4.2]
-  def up
-    change_column_default :application_settings, :repository_checks_enabled, false 
-    execute 'UPDATE application_settings SET repository_checks_enabled = false'
-  end
-
-  def down
-    change_column_default :application_settings, :repository_checks_enabled, true    
-    execute 'UPDATE application_settings SET repository_checks_enabled = true'
-  end
-end
diff --git a/db/migrate/20160425045124_create_u2f_registrations.rb b/db/migrate/20160425045124_create_u2f_registrations.rb
deleted file mode 100644
index 9b48fc822b6..00000000000
--- a/db/migrate/20160425045124_create_u2f_registrations.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable all
-class CreateU2fRegistrations < ActiveRecord::Migration[4.2]
-  def change
-    create_table :u2f_registrations do |t|
-      t.text :certificate
-      t.string :key_handle, index: true
-      t.string :public_key
-      t.integer :counter
-      t.references :user, index: true, foreign_key: true
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160504091942_add_disabled_oauth_sign_in_sources_to_application_settings.rb b/db/migrate/20160504091942_add_disabled_oauth_sign_in_sources_to_application_settings.rb
deleted file mode 100644
index 9a0d1a2d316..00000000000
--- a/db/migrate/20160504091942_add_disabled_oauth_sign_in_sources_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddDisabledOauthSignInSourcesToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :disabled_oauth_sign_in_sources, :text
-  end
-end
diff --git a/db/migrate/20160504112519_add_run_untagged_to_ci_runner.rb b/db/migrate/20160504112519_add_run_untagged_to_ci_runner.rb
deleted file mode 100644
index 03ec29b9951..00000000000
--- a/db/migrate/20160504112519_add_run_untagged_to_ci_runner.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddRunUntaggedToCiRunner < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:ci_runners, :run_untagged, :boolean,
-                            default: true, allow_null: false)
-  end
-
-  def down
-    remove_column(:ci_runners, :run_untagged)
-  end
-end
diff --git a/db/migrate/20160508194200_remove_wall_enabled_from_projects.rb b/db/migrate/20160508194200_remove_wall_enabled_from_projects.rb
deleted file mode 100644
index 4edbeb09f74..00000000000
--- a/db/migrate/20160508194200_remove_wall_enabled_from_projects.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class RemoveWallEnabledFromProjects < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :projects, :wall_enabled, :boolean, default: true, null: false
-  end
-end
diff --git a/db/migrate/20160508202603_add_head_commit_id_to_merge_request_diffs.rb b/db/migrate/20160508202603_add_head_commit_id_to_merge_request_diffs.rb
deleted file mode 100644
index ee7c9326bfe..00000000000
--- a/db/migrate/20160508202603_add_head_commit_id_to_merge_request_diffs.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddHeadCommitIdToMergeRequestDiffs < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_request_diffs, :head_commit_sha, :string
-  end
-end
diff --git a/db/migrate/20160508215820_add_type_to_notes.rb b/db/migrate/20160508215820_add_type_to_notes.rb
deleted file mode 100644
index 343743a589c..00000000000
--- a/db/migrate/20160508215820_add_type_to_notes.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddTypeToNotes < ActiveRecord::Migration[4.2]
-  def change
-    add_column :notes, :type, :string
-  end
-end
diff --git a/db/migrate/20160508215920_add_positions_to_diff_notes.rb b/db/migrate/20160508215920_add_positions_to_diff_notes.rb
deleted file mode 100644
index e0ee03d0fb5..00000000000
--- a/db/migrate/20160508215920_add_positions_to_diff_notes.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class AddPositionsToDiffNotes < ActiveRecord::Migration[4.2]
-  def change
-    add_column :notes, :position, :text
-    add_column :notes, :original_position, :text
-  end
-end
diff --git a/db/migrate/20160508221410_set_type_on_legacy_diff_notes.rb b/db/migrate/20160508221410_set_type_on_legacy_diff_notes.rb
deleted file mode 100644
index 567754d4f4e..00000000000
--- a/db/migrate/20160508221410_set_type_on_legacy_diff_notes.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable all
-class SetTypeOnLegacyDiffNotes < ActiveRecord::Migration[4.2]
-  def change
-    execute "UPDATE notes SET type = 'LegacyDiffNote' WHERE line_code IS NOT NULL"
-  end
-end
diff --git a/db/migrate/20160509091049_add_locked_to_ci_runner.rb b/db/migrate/20160509091049_add_locked_to_ci_runner.rb
deleted file mode 100644
index e19db5a4504..00000000000
--- a/db/migrate/20160509091049_add_locked_to_ci_runner.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddLockedToCiRunner < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:ci_runners, :locked, :boolean,
-                            default: false, allow_null: false)
-  end
-
-  def down
-    remove_column(:ci_runners, :locked)
-  end
-end
diff --git a/db/migrate/20160509201028_add_health_check_access_token_to_application_settings.rb b/db/migrate/20160509201028_add_health_check_access_token_to_application_settings.rb
deleted file mode 100644
index 54d615f7e21..00000000000
--- a/db/migrate/20160509201028_add_health_check_access_token_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddHealthCheckAccessTokenToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :health_check_access_token, :string
-  end
-end
diff --git a/db/migrate/20160516174813_add_send_user_confirmation_email_to_application_settings.rb b/db/migrate/20160516174813_add_send_user_confirmation_email_to_application_settings.rb
deleted file mode 100644
index 9e203b97a43..00000000000
--- a/db/migrate/20160516174813_add_send_user_confirmation_email_to_application_settings.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable all
-class AddSendUserConfirmationEmailToApplicationSettings < ActiveRecord::Migration[4.2]
-  def up
-    add_column :application_settings, :send_user_confirmation_email, :boolean, default: false
-
-    #Sets confirmation email to true by default on existing installations.
-    execute "UPDATE application_settings SET send_user_confirmation_email=true"
-  end
-
-  def down
-    remove_column :application_settings, :send_user_confirmation_email
-  end
-end
diff --git a/db/migrate/20160516224534_add_start_commit_id_to_merge_request_diffs.rb b/db/migrate/20160516224534_add_start_commit_id_to_merge_request_diffs.rb
deleted file mode 100644
index a84bfd64bda..00000000000
--- a/db/migrate/20160516224534_add_start_commit_id_to_merge_request_diffs.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddStartCommitIdToMergeRequestDiffs < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_request_diffs, :start_commit_sha, :string
-  end
-end
diff --git a/db/migrate/20160518200441_add_artifacts_expire_date_to_ci_builds.rb b/db/migrate/20160518200441_add_artifacts_expire_date_to_ci_builds.rb
deleted file mode 100644
index 143b84a1662..00000000000
--- a/db/migrate/20160518200441_add_artifacts_expire_date_to_ci_builds.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddArtifactsExpireDateToCiBuilds < ActiveRecord::Migration[4.2]
-  def change
-    add_column :ci_builds, :artifacts_expire_at, :timestamp
-  end
-end
diff --git a/db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb b/db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb
deleted file mode 100644
index ba0e1654379..00000000000
--- a/db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddDevelopersCanMergeToProtectedBranches < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :protected_branches, :developers_can_merge, :boolean, default: false, allow_null: false
-  end
-
-  def down
-    remove_column :protected_branches, :developers_can_merge
-  end
-end
diff --git a/db/migrate/20160522215720_add_note_type_and_position_to_sent_notification.rb b/db/migrate/20160522215720_add_note_type_and_position_to_sent_notification.rb
deleted file mode 100644
index f569fc7c73f..00000000000
--- a/db/migrate/20160522215720_add_note_type_and_position_to_sent_notification.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddNoteTypeAndPositionToSentNotification < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :sent_notifications, :note_type, :string
-    add_column :sent_notifications, :position, :text
-  end
-end
diff --git a/db/migrate/20160525205328_remove_main_language_from_projects.rb b/db/migrate/20160525205328_remove_main_language_from_projects.rb
deleted file mode 100644
index 81d0fb5b080..00000000000
--- a/db/migrate/20160525205328_remove_main_language_from_projects.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable all
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveMainLanguageFromProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    remove_column :projects, :main_language
-  end
-end
diff --git a/db/migrate/20160527020117_remove_notification_settings_for_deleted_projects.rb b/db/migrate/20160527020117_remove_notification_settings_for_deleted_projects.rb
deleted file mode 100644
index c530c09859d..00000000000
--- a/db/migrate/20160527020117_remove_notification_settings_for_deleted_projects.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class RemoveNotificationSettingsForDeletedProjects < ActiveRecord::Migration[4.2]
-  def up
-    execute <<-SQL
-      DELETE FROM notification_settings
-      WHERE notification_settings.source_type = 'Project'
-        AND NOT EXISTS (
-              SELECT *
-              FROM projects
-              WHERE projects.id = notification_settings.source_id
-            )
-    SQL
-  end
-end
diff --git a/db/migrate/20160528043124_add_users_state_index.rb b/db/migrate/20160528043124_add_users_state_index.rb
deleted file mode 100644
index 3437b35a0c0..00000000000
--- a/db/migrate/20160528043124_add_users_state_index.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddUsersStateIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  def change
-    add_concurrent_index :users, :state
-  end
-end
diff --git a/db/migrate/20160530150109_add_container_registry_token_expire_delay_to_application_settings.rb b/db/migrate/20160530150109_add_container_registry_token_expire_delay_to_application_settings.rb
deleted file mode 100644
index 7b20146e21c..00000000000
--- a/db/migrate/20160530150109_add_container_registry_token_expire_delay_to_application_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# This is ONLINE migration
-
-class AddContainerRegistryTokenExpireDelayToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :application_settings, :container_registry_token_expire_delay, :integer, default: 5
-  end
-end
diff --git a/db/migrate/20160603075128_add_has_external_issue_tracker_to_projects.rb b/db/migrate/20160603075128_add_has_external_issue_tracker_to_projects.rb
deleted file mode 100644
index a7d2d7f9952..00000000000
--- a/db/migrate/20160603075128_add_has_external_issue_tracker_to_projects.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddHasExternalIssueTrackerToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column(:projects, :has_external_issue_tracker, :boolean)
-  end
-end
diff --git a/db/migrate/20160603180330_remove_duplicated_notification_settings.rb b/db/migrate/20160603180330_remove_duplicated_notification_settings.rb
deleted file mode 100644
index 0d8c4bf011c..00000000000
--- a/db/migrate/20160603180330_remove_duplicated_notification_settings.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-class RemoveDuplicatedNotificationSettings < ActiveRecord::Migration[4.2]
-  def up
-    duplicates = exec_query(%Q{
-      SELECT user_id, source_type, source_id
-      FROM notification_settings
-      GROUP BY user_id, source_type, source_id
-      HAVING COUNT(*) > 1
-    })
-
-    duplicates.each do |row|
-      uid = row['user_id']
-      stype = connection.quote(row['source_type'])
-      sid = row['source_id']
-
-      execute(%Q{
-        DELETE FROM notification_settings
-        WHERE user_id = #{uid}
-        AND source_type = #{stype}
-        AND source_id = #{sid}
-        AND id != (
-          SELECT id FROM (
-            SELECT min(id) AS id
-            FROM notification_settings
-            WHERE user_id = #{uid}
-            AND source_type = #{stype}
-            AND source_id = #{sid}
-          ) min_ids
-        )
-      })
-    end
-  end
-end
diff --git a/db/migrate/20160603182247_add_index_to_notification_settings.rb b/db/migrate/20160603182247_add_index_to_notification_settings.rb
deleted file mode 100644
index cea178d555c..00000000000
--- a/db/migrate/20160603182247_add_index_to_notification_settings.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable all
-class AddIndexToNotificationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  def change
-    add_concurrent_index :notification_settings, [:user_id, :source_id, :source_type], { unique: true, name: "index_notifications_on_user_id_and_source_id_and_source_type" }
-  end
-end
diff --git a/db/migrate/20160608155312_add_after_sign_up_text_to_application_settings.rb b/db/migrate/20160608155312_add_after_sign_up_text_to_application_settings.rb
deleted file mode 100644
index 3b3f68529a5..00000000000
--- a/db/migrate/20160608155312_add_after_sign_up_text_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddAfterSignUpTextToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :after_sign_up_text, :text
-  end
-end
diff --git a/db/migrate/20160608195742_add_repository_storage_to_projects.rb b/db/migrate/20160608195742_add_repository_storage_to_projects.rb
deleted file mode 100644
index 2b20c9fbd5f..00000000000
--- a/db/migrate/20160608195742_add_repository_storage_to_projects.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddRepositoryStorageToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:projects, :repository_storage, :string, default: 'default')
-  end
-
-  def down
-    remove_column(:projects, :repository_storage)
-  end
-end
diff --git a/db/migrate/20160608211215_add_user_default_external_to_application_settings.rb b/db/migrate/20160608211215_add_user_default_external_to_application_settings.rb
deleted file mode 100644
index 9b5cfc67d5a..00000000000
--- a/db/migrate/20160608211215_add_user_default_external_to_application_settings.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddUserDefaultExternalToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:application_settings, :user_default_external, :boolean,
-                            default: false, allow_null: false)
-  end
-
-  def down
-    remove_column(:application_settings, :user_default_external)
-  end
-end
diff --git a/db/migrate/20160610140403_remove_notification_setting_not_null_constraints.rb b/db/migrate/20160610140403_remove_notification_setting_not_null_constraints.rb
deleted file mode 100644
index d5301672dc5..00000000000
--- a/db/migrate/20160610140403_remove_notification_setting_not_null_constraints.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class RemoveNotificationSettingNotNullConstraints < ActiveRecord::Migration[4.2]
-  def up
-    change_column :notification_settings, :source_type, :string, null: true
-    change_column :notification_settings, :source_id, :integer, null: true
-  end
-
-  def down
-    change_column :notification_settings, :source_type, :string, null: false
-    change_column :notification_settings, :source_id, :integer, null: false
-  end
-end
diff --git a/db/migrate/20160610194713_remove_deprecated_issues_tracker_columns_from_projects.rb b/db/migrate/20160610194713_remove_deprecated_issues_tracker_columns_from_projects.rb
deleted file mode 100644
index 1ac65997403..00000000000
--- a/db/migrate/20160610194713_remove_deprecated_issues_tracker_columns_from_projects.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-class RemoveDeprecatedIssuesTrackerColumnsFromProjects < ActiveRecord::Migration[4.2]
-  def change
-    remove_column :projects, :issues_tracker, :string, default: 'gitlab', null: false
-    remove_column :projects, :issues_tracker_id, :string
-  end
-end
diff --git a/db/migrate/20160610201627_migrate_users_notification_level.rb b/db/migrate/20160610201627_migrate_users_notification_level.rb
deleted file mode 100644
index 553b7f074f2..00000000000
--- a/db/migrate/20160610201627_migrate_users_notification_level.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class MigrateUsersNotificationLevel < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  # Migrates only users who changed their default notification level :participating
-  # creating a new record on notification settings table
-
-  DOWNTIME = false
-
-  def up
-    execute(%Q{
-      INSERT INTO notification_settings
-      (user_id, level, created_at, updated_at)
-      (SELECT id, notification_level, created_at, updated_at FROM users WHERE notification_level != 1)
-    })
-  end
-
-  # Migrates from notification settings back to user notification_level
-  # If no value is found the default level of 1 will be used
-  def down
-    execute(%Q{
-      UPDATE users u SET
-      notification_level = COALESCE((SELECT level FROM notification_settings WHERE user_id = u.id AND source_type IS NULL), 1)
-    })
-  end
-end
diff --git a/db/migrate/20160610204157_add_deployments.rb b/db/migrate/20160610204157_add_deployments.rb
deleted file mode 100644
index 91b619e7d3d..00000000000
--- a/db/migrate/20160610204157_add_deployments.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-class AddDeployments < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    create_table :deployments, force: true do |t|
-      t.integer  :iid,            null: false
-      t.integer  :project_id,     null: false
-      t.integer  :environment_id, null: false
-      t.string   :ref,            null: false
-      t.boolean  :tag,            null: false
-      t.string   :sha,            null: false
-      t.integer  :user_id
-      t.integer  :deployable_id
-      t.string   :deployable_type
-      t.datetime :created_at
-      t.datetime :updated_at
-    end
-
-    add_index :deployments, :project_id
-    add_index :deployments, [:project_id, :iid], unique: true
-    add_index :deployments, [:project_id, :environment_id]
-    add_index :deployments, [:project_id, :environment_id, :iid]
-  end
-end
diff --git a/db/migrate/20160610204158_add_environments.rb b/db/migrate/20160610204158_add_environments.rb
deleted file mode 100644
index 55fb8b1227b..00000000000
--- a/db/migrate/20160610204158_add_environments.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-class AddEnvironments < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    create_table :environments, force: true do |t|
-      t.integer  :project_id, null: false
-      t.string   :name,       null: false
-      t.datetime :created_at
-      t.datetime :updated_at
-    end
-
-    add_index :environments, [:project_id, :name]
-  end
-end
diff --git a/db/migrate/20160610211845_add_environment_to_builds.rb b/db/migrate/20160610211845_add_environment_to_builds.rb
deleted file mode 100644
index 16d5465cafa..00000000000
--- a/db/migrate/20160610211845_add_environment_to_builds.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddEnvironmentToBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :ci_builds, :environment, :string
-  end
-end
diff --git a/db/migrate/20160610301627_remove_notification_level_from_users.rb b/db/migrate/20160610301627_remove_notification_level_from_users.rb
deleted file mode 100644
index 93f70c476d2..00000000000
--- a/db/migrate/20160610301627_remove_notification_level_from_users.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-class RemoveNotificationLevelFromUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    remove_column :users, :notification_level, :integer
-  end
-end
diff --git a/db/migrate/20160614182521_add_repository_storage_to_application_settings.rb b/db/migrate/20160614182521_add_repository_storage_to_application_settings.rb
deleted file mode 100644
index a1bc0e5cd86..00000000000
--- a/db/migrate/20160614182521_add_repository_storage_to_application_settings.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddRepositoryStorageToApplicationSettings < ActiveRecord::Migration[4.2]
-  def change
-    add_column :application_settings, :repository_storage, :string, default: 'default'
-  end
-end
diff --git a/db/migrate/20160615142710_add_index_on_requested_at_to_members.rb b/db/migrate/20160615142710_add_index_on_requested_at_to_members.rb
deleted file mode 100644
index 1b1dab141f8..00000000000
--- a/db/migrate/20160615142710_add_index_on_requested_at_to_members.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexOnRequestedAtToMembers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :members, :requested_at
-  end
-
-  def down
-    remove_index :members, :requested_at if index_exists? :members, :requested_at
-  end
-end
diff --git a/db/migrate/20160615173316_add_enabled_git_access_protocols_to_application_settings.rb b/db/migrate/20160615173316_add_enabled_git_access_protocols_to_application_settings.rb
deleted file mode 100644
index deb4b86a2fd..00000000000
--- a/db/migrate/20160615173316_add_enabled_git_access_protocols_to_application_settings.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddEnabledGitAccessProtocolsToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :application_settings, :enabled_git_access_protocol, :string
-  end
-end
diff --git a/db/migrate/20160615191922_set_missing_stage_on_ci_builds.rb b/db/migrate/20160615191922_set_missing_stage_on_ci_builds.rb
deleted file mode 100644
index 11d15e7c15f..00000000000
--- a/db/migrate/20160615191922_set_missing_stage_on_ci_builds.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class SetMissingStageOnCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:ci_builds, :stage, :test) do |table, query|
-      query.where(table[:stage].eq(nil))
-    end
-  end
-end
diff --git a/db/migrate/20160616084004_change_project_of_environment.rb b/db/migrate/20160616084004_change_project_of_environment.rb
deleted file mode 100644
index 23914a0325a..00000000000
--- a/db/migrate/20160616084004_change_project_of_environment.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ChangeProjectOfEnvironment < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    change_column_null :environments, :project_id, true
-  end
-end
diff --git a/db/migrate/20160616102642_remove_duplicated_keys.rb b/db/migrate/20160616102642_remove_duplicated_keys.rb
deleted file mode 100644
index 0b896108292..00000000000
--- a/db/migrate/20160616102642_remove_duplicated_keys.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class RemoveDuplicatedKeys < ActiveRecord::Migration[4.2]
-  def up
-    select_all("SELECT fingerprint FROM #{quote_table_name(:keys)} GROUP BY fingerprint HAVING COUNT(*) > 1").each do |row|
-      fingerprint = connection.quote(row['fingerprint'])
-      execute(%Q{
-        DELETE FROM #{quote_table_name(:keys)}
-        WHERE fingerprint = #{fingerprint}
-        AND id != (
-          SELECT id FROM (
-            SELECT max(id) AS id
-            FROM #{quote_table_name(:keys)}
-            WHERE fingerprint = #{fingerprint}
-          ) max_ids
-        )
-      })
-    end
-  end
-end
diff --git a/db/migrate/20160616103005_remove_keys_fingerprint_index_if_exists.rb b/db/migrate/20160616103005_remove_keys_fingerprint_index_if_exists.rb
deleted file mode 100644
index afccc40cc67..00000000000
--- a/db/migrate/20160616103005_remove_keys_fingerprint_index_if_exists.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable RemoveIndex
-class RemoveKeysFingerprintIndexIfExists < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  # https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/250
-  # That MR was added on gitlab-ee so we need to check if the index
-  # already exists because we want to do is create an unique index instead.
-
-  def up
-    if index_exists?(:keys, :fingerprint)
-      remove_index :keys, :fingerprint
-    end
-  end
-
-  def down
-    unless index_exists?(:keys, :fingerprint)
-      add_concurrent_index :keys, :fingerprint
-    end
-  end
-end
diff --git a/db/migrate/20160616103948_add_unique_index_to_keys_fingerprint.rb b/db/migrate/20160616103948_add_unique_index_to_keys_fingerprint.rb
deleted file mode 100644
index d619acad3d0..00000000000
--- a/db/migrate/20160616103948_add_unique_index_to_keys_fingerprint.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddUniqueIndexToKeysFingerprint < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :keys, :fingerprint, unique: true
-  end
-
-  def down
-    remove_index :keys, :fingerprint
-  end
-end
diff --git a/db/migrate/20160617301627_add_events_to_notification_settings.rb b/db/migrate/20160617301627_add_events_to_notification_settings.rb
deleted file mode 100644
index 109817e3d8a..00000000000
--- a/db/migrate/20160617301627_add_events_to_notification_settings.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddEventsToNotificationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :notification_settings, :events, :text
-  end
-end
diff --git a/db/migrate/20160620115026_add_index_on_runners_locked.rb b/db/migrate/20160620115026_add_index_on_runners_locked.rb
deleted file mode 100644
index c619dc07a91..00000000000
--- a/db/migrate/20160620115026_add_index_on_runners_locked.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIndexOnRunnersLocked < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_runners, :locked
-  end
-
-  def down
-    remove_index :ci_runners, :locked if index_exists? :ci_runners, :locked
-  end
-end
diff --git a/db/migrate/20160621123729_add_rebase_commit_sha_to_merge_requests.rb b/db/migrate/20160621123729_add_rebase_commit_sha_to_merge_requests.rb
deleted file mode 100644
index 2d3ab4e2583..00000000000
--- a/db/migrate/20160621123729_add_rebase_commit_sha_to_merge_requests.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# This migration is a duplicate of 20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb
-#
-# We backported this feature from EE using the same migration, but with a new
-# timestamp, which caused an error when the backport was then to be merged back
-# into EE.
-#
-# See discussion at https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/3932
-class AddRebaseCommitShaToMergeRequests < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    unless column_exists?(:merge_requests, :rebase_commit_sha)
-      add_column :merge_requests, :rebase_commit_sha, :string
-    end
-  end
-
-  def down
-    if column_exists?(:merge_requests, :rebase_commit_sha)
-      remove_column :merge_requests, :rebase_commit_sha
-    end
-  end
-end
diff --git a/db/migrate/20160628085157_add_artifacts_size_to_ci_builds.rb b/db/migrate/20160628085157_add_artifacts_size_to_ci_builds.rb
deleted file mode 100644
index 60bd4c36eb6..00000000000
--- a/db/migrate/20160628085157_add_artifacts_size_to_ci_builds.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddArtifactsSizeToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column(:ci_builds, :artifacts_size, :integer)
-  end
-end
diff --git a/db/migrate/20160629025435_add_column_in_progress_merge_commit_sha_to_merge_requests.rb b/db/migrate/20160629025435_add_column_in_progress_merge_commit_sha_to_merge_requests.rb
deleted file mode 100644
index 13e1280b71a..00000000000
--- a/db/migrate/20160629025435_add_column_in_progress_merge_commit_sha_to_merge_requests.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddColumnInProgressMergeCommitShaToMergeRequests < ActiveRecord::Migration[4.2]
-  def change
-    add_column :merge_requests, :in_progress_merge_commit_sha, :string
-  end
-end
diff --git a/db/migrate/20160703180340_add_index_on_award_emoji_user_and_name.rb b/db/migrate/20160703180340_add_index_on_award_emoji_user_and_name.rb
deleted file mode 100644
index 8a576b99de0..00000000000
--- a/db/migrate/20160703180340_add_index_on_award_emoji_user_and_name.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-# rubocop:disable all
-# Migration type: online without errors
-
-class AddIndexOnAwardEmojiUserAndName < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def change
-    add_concurrent_index(:award_emoji, [:user_id, :name])
-  end
-end
diff --git a/db/migrate/20160705054938_add_protected_branches_push_access.rb b/db/migrate/20160705054938_add_protected_branches_push_access.rb
deleted file mode 100644
index 314d90efa90..00000000000
--- a/db/migrate/20160705054938_add_protected_branches_push_access.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/Timestamps
-class AddProtectedBranchesPushAccess < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :protected_branch_push_access_levels do |t|
-      t.references :protected_branch, index: { name: "index_protected_branch_push_access" }, foreign_key: true, null: false
-
-      # Gitlab::Access::MAINTAINER == 40
-      t.integer :access_level, default: 40, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160705054952_add_protected_branches_merge_access.rb b/db/migrate/20160705054952_add_protected_branches_merge_access.rb
deleted file mode 100644
index 672e0e291db..00000000000
--- a/db/migrate/20160705054952_add_protected_branches_merge_access.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/Timestamps
-class AddProtectedBranchesMergeAccess < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :protected_branch_merge_access_levels do |t|
-      t.references :protected_branch, index: { name: "index_protected_branch_merge_access" }, foreign_key: true, null: false
-
-      # Gitlab::Access::MAINTAINER == 40
-      t.integer :access_level, default: 40, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160705055254_move_from_developers_can_merge_to_protected_branches_merge_access.rb b/db/migrate/20160705055254_move_from_developers_can_merge_to_protected_branches_merge_access.rb
deleted file mode 100644
index 1bd462cab06..00000000000
--- a/db/migrate/20160705055254_move_from_developers_can_merge_to_protected_branches_merge_access.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MoveFromDevelopersCanMergeToProtectedBranchesMergeAccess < ActiveRecord::Migration[4.2]
-  DOWNTIME = true
-  DOWNTIME_REASON = <<-HEREDOC
-    We're creating a `merge_access_level` for each `protected_branch`. If a user creates a `protected_branch` while this
-    is running, we might be left with a `protected_branch` _without_ an associated `merge_access_level`. The `protected_branches`
-    table must not change while this is running, so downtime is required.
-
-    https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5081#note_13247410
-  HEREDOC
-
-  def up
-    execute <<-HEREDOC
-      INSERT into protected_branch_merge_access_levels (protected_branch_id, access_level, created_at, updated_at)
-        SELECT id, (CASE WHEN developers_can_merge THEN 30 ELSE 40 END), now(), now()
-          FROM protected_branches
-    HEREDOC
-  end
-
-  def down
-    execute <<-HEREDOC
-      UPDATE protected_branches SET developers_can_merge = TRUE
-        WHERE id IN (SELECT protected_branch_id FROM protected_branch_merge_access_levels
-                       WHERE access_level = 30);
-    HEREDOC
-  end
-end
diff --git a/db/migrate/20160705055308_move_from_developers_can_push_to_protected_branches_push_access.rb b/db/migrate/20160705055308_move_from_developers_can_push_to_protected_branches_push_access.rb
deleted file mode 100644
index d480dac777a..00000000000
--- a/db/migrate/20160705055308_move_from_developers_can_push_to_protected_branches_push_access.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MoveFromDevelopersCanPushToProtectedBranchesPushAccess < ActiveRecord::Migration[4.2]
-  DOWNTIME = true
-  DOWNTIME_REASON = <<-HEREDOC
-    We're creating a `push_access_level` for each `protected_branch`. If a user creates a `protected_branch` while this
-    is running, we might be left with a `protected_branch` _without_ an associated `push_access_level`. The `protected_branches`
-    table must not change while this is running, so downtime is required.
-
-    https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5081#note_13247410
-  HEREDOC
-
-  def up
-    execute <<-HEREDOC
-      INSERT into protected_branch_push_access_levels (protected_branch_id, access_level, created_at, updated_at)
-        SELECT id, (CASE WHEN developers_can_push THEN 30 ELSE 40 END), now(), now()
-          FROM protected_branches
-    HEREDOC
-  end
-
-  def down
-    execute <<-HEREDOC
-      UPDATE protected_branches SET developers_can_push = TRUE
-        WHERE id IN (SELECT protected_branch_id FROM protected_branch_push_access_levels
-                       WHERE access_level = 30);
-    HEREDOC
-  end
-end
diff --git a/db/migrate/20160705055809_remove_developers_can_push_from_protected_branches.rb b/db/migrate/20160705055809_remove_developers_can_push_from_protected_branches.rb
deleted file mode 100644
index e5c9da072cf..00000000000
--- a/db/migrate/20160705055809_remove_developers_can_push_from_protected_branches.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveDevelopersCanPushFromProtectedBranches < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # This is only required for `#down`
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    remove_column :protected_branches, :developers_can_push, :boolean
-  end
-
-  def down
-    add_column_with_default(:protected_branches, :developers_can_push, :boolean, default: false, allow_null: false)
-  end
-end
diff --git a/db/migrate/20160705055813_remove_developers_can_merge_from_protected_branches.rb b/db/migrate/20160705055813_remove_developers_can_merge_from_protected_branches.rb
deleted file mode 100644
index 2a623b55839..00000000000
--- a/db/migrate/20160705055813_remove_developers_can_merge_from_protected_branches.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveDevelopersCanMergeFromProtectedBranches < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # This is only required for `#down`
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    remove_column :protected_branches, :developers_can_merge, :boolean
-  end
-
-  def down
-    add_column_with_default(:protected_branches, :developers_can_merge, :boolean, default: false, allow_null: false)
-  end
-end
diff --git a/db/migrate/20160705163108_remove_requesters_that_are_owners.rb b/db/migrate/20160705163108_remove_requesters_that_are_owners.rb
deleted file mode 100644
index 449c67e1b6a..00000000000
--- a/db/migrate/20160705163108_remove_requesters_that_are_owners.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-class RemoveRequestersThatAreOwners < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def up
-    # Delete requesters that are owner of their projects and actually requested
-    # access to it
-    execute <<-SQL
-      DELETE FROM members
-      WHERE members.source_type = 'Project'
-      AND members.type = 'ProjectMember'
-      AND members.requested_at IS NOT NULL
-      AND members.user_id = (
-        SELECT namespaces.owner_id
-        FROM namespaces
-        JOIN projects ON namespaces.id = projects.namespace_id
-        WHERE namespaces.type IS NULL
-        AND projects.id = members.source_id
-        AND namespaces.owner_id = members.user_id);
-    SQL
-
-    # Delete requesters that are owner of their project's group and actually requested
-    # access to it
-    execute <<-SQL
-      DELETE FROM members
-      WHERE members.source_type = 'Project'
-      AND members.type = 'ProjectMember'
-      AND members.requested_at IS NOT NULL
-      AND members.user_id = (
-        SELECT namespaces.owner_id
-        FROM namespaces
-        JOIN projects ON namespaces.id = projects.namespace_id
-        WHERE namespaces.type = 'Group'
-        AND projects.id = members.source_id
-        AND namespaces.owner_id = members.user_id);
-    SQL
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20160707104333_add_lock_to_issuables.rb b/db/migrate/20160707104333_add_lock_to_issuables.rb
deleted file mode 100644
index fdc3abf46cc..00000000000
--- a/db/migrate/20160707104333_add_lock_to_issuables.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLockToIssuables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    add_column :issues, :lock_version, :integer
-    add_column :merge_requests, :lock_version, :integer
-  end
-
-  def down
-    remove_column :issues, :lock_version
-    remove_column :merge_requests, :lock_version
-  end
-end
diff --git a/db/migrate/20160712171823_remove_award_emojis_with_no_user.rb b/db/migrate/20160712171823_remove_award_emojis_with_no_user.rb
deleted file mode 100644
index 0b553182a81..00000000000
--- a/db/migrate/20160712171823_remove_award_emojis_with_no_user.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveAwardEmojisWithNoUser < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def up
-    AwardEmoji.joins('LEFT JOIN users ON users.id = user_id').where('users.id IS NULL').destroy_all # rubocop: disable DestroyAll
-  end
-end
diff --git a/db/migrate/20160713200638_add_repository_read_only_to_projects.rb b/db/migrate/20160713200638_add_repository_read_only_to_projects.rb
deleted file mode 100644
index ba61bc8cbb0..00000000000
--- a/db/migrate/20160713200638_add_repository_read_only_to_projects.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRepositoryReadOnlyToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :projects, :repository_read_only, :boolean
-  end
-end
diff --git a/db/migrate/20160713205315_add_domain_blacklist_to_application_settings.rb b/db/migrate/20160713205315_add_domain_blacklist_to_application_settings.rb
deleted file mode 100644
index 4b9ac12253e..00000000000
--- a/db/migrate/20160713205315_add_domain_blacklist_to_application_settings.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/SaferBooleanColumn
-class AddDomainBlacklistToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :application_settings, :domain_blacklist_enabled, :boolean, default: false
-    add_column :application_settings, :domain_blacklist, :text
-  end
-end
diff --git a/db/migrate/20160713222618_add_usage_ping_to_application_settings.rb b/db/migrate/20160713222618_add_usage_ping_to_application_settings.rb
deleted file mode 100644
index 7ef02316338..00000000000
--- a/db/migrate/20160713222618_add_usage_ping_to_application_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddUsagePingToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :usage_ping_enabled, :boolean, default: true, null: false
-  end
-end
diff --git a/db/migrate/20160715132507_add_user_id_to_pipeline.rb b/db/migrate/20160715132507_add_user_id_to_pipeline.rb
deleted file mode 100644
index b1e22b1c2bb..00000000000
--- a/db/migrate/20160715132507_add_user_id_to_pipeline.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddUserIdToPipeline < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :ci_commits, :user_id, :integer
-  end
-end
diff --git a/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb b/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb
deleted file mode 100644
index 8e7ac86a8b7..00000000000
--- a/db/migrate/20160715134306_add_index_for_pipeline_user_id.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexForPipelineUserId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_commits, :user_id
-  end
-
-  def down
-    remove_index :ci_commits, :user_id if index_exists? :ci_commits, :user_id
-  end
-end
diff --git a/db/migrate/20160715154212_add_request_access_enabled_to_projects.rb b/db/migrate/20160715154212_add_request_access_enabled_to_projects.rb
deleted file mode 100644
index 96260f5fd55..00000000000
--- a/db/migrate/20160715154212_add_request_access_enabled_to_projects.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddRequestAccessEnabledToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :projects, :request_access_enabled, :boolean, default: true
-  end
-
-  def down
-    remove_column :projects, :request_access_enabled
-  end
-end
diff --git a/db/migrate/20160715204316_add_request_access_enabled_to_groups.rb b/db/migrate/20160715204316_add_request_access_enabled_to_groups.rb
deleted file mode 100644
index 14065434523..00000000000
--- a/db/migrate/20160715204316_add_request_access_enabled_to_groups.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddRequestAccessEnabledToGroups < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :namespaces, :request_access_enabled, :boolean, default: true
-  end
-
-  def down
-    remove_column :namespaces, :request_access_enabled
-  end
-end
diff --git a/db/migrate/20160715230841_rename_application_settings_restricted_signup_domains.rb b/db/migrate/20160715230841_rename_application_settings_restricted_signup_domains.rb
deleted file mode 100644
index 6a2674fb604..00000000000
--- a/db/migrate/20160715230841_rename_application_settings_restricted_signup_domains.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameApplicationSettingsRestrictedSignupDomains < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    rename_column :application_settings, :restricted_signup_domains, :domain_whitelist
-  end
-end
diff --git a/db/migrate/20160716115710_add_when_and_yaml_variables_to_ci_builds.rb b/db/migrate/20160716115710_add_when_and_yaml_variables_to_ci_builds.rb
deleted file mode 100644
index d403b0a3cc9..00000000000
--- a/db/migrate/20160716115710_add_when_and_yaml_variables_to_ci_builds.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class AddWhenAndYamlVariablesToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :ci_builds, :when, :string
-    add_column :ci_builds, :yaml_variables, :text
-  end
-end
diff --git a/db/migrate/20160716115711_add_queued_at_to_ci_builds.rb b/db/migrate/20160716115711_add_queued_at_to_ci_builds.rb
deleted file mode 100644
index 2bb9a30e3a3..00000000000
--- a/db/migrate/20160716115711_add_queued_at_to_ci_builds.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddQueuedAtToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :queued_at, :timestamp
-  end
-end
diff --git a/db/migrate/20160718153603_add_has_external_wiki_to_projects.rb b/db/migrate/20160718153603_add_has_external_wiki_to_projects.rb
deleted file mode 100644
index e3e4afaf512..00000000000
--- a/db/migrate/20160718153603_add_has_external_wiki_to_projects.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddHasExternalWikiToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  def change
-    add_column :projects, :has_external_wiki, :boolean
-  end
-end
diff --git a/db/migrate/20160721081015_drop_and_readd_has_external_wiki_in_projects.rb b/db/migrate/20160721081015_drop_and_readd_has_external_wiki_in_projects.rb
deleted file mode 100644
index d31bbb22392..00000000000
--- a/db/migrate/20160721081015_drop_and_readd_has_external_wiki_in_projects.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class DropAndReaddHasExternalWikiInProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:projects, :has_external_wiki, nil) do |table, query|
-      query.where(table[:has_external_wiki].not_eq(nil))
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20160722221922_nullify_blank_type_on_notes.rb b/db/migrate/20160722221922_nullify_blank_type_on_notes.rb
deleted file mode 100644
index 83ca5c1e6ec..00000000000
--- a/db/migrate/20160722221922_nullify_blank_type_on_notes.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class NullifyBlankTypeOnNotes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    execute "UPDATE notes SET type = NULL WHERE type = ''"
-  end
-end
diff --git a/db/migrate/20160724205507_add_resolved_to_notes.rb b/db/migrate/20160724205507_add_resolved_to_notes.rb
deleted file mode 100644
index fc56d3b1452..00000000000
--- a/db/migrate/20160724205507_add_resolved_to_notes.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddResolvedToNotes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :notes, :resolved_at, :datetime
-    add_column :notes, :resolved_by_id, :integer
-  end
-end
diff --git a/db/migrate/20160725083350_add_external_url_to_enviroments.rb b/db/migrate/20160725083350_add_external_url_to_enviroments.rb
deleted file mode 100644
index e060c6a8499..00000000000
--- a/db/migrate/20160725083350_add_external_url_to_enviroments.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddExternalUrlToEnviroments < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column(:environments, :external_url, :string)
-  end
-end
diff --git a/db/migrate/20160725104020_merge_request_diff_remove_uniq.rb b/db/migrate/20160725104020_merge_request_diff_remove_uniq.rb
deleted file mode 100644
index d8b4696a246..00000000000
--- a/db/migrate/20160725104020_merge_request_diff_remove_uniq.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class MergeRequestDiffRemoveUniq < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    constraint_name = 'merge_request_diffs_merge_request_id_key'
-
-    transaction do
-      if index_exists?(:merge_request_diffs, :merge_request_id)
-        remove_index(:merge_request_diffs, :merge_request_id)
-      end
-
-      # In some bizarre cases PostgreSQL might have a separate unique constraint
-      # that we'll need to drop.
-      if constraint_exists?(constraint_name) && Gitlab::Database.postgresql?
-        execute("ALTER TABLE merge_request_diffs DROP CONSTRAINT IF EXISTS #{constraint_name};")
-      end
-    end
-  end
-
-  def down
-    unless index_exists?(:merge_request_diffs, :merge_request_id)
-      add_concurrent_index(:merge_request_diffs, :merge_request_id, unique: true)
-    end
-  end
-
-  def constraint_exists?(name)
-    indexes(:merge_request_diffs).map(&:name).include?(name)
-  end
-end
diff --git a/db/migrate/20160725104452_merge_request_diff_add_index.rb b/db/migrate/20160725104452_merge_request_diff_add_index.rb
deleted file mode 100644
index d3369b3f961..00000000000
--- a/db/migrate/20160725104452_merge_request_diff_add_index.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable RemoveIndex
-class MergeRequestDiffAddIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    add_concurrent_index :merge_request_diffs, :merge_request_id
-  end
-
-  def down
-    if index_exists?(:merge_request_diffs, :merge_request_id)
-      remove_index :merge_request_diffs, :merge_request_id
-    end
-  end
-end
diff --git a/db/migrate/20160727163552_create_user_agent_details.rb b/db/migrate/20160727163552_create_user_agent_details.rb
deleted file mode 100644
index 6ef54deca90..00000000000
--- a/db/migrate/20160727163552_create_user_agent_details.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateUserAgentDetails < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    create_table :user_agent_details do |t|
-      t.string :user_agent, null: false
-      t.string :ip_address, null: false
-      t.integer :subject_id, null: false
-      t.string :subject_type, null: false
-      t.boolean :submitted, default: false, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160727191041_create_boards.rb b/db/migrate/20160727191041_create_boards.rb
deleted file mode 100644
index 60ed5508b10..00000000000
--- a/db/migrate/20160727191041_create_boards.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateBoards < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :boards do |t|
-      t.references :project, index: true, foreign_key: true, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160727193336_create_lists.rb b/db/migrate/20160727193336_create_lists.rb
deleted file mode 100644
index 4591c9a120f..00000000000
--- a/db/migrate/20160727193336_create_lists.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateLists < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :lists do |t|
-      t.references :board, index: true, foreign_key: true, null: false
-      t.references :label, index: true, foreign_key: true
-      t.integer :list_type, null: false, default: 1
-      t.integer :position
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160728081025_add_pipeline_events_to_web_hooks.rb b/db/migrate/20160728081025_add_pipeline_events_to_web_hooks.rb
deleted file mode 100644
index fc3e9f03c74..00000000000
--- a/db/migrate/20160728081025_add_pipeline_events_to_web_hooks.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class AddPipelineEventsToWebHooks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:web_hooks, :pipeline_events, :boolean,
-                            default: false, allow_null: false)
-  end
-
-  def down
-    remove_column(:web_hooks, :pipeline_events)
-  end
-end
diff --git a/db/migrate/20160728103734_add_pipeline_events_to_services.rb b/db/migrate/20160728103734_add_pipeline_events_to_services.rb
deleted file mode 100644
index 421859ff5fd..00000000000
--- a/db/migrate/20160728103734_add_pipeline_events_to_services.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class AddPipelineEventsToServices < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:services, :pipeline_events, :boolean,
-                            default: false, allow_null: false)
-  end
-
-  def down
-    remove_column(:services, :pipeline_events)
-  end
-end
diff --git a/db/migrate/20160729173930_remove_project_id_from_spam_logs.rb b/db/migrate/20160729173930_remove_project_id_from_spam_logs.rb
deleted file mode 100644
index 02e417e376f..00000000000
--- a/db/migrate/20160729173930_remove_project_id_from_spam_logs.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveProjectIdFromSpamLogs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Removing a column that contains data that is not used anywhere.'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    remove_column :spam_logs, :project_id, :integer
-  end
-end
diff --git a/db/migrate/20160801163421_add_expires_at_to_member.rb b/db/migrate/20160801163421_add_expires_at_to_member.rb
deleted file mode 100644
index 13ca1d04658..00000000000
--- a/db/migrate/20160801163421_add_expires_at_to_member.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddExpiresAtToMember < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :members, :expires_at, :date
-  end
-end
diff --git a/db/migrate/20160801163709_add_submitted_as_ham_to_spam_logs.rb b/db/migrate/20160801163709_add_submitted_as_ham_to_spam_logs.rb
deleted file mode 100644
index fde9dee980e..00000000000
--- a/db/migrate/20160801163709_add_submitted_as_ham_to_spam_logs.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddSubmittedAsHamToSpamLogs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :spam_logs, :submitted_as_ham, :boolean, default: false
-  end
-
-  def down
-    remove_column :spam_logs, :submitted_as_ham
-  end
-end
diff --git a/db/migrate/20160802010328_remove_builds_enable_index_on_projects.rb b/db/migrate/20160802010328_remove_builds_enable_index_on_projects.rb
deleted file mode 100644
index 4ad740e0812..00000000000
--- a/db/migrate/20160802010328_remove_builds_enable_index_on_projects.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable RemoveIndex
-class RemoveBuildsEnableIndexOnProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_index :projects, column: :builds_enabled if index_exists?(:projects, :builds_enabled)
-  end
-end
diff --git a/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb b/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb
deleted file mode 100644
index f866fe15ec1..00000000000
--- a/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddUniqueIndexToListsLabelId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :lists, [:board_id, :label_id], unique: true
-  end
-
-  def down
-    remove_index :lists, column: [:board_id, :label_id] if index_exists?(:lists, [:board_id, :label_id], unique: true)
-  end
-end
diff --git a/db/migrate/20160804142904_add_ci_config_file_to_project.rb b/db/migrate/20160804142904_add_ci_config_file_to_project.rb
deleted file mode 100644
index abd94e63db3..00000000000
--- a/db/migrate/20160804142904_add_ci_config_file_to_project.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddCiConfigFileToProject < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :projects, :ci_config_path, :string
-  end
-
-  def down
-    remove_column :projects, :ci_config_path
-  end
-end
diff --git a/db/migrate/20160804150737_add_timestamps_to_members_again.rb b/db/migrate/20160804150737_add_timestamps_to_members_again.rb
deleted file mode 100644
index 4e71197b8e7..00000000000
--- a/db/migrate/20160804150737_add_timestamps_to_members_again.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# rubocop:disable all
-# 20141121133009_add_timestamps_to_members.rb was meant to ensure that all
-# rows in the members table had created_at and updated_at set, following an
-# error in a previous migration. This failed to set all rows in at least one
-# case: https://gitlab.com/gitlab-org/gitlab-ce/issues/20568
-#
-# Why this happened is lost in the mists of time, so repeat the SQL query
-# without speculation, just in case more than one person was affected.
-class AddTimestampsToMembersAgain < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    execute "UPDATE members SET created_at = NOW() WHERE created_at IS NULL"
-    execute "UPDATE members SET updated_at = NOW() WHERE updated_at IS NULL"
-  end
-
-  def down
-    # no change
-  end
-
-end
diff --git a/db/migrate/20160805041956_add_deleted_at_to_namespaces.rb b/db/migrate/20160805041956_add_deleted_at_to_namespaces.rb
deleted file mode 100644
index a0dfa3259ec..00000000000
--- a/db/migrate/20160805041956_add_deleted_at_to_namespaces.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# rubocop:disable Migration/Datetime
-# rubocop:disable RemoveIndex
-class AddDeletedAtToNamespaces < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :namespaces, :deleted_at, :datetime
-
-    add_concurrent_index :namespaces, :deleted_at
-  end
-
-  def down
-    remove_index :namespaces, :deleted_at if index_exists? :namespaces, :deleted_at
-
-    remove_column :namespaces, :deleted_at
-  end
-end
diff --git a/db/migrate/20160808085531_add_token_to_build.rb b/db/migrate/20160808085531_add_token_to_build.rb
deleted file mode 100644
index a1d8945a538..00000000000
--- a/db/migrate/20160808085531_add_token_to_build.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class AddTokenToBuild < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :token, :string
-  end
-end
diff --git a/db/migrate/20160808085602_add_index_for_build_token.rb b/db/migrate/20160808085602_add_index_for_build_token.rb
deleted file mode 100644
index 22d50e4165a..00000000000
--- a/db/migrate/20160808085602_add_index_for_build_token.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexForBuildToken < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_builds, :token, unique: true
-  end
-
-  def down
-    remove_index :ci_builds, :token, unique: true if index_exists? :ci_builds, :token, unique: true
-  end
-end
diff --git a/db/migrate/20160810102349_remove_ci_runner_trigram_indexes.rb b/db/migrate/20160810102349_remove_ci_runner_trigram_indexes.rb
deleted file mode 100644
index 738b93912b6..00000000000
--- a/db/migrate/20160810102349_remove_ci_runner_trigram_indexes.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveCiRunnerTrigramIndexes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  # Disabled for the "down" method so the indexes can be re-created concurrently.
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    transaction do
-      execute 'DROP INDEX IF EXISTS index_ci_runners_on_token_trigram;'
-      execute 'DROP INDEX IF EXISTS index_ci_runners_on_description_trigram;'
-    end
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    execute 'CREATE INDEX CONCURRENTLY index_ci_runners_on_token_trigram ON ci_runners USING gin(token gin_trgm_ops);'
-    execute 'CREATE INDEX CONCURRENTLY index_ci_runners_on_description_trigram ON ci_runners USING gin(description gin_trgm_ops);'
-  end
-end
diff --git a/db/migrate/20160810142633_remove_redundant_indexes.rb b/db/migrate/20160810142633_remove_redundant_indexes.rb
deleted file mode 100644
index 91f82cf9afa..00000000000
--- a/db/migrate/20160810142633_remove_redundant_indexes.rb
+++ /dev/null
@@ -1,113 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class RemoveRedundantIndexes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    indexes = [
-      [:ci_taggings, 'ci_taggings_idx'],
-      [:audit_events, 'index_audit_events_on_author_id'],
-      [:audit_events, 'index_audit_events_on_type'],
-      [:ci_builds, 'index_ci_builds_on_erased_by_id'],
-      [:ci_builds, 'index_ci_builds_on_project_id_and_commit_id'],
-      [:ci_builds, 'index_ci_builds_on_type'],
-      [:ci_commits, 'index_ci_commits_on_project_id'],
-      [:ci_commits, 'index_ci_commits_on_project_id_and_committed_at'],
-      [:ci_commits, 'index_ci_commits_on_project_id_and_committed_at_and_id'],
-      [:ci_commits, 'index_ci_commits_on_project_id_and_sha'],
-      [:ci_commits, 'index_ci_commits_on_sha'],
-      [:ci_events, 'index_ci_events_on_created_at'],
-      [:ci_events, 'index_ci_events_on_is_admin'],
-      [:ci_events, 'index_ci_events_on_project_id'],
-      [:ci_jobs, 'index_ci_jobs_on_deleted_at'],
-      [:ci_jobs, 'index_ci_jobs_on_project_id'],
-      [:ci_projects, 'index_ci_projects_on_gitlab_id'],
-      [:ci_projects, 'index_ci_projects_on_shared_runners_enabled'],
-      [:ci_services, 'index_ci_services_on_project_id'],
-      [:ci_sessions, 'index_ci_sessions_on_session_id'],
-      [:ci_sessions, 'index_ci_sessions_on_updated_at'],
-      [:ci_tags, 'index_ci_tags_on_name'],
-      [:ci_triggers, 'index_ci_triggers_on_deleted_at'],
-      [:identities, 'index_identities_on_created_at_and_id'],
-      [:issues, 'index_issues_on_title'],
-      [:keys, 'index_keys_on_created_at_and_id'],
-      [:members, 'index_members_on_created_at_and_id'],
-      [:members, 'index_members_on_type'],
-      [:milestones, 'index_milestones_on_created_at_and_id'],
-      [:namespaces, 'index_namespaces_on_visibility_level'],
-      [:projects, 'index_projects_on_builds_enabled_and_shared_runners_enabled'],
-      [:services, 'index_services_on_category'],
-      [:services, 'index_services_on_created_at_and_id'],
-      [:services, 'index_services_on_default'],
-      [:snippets, 'index_snippets_on_created_at'],
-      [:snippets, 'index_snippets_on_created_at_and_id'],
-      [:todos, 'index_todos_on_state'],
-      [:web_hooks, 'index_web_hooks_on_created_at_and_id'],
-
-      # These indexes _may_ be used but they can be replaced by other existing
-      # indexes.
-
-      # There's already a composite index on (project_id, iid) which means that
-      # a separate index for _just_ project_id is not needed.
-      [:issues, 'index_issues_on_project_id'],
-
-      # These are all composite indexes for the columns (created_at, id). In all
-      # these cases there's already a standalone index for "created_at" which
-      # can be used instead.
-      #
-      # Because the "id" column of these composite indexes is never needed (due
-      # to "id" already being indexed as its a primary key) these composite
-      # indexes are useless.
-      [:issues, 'index_issues_on_created_at_and_id'],
-      [:merge_requests, 'index_merge_requests_on_created_at_and_id'],
-      [:namespaces, 'index_namespaces_on_created_at_and_id'],
-      [:notes, 'index_notes_on_created_at_and_id'],
-      [:projects, 'index_projects_on_created_at_and_id'],
-      [:users, 'index_users_on_created_at_and_id']
-    ]
-
-    transaction do
-      indexes.each do |(table, index)|
-        remove_index(table, name: index) if index_exists_by_name?(table, index)
-      end
-    end
-
-    add_concurrent_index(:users, :created_at)
-    add_concurrent_index(:projects, :created_at)
-    add_concurrent_index(:namespaces, :created_at)
-  end
-
-  def down
-    # We're only restoring the composite indexes that could be replaced with
-    # individual ones, just in case somebody would ever want to revert.
-    transaction do
-      remove_index(:users, :created_at)
-      remove_index(:projects, :created_at)
-      remove_index(:namespaces, :created_at)
-    end
-
-    [:issues, :merge_requests, :namespaces, :notes, :projects, :users].each do |table|
-      add_concurrent_index(table, [:created_at, :id],
-                           name: "index_#{table}_on_created_at_and_id")
-    end
-  end
-
-  # Rails' index_exists? doesn't work when you only give it a table and index
-  # name. As such we have to use some extra code to check if an index exists for
-  # a given name.
-  def index_exists_by_name?(table, index)
-    indexes_for_table[table].include?(index)
-  end
-
-  def indexes_for_table
-    @indexes_for_table ||= Hash.new do |hash, table_name|
-      hash[table_name] = indexes(table_name).map(&:name)
-    end
-  end
-end
diff --git a/db/migrate/20160811172945_add_can_push_to_keys.rb b/db/migrate/20160811172945_add_can_push_to_keys.rb
deleted file mode 100644
index 2e78ab0249e..00000000000
--- a/db/migrate/20160811172945_add_can_push_to_keys.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class AddCanPushToKeys < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:keys, :can_push, :boolean, default: false, allow_null: false)
-  end
-
-  def down
-    remove_column(:keys, :can_push)
-  end
-end
diff --git a/db/migrate/20160816161312_add_column_name_to_u2f_registrations.rb b/db/migrate/20160816161312_add_column_name_to_u2f_registrations.rb
deleted file mode 100644
index 76b60787323..00000000000
--- a/db/migrate/20160816161312_add_column_name_to_u2f_registrations.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddColumnNameToU2fRegistrations < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :u2f_registrations, :name, :string
-  end
-end
diff --git a/db/migrate/20160817133006_add_koding_to_application_settings.rb b/db/migrate/20160817133006_add_koding_to_application_settings.rb
deleted file mode 100644
index 04f9d7be29b..00000000000
--- a/db/migrate/20160817133006_add_koding_to_application_settings.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-# rubocop:disable Migration/SaferBooleanColumn
-class AddKodingToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :koding_enabled, :boolean
-    add_column :application_settings, :koding_url, :string
-  end
-end
diff --git a/db/migrate/20160817154936_add_discussion_ids_to_notes.rb b/db/migrate/20160817154936_add_discussion_ids_to_notes.rb
deleted file mode 100644
index e735eeadac5..00000000000
--- a/db/migrate/20160817154936_add_discussion_ids_to_notes.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddDiscussionIdsToNotes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :notes, :discussion_id, :string
-    add_column :notes, :original_discussion_id, :string
-  end
-end
diff --git a/db/migrate/20160818205718_add_expires_at_to_project_group_links.rb b/db/migrate/20160818205718_add_expires_at_to_project_group_links.rb
deleted file mode 100644
index 06f621c6c2e..00000000000
--- a/db/migrate/20160818205718_add_expires_at_to_project_group_links.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddExpiresAtToProjectGroupLinks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :project_group_links, :expires_at, :date
-  end
-end
diff --git a/db/migrate/20160819221631_add_index_to_note_discussion_id.rb b/db/migrate/20160819221631_add_index_to_note_discussion_id.rb
deleted file mode 100644
index 1dbc0474fd2..00000000000
--- a/db/migrate/20160819221631_add_index_to_note_discussion_id.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIndexToNoteDiscussionId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :notes, :discussion_id
-  end
-
-  def down
-    remove_index :notes, :discussion_id if index_exists? :notes, :discussion_id
-  end
-end
diff --git a/db/migrate/20160819221833_reset_diff_note_discussion_id_because_it_was_calculated_wrongly.rb b/db/migrate/20160819221833_reset_diff_note_discussion_id_because_it_was_calculated_wrongly.rb
deleted file mode 100644
index 61f593a52c5..00000000000
--- a/db/migrate/20160819221833_reset_diff_note_discussion_id_because_it_was_calculated_wrongly.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ResetDiffNoteDiscussionIdBecauseItWasCalculatedWrongly < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    execute "UPDATE notes SET discussion_id = NULL WHERE discussion_id IS NOT NULL AND type = 'DiffNote'"
-  end
-end
diff --git a/db/migrate/20160819232256_add_incoming_email_token_to_users.rb b/db/migrate/20160819232256_add_incoming_email_token_to_users.rb
deleted file mode 100644
index 0a7190f632d..00000000000
--- a/db/migrate/20160819232256_add_incoming_email_token_to_users.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIncomingEmailTokenToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :users, :incoming_email_token, :string
-
-    add_concurrent_index :users, :incoming_email_token
-  end
-
-  def down
-    remove_index :users, :incoming_email_token if index_exists? :users, :incoming_email_token
-
-    remove_column :users, :incoming_email_token
-  end
-end
diff --git a/db/migrate/20160823081327_change_merge_error_to_text.rb b/db/migrate/20160823081327_change_merge_error_to_text.rb
deleted file mode 100644
index 23b4f35a776..00000000000
--- a/db/migrate/20160823081327_change_merge_error_to_text.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class ChangeMergeErrorToText < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration requires downtime because it alters a column from varchar(255) to text.'
-
-  def change
-    change_column :merge_requests, :merge_error, :text, limit: 65535
-  end
-end
diff --git a/db/migrate/20160823083941_add_column_scopes_to_personal_access_tokens.rb b/db/migrate/20160823083941_add_column_scopes_to_personal_access_tokens.rb
deleted file mode 100644
index 4c320123088..00000000000
--- a/db/migrate/20160823083941_add_column_scopes_to_personal_access_tokens.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# The default needs to be `[]`, but all existing access tokens need to have `scopes` set to `['api']`.
-# It's easier to achieve this by adding the column with the `['api']` default, and then changing the default to
-# `[]`.
-
-class AddColumnScopesToPersonalAccessTokens < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :personal_access_tokens, :scopes, :string, default: ['api'].to_yaml
-  end
-
-  def down
-    remove_column :personal_access_tokens, :scopes
-  end
-end
diff --git a/db/migrate/20160823213309_add_lfs_enabled_to_projects.rb b/db/migrate/20160823213309_add_lfs_enabled_to_projects.rb
deleted file mode 100644
index 87e6e8b6945..00000000000
--- a/db/migrate/20160823213309_add_lfs_enabled_to_projects.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLfsEnabledToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :projects, :lfs_enabled, :boolean
-  end
-end
diff --git a/db/migrate/20160824103857_drop_unused_ci_tables.rb b/db/migrate/20160824103857_drop_unused_ci_tables.rb
deleted file mode 100644
index 8a207683848..00000000000
--- a/db/migrate/20160824103857_drop_unused_ci_tables.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class DropUnusedCiTables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    drop_table(:ci_services)
-    drop_table(:ci_web_hooks)
-  end
-end
diff --git a/db/migrate/20160824124900_add_table_issue_metrics.rb b/db/migrate/20160824124900_add_table_issue_metrics.rb
deleted file mode 100644
index 4f34f377e22..00000000000
--- a/db/migrate/20160824124900_add_table_issue_metrics.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-# rubocop:disable Migration/Timestamps
-class AddTableIssueMetrics < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Adding foreign key'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    create_table :issue_metrics do |t|
-      t.references :issue, index: { name: "index_issue_metrics" }, foreign_key: { on_delete: :cascade }, null: false
-
-      t.datetime 'first_mentioned_in_commit_at'
-      t.datetime 'first_associated_with_milestone_at'
-      t.datetime 'first_added_to_board_at'
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160825052008_add_table_merge_request_metrics.rb b/db/migrate/20160825052008_add_table_merge_request_metrics.rb
deleted file mode 100644
index 150f698869d..00000000000
--- a/db/migrate/20160825052008_add_table_merge_request_metrics.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-# rubocop:disable Migration/Timestamps
-class AddTableMergeRequestMetrics < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Adding foreign key'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    create_table :merge_request_metrics do |t|
-      t.references :merge_request, index: { name: "index_merge_request_metrics" }, foreign_key: { on_delete: :cascade }, null: false
-
-      t.datetime 'latest_build_started_at'
-      t.datetime 'latest_build_finished_at'
-      t.datetime 'first_deployed_to_production_at', index: true
-      t.datetime 'merged_at'
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160827011312_ensure_lock_version_has_no_default.rb b/db/migrate/20160827011312_ensure_lock_version_has_no_default.rb
deleted file mode 100644
index 18c0f0be3eb..00000000000
--- a/db/migrate/20160827011312_ensure_lock_version_has_no_default.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class EnsureLockVersionHasNoDefault < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    change_column_default :issues, :lock_version, nil
-    change_column_default :merge_requests, :lock_version, nil
-
-    execute('UPDATE issues SET lock_version = 1 WHERE lock_version = 0')
-    execute('UPDATE merge_requests SET lock_version = 1 WHERE lock_version = 0')
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20160829114652_add_markdown_cache_columns.rb b/db/migrate/20160829114652_add_markdown_cache_columns.rb
deleted file mode 100644
index b1c5e38c3c4..00000000000
--- a/db/migrate/20160829114652_add_markdown_cache_columns.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddMarkdownCacheColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  COLUMNS = {
-    abuse_reports: [:message],
-    appearances: [:description],
-    application_settings: [
-      :sign_in_text,
-      :help_page_text,
-      :shared_runners_text,
-      :after_sign_up_text
-    ],
-    broadcast_messages: [:message],
-    issues: [:title, :description],
-    labels: [:description],
-    merge_requests: [:title, :description],
-    milestones: [:title, :description],
-    namespaces: [:description],
-    notes: [:note],
-    projects: [:description],
-    releases: [:description],
-    snippets: [:title, :content]
-  }.freeze
-
-  def change
-    COLUMNS.each do |table, columns|
-      columns.each do |column|
-        add_column table, "#{column}_html", :text
-      end
-    end
-  end
-end
diff --git a/db/migrate/20160830203109_add_confidential_issues_events_to_web_hooks.rb b/db/migrate/20160830203109_add_confidential_issues_events_to_web_hooks.rb
deleted file mode 100644
index 771a6b84648..00000000000
--- a/db/migrate/20160830203109_add_confidential_issues_events_to_web_hooks.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddConfidentialIssuesEventsToWebHooks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :web_hooks, :confidential_issues_events, :boolean, default: false, allow_null: false
-  end
-
-  def down
-    remove_column :web_hooks, :confidential_issues_events
-  end
-end
diff --git a/db/migrate/20160830211132_add_confidential_issues_events_to_services.rb b/db/migrate/20160830211132_add_confidential_issues_events_to_services.rb
deleted file mode 100644
index a1807264341..00000000000
--- a/db/migrate/20160830211132_add_confidential_issues_events_to_services.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddConfidentialIssuesEventsToServices < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :services, :confidential_issues_events, :boolean, default: true, allow_null: false
-  end
-
-  def down
-    remove_column :services, :confidential_issues_events
-  end
-end
diff --git a/db/migrate/20160830232601_change_lock_version_not_null.rb b/db/migrate/20160830232601_change_lock_version_not_null.rb
deleted file mode 100644
index 1e34b57e53f..00000000000
--- a/db/migrate/20160830232601_change_lock_version_not_null.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class ChangeLockVersionNotNull < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    change_column_null :issues, :lock_version, true
-    change_column_null :merge_requests, :lock_version, true
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20160831214002_create_project_features.rb b/db/migrate/20160831214002_create_project_features.rb
deleted file mode 100644
index e1e61c3a4a2..00000000000
--- a/db/migrate/20160831214002_create_project_features.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateProjectFeatures < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :project_features do |t|
-      t.belongs_to :project, index: true
-      t.integer  :merge_requests_access_level
-      t.integer  :issues_access_level
-      t.integer  :wiki_access_level
-      t.integer  :snippets_access_level
-      t.integer  :builds_access_level
-
-      t.timestamps null: true
-    end
-  end
-end
diff --git a/db/migrate/20160831214543_migrate_project_features.rb b/db/migrate/20160831214543_migrate_project_features.rb
deleted file mode 100644
index ba7ffd7c9f2..00000000000
--- a/db/migrate/20160831214543_migrate_project_features.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-class MigrateProjectFeatures < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON =
-    <<-EOT.freeze
-      Migrating issues_enabled, merge_requests_enabled, wiki_enabled, builds_enabled, snippets_enabled fields from projects to
-      a new table called project_features.
-    EOT
-
-  def up
-    sql =
-      %Q{
-        INSERT INTO project_features(project_id, issues_access_level, merge_requests_access_level, wiki_access_level,
-        builds_access_level, snippets_access_level, created_at, updated_at)
-          SELECT
-          id AS project_id,
-          CASE WHEN issues_enabled IS true THEN 20 ELSE 0 END AS issues_access_level,
-          CASE WHEN merge_requests_enabled IS true THEN 20 ELSE 0 END AS merge_requests_access_level,
-          CASE WHEN wiki_enabled IS true THEN 20 ELSE 0 END AS wiki_access_level,
-          CASE WHEN builds_enabled IS true THEN 20 ELSE 0 END AS builds_access_level,
-          CASE WHEN snippets_enabled IS true THEN 20 ELSE 0 END AS snippets_access_level,
-          created_at,
-          updated_at
-          FROM projects
-      }
-
-    execute(sql)
-  end
-
-  def down
-    sql = %Q{
-      UPDATE projects
-      SET
-      issues_enabled = COALESCE((SELECT CASE WHEN issues_access_level = 20 THEN true ELSE false END AS issues_enabled FROM project_features WHERE project_features.project_id = projects.id), true),
-      merge_requests_enabled = COALESCE((SELECT CASE WHEN merge_requests_access_level = 20 THEN true ELSE false END AS merge_requests_enabled FROM project_features WHERE project_features.project_id = projects.id),true),
-      wiki_enabled = COALESCE((SELECT CASE WHEN wiki_access_level = 20 THEN true ELSE false END AS wiki_enabled FROM project_features WHERE project_features.project_id = projects.id), true),
-      builds_enabled = COALESCE((SELECT CASE WHEN builds_access_level = 20 THEN true ELSE false END AS builds_enabled FROM project_features WHERE project_features.project_id = projects.id), true),
-      snippets_enabled = COALESCE((SELECT CASE WHEN snippets_access_level = 20 THEN true ELSE false END AS snippets_enabled FROM project_features WHERE project_features.project_id = projects.id),true)
-    }
-
-    execute(sql)
-  end
-end
diff --git a/db/migrate/20160831223750_remove_features_enabled_from_projects.rb b/db/migrate/20160831223750_remove_features_enabled_from_projects.rb
deleted file mode 100644
index 6d39d42882b..00000000000
--- a/db/migrate/20160831223750_remove_features_enabled_from_projects.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/UpdateLargeTable
-class RemoveFeaturesEnabledFromProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-  DOWNTIME_REASON = "Removing fields from database requires downtine."
-
-  def up
-    remove_column :projects, :issues_enabled
-    remove_column :projects, :merge_requests_enabled
-    remove_column :projects, :builds_enabled
-    remove_column :projects, :wiki_enabled
-    remove_column :projects, :snippets_enabled
-  end
-
-  # Ugly SQL but the only way i found to make it work on both Postgres and Mysql
-  # It will be slow but it is ok since it is a revert method
-  def down
-    add_column_with_default(:projects, :issues_enabled, :boolean, default: true, allow_null: false)
-    add_column_with_default(:projects, :merge_requests_enabled, :boolean, default: true, allow_null: false)
-    add_column_with_default(:projects, :builds_enabled, :boolean, default: true, allow_null: false)
-    add_column_with_default(:projects, :wiki_enabled, :boolean, default: true, allow_null: false)
-    add_column_with_default(:projects, :snippets_enabled, :boolean, default: true, allow_null: false)
-  end
-end
diff --git a/db/migrate/20160901141443_set_confidential_issues_events_on_webhooks.rb b/db/migrate/20160901141443_set_confidential_issues_events_on_webhooks.rb
deleted file mode 100644
index 2921bb566c9..00000000000
--- a/db/migrate/20160901141443_set_confidential_issues_events_on_webhooks.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable Migration/UpdateColumnInBatches
-class SetConfidentialIssuesEventsOnWebhooks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:web_hooks, :confidential_issues_events, true) do |table, query|
-      query.where(table[:issues_events].eq(true))
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/migrate/20160901213340_add_lfs_enabled_to_namespaces.rb b/db/migrate/20160901213340_add_lfs_enabled_to_namespaces.rb
deleted file mode 100644
index 1be5f3f6ab0..00000000000
--- a/db/migrate/20160901213340_add_lfs_enabled_to_namespaces.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLfsEnabledToNamespaces < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :namespaces, :lfs_enabled, :boolean
-  end
-end
diff --git a/db/migrate/20160902122721_drop_gitorious_field_from_application_settings.rb b/db/migrate/20160902122721_drop_gitorious_field_from_application_settings.rb
deleted file mode 100644
index 6c2dc58876e..00000000000
--- a/db/migrate/20160902122721_drop_gitorious_field_from_application_settings.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-class DropGitoriousFieldFromApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # After the deploy the caches will be cold anyway
-  DOWNTIME = false
-
-  def up
-    require 'yaml'
-
-    import_sources = connection.execute('SELECT import_sources FROM application_settings;')
-    return unless import_sources.first # support empty databases
-
-    yaml = if Gitlab::Database.postgresql?
-             import_sources.values[0][0]
-           else
-             import_sources.first[0]
-           end
-
-    yaml = YAML.safe_load(yaml)
-    yaml.delete 'gitorious'
-
-    # No need for a WHERE clause as there is only one
-    connection.execute("UPDATE application_settings SET import_sources = #{update_yaml(yaml)}")
-  end
-
-  def down
-    # noop, gitorious still yields a 404 anyway
-  end
-
-  private
-
-  def connection
-    ActiveRecord::Base.connection
-  end
-
-  def update_yaml(yaml)
-    connection.quote(YAML.dump(yaml))
-  end
-end
diff --git a/db/migrate/20160907131111_add_environment_type_to_environments.rb b/db/migrate/20160907131111_add_environment_type_to_environments.rb
deleted file mode 100644
index 34463178fca..00000000000
--- a/db/migrate/20160907131111_add_environment_type_to_environments.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddEnvironmentTypeToEnvironments < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :environments, :environment_type, :string
-  end
-end
diff --git a/db/migrate/20160913162434_remove_projects_pushes_since_gc.rb b/db/migrate/20160913162434_remove_projects_pushes_since_gc.rb
deleted file mode 100644
index 51650c68170..00000000000
--- a/db/migrate/20160913162434_remove_projects_pushes_since_gc.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/UpdateLargeTable
-class RemoveProjectsPushesSinceGc < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration removes an existing column'
-
-  disable_ddl_transaction!
-
-  def up
-    remove_column :projects, :pushes_since_gc
-  end
-
-  def down
-    add_column_with_default :projects, :pushes_since_gc, :integer, default: 0
-  end
-end
diff --git a/db/migrate/20160913212128_change_artifacts_size_column.rb b/db/migrate/20160913212128_change_artifacts_size_column.rb
deleted file mode 100644
index f2c2aaff9a8..00000000000
--- a/db/migrate/20160913212128_change_artifacts_size_column.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class ChangeArtifactsSizeColumn < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-
-  DOWNTIME_REASON = 'Changing an integer column size requires a full table rewrite.'
-
-  def up
-    change_column :ci_builds, :artifacts_size, :integer, limit: 8
-  end
-
-  def down
-    # do nothing
-  end
-end
diff --git a/db/migrate/20160914131004_only_allow_merge_if_all_discussions_are_resolved.rb b/db/migrate/20160914131004_only_allow_merge_if_all_discussions_are_resolved.rb
deleted file mode 100644
index 81511f9861b..00000000000
--- a/db/migrate/20160914131004_only_allow_merge_if_all_discussions_are_resolved.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class OnlyAllowMergeIfAllDiscussionsAreResolved < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  disable_ddl_transaction!
-
-  def up
-    add_column :projects, :only_allow_merge_if_all_discussions_are_resolved, :boolean
-  end
-
-  def down
-    remove_column(:projects, :only_allow_merge_if_all_discussions_are_resolved)
-  end
-end
diff --git a/db/migrate/20160915042921_create_merge_requests_closing_issues.rb b/db/migrate/20160915042921_create_merge_requests_closing_issues.rb
deleted file mode 100644
index 3efe8c8901b..00000000000
--- a/db/migrate/20160915042921_create_merge_requests_closing_issues.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/Timestamps
-class CreateMergeRequestsClosingIssues < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Adding foreign keys'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    create_table :merge_requests_closing_issues do |t|
-      t.references :merge_request, foreign_key: { on_delete: :cascade }, index: true, null: false
-      t.references :issue, foreign_key: { on_delete: :cascade }, index: true, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20160919144305_add_type_to_labels.rb b/db/migrate/20160919144305_add_type_to_labels.rb
deleted file mode 100644
index f897646d264..00000000000
--- a/db/migrate/20160919144305_add_type_to_labels.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable Migration/UpdateColumnInBatches
-class AddTypeToLabels < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Labels will not work as expected until this migration is complete.'
-
-  disable_ddl_transaction!
-
-  def change
-    add_column :labels, :type, :string
-
-    update_column_in_batches(:labels, :type, 'ProjectLabel') do |table, query|
-      query.where(table[:project_id].not_eq(nil))
-    end
-  end
-end
diff --git a/db/migrate/20160919145149_add_group_id_to_labels.rb b/db/migrate/20160919145149_add_group_id_to_labels.rb
deleted file mode 100644
index df11a2fc4c8..00000000000
--- a/db/migrate/20160919145149_add_group_id_to_labels.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddGroupIdToLabels < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :labels, :group_id, :integer
-    add_foreign_key :labels, :namespaces, column: :group_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
-    add_concurrent_index :labels, :group_id
-  end
-
-  def down
-    remove_foreign_key :labels, column: :group_id
-    remove_index :labels, :group_id if index_exists? :labels, :group_id
-    remove_column :labels, :group_id
-  end
-end
diff --git a/db/migrate/20160920160832_add_index_to_labels_title.rb b/db/migrate/20160920160832_add_index_to_labels_title.rb
deleted file mode 100644
index e6c87836d4e..00000000000
--- a/db/migrate/20160920160832_add_index_to_labels_title.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToLabelsTitle < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :labels, :title
-  end
-
-  def down
-    remove_index :labels, :title if index_exists? :labels, :title
-  end
-end
diff --git a/db/migrate/20160926145521_add_organization_to_user.rb b/db/migrate/20160926145521_add_organization_to_user.rb
deleted file mode 100644
index 2d8d907591d..00000000000
--- a/db/migrate/20160926145521_add_organization_to_user.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddOrganizationToUser < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :users, :organization, :string
-  end
-end
diff --git a/db/migrate/20161006104309_add_state_to_environment.rb b/db/migrate/20161006104309_add_state_to_environment.rb
deleted file mode 100644
index c51dada9bca..00000000000
--- a/db/migrate/20161006104309_add_state_to_environment.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddStateToEnvironment < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:environments, :state, :string, default: :available)
-  end
-
-  def down
-    remove_column(:environments, :state)
-  end
-end
diff --git a/db/migrate/20161007073613_create_user_activities.rb b/db/migrate/20161007073613_create_user_activities.rb
deleted file mode 100644
index dc972bf4664..00000000000
--- a/db/migrate/20161007073613_create_user_activities.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-
-class CreateUserActivities < ActiveRecord::Migration[4.2]
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Adding foreign key'.freeze
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    create_table :user_activities do |t|
-      t.belongs_to :user, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.datetime :last_activity_at, null: false
-    end
-  end
-end
diff --git a/db/migrate/20161007133303_precalculate_trending_projects.rb b/db/migrate/20161007133303_precalculate_trending_projects.rb
deleted file mode 100644
index c7a678c9d8f..00000000000
--- a/db/migrate/20161007133303_precalculate_trending_projects.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PrecalculateTrendingProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    create_table :trending_projects do |t|
-      t.references :project, index: true, foreign_key: { on_delete: :cascade }, null: false
-    end
-
-    timestamp = connection.quote(1.month.ago)
-
-    # We're hardcoding the visibility level (public) here so that if it ever
-    # changes this query doesn't suddenly use the new value (which may break
-    # later migrations).
-    visibility = 20
-
-    execute <<-EOF.strip_heredoc
-      INSERT INTO trending_projects (project_id)
-      SELECT project_id
-      FROM notes
-      INNER JOIN projects ON projects.id = notes.project_id
-      WHERE notes.created_at >= #{timestamp}
-      AND notes.system IS FALSE
-      AND projects.visibility_level = #{visibility}
-      GROUP BY project_id
-      ORDER BY count(*) DESC
-      LIMIT 100;
-    EOF
-  end
-
-  def down
-    drop_table :trending_projects
-  end
-end
diff --git a/db/migrate/20161010142410_create_project_authorizations.rb b/db/migrate/20161010142410_create_project_authorizations.rb
deleted file mode 100644
index b340a4ece19..00000000000
--- a/db/migrate/20161010142410_create_project_authorizations.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class CreateProjectAuthorizations < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :project_authorizations do |t|
-      t.references :user, foreign_key: { on_delete: :cascade }
-      t.references :project, foreign_key: { on_delete: :cascade }
-      t.integer :access_level
-
-      t.index [:user_id, :project_id, :access_level], unique: true, name: 'index_project_authorizations_on_user_id_project_id_access_level'
-    end
-  end
-end
diff --git a/db/migrate/20161012180455_add_repository_access_level_to_project_feature.rb b/db/migrate/20161012180455_add_repository_access_level_to_project_feature.rb
deleted file mode 100644
index 3024ea81ed8..00000000000
--- a/db/migrate/20161012180455_add_repository_access_level_to_project_feature.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class AddRepositoryAccessLevelToProjectFeature < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:project_features, :repository_access_level, :integer, default: ProjectFeature::ENABLED)
-  end
-
-  def down
-    remove_column :project_features, :repository_access_level
-  end
-end
diff --git a/db/migrate/20161014173530_create_label_priorities.rb b/db/migrate/20161014173530_create_label_priorities.rb
deleted file mode 100644
index c7d60caa7d1..00000000000
--- a/db/migrate/20161014173530_create_label_priorities.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateLabelPriorities < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration adds foreign keys'
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :label_priorities do |t|
-      t.references :project, foreign_key: { on_delete: :cascade }, null: false
-      t.references :label, foreign_key: { on_delete: :cascade }, null: false
-      t.integer :priority, null: false
-
-      t.timestamps null: false
-    end
-
-    add_concurrent_index :label_priorities, [:project_id, :label_id], unique: true
-    add_concurrent_index :label_priorities, :priority
-  end
-
-  def down
-    drop_table :label_priorities
-  end
-end
diff --git a/db/migrate/20161017091941_add_authorized_projects_populated_to_users.rb b/db/migrate/20161017091941_add_authorized_projects_populated_to_users.rb
deleted file mode 100644
index 11f4fa1a1f7..00000000000
--- a/db/migrate/20161017091941_add_authorized_projects_populated_to_users.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddAuthorizedProjectsPopulatedToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :users, :authorized_projects_populated, :boolean
-  end
-end
diff --git a/db/migrate/20161017095000_add_properties_to_deployment.rb b/db/migrate/20161017095000_add_properties_to_deployment.rb
deleted file mode 100644
index 31bd4cd24ad..00000000000
--- a/db/migrate/20161017095000_add_properties_to_deployment.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddPropertiesToDeployment < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :deployments, :on_stop, :string
-  end
-end
diff --git a/db/migrate/20161017125927_add_unique_index_to_labels.rb b/db/migrate/20161017125927_add_unique_index_to_labels.rb
deleted file mode 100644
index b5326789f52..00000000000
--- a/db/migrate/20161017125927_add_unique_index_to_labels.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddUniqueIndexToLabels < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration removes duplicated labels.'
-
-  disable_ddl_transaction!
-
-  def up
-    select_all('SELECT title, project_id, COUNT(id) as cnt FROM labels GROUP BY project_id, title HAVING COUNT(id) > 1').each do |label|
-      label_title = quote_string(label['title'])
-      duplicated_ids = select_all("SELECT id FROM labels WHERE project_id = #{label['project_id']} AND title = '#{label_title}' ORDER BY id ASC").map { |label| label['id'] }
-      label_id = duplicated_ids.first
-      duplicated_ids.delete(label_id)
-
-      execute("UPDATE label_links SET label_id = #{label_id} WHERE label_id IN(#{duplicated_ids.join(",")})")
-      execute("DELETE FROM labels WHERE id IN(#{duplicated_ids.join(",")})")
-    end
-
-    remove_index :labels, column: :project_id if index_exists?(:labels, :project_id)
-    remove_index :labels, column: :title if index_exists?(:labels, :title)
-
-    add_concurrent_index :labels, [:group_id, :project_id, :title], unique: true
-  end
-
-  def down
-    remove_index :labels, column: [:group_id, :project_id, :title] if index_exists?(:labels, [:group_id, :project_id, :title], unique: true)
-
-    add_concurrent_index :labels, :project_id
-    add_concurrent_index :labels, :title
-  end
-end
diff --git a/db/migrate/20161018024215_migrate_labels_priority.rb b/db/migrate/20161018024215_migrate_labels_priority.rb
deleted file mode 100644
index 3e2540c134c..00000000000
--- a/db/migrate/20161018024215_migrate_labels_priority.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-class MigrateLabelsPriority < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Prioritized labels will not work as expected until this migration is complete.'
-
-  disable_ddl_transaction!
-
-  def up
-    execute <<-EOF.strip_heredoc
-      INSERT INTO label_priorities (project_id, label_id, priority, created_at, updated_at)
-      SELECT labels.project_id, labels.id, labels.priority, NOW(), NOW()
-      FROM labels
-      WHERE labels.project_id IS NOT NULL
-        AND labels.priority IS NOT NULL;
-    EOF
-  end
-
-  def down
-    if Gitlab::Database.mysql?
-      execute <<-EOF.strip_heredoc
-        UPDATE labels
-          INNER JOIN label_priorities ON labels.id = label_priorities.label_id AND labels.project_id = label_priorities.project_id
-        SET labels.priority = label_priorities.priority;
-      EOF
-    else
-      execute <<-EOF.strip_heredoc
-        UPDATE labels
-        SET priority = label_priorities.priority
-        FROM label_priorities
-        WHERE labels.id = label_priorities.label_id
-          AND labels.project_id = label_priorities.project_id;
-      EOF
-    end
-  end
-end
diff --git a/db/migrate/20161018024550_remove_priority_from_labels.rb b/db/migrate/20161018024550_remove_priority_from_labels.rb
deleted file mode 100644
index e164d959bdf..00000000000
--- a/db/migrate/20161018024550_remove_priority_from_labels.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-class RemovePriorityFromLabels < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration removes an existing column'
-
-  disable_ddl_transaction!
-
-  def up
-    remove_column :labels, :priority, :integer, index: true
-  end
-
-  def down
-    add_column :labels, :priority, :integer
-    add_concurrent_index :labels, :priority
-  end
-end
diff --git a/db/migrate/20161018124658_make_project_owners_masters.rb b/db/migrate/20161018124658_make_project_owners_masters.rb
deleted file mode 100644
index 132c17388dc..00000000000
--- a/db/migrate/20161018124658_make_project_owners_masters.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable Migration/UpdateColumnInBatches
-class MakeProjectOwnersMasters < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:members, :access_level, 40) do |table, query|
-      query.where(table[:access_level].eq(50).and(table[:source_type].eq('Project')))
-    end
-  end
-
-  def down
-    # do nothing
-  end
-end
diff --git a/db/migrate/20161019190736_migrate_sidekiq_queues_from_default.rb b/db/migrate/20161019190736_migrate_sidekiq_queues_from_default.rb
deleted file mode 100644
index fc6d9784638..00000000000
--- a/db/migrate/20161019190736_migrate_sidekiq_queues_from_default.rb
+++ /dev/null
@@ -1,109 +0,0 @@
-require 'json'
-
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateSidekiqQueuesFromDefault < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-
-  DOWNTIME_REASON = <<-EOF
-  Moving Sidekiq jobs from queues requires Sidekiq to be stopped. Not stopping
-  Sidekiq will result in the loss of jobs that are scheduled after this
-  migration completes.
-  EOF
-
-  disable_ddl_transaction!
-
-  # Jobs for which the queue names have been changed (e.g. multiple workers
-  # using the same non-default queue).
-  #
-  # The keys are the old queue names, the values the jobs to move and their new
-  # queue names.
-  RENAMED_QUEUES = {
-    gitlab_shell: {
-      'GitGarbageCollectorWorker' => :git_garbage_collector,
-      'ProjectExportWorker'       => :project_export,
-      'RepositoryForkWorker'      => :repository_fork,
-      'RepositoryImportWorker'    => :repository_import
-    },
-    project_web_hook: {
-      'ProjectServiceWorker' => :project_service
-    },
-    incoming_email: {
-      'EmailReceiverWorker' => :email_receiver
-    },
-    mailers: {
-      'EmailsOnPushWorker' => :emails_on_push
-    },
-    default: {
-      'AdminEmailWorker'                        => :cronjob,
-      'BuildCoverageWorker'                     => :build,
-      'BuildEmailWorker'                        => :build,
-      'BuildFinishedWorker'                     => :build,
-      'BuildHooksWorker'                        => :build,
-      'BuildSuccessWorker'                      => :build,
-      'ClearDatabaseCacheWorker'                => :clear_database_cache,
-      'DeleteUserWorker'                        => :delete_user,
-      'ExpireBuildArtifactsWorker'              => :cronjob,
-      'ExpireBuildInstanceArtifactsWorker'      => :expire_build_instance_artifacts,
-      'GroupDestroyWorker'                      => :group_destroy,
-      'ImportExportProjectCleanupWorker'        => :cronjob,
-      'IrkerWorker'                             => :irker,
-      'MergeWorker'                             => :merge,
-      'NewNoteWorker'                           => :new_note,
-      'PipelineHooksWorker'                     => :pipeline,
-      'PipelineMetricsWorker'                   => :pipeline,
-      'PipelineProcessWorker'                   => :pipeline,
-      'PipelineSuccessWorker'                   => :pipeline,
-      'PipelineUpdateWorker'                    => :pipeline,
-      'ProjectCacheWorker'                      => :project_cache,
-      'ProjectDestroyWorker'                    => :project_destroy,
-      'PruneOldEventsWorker'                    => :cronjob,
-      'RemoveExpiredGroupLinksWorker'           => :cronjob,
-      'RemoveExpiredMembersWorker'              => :cronjob,
-      'RepositoryArchiveCacheWorker'            => :cronjob,
-      'RepositoryCheck::BatchWorker'            => :cronjob,
-      'RepositoryCheck::ClearWorker'            => :repository_check,
-      'RepositoryCheck::SingleRepositoryWorker' => :repository_check,
-      'RequestsProfilesWorker'                  => :cronjob,
-      'StuckCiBuildsWorker'                     => :cronjob,
-      'UpdateMergeRequestsWorker'               => :update_merge_requests
-    }
-  }.freeze
-
-  def up
-    Sidekiq.redis do |redis|
-      RENAMED_QUEUES.each do |queue, jobs|
-        migrate_from_queue(redis, queue, jobs)
-      end
-    end
-  end
-
-  def down
-    Sidekiq.redis do |redis|
-      RENAMED_QUEUES.each do |dest_queue, jobs|
-        jobs.each do |worker, from_queue|
-          migrate_from_queue(redis, from_queue, worker => dest_queue)
-        end
-      end
-    end
-  end
-
-  def migrate_from_queue(redis, queue, job_mapping)
-    while job = redis.lpop("queue:#{queue}")
-      payload = JSON.parse(job)
-      new_queue = job_mapping[payload['class']]
-
-      # If we have no target queue to migrate to we're probably dealing with
-      # some ancient job for which the worker no longer exists. In that case
-      # there's no sane option we can take, other than just dropping the job.
-      next unless new_queue
-
-      payload['queue'] = new_queue
-
-      redis.lpush("queue:#{new_queue}", JSON.dump(payload))
-    end
-  end
-end
diff --git a/db/migrate/20161019213545_generate_project_feature_for_projects.rb b/db/migrate/20161019213545_generate_project_feature_for_projects.rb
deleted file mode 100644
index 587bdf60f70..00000000000
--- a/db/migrate/20161019213545_generate_project_feature_for_projects.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-class GenerateProjectFeatureForProjects < ActiveRecord::Migration[4.2]
-  DOWNTIME = true
-
-  DOWNTIME_REASON = <<-HEREDOC
-    Application was eager loading project_feature for all projects generating an extra query
-    everytime a project was fetched. We removed that behavior to avoid the extra query, this migration
-    makes sure all projects have a project_feature record associated.
-  HEREDOC
-
-  def up
-    # Generate enabled values for each project feature 20, 20, 20, 20, 20
-    # All features are enabled by default
-    enabled_values = [ProjectFeature::ENABLED] * 5
-
-    execute <<-EOF.strip_heredoc
-      INSERT INTO project_features
-      (project_id, merge_requests_access_level, builds_access_level,
-      issues_access_level, snippets_access_level, wiki_access_level)
-      (SELECT projects.id, #{enabled_values.join(',')} FROM projects LEFT OUTER JOIN project_features
-      ON project_features.project_id = projects.id
-      WHERE project_features.id IS NULL)
-    EOF
-  end
-
-  def down
-    "Not needed"
-  end
-end
diff --git a/db/migrate/20161020075734_default_request_access_groups.rb b/db/migrate/20161020075734_default_request_access_groups.rb
deleted file mode 100644
index 72aec86167e..00000000000
--- a/db/migrate/20161020075734_default_request_access_groups.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class DefaultRequestAccessGroups < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  def up
-    change_column_default :namespaces, :request_access_enabled, false
-  end
-
-  def down
-    change_column_default :namespaces, :request_access_enabled, true
-  end
-end
diff --git a/db/migrate/20161020075830_default_request_access_projects.rb b/db/migrate/20161020075830_default_request_access_projects.rb
deleted file mode 100644
index b457e39f838..00000000000
--- a/db/migrate/20161020075830_default_request_access_projects.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class DefaultRequestAccessProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  def up
-    change_column_default :projects, :request_access_enabled, false
-  end
-
-  def down
-    change_column_default :projects, :request_access_enabled, true
-  end
-end
diff --git a/db/migrate/20161020083353_add_pipeline_id_to_merge_request_metrics.rb b/db/migrate/20161020083353_add_pipeline_id_to_merge_request_metrics.rb
deleted file mode 100644
index 60352363e42..00000000000
--- a/db/migrate/20161020083353_add_pipeline_id_to_merge_request_metrics.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddPipelineIdToMergeRequestMetrics < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Adding a foreign key'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def up
-    add_column :merge_request_metrics, :pipeline_id, :integer
-    add_foreign_key :merge_request_metrics, :ci_commits, column: :pipeline_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
-    add_concurrent_index :merge_request_metrics, :pipeline_id
-  end
-
-  def down
-    remove_foreign_key :merge_request_metrics, column: :pipeline_id
-    remove_index :merge_request_metrics, :pipeline_id if index_exists? :merge_request_metrics, :pipeline_id
-    remove_column :merge_request_metrics, :pipeline_id
-  end
-end
diff --git a/db/migrate/20161020180657_add_minimum_key_length_to_application_settings.rb b/db/migrate/20161020180657_add_minimum_key_length_to_application_settings.rb
deleted file mode 100644
index 7839bee6a5b..00000000000
--- a/db/migrate/20161020180657_add_minimum_key_length_to_application_settings.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-class AddMinimumKeyLengthToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # A key restriction has these possible states:
-    #
-    #   * -1 means "this key type is completely disabled"
-    #   * 0 means "all keys of this type are valid"
-    #   * > 0 means "keys must have at least this many bits to be valid"
-    #
-    # The default is 0, for backward compatibility
-    add_column_with_default :application_settings, :rsa_key_restriction, :integer, default: 0
-    add_column_with_default :application_settings, :dsa_key_restriction, :integer, default: 0
-    add_column_with_default :application_settings, :ecdsa_key_restriction, :integer, default: 0
-    add_column_with_default :application_settings, :ed25519_key_restriction, :integer, default: 0
-  end
-
-  def down
-    remove_column :application_settings, :rsa_key_restriction
-    remove_column :application_settings, :dsa_key_restriction
-    remove_column :application_settings, :ecdsa_key_restriction
-    remove_column :application_settings, :ed25519_key_restriction
-  end
-end
diff --git a/db/migrate/20161021114307_add_lock_version_to_build_and_pipelines.rb b/db/migrate/20161021114307_add_lock_version_to_build_and_pipelines.rb
deleted file mode 100644
index e172dc3adf2..00000000000
--- a/db/migrate/20161021114307_add_lock_version_to_build_and_pipelines.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLockVersionToBuildAndPipelines < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :lock_version, :integer
-    add_column :ci_commits, :lock_version, :integer
-  end
-end
diff --git a/db/migrate/20161024042317_migrate_mailroom_queue_from_default.rb b/db/migrate/20161024042317_migrate_mailroom_queue_from_default.rb
deleted file mode 100644
index d27f8fc38c8..00000000000
--- a/db/migrate/20161024042317_migrate_mailroom_queue_from_default.rb
+++ /dev/null
@@ -1,63 +0,0 @@
-require 'json'
-
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateMailroomQueueFromDefault < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-
-  DOWNTIME_REASON = <<-EOF
-  Moving Sidekiq jobs from queues requires Sidekiq to be stopped. Not stopping
-  Sidekiq will result in the loss of jobs that are scheduled after this
-  migration completes.
-  EOF
-
-  disable_ddl_transaction!
-
-  # Jobs for which the queue names have been changed (e.g. multiple workers
-  # using the same non-default queue).
-  #
-  # The keys are the old queue names, the values the jobs to move and their new
-  # queue names.
-  RENAMED_QUEUES = {
-      incoming_email: {
-          'EmailReceiverWorker' => :email_receiver
-      }
-  }.freeze
-
-  def up
-    Sidekiq.redis do |redis|
-      RENAMED_QUEUES.each do |queue, jobs|
-        migrate_from_queue(redis, queue, jobs)
-      end
-    end
-  end
-
-  def down
-    Sidekiq.redis do |redis|
-      RENAMED_QUEUES.each do |dest_queue, jobs|
-        jobs.each do |worker, from_queue|
-          migrate_from_queue(redis, from_queue, worker => dest_queue)
-        end
-      end
-    end
-  end
-
-  def migrate_from_queue(redis, queue, job_mapping)
-    while job = redis.lpop("queue:#{queue}")
-      payload = JSON.parse(job)
-      new_queue = job_mapping[payload['class']]
-
-      # If we have no target queue to migrate to we're probably dealing with
-      # some ancient job for which the worker no longer exists. In that case
-      # there's no sane option we can take, other than just dropping the job.
-      next unless new_queue
-
-      payload['queue'] = new_queue
-
-      redis.lpush("queue:#{new_queue}", JSON.dump(payload))
-    end
-  end
-end
diff --git a/db/migrate/20161025231710_migrate_jira_to_gem.rb b/db/migrate/20161025231710_migrate_jira_to_gem.rb
deleted file mode 100644
index aa1c59ec9e6..00000000000
--- a/db/migrate/20161025231710_migrate_jira_to_gem.rb
+++ /dev/null
@@ -1,73 +0,0 @@
-class MigrateJiraToGem < ActiveRecord::Migration[4.2]
-  DOWNTIME = true
-
-  DOWNTIME_REASON = <<-HEREDOC
-    Refactor all Jira services properties(serialized field) to use new jira-ruby gem.
-    There were properties on old Jira service that are not needed anymore after the
-    service refactoring: api_url, project_url, new_issue_url, issues_url.
-    We extract the new necessary some properties from old keys and delete them:
-    taking project_key from project_url and url from api_url
-  HEREDOC
-
-  def up
-    active_services_query = "SELECT id, properties FROM services WHERE services.type IN ('JiraService') AND services.active = true"
-
-    select_all(active_services_query).each do |service|
-      id = service['id']
-      properties = JSON.parse(service['properties'])
-      properties_was = properties.clone
-
-      # Migrate `project_url` to `project_key`
-      # Ignore if `project_url` doesn't have jql project query with project key
-      if properties['project_url'].present?
-        jql = properties['project_url'].match('project=([A-Za-z]*)')
-        properties['project_key'] = jql.captures.first if jql
-      end
-
-      # Migrate `api_url` to `url`
-      if properties['api_url'].present?
-        url = properties['api_url'].match('(.*)\/rest\/api')
-        properties['url'] = url.captures.first if url
-      end
-
-      # Delete now unnecessary properties
-      properties.delete('api_url')
-      properties.delete('project_url')
-      properties.delete('new_issue_url')
-      properties.delete('issues_url')
-
-      # Update changes properties
-      if properties != properties_was
-        execute("UPDATE services SET properties = '#{quote_string(properties.to_json)}' WHERE id = #{id}")
-      end
-    end
-  end
-
-  def down
-    active_services_query = "SELECT id, properties FROM services WHERE services.type IN ('JiraService') AND services.active = true"
-
-    select_all(active_services_query).each do |service|
-      id = service['id']
-      properties = JSON.parse(service['properties'])
-      properties_was = properties.clone
-
-      # Rebuild old properties based on sane defaults
-      if properties['url'].present?
-        properties['api_url'] = "#{properties['url']}/rest/api/2"
-        properties['project_url'] =
-          "#{properties['url']}/issues/?jql=project=#{properties['project_key']}"
-        properties['issues_url'] = "#{properties['url']}/browse/:id"
-        properties['new_issue_url'] = "#{properties['url']}/secure/CreateIssue.jspa"
-      end
-
-      # Delete the new properties
-      properties.delete('url')
-      properties.delete('project_key')
-
-      # Update changes properties
-      if properties != properties_was
-        execute("UPDATE services SET properties = '#{quote_string(properties.to_json)}' WHERE id = #{id}")
-      end
-    end
-  end
-end
diff --git a/db/migrate/20161031155516_add_housekeeping_to_application_settings.rb b/db/migrate/20161031155516_add_housekeeping_to_application_settings.rb
deleted file mode 100644
index 963358fe3e5..00000000000
--- a/db/migrate/20161031155516_add_housekeeping_to_application_settings.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddHousekeepingToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:application_settings, :housekeeping_enabled, :boolean, default: true, allow_null: false)
-    add_column_with_default(:application_settings, :housekeeping_bitmaps_enabled, :boolean, default: true, allow_null: false)
-    add_column_with_default(:application_settings, :housekeeping_incremental_repack_period, :integer, default: 10, allow_null: false)
-    add_column_with_default(:application_settings, :housekeeping_full_repack_period, :integer, default: 50, allow_null: false)
-    add_column_with_default(:application_settings, :housekeeping_gc_period, :integer, default: 200, allow_null: false)
-  end
-
-  def down
-    remove_column(:application_settings, :housekeeping_enabled, :boolean, default: true, allow_null: false)
-    remove_column(:application_settings, :housekeeping_bitmaps_enabled, :boolean, default: true, allow_null: false)
-    remove_column(:application_settings, :housekeeping_incremental_repack_period, :integer, default: 10, allow_null: false)
-    remove_column(:application_settings, :housekeeping_full_repack_period, :integer, default: 50, allow_null: false)
-    remove_column(:application_settings, :housekeeping_gc_period, :integer, default: 200, allow_null: false)
-  end
-end
diff --git a/db/migrate/20161031171301_add_project_id_to_subscriptions.rb b/db/migrate/20161031171301_add_project_id_to_subscriptions.rb
deleted file mode 100644
index 5fd10d9b359..00000000000
--- a/db/migrate/20161031171301_add_project_id_to_subscriptions.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddProjectIdToSubscriptions < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    add_column :subscriptions, :project_id, :integer
-    add_foreign_key :subscriptions, :projects, column: :project_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
-  end
-
-  def down
-    remove_foreign_key :subscriptions, column: :project_id
-    remove_column :subscriptions, :project_id
-  end
-end
diff --git a/db/migrate/20161031174110_migrate_subscriptions_project_id.rb b/db/migrate/20161031174110_migrate_subscriptions_project_id.rb
deleted file mode 100644
index 7f4087fdcd3..00000000000
--- a/db/migrate/20161031174110_migrate_subscriptions_project_id.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-class MigrateSubscriptionsProjectId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Subscriptions will not work as expected until this migration is complete.'
-
-  def up
-    execute <<-EOF.strip_heredoc
-      UPDATE subscriptions
-      SET project_id = (
-        SELECT issues.project_id
-        FROM issues
-        WHERE issues.id = subscriptions.subscribable_id
-      )
-      WHERE subscriptions.subscribable_type = 'Issue';
-    EOF
-
-    execute <<-EOF.strip_heredoc
-      UPDATE subscriptions
-      SET project_id = (
-        SELECT merge_requests.target_project_id
-        FROM merge_requests
-        WHERE merge_requests.id = subscriptions.subscribable_id
-      )
-      WHERE subscriptions.subscribable_type = 'MergeRequest';
-    EOF
-
-    execute <<-EOF.strip_heredoc
-      UPDATE subscriptions
-      SET project_id = (
-        SELECT projects.id
-        FROM labels INNER JOIN projects ON projects.id = labels.project_id
-        WHERE labels.id = subscriptions.subscribable_id
-      )
-      WHERE subscriptions.subscribable_type = 'Label';
-    EOF
-  end
-
-  def down
-    execute <<-EOF.strip_heredoc
-      UPDATE subscriptions SET project_id = NULL;
-    EOF
-  end
-end
diff --git a/db/migrate/20161031181638_add_unique_index_to_subscriptions.rb b/db/migrate/20161031181638_add_unique_index_to_subscriptions.rb
deleted file mode 100644
index 9005b42b41f..00000000000
--- a/db/migrate/20161031181638_add_unique_index_to_subscriptions.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddUniqueIndexToSubscriptions < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration requires downtime because it changes a column to not accept null values.'
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :subscriptions, [:subscribable_id, :subscribable_type, :user_id, :project_id], { unique: true, name: 'index_subscriptions_on_subscribable_and_user_id_and_project_id' }
-    remove_index :subscriptions, name: 'subscriptions_user_id_and_ref_fields' if index_name_exists?(:subscriptions, 'subscriptions_user_id_and_ref_fields')
-  end
-
-  def down
-    add_concurrent_index :subscriptions, [:subscribable_id, :subscribable_type, :user_id], { unique: true, name: 'subscriptions_user_id_and_ref_fields' }
-    remove_index :subscriptions, name: 'index_subscriptions_on_subscribable_and_user_id_and_project_id' if index_name_exists?(:subscriptions, 'index_subscriptions_on_subscribable_and_user_id_and_project_id')
-  end
-end
diff --git a/db/migrate/20161103171205_rename_repository_storage_column.rb b/db/migrate/20161103171205_rename_repository_storage_column.rb
deleted file mode 100644
index d6050500e47..00000000000
--- a/db/migrate/20161103171205_rename_repository_storage_column.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameRepositoryStorageColumn < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Renaming the application_settings.repository_storage column'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    rename_column :application_settings, :repository_storage, :repository_storages
-  end
-end
diff --git a/db/migrate/20161103191444_add_sidekiq_throttling_to_application_settings.rb b/db/migrate/20161103191444_add_sidekiq_throttling_to_application_settings.rb
deleted file mode 100644
index 83c51c83509..00000000000
--- a/db/migrate/20161103191444_add_sidekiq_throttling_to_application_settings.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/SaferBooleanColumn
-class AddSidekiqThrottlingToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :application_settings, :sidekiq_throttling_enabled, :boolean, default: false
-    add_column :application_settings, :sidekiq_throttling_queues, :string
-    add_column :application_settings, :sidekiq_throttling_factor, :decimal
-  end
-end
diff --git a/db/migrate/20161106185620_add_project_import_data_project_index.rb b/db/migrate/20161106185620_add_project_import_data_project_index.rb
deleted file mode 100644
index 46809ca1707..00000000000
--- a/db/migrate/20161106185620_add_project_import_data_project_index.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddProjectImportDataProjectIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :project_import_data, :project_id
-  end
-
-  def down
-    remove_index :project_import_data, :project_id if index_exists? :project_import_data, :project_id
-  end
-end
diff --git a/db/migrate/20161113184239_create_user_chat_names_table.rb b/db/migrate/20161113184239_create_user_chat_names_table.rb
deleted file mode 100644
index 0031ca66afe..00000000000
--- a/db/migrate/20161113184239_create_user_chat_names_table.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateUserChatNamesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :chat_names do |t|
-      t.integer :user_id, null: false
-      t.integer :service_id, null: false
-      t.string :team_id, null: false
-      t.string :team_domain
-      t.string :chat_id, null: false
-      t.string :chat_name
-      t.datetime :last_used_at
-      t.timestamps null: false
-    end
-
-    add_index :chat_names, [:user_id, :service_id], unique: true
-    add_index :chat_names, [:service_id, :team_id, :chat_id], unique: true
-  end
-end
diff --git a/db/migrate/20161114024742_add_coverage_regex_to_builds.rb b/db/migrate/20161114024742_add_coverage_regex_to_builds.rb
deleted file mode 100644
index 631968b4aee..00000000000
--- a/db/migrate/20161114024742_add_coverage_regex_to_builds.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddCoverageRegexToBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :coverage_regex, :string
-  end
-end
diff --git a/db/migrate/20161115173905_add_start_date_to_milestones.rb b/db/migrate/20161115173905_add_start_date_to_milestones.rb
deleted file mode 100644
index 847c4f0bebb..00000000000
--- a/db/migrate/20161115173905_add_start_date_to_milestones.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddStartDateToMilestones < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :milestones, :start_date, :date
-  end
-end
diff --git a/db/migrate/20161118183841_add_commit_events_to_services.rb b/db/migrate/20161118183841_add_commit_events_to_services.rb
deleted file mode 100644
index 0eb08915118..00000000000
--- a/db/migrate/20161118183841_add_commit_events_to_services.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddCommitEventsToServices < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:services, :commit_events, :boolean, default: true, allow_null: false)
-  end
-
-  def down
-    remove_column(:services, :commit_events)
-  end
-end
diff --git a/db/migrate/20161124111390_add_parent_id_to_namespace.rb b/db/migrate/20161124111390_add_parent_id_to_namespace.rb
deleted file mode 100644
index 67f6aee2b9c..00000000000
--- a/db/migrate/20161124111390_add_parent_id_to_namespace.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddParentIdToNamespace < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column(:namespaces, :parent_id, :integer)
-  end
-end
diff --git a/db/migrate/20161124111395_add_index_to_parent_id.rb b/db/migrate/20161124111395_add_index_to_parent_id.rb
deleted file mode 100644
index d7a51ec905a..00000000000
--- a/db/migrate/20161124111395_add_index_to_parent_id.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIndexToParentId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:namespaces, [:parent_id, :id], unique: true)
-  end
-
-  def down
-    remove_index :namespaces, [:parent_id, :id] if index_exists? :namespaces, [:parent_id, :id]
-  end
-end
diff --git a/db/migrate/20161124111402_add_routes_table.rb b/db/migrate/20161124111402_add_routes_table.rb
deleted file mode 100644
index 36f49ef8c97..00000000000
--- a/db/migrate/20161124111402_add_routes_table.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/Timestamps
-class AddRoutesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :routes do |t|
-      t.integer :source_id,    null: false
-      t.string  :source_type,  null: false
-      t.string  :path,         null: false
-
-      t.timestamps
-    end
-  end
-end
diff --git a/db/migrate/20161124141322_migrate_process_commit_worker_jobs.rb b/db/migrate/20161124141322_migrate_process_commit_worker_jobs.rb
deleted file mode 100644
index 0772821210c..00000000000
--- a/db/migrate/20161124141322_migrate_process_commit_worker_jobs.rb
+++ /dev/null
@@ -1,105 +0,0 @@
-class MigrateProcessCommitWorkerJobs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  class Repository
-    attr_reader :storage
-
-    def initialize(storage, relative_path)
-      @storage = storage
-      @relative_path = relative_path
-    end
-
-    def gitaly_repository
-      Gitaly::Repository.new(storage_name: @storage, relative_path: @relative_path)
-    end
-  end
-
-  class Project < ActiveRecord::Base
-    def self.find_including_path(id)
-      select("projects.*, CONCAT(namespaces.path, '/', projects.path) AS path_with_namespace")
-        .joins('INNER JOIN namespaces ON namespaces.id = projects.namespace_id')
-        .find_by(id: id)
-    end
-
-    def commit(rev)
-      Gitlab::GitalyClient::CommitService.new(repository).find_commit(rev)
-    end
-
-    def repository
-      @repository ||= Repository.new(repository_storage, read_attribute(:path_with_namespace) + '.git')
-    end
-  end
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Existing workers will error until they are using a newer version of the code'
-
-  disable_ddl_transaction!
-
-  def up
-    Sidekiq.redis do |redis|
-      new_jobs = []
-
-      while job = redis.lpop('queue:process_commit')
-        payload = JSON.parse(job)
-        project = Project.find_including_path(payload['args'][0])
-
-        next unless project
-
-        commit = project.commit(payload['args'][2])
-        next unless commit
-
-        hash = {
-          id: commit.id,
-          message: encode(commit.body),
-          parent_ids: commit.parent_ids.to_a,
-          authored_date: Time.at(commit.author.date.seconds).utc,
-          author_name: encode(commit.author.name),
-          author_email: encode(commit.author.email),
-          committed_date: Time.at(commit.committer.date.seconds).utc,
-          committer_email: encode(commit.committer.email),
-          committer_name: encode(commit.committer.name)
-        }
-
-        payload['args'][2] = hash
-
-        new_jobs << JSON.dump(payload)
-      end
-
-      redis.multi do |multi|
-        new_jobs.each do |j|
-          multi.lpush('queue:process_commit', j)
-        end
-      end
-    end
-  end
-
-  def down
-    Sidekiq.redis do |redis|
-      new_jobs = []
-
-      while job = redis.lpop('queue:process_commit')
-        payload = JSON.parse(job)
-
-        payload['args'][2] = payload['args'][2]['id']
-
-        new_jobs << JSON.dump(payload)
-      end
-
-      redis.multi do |multi|
-        new_jobs.each do |j|
-          multi.lpush('queue:process_commit', j)
-        end
-      end
-    end
-  end
-
-  def encode(data)
-    encoding = Encoding::UTF_8
-
-    if data.encoding == encoding
-      data
-    else
-      data.encode(encoding, invalid: :replace, undef: :replace)
-    end
-  end
-end
diff --git a/db/migrate/20161128095517_add_in_reply_to_discussion_id_to_sent_notifications.rb b/db/migrate/20161128095517_add_in_reply_to_discussion_id_to_sent_notifications.rb
deleted file mode 100644
index a2971486014..00000000000
--- a/db/migrate/20161128095517_add_in_reply_to_discussion_id_to_sent_notifications.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddInReplyToDiscussionIdToSentNotifications < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :sent_notifications, :in_reply_to_discussion_id, :string
-  end
-end
diff --git a/db/migrate/20161128142110_remove_unnecessary_indexes.rb b/db/migrate/20161128142110_remove_unnecessary_indexes.rb
deleted file mode 100644
index b6c6e303ec7..00000000000
--- a/db/migrate/20161128142110_remove_unnecessary_indexes.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class RemoveUnnecessaryIndexes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    remove_index :labels, column: :group_id if index_exists?(:labels, :group_id)
-    remove_index :award_emoji, column: :user_id if index_exists?(:award_emoji, :user_id)
-    remove_index :ci_builds, column: :commit_id if index_exists?(:ci_builds, :commit_id)
-    remove_index :deployments, column: :project_id if index_exists?(:deployments, :project_id)
-    remove_index :deployments, column: %w(project_id environment_id) if index_exists?(:deployments, %w(project_id environment_id))
-    remove_index :lists, column: :board_id if index_exists?(:lists, :board_id)
-    remove_index :milestones, column: :project_id if index_exists?(:milestones, :project_id)
-    remove_index :notes, column: :project_id if index_exists?(:notes, :project_id)
-    remove_index :users_star_projects, column: :user_id if index_exists?(:users_star_projects, :user_id)
-  end
-
-  def down
-    add_concurrent_index :labels, :group_id
-    add_concurrent_index :award_emoji, :user_id
-    add_concurrent_index :ci_builds, :commit_id
-    add_concurrent_index :deployments, :project_id
-    add_concurrent_index :deployments, %w(project_id environment_id)
-    add_concurrent_index :lists, :board_id
-    add_concurrent_index :milestones, :project_id
-    add_concurrent_index :notes, :project_id
-    add_concurrent_index :users_star_projects, :user_id
-  end
-end
diff --git a/db/migrate/20161128161412_add_html_emails_enabled_to_application_settings.rb b/db/migrate/20161128161412_add_html_emails_enabled_to_application_settings.rb
deleted file mode 100644
index 63139eb97bd..00000000000
--- a/db/migrate/20161128161412_add_html_emails_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/SaferBooleanColumn
-class AddHtmlEmailsEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :application_settings, :html_emails_enabled, :boolean, default: true
-  end
-end
diff --git a/db/migrate/20161130095245_fill_routes_table.rb b/db/migrate/20161130095245_fill_routes_table.rb
deleted file mode 100644
index 712be187c7c..00000000000
--- a/db/migrate/20161130095245_fill_routes_table.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class FillRoutesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'No new namespaces should be created during data copy'
-
-  def up
-    execute <<-EOF
-      INSERT INTO routes
-      (source_id, source_type, path)
-      (SELECT id, 'Namespace', path FROM namespaces)
-    EOF
-  end
-
-  def down
-    execute("DELETE FROM routes WHERE source_type = 'Namespace'")
-  end
-end
diff --git a/db/migrate/20161130101252_fill_projects_routes_table.rb b/db/migrate/20161130101252_fill_projects_routes_table.rb
deleted file mode 100644
index 1900d6c8013..00000000000
--- a/db/migrate/20161130101252_fill_projects_routes_table.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class FillProjectsRoutesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'No new projects should be created during data copy'
-
-  def up
-    if Gitlab::Database.postgresql?
-      execute <<-EOF
-        INSERT INTO routes (source_id, source_type, path)
-        (SELECT DISTINCT ON (namespaces.path, projects.path) projects.id, 'Project', concat(namespaces.path, '/', projects.path)
-         FROM projects INNER JOIN namespaces ON projects.namespace_id = namespaces.id
-         ORDER BY namespaces.path, projects.path, projects.id DESC)
-      EOF
-    else
-      execute <<-EOF
-        INSERT INTO routes (source_id, source_type, path)
-        (SELECT projects.id, 'Project', concat(namespaces.path, '/', projects.path)
-         FROM projects INNER JOIN namespaces ON projects.namespace_id = namespaces.id)
-      EOF
-    end
-  end
-
-  def down
-    execute("DELETE FROM routes WHERE source_type = 'Project'")
-  end
-end
diff --git a/db/migrate/20161201001911_add_plant_uml_url_to_application_settings.rb b/db/migrate/20161201001911_add_plant_uml_url_to_application_settings.rb
deleted file mode 100644
index 79558a6b3b9..00000000000
--- a/db/migrate/20161201001911_add_plant_uml_url_to_application_settings.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddPlantUmlUrlToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :plantuml_url, :string
-  end
-end
diff --git a/db/migrate/20161201155511_create_project_statistics.rb b/db/migrate/20161201155511_create_project_statistics.rb
deleted file mode 100644
index 6dcb5adb82b..00000000000
--- a/db/migrate/20161201155511_create_project_statistics.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class CreateProjectStatistics < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    # use bigint columns to support values >2GB
-    counter_column = { limit: 8, null: false, default: 0 }
-
-    create_table :project_statistics do |t|
-      t.references :project, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.references :namespace, null: false, index: true
-      t.integer :commit_count, counter_column
-      t.integer :storage_size, counter_column
-      t.integer :repository_size, counter_column
-      t.integer :lfs_objects_size, counter_column
-      t.integer :build_artifacts_size, counter_column
-    end
-  end
-end
diff --git a/db/migrate/20161201160452_migrate_project_statistics.rb b/db/migrate/20161201160452_migrate_project_statistics.rb
deleted file mode 100644
index 42c5be07e83..00000000000
--- a/db/migrate/20161201160452_migrate_project_statistics.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-class MigrateProjectStatistics < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Removes two columns from the projects table'
-
-  def up
-    # convert repository_size in float (megabytes) to integer (bytes),
-    # initialize total storage_size with repository_size
-    execute <<-EOF
-      INSERT INTO project_statistics (project_id, namespace_id, commit_count, storage_size, repository_size)
-        SELECT id, namespace_id, commit_count, (repository_size * 1024 * 1024), (repository_size * 1024 * 1024) FROM projects
-    EOF
-
-    remove_column :projects, :repository_size
-    remove_column :projects, :commit_count
-  end
-
-  # rubocop: disable Migration/AddColumn
-  def down
-    add_column :projects, :repository_size, :float, default: 0.0
-    add_column :projects, :commit_count, :integer, default: 0
-  end
-end
diff --git a/db/migrate/20161202152031_remove_duplicates_from_routes.rb b/db/migrate/20161202152031_remove_duplicates_from_routes.rb
deleted file mode 100644
index 0615f683859..00000000000
--- a/db/migrate/20161202152031_remove_duplicates_from_routes.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveDuplicatesFromRoutes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    # We can skip this migration when running a PostgreSQL database because
-    # we use an optimized query in the "FillProjectsRoutesTable" migration
-    # to fill these values that avoid duplicate entries in the routes table.
-    return unless Gitlab::Database.mysql?
-
-    execute <<-EOF
-      DELETE duplicated_rows.*
-      FROM routes AS duplicated_rows
-        INNER JOIN (
-          SELECT path, MAX(id) as max_id
-          FROM routes
-          GROUP BY path
-          HAVING COUNT(*) > 1
-        ) AS good_rows ON good_rows.path = duplicated_rows.path AND good_rows.max_id <> duplicated_rows.id;
-    EOF
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20161202152035_add_index_to_routes.rb b/db/migrate/20161202152035_add_index_to_routes.rb
deleted file mode 100644
index ad2e0cd13c9..00000000000
--- a/db/migrate/20161202152035_add_index_to_routes.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIndexToRoutes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:routes, :path, unique: true)
-    add_concurrent_index(:routes, [:source_type, :source_id], unique: true)
-  end
-
-  def down
-    remove_index(:routes, :path) if index_exists? :routes, :path
-    remove_index(:routes, [:source_type, :source_id]) if index_exists? :routes, [:source_type, :source_id]
-  end
-end
diff --git a/db/migrate/20161206003819_add_plant_uml_enabled_to_application_settings.rb b/db/migrate/20161206003819_add_plant_uml_enabled_to_application_settings.rb
deleted file mode 100644
index bb44d56ee56..00000000000
--- a/db/migrate/20161206003819_add_plant_uml_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/SaferBooleanColumn
-class AddPlantUmlEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :plantuml_enabled, :boolean
-  end
-end
diff --git a/db/migrate/20161206153749_remove_uniq_path_index_from_namespace.rb b/db/migrate/20161206153749_remove_uniq_path_index_from_namespace.rb
deleted file mode 100644
index c301d76646e..00000000000
--- a/db/migrate/20161206153749_remove_uniq_path_index_from_namespace.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class RemoveUniqPathIndexFromNamespace < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    constraint_name = 'namespaces_path_key'
-
-    transaction do
-      if index_exists?(:namespaces, :path)
-        remove_index(:namespaces, :path)
-      end
-
-      # In some bizarre cases PostgreSQL might have a separate unique constraint
-      # that we'll need to drop.
-      if constraint_exists?(constraint_name) && Gitlab::Database.postgresql?
-        execute("ALTER TABLE namespaces DROP CONSTRAINT IF EXISTS #{constraint_name};")
-      end
-    end
-  end
-
-  def down
-    unless index_exists?(:namespaces, :path)
-      add_concurrent_index(:namespaces, :path, unique: true)
-    end
-  end
-
-  def constraint_exists?(name)
-    indexes(:namespaces).map(&:name).include?(name)
-  end
-end
diff --git a/db/migrate/20161206153751_add_path_index_to_namespace.rb b/db/migrate/20161206153751_add_path_index_to_namespace.rb
deleted file mode 100644
index f0848cc59a5..00000000000
--- a/db/migrate/20161206153751_add_path_index_to_namespace.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddPathIndexToNamespace < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_concurrent_index :namespaces, :path
-  end
-
-  def down
-    if index_exists?(:namespaces, :path)
-      remove_index :namespaces, :path
-    end
-  end
-end
diff --git a/db/migrate/20161206153753_remove_uniq_name_index_from_namespace.rb b/db/migrate/20161206153753_remove_uniq_name_index_from_namespace.rb
deleted file mode 100644
index 13660cec7aa..00000000000
--- a/db/migrate/20161206153753_remove_uniq_name_index_from_namespace.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class RemoveUniqNameIndexFromNamespace < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    constraint_name = 'namespaces_name_key'
-
-    transaction do
-      if index_exists?(:namespaces, :name)
-        remove_index(:namespaces, :name)
-      end
-
-      # In some bizarre cases PostgreSQL might have a separate unique constraint
-      # that we'll need to drop.
-      if constraint_exists?(constraint_name) && Gitlab::Database.postgresql?
-        execute("ALTER TABLE namespaces DROP CONSTRAINT IF EXISTS #{constraint_name};")
-      end
-    end
-  end
-
-  def down
-    unless index_exists?(:namespaces, :name)
-      add_concurrent_index(:namespaces, :name, unique: true)
-    end
-  end
-
-  def constraint_exists?(name)
-    indexes(:namespaces).map(&:name).include?(name)
-  end
-end
diff --git a/db/migrate/20161206153754_add_name_index_to_namespace.rb b/db/migrate/20161206153754_add_name_index_to_namespace.rb
deleted file mode 100644
index 14152a6dc07..00000000000
--- a/db/migrate/20161206153754_add_name_index_to_namespace.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddNameIndexToNamespace < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_concurrent_index(:namespaces, [:name, :parent_id], unique: true)
-  end
-
-  def down
-    if index_exists?(:namespaces, [:name, :parent_id])
-      remove_index :namespaces, [:name, :parent_id]
-    end
-  end
-end
diff --git a/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb b/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb
deleted file mode 100644
index 420f0ccb45c..00000000000
--- a/db/migrate/20161207231620_fixup_environment_name_uniqueness.rb
+++ /dev/null
@@ -1,53 +0,0 @@
-class FixupEnvironmentNameUniqueness < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Renaming non-unique environments'
-
-  def up
-    environments = Arel::Table.new(:environments)
-
-    # Get all [project_id, name] pairs that occur more than once
-    finder_sql = environments
-      .group(environments[:project_id], environments[:name])
-      .having(Arel.sql("COUNT(1)").gt(1))
-      .project(environments[:project_id], environments[:name])
-      .to_sql
-
-    conflicting = connection.exec_query(finder_sql)
-
-    conflicting.rows.each do |project_id, name|
-      fix_duplicates(project_id, name)
-    end
-  end
-
-  def down
-    # Nothing to do
-  end
-
-  # Rename conflicting environments by appending "-#{id}" to all but the first
-  def fix_duplicates(project_id, name)
-    environments = Arel::Table.new(:environments)
-    finder_sql = environments
-      .where(environments[:project_id].eq(project_id))
-      .where(environments[:name].eq(name))
-      .order(environments[:id].asc)
-      .project(environments[:id], environments[:name])
-      .to_sql
-
-    # Now we have the data for all the conflicting rows
-    conflicts = connection.exec_query(finder_sql).rows
-    conflicts.shift # Leave the first row alone
-
-    conflicts.each do |id, name|
-      update_sql =
-        Arel::UpdateManager.new
-          .table(environments)
-          .set(environments[:name] => name + "-" + id.to_s)
-          .where(environments[:id].eq(id))
-          .to_sql
-
-      connection.exec_update(update_sql, self.class.name, [])
-    end
-  end
-end
diff --git a/db/migrate/20161207231621_create_environment_name_unique_index.rb b/db/migrate/20161207231621_create_environment_name_unique_index.rb
deleted file mode 100644
index 28d22664405..00000000000
--- a/db/migrate/20161207231621_create_environment_name_unique_index.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable RemoveIndex
-class CreateEnvironmentNameUniqueIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Making a non-unique index into a unique index'
-
-  def up
-    remove_index :environments, [:project_id, :name]
-    add_concurrent_index :environments, [:project_id, :name], unique: true
-  end
-
-  def down
-    remove_index :environments, [:project_id, :name]
-    add_concurrent_index :environments, [:project_id, :name], unique: true
-  end
-end
diff --git a/db/migrate/20161207231626_add_environment_slug.rb b/db/migrate/20161207231626_add_environment_slug.rb
deleted file mode 100644
index 993b9bd3330..00000000000
--- a/db/migrate/20161207231626_add_environment_slug.rb
+++ /dev/null
@@ -1,68 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddEnvironmentSlug < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Adding NOT NULL column environments.slug with dependent data'
-
-  # Used to generate random suffixes for the slug
-  LETTERS = 'a'..'z'
-  NUMBERS = '0'..'9'
-  SUFFIX_CHARS = LETTERS.to_a + NUMBERS.to_a
-
-  def up
-    environments = Arel::Table.new(:environments)
-
-    add_column :environments, :slug, :string
-    finder = environments.project(:id, :name)
-
-    connection.exec_query(finder.to_sql).rows.each do |id, name|
-      updater = Arel::UpdateManager.new
-        .table(environments)
-        .set(environments[:slug] => generate_slug(name))
-        .where(environments[:id].eq(id))
-
-      connection.exec_update(updater.to_sql, self.class.name, [])
-    end
-
-    change_column_null :environments, :slug, false
-  end
-
-  def down
-    remove_column :environments, :slug
-  end
-
-  # Copy of the Environment#generate_slug implementation
-  def generate_slug(name)
-    # Lowercase letters and numbers only
-    slugified = name.to_s.downcase.gsub(/[^a-z0-9]/, '-')
-
-    # Must start with a letter
-    slugified = 'env-' + slugified unless LETTERS.cover?(slugified[0])
-
-    # Repeated dashes are invalid (OpenShift limitation)
-    slugified.gsub!(/\-+/, '-')
-
-    # Maximum length: 24 characters (OpenShift limitation)
-    slugified = slugified[0..23]
-
-    # Cannot end with a dash (Kubernetes label limitation)
-    slugified.chop! if slugified.end_with?('-')
-
-    # Add a random suffix, shortening the current string if necessary, if it
-    # has been slugified. This ensures uniqueness.
-    if slugified != name
-      slugified = slugified[0..16]
-      slugified << '-' unless slugified.end_with?('-')
-      slugified << random_suffix
-    end
-
-    slugified
-  end
-
-  def random_suffix
-    (0..5).map { SUFFIX_CHARS.sample }.join
-  end
-end
diff --git a/db/migrate/20161209153400_add_unique_index_for_environment_slug.rb b/db/migrate/20161209153400_add_unique_index_for_environment_slug.rb
deleted file mode 100644
index 57606a33cb9..00000000000
--- a/db/migrate/20161209153400_add_unique_index_for_environment_slug.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddUniqueIndexForEnvironmentSlug < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Adding a *unique* index to environments.slug'
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :environments, [:project_id, :slug], unique: true
-  end
-
-  def down
-    remove_index :environments, [:project_id, :slug] if index_exists? :environments, [:project_id, :slug]
-  end
-end
diff --git a/db/migrate/20161209165216_create_doorkeeper_openid_connect_tables.rb b/db/migrate/20161209165216_create_doorkeeper_openid_connect_tables.rb
deleted file mode 100644
index e8ea9cf8fda..00000000000
--- a/db/migrate/20161209165216_create_doorkeeper_openid_connect_tables.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-class CreateDoorkeeperOpenidConnectTables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :oauth_openid_requests do |t|
-      t.integer :access_grant_id, null: false
-      t.string :nonce, null: false
-    end
-
-    if Gitlab::Database.postgresql?
-      # add foreign key without validation to avoid downtime on PostgreSQL,
-      # also see db/post_migrate/20170209140523_validate_foreign_keys_on_oauth_openid_requests.rb
-      execute %q{
-        ALTER TABLE "oauth_openid_requests"
-          ADD CONSTRAINT "fk_oauth_openid_requests_oauth_access_grants_access_grant_id"
-          FOREIGN KEY ("access_grant_id")
-          REFERENCES "oauth_access_grants" ("id")
-          NOT VALID;
-      }
-    else
-      execute %q{
-        ALTER TABLE oauth_openid_requests
-          ADD CONSTRAINT fk_oauth_openid_requests_oauth_access_grants_access_grant_id
-          FOREIGN KEY (access_grant_id)
-          REFERENCES oauth_access_grants (id);
-      }
-    end
-  end
-
-  def down
-    drop_table :oauth_openid_requests
-  end
-end
diff --git a/db/migrate/20161212142807_add_lower_path_index_to_routes.rb b/db/migrate/20161212142807_add_lower_path_index_to_routes.rb
deleted file mode 100644
index 92a12dbc699..00000000000
--- a/db/migrate/20161212142807_add_lower_path_index_to_routes.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddLowerPathIndexToRoutes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    execute 'CREATE INDEX CONCURRENTLY index_on_routes_lower_path ON routes (LOWER(path));'
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    remove_index :routes, name: :index_on_routes_lower_path if index_exists?(:routes, name: :index_on_routes_lower_path)
-  end
-end
diff --git a/db/migrate/20161213172958_change_slack_service_to_slack_notification_service.rb b/db/migrate/20161213172958_change_slack_service_to_slack_notification_service.rb
deleted file mode 100644
index babac6bfc4f..00000000000
--- a/db/migrate/20161213172958_change_slack_service_to_slack_notification_service.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class ChangeSlackServiceToSlackNotificationService < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  # This migration is a no-op, as it existed in an RC but we renamed
-  # SlackNotificationService back to SlackService:
-  #   https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8191#note_20310845
-  def change
-  end
-end
diff --git a/db/migrate/20161220141214_remove_dot_git_from_group_names.rb b/db/migrate/20161220141214_remove_dot_git_from_group_names.rb
deleted file mode 100644
index 5c0b083325e..00000000000
--- a/db/migrate/20161220141214_remove_dot_git_from_group_names.rb
+++ /dev/null
@@ -1,82 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveDotGitFromGroupNames < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  include Gitlab::ShellAdapter
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    invalid_groups.each do |group|
-      path_was = group['path']
-      path_was_wildcard = quote_string("#{path_was}/%")
-      path = quote_string(rename_path(path_was))
-
-      move_namespace(group['id'], path_was, path)
-
-      execute "UPDATE routes SET path = '#{path}' WHERE source_type = 'Namespace' AND source_id = #{group['id']}"
-      execute "UPDATE namespaces SET path = '#{path}' WHERE id = #{group['id']}"
-
-      select_all("SELECT id, path FROM routes WHERE path LIKE '#{path_was_wildcard}'").each do |route|
-        new_path = "#{path}/#{route['path'].split('/').last}"
-        execute "UPDATE routes SET path = '#{new_path}' WHERE id = #{route['id']}"
-      end
-    end
-  end
-
-  def down
-    # nothing to do here
-  end
-
-  private
-
-  def invalid_groups
-    select_all("SELECT id, path FROM namespaces WHERE type = 'Group' AND path LIKE '%.git'")
-  end
-
-  def route_exists?(path)
-    select_all("SELECT id, path FROM routes WHERE path = '#{quote_string(path)}'").present?
-  end
-
-  # Accepts invalid path like test.git and returns test_git or
-  # test_git1 if test_git already taken
-  def rename_path(path)
-    # To stay closer with original name and reduce risk of duplicates
-    # we rename suffix instead of removing it
-    path = path.sub(/\.git\z/, '_git')
-
-    counter = 0
-    base = path
-
-    while route_exists?(path)
-      counter += 1
-      path = "#{base}#{counter}"
-    end
-
-    path
-  end
-
-  def move_namespace(group_id, path_was, path)
-    repository_storages = select_all("SELECT distinct(repository_storage) FROM projects WHERE namespace_id = #{group_id}").map do |row|
-      row['repository_storage']
-    end.compact
-
-    # Move the namespace directory in all storages paths used by member projects
-    repository_storages.each do |repository_storage|
-      # Ensure old directory exists before moving it
-      gitlab_shell.add_namespace(repository_storage, path_was)
-
-      unless gitlab_shell.mv_namespace(repository_storage, path_was, path)
-        Rails.logger.error "Exception moving on shard #{repository_storage} from #{path_was} to #{path}"
-
-        # if we cannot move namespace directory we should rollback
-        # db changes in order to prevent out of sync between db and fs
-        raise Exception.new('namespace directory cannot be moved')
-      end
-    end
-
-    Gitlab::UploadsTransfer.new.rename_namespace(path_was, path)
-  end
-end
diff --git a/db/migrate/20161221152132_add_last_used_at_to_key.rb b/db/migrate/20161221152132_add_last_used_at_to_key.rb
deleted file mode 100644
index a5b3f2b6f4b..00000000000
--- a/db/migrate/20161221152132_add_last_used_at_to_key.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddLastUsedAtToKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :keys, :last_used_at, :datetime
-  end
-end
diff --git a/db/migrate/20161223034433_add_estimate_to_issuables_ce.rb b/db/migrate/20161223034433_add_estimate_to_issuables_ce.rb
deleted file mode 100644
index 75bea41387c..00000000000
--- a/db/migrate/20161223034433_add_estimate_to_issuables_ce.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class AddEstimateToIssuablesCe < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    unless column_exists?(:issues, :time_estimate)
-      add_column :issues, :time_estimate, :integer
-    end
-
-    unless column_exists?(:merge_requests, :time_estimate)
-      add_column :merge_requests, :time_estimate, :integer
-    end
-  end
-
-  def down
-    if column_exists?(:issues, :time_estimate)
-      remove_column :issues, :time_estimate
-    end
-
-    if column_exists?(:merge_requests, :time_estimate)
-      remove_column :merge_requests, :time_estimate
-    end
-  end
-end
diff --git a/db/migrate/20161223034646_create_timelogs_ce.rb b/db/migrate/20161223034646_create_timelogs_ce.rb
deleted file mode 100644
index 489a2b35dfd..00000000000
--- a/db/migrate/20161223034646_create_timelogs_ce.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateTimelogsCe < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    unless table_exists?(:timelogs)
-      create_table :timelogs do |t|
-        t.integer :time_spent, null: false
-        t.references :trackable, polymorphic: true
-        t.references :user
-
-        t.timestamps null: false
-      end
-
-      add_index :timelogs, [:trackable_type, :trackable_id]
-      add_index :timelogs, :user_id
-    end
-  end
-
-  def down
-    drop_table :timelogs if table_exists?(:timelogs)
-  end
-end
diff --git a/db/migrate/20161226122833_remove_dot_git_from_usernames.rb b/db/migrate/20161226122833_remove_dot_git_from_usernames.rb
deleted file mode 100644
index e3318780151..00000000000
--- a/db/migrate/20161226122833_remove_dot_git_from_usernames.rb
+++ /dev/null
@@ -1,110 +0,0 @@
-class RemoveDotGitFromUsernames < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  include Gitlab::ShellAdapter
-
-  DOWNTIME = false
-
-  def up
-    invalid_users.each do |user|
-      id = user['id']
-      namespace_id = user['namespace_id']
-      path_was = user['username']
-      path_was_wildcard = quote_string("#{path_was}/%")
-      path = quote_string(new_path(path_was))
-
-      move_namespace(namespace_id, path_was, path)
-
-      begin
-        execute "UPDATE routes SET path = '#{path}' WHERE source_type = 'Namespace' AND source_id = #{namespace_id}"
-        execute "UPDATE namespaces SET path = '#{path}' WHERE id = #{namespace_id}"
-        execute "UPDATE users SET username = '#{path}' WHERE id = #{id}"
-
-        select_all("SELECT id, path FROM routes WHERE path LIKE '#{path_was_wildcard}'").each do |route|
-          new_path = "#{path}/#{route['path'].split('/').last}"
-          execute "UPDATE routes SET path = '#{new_path}' WHERE id = #{route['id']}"
-        end
-      rescue => e
-        say("Couldn't update routes for path #{path_was} to #{path}")
-        # Move namespace back
-        move_namespace(namespace_id, path, path_was)
-
-        raise e
-      end
-    end
-  end
-
-  def down
-    # nothing to do here
-  end
-
-  private
-
-  def invalid_users
-    select_all("SELECT u.id, u.username, n.path AS namespace_path, n.id AS namespace_id FROM users u
-                INNER JOIN namespaces n ON n.owner_id = u.id
-                WHERE n.type is NULL AND n.path LIKE '%.git'")
-  end
-
-  def route_exists?(path)
-    select_all("SELECT id, path FROM routes WHERE path = '#{quote_string(path)}'").present?
-  end
-
-  def path_exists?(shard, repository_storage_path)
-    repository_storage_path && gitlab_shell.exists?(shard, repository_storage_path)
-  end
-
-  # Accepts invalid path like test.git and returns test_git or
-  # test_git1 if test_git already taken
-  def new_path(path)
-    # To stay closer with original name and reduce risk of duplicates
-    # we rename suffix instead of removing it
-    path = path.sub(/\.git\z/, '_git')
-
-    check_routes(path.dup, 0, path)
-  end
-
-  def check_routes(base, counter, path)
-    route_exists = route_exists?(path)
-
-    Gitlab.config.repositories.storages.each do |shard, _storage|
-      if route_exists || path_exists?(shard, path)
-        counter += 1
-        path = "#{base}#{counter}"
-
-        return check_routes(base, counter, path)
-      end
-    end
-
-    path
-  end
-
-  def move_namespace(namespace_id, path_was, path)
-    repository_storages = select_all("SELECT distinct(repository_storage) FROM projects WHERE namespace_id = #{namespace_id}").map do |row|
-      row['repository_storage']
-    end.compact
-
-    # Move the namespace directory in all storages used by member projects
-    repository_storages.each do |repository_storage|
-      # Ensure old directory exists before moving it
-      gitlab_shell.add_namespace(repository_storage, path_was)
-
-      unless gitlab_shell.mv_namespace(repository_storage, path_was, path)
-        Rails.logger.error "Exception moving on shard #{repository_storage} from #{path_was} to #{path}"
-
-        # if we cannot move namespace directory we should rollback
-        # db changes in order to prevent out of sync between db and fs
-        raise Exception.new('namespace directory cannot be moved')
-      end
-    end
-
-    begin
-      Gitlab::UploadsTransfer.new.rename_namespace(path_was, path)
-    rescue => e
-      if path.nil?
-        say("Couldn't find a storage path for #{namespace_id}, #{path_was} -- skipping")
-      else
-        raise e
-      end
-    end
-  end
-end
diff --git a/db/migrate/20161227192806_rename_slack_and_mattermost_notification_services.rb b/db/migrate/20161227192806_rename_slack_and_mattermost_notification_services.rb
deleted file mode 100644
index df5714278f2..00000000000
--- a/db/migrate/20161227192806_rename_slack_and_mattermost_notification_services.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# rubocop:disable Migration/UpdateColumnInBatches
-class RenameSlackAndMattermostNotificationServices < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:services, :type, 'SlackService') do |table, query|
-      query.where(table[:type].eq('SlackNotificationService'))
-    end
-
-    update_column_in_batches(:services, :type, 'MattermostService') do |table, query|
-      query.where(table[:type].eq('MattermostNotificationService'))
-    end
-  end
-
-  def down
-    update_column_in_batches(:services, :type, 'SlackNotificationService') do |table, query|
-      query.where(table[:type].eq('SlackService'))
-    end
-
-    update_column_in_batches(:services, :type, 'MattermostNotificationService') do |table, query|
-      query.where(table[:type].eq('MattermostService'))
-    end
-  end
-end
diff --git a/db/migrate/20161228124936_change_expires_at_to_date_in_personal_access_tokens.rb b/db/migrate/20161228124936_change_expires_at_to_date_in_personal_access_tokens.rb
deleted file mode 100644
index f9f8f11316d..00000000000
--- a/db/migrate/20161228124936_change_expires_at_to_date_in_personal_access_tokens.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/Datetime
-class ChangeExpiresAtToDateInPersonalAccessTokens < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-  DOWNTIME_REASON = 'This migration requires downtime because it alters expires_at column from datetime to date'
-
-  def up
-    change_column :personal_access_tokens, :expires_at, :date
-  end
-
-  def down
-    change_column :personal_access_tokens, :expires_at, :datetime
-  end
-end
diff --git a/db/migrate/20161228135550_add_impersonation_to_personal_access_tokens.rb b/db/migrate/20161228135550_add_impersonation_to_personal_access_tokens.rb
deleted file mode 100644
index 489d7fb8b75..00000000000
--- a/db/migrate/20161228135550_add_impersonation_to_personal_access_tokens.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddImpersonationToPersonalAccessTokens < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    add_column_with_default :personal_access_tokens, :impersonation, :boolean, default: false, allow_null: false
-  end
-
-  def down
-    remove_column :personal_access_tokens, :impersonation
-  end
-end
diff --git a/db/migrate/20170120131253_create_chat_teams.rb b/db/migrate/20170120131253_create_chat_teams.rb
deleted file mode 100644
index e9b9bd7bd2f..00000000000
--- a/db/migrate/20170120131253_create_chat_teams.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateChatTeams < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = "Adding a foreign key"
-
-  disable_ddl_transaction!
-
-  def change
-    create_table :chat_teams do |t|
-      t.references :namespace, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.string :team_id
-      t.string :name
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20170121123724_add_index_to_ci_builds_for_status_runner_id_and_type.rb b/db/migrate/20170121123724_add_index_to_ci_builds_for_status_runner_id_and_type.rb
deleted file mode 100644
index cc1a4d2db59..00000000000
--- a/db/migrate/20170121123724_add_index_to_ci_builds_for_status_runner_id_and_type.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToCiBuildsForStatusRunnerIdAndType < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_builds, [:status, :type, :runner_id]
-  end
-
-  def down
-    if index_exists?(:ci_builds, [:status, :type, :runner_id])
-      remove_index :ci_builds, column: [:status, :type, :runner_id]
-    end
-  end
-end
diff --git a/db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb b/db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb
deleted file mode 100644
index 1b83ce4cfe3..00000000000
--- a/db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToCiRunnersForIsShared < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_runners, :is_shared
-  end
-
-  def down
-    if index_exists?(:ci_runners, :is_shared)
-      remove_index :ci_runners, :is_shared
-    end
-  end
-end
diff --git a/db/migrate/20170124174637_add_foreign_keys_to_timelogs.rb b/db/migrate/20170124174637_add_foreign_keys_to_timelogs.rb
deleted file mode 100644
index ffd966be086..00000000000
--- a/db/migrate/20170124174637_add_foreign_keys_to_timelogs.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddForeignKeysToTimelogs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    change_table :timelogs do |t|
-      t.column :issue_id, :integer
-      t.column :merge_request_id, :integer
-    end
-
-    add_concurrent_index :timelogs, :issue_id
-    add_concurrent_index :timelogs, :merge_request_id
-
-    if Gitlab::Database.postgresql?
-      execute <<-EOF
-        ALTER TABLE timelogs ADD CONSTRAINT "fk_timelogs_issues_issue_id" FOREIGN KEY (issue_id) REFERENCES "issues" (id) ON DELETE CASCADE NOT VALID;
-        ALTER TABLE timelogs ADD CONSTRAINT "fk_timelogs_merge_requests_merge_request_id" FOREIGN KEY (merge_request_id) REFERENCES "merge_requests" (id) ON DELETE CASCADE NOT VALID;
-      EOF
-    else
-      execute "ALTER TABLE timelogs ADD CONSTRAINT fk_timelogs_issues_issue_id FOREIGN KEY (issue_id) REFERENCES issues(id) ON DELETE CASCADE;"
-      execute "ALTER TABLE timelogs ADD CONSTRAINT fk_timelogs_merge_requests_merge_request_id FOREIGN KEY (merge_request_id) REFERENCES merge_requests(id) ON DELETE CASCADE;"
-    end
-
-    Timelog.where(trackable_type: 'Issue').update_all("issue_id = trackable_id")
-    Timelog.where(trackable_type: 'MergeRequest').update_all("merge_request_id = trackable_id")
-  end
-
-  def down
-    Timelog.where('issue_id IS NOT NULL').update_all("trackable_id = issue_id, trackable_type = 'Issue'")
-    Timelog.where('merge_request_id IS NOT NULL').update_all("trackable_id = merge_request_id, trackable_type = 'MergeRequest'")
-
-    remove_foreign_key :timelogs, name: 'fk_timelogs_issues_issue_id'
-    remove_foreign_key :timelogs, name: 'fk_timelogs_merge_requests_merge_request_id'
-
-    remove_columns :timelogs, :issue_id, :merge_request_id
-  end
-end
diff --git a/db/migrate/20170124193147_add_two_factor_columns_to_namespaces.rb b/db/migrate/20170124193147_add_two_factor_columns_to_namespaces.rb
deleted file mode 100644
index 324e051666b..00000000000
--- a/db/migrate/20170124193147_add_two_factor_columns_to_namespaces.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddTwoFactorColumnsToNamespaces < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:namespaces, :require_two_factor_authentication, :boolean, default: false)
-    add_column_with_default(:namespaces, :two_factor_grace_period, :integer, default: 48)
-
-    add_concurrent_index(:namespaces, :require_two_factor_authentication)
-  end
-
-  def down
-    remove_column(:namespaces, :require_two_factor_authentication)
-    remove_column(:namespaces, :two_factor_grace_period)
-
-    remove_concurrent_index(:namespaces, :require_two_factor_authentication) if index_exists?(:namespaces, :require_two_factor_authentication)
-  end
-end
diff --git a/db/migrate/20170124193205_add_two_factor_columns_to_users.rb b/db/migrate/20170124193205_add_two_factor_columns_to_users.rb
deleted file mode 100644
index 6c80dbfc965..00000000000
--- a/db/migrate/20170124193205_add_two_factor_columns_to_users.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddTwoFactorColumnsToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:users, :require_two_factor_authentication_from_group, :boolean, default: false)
-    add_column_with_default(:users, :two_factor_grace_period, :integer, default: 48)
-  end
-
-  def down
-    remove_column(:users, :require_two_factor_authentication_from_group)
-    remove_column(:users, :two_factor_grace_period)
-  end
-end
diff --git a/db/migrate/20170126174819_add_terminal_max_session_time_to_application_settings.rb b/db/migrate/20170126174819_add_terminal_max_session_time_to_application_settings.rb
deleted file mode 100644
index 70f1669108a..00000000000
--- a/db/migrate/20170126174819_add_terminal_max_session_time_to_application_settings.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddTerminalMaxSessionTimeToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings, :terminal_max_session_time, :integer, default: 0, allow_null: false
-  end
-
-  def down
-    remove_column :application_settings, :terminal_max_session_time
-  end
-end
diff --git a/db/migrate/20170127032550_remove_backlog_lists_from_boards.rb b/db/migrate/20170127032550_remove_backlog_lists_from_boards.rb
deleted file mode 100644
index 2e2fecfa2a7..00000000000
--- a/db/migrate/20170127032550_remove_backlog_lists_from_boards.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class RemoveBacklogListsFromBoards < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    execute <<-SQL
-      DELETE FROM lists WHERE list_type = 0;
-    SQL
-  end
-
-  def down
-    execute <<-SQL
-      INSERT INTO lists (board_id, list_type, created_at, updated_at)
-      SELECT boards.id, 0, NOW(), NOW()
-      FROM boards;
-    SQL
-  end
-end
diff --git a/db/migrate/20170130204620_add_index_to_project_authorizations.rb b/db/migrate/20170130204620_add_index_to_project_authorizations.rb
deleted file mode 100644
index 28c4480e9c6..00000000000
--- a/db/migrate/20170130204620_add_index_to_project_authorizations.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToProjectAuthorizations < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    unless index_exists?(:project_authorizations, :project_id)
-      add_concurrent_index(:project_authorizations, :project_id)
-    end
-  end
-
-  def down
-    remove_index(:project_authorizations, :project_id) if
-      Gitlab::Database.postgresql?
-  end
-end
diff --git a/db/migrate/20170130221926_create_uploads.rb b/db/migrate/20170130221926_create_uploads.rb
deleted file mode 100644
index 7bf15ca4978..00000000000
--- a/db/migrate/20170130221926_create_uploads.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class CreateUploads < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :uploads do |t|
-      t.integer :size, limit: 8, null: false
-      t.string :path, null: false
-      t.string :checksum, limit: 64
-      t.references :model, polymorphic: true
-      t.string :uploader, null: false
-      t.datetime :created_at, null: false
-    end
-
-    add_index :uploads, :path
-    add_index :uploads, :checksum
-    add_index :uploads, [:model_id, :model_type]
-  end
-end
diff --git a/db/migrate/20170131221752_add_relative_position_to_issues.rb b/db/migrate/20170131221752_add_relative_position_to_issues.rb
deleted file mode 100644
index 126cb9e5415..00000000000
--- a/db/migrate/20170131221752_add_relative_position_to_issues.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddRelativePositionToIssues < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    add_column :issues, :relative_position, :integer
-
-    add_concurrent_index :issues, :relative_position
-  end
-
-  def down
-    remove_column :issues, :relative_position
-
-    remove_index :issues, :relative_position if index_exists? :issues, :relative_position
-  end
-end
diff --git a/db/migrate/20170204172458_add_name_to_route.rb b/db/migrate/20170204172458_add_name_to_route.rb
deleted file mode 100644
index e7c94aceb26..00000000000
--- a/db/migrate/20170204172458_add_name_to_route.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddNameToRoute < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :routes, :name, :string
-  end
-end
diff --git a/db/migrate/20170204181513_add_index_to_labels_for_type_and_project.rb b/db/migrate/20170204181513_add_index_to_labels_for_type_and_project.rb
deleted file mode 100644
index 746322885b1..00000000000
--- a/db/migrate/20170204181513_add_index_to_labels_for_type_and_project.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToLabelsForTypeAndProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :labels, [:type, :project_id]
-  end
-
-  def down
-    remove_index :labels, [:type, :project_id] if index_exists? :labels, [:type, :project_id]
-  end
-end
diff --git a/db/migrate/20170206071414_add_recaptcha_verified_to_spam_logs.rb b/db/migrate/20170206071414_add_recaptcha_verified_to_spam_logs.rb
deleted file mode 100644
index 06338ac943e..00000000000
--- a/db/migrate/20170206071414_add_recaptcha_verified_to_spam_logs.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddRecaptchaVerifiedToSpamLogs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:spam_logs, :recaptcha_verified, :boolean, default: false)
-  end
-
-  def down
-    remove_column(:spam_logs, :recaptcha_verified)
-  end
-end
diff --git a/db/migrate/20170206115204_add_column_ghost_to_users.rb b/db/migrate/20170206115204_add_column_ghost_to_users.rb
deleted file mode 100644
index 4b86814e05d..00000000000
--- a/db/migrate/20170206115204_add_column_ghost_to_users.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddColumnGhostToUsers < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    add_column :users, :ghost, :boolean
-  end
-
-  def down
-    remove_column :users, :ghost
-  end
-end
diff --git a/db/migrate/20170210062829_add_index_to_labels_for_title_and_project.rb b/db/migrate/20170210062829_add_index_to_labels_for_title_and_project.rb
deleted file mode 100644
index d0b440b8ccb..00000000000
--- a/db/migrate/20170210062829_add_index_to_labels_for_title_and_project.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToLabelsForTitleAndProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :labels, :title
-    add_concurrent_index :labels, :project_id
-  end
-
-  def down
-    remove_index :labels, :title if index_exists? :labels, :title
-    remove_index :labels, :project_id if index_exists? :labels, :project_id
-  end
-end
diff --git a/db/migrate/20170210075922_add_index_to_ci_trigger_requests_for_commit_id.rb b/db/migrate/20170210075922_add_index_to_ci_trigger_requests_for_commit_id.rb
deleted file mode 100644
index 753d6c77e35..00000000000
--- a/db/migrate/20170210075922_add_index_to_ci_trigger_requests_for_commit_id.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexToCiTriggerRequestsForCommitId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_trigger_requests, :commit_id
-  end
-
-  def down
-    remove_index :ci_trigger_requests, :commit_id if index_exists? :ci_trigger_requests, :commit_id
-  end
-end
diff --git a/db/migrate/20170210103609_add_index_to_user_agent_detail.rb b/db/migrate/20170210103609_add_index_to_user_agent_detail.rb
deleted file mode 100644
index a2d6528ea82..00000000000
--- a/db/migrate/20170210103609_add_index_to_user_agent_detail.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIndexToUserAgentDetail < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :user_agent_details, [:subject_id, :subject_type]
-  end
-
-  def down
-    remove_index :user_agent_details, [:subject_id, :subject_type] if index_exists? :user_agent_details, [:subject_id, :subject_type]
-  end
-end
diff --git a/db/migrate/20170210131347_add_unique_ips_limit_to_application_settings.rb b/db/migrate/20170210131347_add_unique_ips_limit_to_application_settings.rb
deleted file mode 100644
index c286354f476..00000000000
--- a/db/migrate/20170210131347_add_unique_ips_limit_to_application_settings.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class AddUniqueIpsLimitToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-  disable_ddl_transaction!
-
-  def up
-    add_column :application_settings, :unique_ips_limit_per_user, :integer
-    add_column :application_settings, :unique_ips_limit_time_window, :integer
-    add_column_with_default :application_settings, :unique_ips_limit_enabled, :boolean, default: false
-  end
-
-  def down
-    remove_column :application_settings, :unique_ips_limit_per_user
-    remove_column :application_settings, :unique_ips_limit_time_window
-    remove_column :application_settings, :unique_ips_limit_enabled
-  end
-end
diff --git a/db/migrate/20170214084746_add_default_artifacts_expiration_to_application_settings.rb b/db/migrate/20170214084746_add_default_artifacts_expiration_to_application_settings.rb
deleted file mode 100644
index 84814c2f8f2..00000000000
--- a/db/migrate/20170214084746_add_default_artifacts_expiration_to_application_settings.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddDefaultArtifactsExpirationToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings,
-      :default_artifacts_expire_in, :string,
-      null: false, default: '0'
-  end
-end
diff --git a/db/migrate/20170216135621_add_index_for_latest_successful_pipeline.rb b/db/migrate/20170216135621_add_index_for_latest_successful_pipeline.rb
deleted file mode 100644
index be393bd496d..00000000000
--- a/db/migrate/20170216135621_add_index_for_latest_successful_pipeline.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable RemoveIndex
-class AddIndexForLatestSuccessfulPipeline < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:ci_commits, [:gl_project_id, :ref, :status])
-  end
-
-  def down
-    remove_index :ci_commits, [:gl_project_id, :ref, :status] if index_exists? :ci_commits, [:gl_project_id, :ref, :status]
-  end
-end
diff --git a/db/migrate/20170216141440_drop_index_for_builds_project_status.rb b/db/migrate/20170216141440_drop_index_for_builds_project_status.rb
deleted file mode 100644
index 7edf7dd7e10..00000000000
--- a/db/migrate/20170216141440_drop_index_for_builds_project_status.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# rubocop:disable RemoveIndex
-class DropIndexForBuildsProjectStatus < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  def change
-    remove_index(:ci_commits, column: [:gl_project_id, :status])
-  end
-end
diff --git a/db/migrate/20170217132157_rename_merge_when_build_succeeds.rb b/db/migrate/20170217132157_rename_merge_when_build_succeeds.rb
deleted file mode 100644
index ee8838eff56..00000000000
--- a/db/migrate/20170217132157_rename_merge_when_build_succeeds.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameMergeWhenBuildSucceeds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Renaming the column merge_when_build_succeeds'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    rename_column :merge_requests, :merge_when_build_succeeds, :merge_when_pipeline_succeeds
-  end
-end
diff --git a/db/migrate/20170217151947_rename_only_allow_merge_if_build_succeeds.rb b/db/migrate/20170217151947_rename_only_allow_merge_if_build_succeeds.rb
deleted file mode 100644
index 5d35216f3af..00000000000
--- a/db/migrate/20170217151947_rename_only_allow_merge_if_build_succeeds.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameOnlyAllowMergeIfBuildSucceeds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = true
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  DOWNTIME_REASON = 'Renaming the column only_allow_merge_if_build_succeeds'
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    rename_column :projects, :only_allow_merge_if_build_succeeds, :only_allow_merge_if_pipeline_succeeds
-  end
-end
diff --git a/db/migrate/20170217151948_add_owner_id_to_triggers.rb b/db/migrate/20170217151948_add_owner_id_to_triggers.rb
deleted file mode 100644
index a28711ae59a..00000000000
--- a/db/migrate/20170217151948_add_owner_id_to_triggers.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddOwnerIdToTriggers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_triggers, :owner_id, :integer
-  end
-end
diff --git a/db/migrate/20170217151949_add_description_to_triggers.rb b/db/migrate/20170217151949_add_description_to_triggers.rb
deleted file mode 100644
index 27cb4b3ab31..00000000000
--- a/db/migrate/20170217151949_add_description_to_triggers.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddDescriptionToTriggers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_triggers, :description, :string
-  end
-end
diff --git a/db/migrate/20170222111732_create_gpg_keys.rb b/db/migrate/20170222111732_create_gpg_keys.rb
deleted file mode 100644
index 012e8ef5854..00000000000
--- a/db/migrate/20170222111732_create_gpg_keys.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class CreateGpgKeys < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :gpg_keys do |t|
-      t.timestamps_with_timezone null: false
-
-      t.references :user, index: true, foreign_key: { on_delete: :cascade }
-
-      t.binary :primary_keyid
-      t.binary :fingerprint
-
-      t.text :key
-
-      t.index :primary_keyid, unique: true, length: mysql_compatible_index_length
-      t.index :fingerprint, unique: true, length: mysql_compatible_index_length
-    end
-  end
-end
diff --git a/db/migrate/20170222143317_drop_ci_projects.rb b/db/migrate/20170222143317_drop_ci_projects.rb
deleted file mode 100644
index 9f3aa2da382..00000000000
--- a/db/migrate/20170222143317_drop_ci_projects.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-class DropCiProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    drop_table :ci_projects
-  end
-
-  def down
-    create_table "ci_projects", force: :cascade do |t|
-      t.string "name"
-      t.integer "timeout", default: 3600, null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "token"
-      t.string "default_ref"
-      t.string "path"
-      t.boolean "always_build", default: false, null: false
-      t.integer "polling_interval"
-      t.boolean "public", default: false, null: false
-      t.string "ssh_url_to_repo"
-      t.integer "gitlab_id"
-      t.boolean "allow_git_fetch", default: true, null: false
-      t.string "email_recipients", default: "", null: false
-      t.boolean "email_add_pusher", default: true, null: false
-      t.boolean "email_only_broken_builds", default: true, null: false
-      t.string "skip_refs"
-      t.string "coverage_regex"
-      t.boolean "shared_runners_enabled", default: false
-      t.text "generated_yaml_config"
-    end
-  end
-end
diff --git a/db/migrate/20170222143500_remove_old_project_id_columns.rb b/db/migrate/20170222143500_remove_old_project_id_columns.rb
deleted file mode 100644
index 356dee4a060..00000000000
--- a/db/migrate/20170222143500_remove_old_project_id_columns.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# rubocop:disable RemoveIndex
-class RemoveOldProjectIdColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Unused columns are being removed.'
-
-  def up
-    remove_index :ci_builds, :project_id if
-      index_exists?(:ci_builds, :project_id)
-
-    remove_column :ci_builds, :project_id
-    remove_column :ci_commits, :project_id
-    remove_column :ci_runner_projects, :project_id
-    remove_column :ci_triggers, :project_id
-    remove_column :ci_variables, :project_id
-  end
-
-  def down
-    add_column :ci_builds, :project_id, :integer
-    add_column :ci_commits, :project_id, :integer
-    add_column :ci_runner_projects, :project_id, :integer
-    add_column :ci_triggers, :project_id, :integer
-    add_column :ci_variables, :project_id, :integer
-
-    add_concurrent_index :ci_builds, :project_id
-  end
-end
diff --git a/db/migrate/20170222143603_rename_gl_project_id_to_project_id.rb b/db/migrate/20170222143603_rename_gl_project_id_to_project_id.rb
deleted file mode 100644
index 390b2c33d91..00000000000
--- a/db/migrate/20170222143603_rename_gl_project_id_to_project_id.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class RenameGlProjectIdToProjectId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Renaming an actively used column.'
-
-  def change
-    rename_column :ci_builds, :gl_project_id, :project_id
-    rename_column :ci_commits, :gl_project_id, :project_id
-    rename_column :ci_runner_projects, :gl_project_id, :project_id
-    rename_column :ci_triggers, :gl_project_id, :project_id
-    rename_column :ci_variables, :gl_project_id, :project_id
-  end
-end
diff --git a/db/migrate/20170301101006_add_ci_runner_namespaces.rb b/db/migrate/20170301101006_add_ci_runner_namespaces.rb
deleted file mode 100644
index aa2d8a14242..00000000000
--- a/db/migrate/20170301101006_add_ci_runner_namespaces.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class AddCiRunnerNamespaces < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :ci_runner_namespaces do |t|
-      t.integer :runner_id
-      t.integer :namespace_id
-
-      t.index [:runner_id, :namespace_id], unique: true
-      t.index :namespace_id
-      t.foreign_key :ci_runners, column: :runner_id, on_delete: :cascade
-      t.foreign_key :namespaces, column: :namespace_id, on_delete: :cascade
-    end
-  end
-end
diff --git a/db/migrate/20170301125302_add_printing_merge_request_link_enabled_to_project.rb b/db/migrate/20170301125302_add_printing_merge_request_link_enabled_to_project.rb
deleted file mode 100644
index a7efeb8ae6f..00000000000
--- a/db/migrate/20170301125302_add_printing_merge_request_link_enabled_to_project.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable Migration/UpdateLargeTable
-class AddPrintingMergeRequestLinkEnabledToProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:projects, :printing_merge_request_link_enabled, :boolean, default: true)
-  end
-
-  def down
-    remove_column(:projects, :printing_merge_request_link_enabled)
-  end
-end
diff --git a/db/migrate/20170301195939_rename_ci_commits_to_ci_pipelines.rb b/db/migrate/20170301195939_rename_ci_commits_to_ci_pipelines.rb
deleted file mode 100644
index 791e9c845a6..00000000000
--- a/db/migrate/20170301195939_rename_ci_commits_to_ci_pipelines.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class RenameCiCommitsToCiPipelines < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = 'Rename table ci_commits to ci_pipelines'
-
-  def change
-    rename_table 'ci_commits', 'ci_pipelines'
-  end
-end
diff --git a/db/migrate/20170301205639_remove_unused_ci_tables_and_columns.rb b/db/migrate/20170301205639_remove_unused_ci_tables_and_columns.rb
deleted file mode 100644
index 08a11aee992..00000000000
--- a/db/migrate/20170301205639_remove_unused_ci_tables_and_columns.rb
+++ /dev/null
@@ -1,84 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-class RemoveUnusedCiTablesAndColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON =
-    'Remove unused columns in used tables.' \
-    ' Downtime required in case Rails caches them'
-
-  def up
-    %w[ci_application_settings
-       ci_events
-       ci_jobs
-       ci_sessions
-       ci_taggings
-       ci_tags].each do |table|
-      drop_table(table)
-    end
-
-    remove_column :ci_pipelines, :push_data, :text
-    remove_column :ci_builds, :job_id, :integer if column_exists?(:ci_builds, :job_id)
-    remove_column :ci_builds, :deploy, :boolean
-  end
-
-  def down
-    add_column :ci_builds, :deploy, :boolean
-    add_column :ci_builds, :job_id, :integer
-    add_column :ci_pipelines, :push_data, :text
-
-    create_table "ci_tags", force: :cascade do |t|
-      t.string "name"
-      t.integer "taggings_count", default: 0
-    end
-
-    create_table "ci_taggings", force: :cascade do |t|
-      t.integer "tag_id"
-      t.integer "taggable_id"
-      t.string "taggable_type"
-      t.integer "tagger_id"
-      t.string "tagger_type"
-      t.string "context", limit: 128
-      t.datetime "created_at"
-    end
-
-    add_index "ci_taggings", %w[taggable_id taggable_type context]
-
-    create_table "ci_sessions", force: :cascade do |t|
-      t.string "session_id", null: false
-      t.text "data"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    create_table "ci_jobs", force: :cascade do |t|
-      t.integer "project_id", null: false
-      t.text "commands"
-      t.boolean "active", default: true, null: false
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "name"
-      t.boolean "build_branches", default: true, null: false
-      t.boolean "build_tags", default: false, null: false
-      t.string "job_type", default: "parallel"
-      t.string "refs"
-      t.datetime "deleted_at"
-    end
-
-    create_table "ci_events", force: :cascade do |t|
-      t.integer "project_id"
-      t.integer "user_id"
-      t.integer "is_admin"
-      t.text "description"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-
-    create_table "ci_application_settings", force: :cascade do |t|
-      t.boolean "all_broken_builds"
-      t.boolean "add_pusher"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-    end
-  end
-end
diff --git a/db/migrate/20170305180853_add_auto_cancel_pending_pipelines_to_project.rb b/db/migrate/20170305180853_add_auto_cancel_pending_pipelines_to_project.rb
deleted file mode 100644
index 3e317bb5248..00000000000
--- a/db/migrate/20170305180853_add_auto_cancel_pending_pipelines_to_project.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddAutoCancelPendingPipelinesToProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:projects, :auto_cancel_pending_pipelines, :integer, default: 0)
-  end
-
-  def down
-    remove_column(:projects, :auto_cancel_pending_pipelines)
-  end
-end
diff --git a/db/migrate/20170305203726_add_owner_id_foreign_key.rb b/db/migrate/20170305203726_add_owner_id_foreign_key.rb
deleted file mode 100644
index b3bd441ff9c..00000000000
--- a/db/migrate/20170305203726_add_owner_id_foreign_key.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddOwnerIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key :ci_triggers, :users, column: :owner_id, on_delete: :cascade
-  end
-
-  def down
-    remove_foreign_key :ci_triggers, column: :owner_id
-  end
-end
diff --git a/db/migrate/20170307125949_add_last_activity_on_to_users.rb b/db/migrate/20170307125949_add_last_activity_on_to_users.rb
deleted file mode 100644
index 42331eab753..00000000000
--- a/db/migrate/20170307125949_add_last_activity_on_to_users.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddLastActivityOnToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :users, :last_activity_on, :date
-  end
-end
diff --git a/db/migrate/20170309173138_create_protected_tags.rb b/db/migrate/20170309173138_create_protected_tags.rb
deleted file mode 100644
index f518b500bd4..00000000000
--- a/db/migrate/20170309173138_create_protected_tags.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateProtectedTags < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  GITLAB_ACCESS_MASTER = 40
-
-  def change
-    create_table :protected_tags do |t|
-      t.integer :project_id, null: false
-      t.string :name, null: false
-      t.timestamps null: false
-    end
-
-    add_index :protected_tags, :project_id
-
-    create_table :protected_tag_create_access_levels do |t|
-      t.references :protected_tag, index: { name: "index_protected_tag_create_access" }, foreign_key: true, null: false
-      t.integer :access_level, default: GITLAB_ACCESS_MASTER, null: true
-      t.references :user, foreign_key: true, index: true
-      t.integer :group_id
-      t.timestamps null: false
-    end
-
-    add_foreign_key :protected_tag_create_access_levels, :namespaces, column: :group_id # rubocop: disable Migration/AddConcurrentForeignKey
-  end
-end
diff --git a/db/migrate/20170312114329_add_auto_canceled_by_id_to_pipeline.rb b/db/migrate/20170312114329_add_auto_canceled_by_id_to_pipeline.rb
deleted file mode 100644
index 26187a9e8b3..00000000000
--- a/db/migrate/20170312114329_add_auto_canceled_by_id_to_pipeline.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddAutoCanceledByIdToPipeline < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_pipelines, :auto_canceled_by_id, :integer
-  end
-end
diff --git a/db/migrate/20170312114529_add_auto_canceled_by_id_foreign_key_to_pipeline.rb b/db/migrate/20170312114529_add_auto_canceled_by_id_foreign_key_to_pipeline.rb
deleted file mode 100644
index a2b5c1c4533..00000000000
--- a/db/migrate/20170312114529_add_auto_canceled_by_id_foreign_key_to_pipeline.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-class AddAutoCanceledByIdForeignKeyToPipeline < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    on_delete =
-      if Gitlab::Database.mysql?
-        :nullify
-      else
-        'SET NULL'
-      end
-
-    add_concurrent_foreign_key :ci_pipelines, :ci_pipelines, column: :auto_canceled_by_id, on_delete: on_delete
-  end
-
-  def down
-    remove_foreign_key :ci_pipelines, column: :auto_canceled_by_id
-  end
-end
diff --git a/db/migrate/20170313213916_add_index_to_user_ghost.rb b/db/migrate/20170313213916_add_index_to_user_ghost.rb
deleted file mode 100644
index 66e57b444a0..00000000000
--- a/db/migrate/20170313213916_add_index_to_user_ghost.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# rubocop:disable RemoveIndex
-class AddIndexToUserGhost < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :users, :ghost
-  end
-
-  def down
-    remove_index :users, :ghost
-  end
-end
diff --git a/db/migrate/20170314082049_create_system_note_metadata.rb b/db/migrate/20170314082049_create_system_note_metadata.rb
deleted file mode 100644
index d0cc6e3be36..00000000000
--- a/db/migrate/20170314082049_create_system_note_metadata.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateSystemNoteMetadata < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :system_note_metadata do |t|
-      t.references :note, null: false
-      t.integer :commit_count
-      t.string :action
-
-      t.timestamps null: false
-    end
-
-    add_concurrent_foreign_key :system_note_metadata, :notes, column: :note_id
-  end
-
-  def down
-    drop_table :system_note_metadata
-  end
-end
diff --git a/db/migrate/20170315174634_revert_add_notified_of_own_activity_to_users.rb b/db/migrate/20170315174634_revert_add_notified_of_own_activity_to_users.rb
deleted file mode 100644
index 8773c7ea657..00000000000
--- a/db/migrate/20170315174634_revert_add_notified_of_own_activity_to_users.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# rubocop:disable Migration/RemoveColumn
-# rubocop:disable Migration/UpdateLargeTable
-class RevertAddNotifiedOfOwnActivityToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    if our_column_exists?
-      remove_column :users, :notified_of_own_activity
-    end
-  end
-
-  def down
-    unless our_column_exists?
-      add_column_with_default :users, :notified_of_own_activity, :boolean, default: false
-    end
-  end
-
-  private
-
-  def our_column_exists?
-    column_exists?(:users, :notified_of_own_activity)
-  end
-end
diff --git a/db/migrate/20170315194013_add_closed_at_to_issues.rb b/db/migrate/20170315194013_add_closed_at_to_issues.rb
deleted file mode 100644
index 0b06ee6e74c..00000000000
--- a/db/migrate/20170315194013_add_closed_at_to_issues.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddClosedAtToIssues < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :issues, :closed_at, :datetime
-  end
-end
diff --git a/db/migrate/20170316061730_readd_notified_of_own_activity_to_users.rb b/db/migrate/20170316061730_readd_notified_of_own_activity_to_users.rb
deleted file mode 100644
index 82029dfd3fc..00000000000
--- a/db/migrate/20170316061730_readd_notified_of_own_activity_to_users.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class ReaddNotifiedOfOwnActivityToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def change
-    add_column :users, :notified_of_own_activity, :boolean
-  end
-end
diff --git a/db/migrate/20170316163845_move_uploads_to_system_dir.rb b/db/migrate/20170316163845_move_uploads_to_system_dir.rb
deleted file mode 100644
index d24527b55cd..00000000000
--- a/db/migrate/20170316163845_move_uploads_to_system_dir.rb
+++ /dev/null
@@ -1,59 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MoveUploadsToSystemDir < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-  DIRECTORIES_TO_MOVE = %w(user project note group appearance).freeze
-
-  def up
-    return unless file_storage?
-
-    FileUtils.mkdir_p(new_upload_dir)
-
-    DIRECTORIES_TO_MOVE.each do |dir|
-      source = File.join(old_upload_dir, dir)
-      destination = File.join(new_upload_dir, dir)
-      next unless File.directory?(source)
-      next if File.directory?(destination)
-
-      say "Moving #{source} -> #{destination}"
-      FileUtils.mv(source, destination)
-      FileUtils.ln_s(destination, source)
-    end
-  end
-
-  def down
-    return unless file_storage?
-    return unless File.directory?(new_upload_dir)
-
-    DIRECTORIES_TO_MOVE.each do |dir|
-      source = File.join(new_upload_dir, dir)
-      destination = File.join(old_upload_dir, dir)
-      next unless File.directory?(source)
-      next if File.directory?(destination) && !File.symlink?(destination)
-
-      say "Moving #{source} -> #{destination}"
-      FileUtils.rm(destination) if File.symlink?(destination)
-      FileUtils.mv(source, destination)
-    end
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-
-  def base_directory
-    Rails.root
-  end
-
-  def old_upload_dir
-    File.join(base_directory, "public", "uploads")
-  end
-
-  def new_upload_dir
-    File.join(base_directory, "public", "uploads", "-", "system")
-  end
-end
diff --git a/db/migrate/20170317203554_index_routes_path_for_like.rb b/db/migrate/20170317203554_index_routes_path_for_like.rb
deleted file mode 100644
index a1bee3c8783..00000000000
--- a/db/migrate/20170317203554_index_routes_path_for_like.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class IndexRoutesPathForLike < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  INDEX_NAME = 'index_routes_on_path_text_pattern_ops'
-
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    unless index_exists?(:routes, :path, name: INDEX_NAME)
-      execute("CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON routes (path varchar_pattern_ops);")
-    end
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-    return unless index_exists?(:routes, :path, name: INDEX_NAME)
-
-    remove_concurrent_index_by_name(:routes, INDEX_NAME)
-  end
-end
diff --git a/db/migrate/20170320173259_migrate_assignees.rb b/db/migrate/20170320173259_migrate_assignees.rb
deleted file mode 100644
index 43a90758bd9..00000000000
--- a/db/migrate/20170320173259_migrate_assignees.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class MigrateAssignees < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    # Optimisation: this accounts for most of the invalid assignee IDs on GitLab.com
-    update_column_in_batches(:issues, :assignee_id, nil) do |table, query|
-      query.where(table[:assignee_id].eq(0))
-    end
-
-    users = Arel::Table.new(:users)
-
-    update_column_in_batches(:issues, :assignee_id, nil) do |table, query|
-      query.where(table[:assignee_id].not_eq(nil)\
-        .and(
-          users.project("true").where(users[:id].eq(table[:assignee_id])).exists.not
-        ))
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170322013926_create_container_repository.rb b/db/migrate/20170322013926_create_container_repository.rb
deleted file mode 100644
index b1e778671b2..00000000000
--- a/db/migrate/20170322013926_create_container_repository.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateContainerRepository < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :container_repositories do |t|
-      t.references :project, foreign_key: true, index: true, null: false
-      t.string :name, null: false
-
-      t.timestamps null: false
-    end
-
-    add_index :container_repositories, [:project_id, :name], unique: true
-  end
-end
diff --git a/db/migrate/20170327091750_add_created_at_index_to_deployments.rb b/db/migrate/20170327091750_add_created_at_index_to_deployments.rb
deleted file mode 100644
index f29fff7d5b9..00000000000
--- a/db/migrate/20170327091750_add_created_at_index_to_deployments.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddCreatedAtIndexToDeployments < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :deployments, :created_at
-  end
-
-  def down
-    remove_concurrent_index :deployments, :created_at
-  end
-end
diff --git a/db/migrate/20170328010804_add_uuid_to_application_settings.rb b/db/migrate/20170328010804_add_uuid_to_application_settings.rb
deleted file mode 100644
index 95a01c2dc8f..00000000000
--- a/db/migrate/20170328010804_add_uuid_to_application_settings.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class AddUuidToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :application_settings, :uuid, :string
-    execute("UPDATE application_settings SET uuid = #{quote(SecureRandom.uuid)}")
-  end
-
-  def down
-    remove_column :application_settings, :uuid
-  end
-end
diff --git a/db/migrate/20170329095325_add_ref_to_triggers.rb b/db/migrate/20170329095325_add_ref_to_triggers.rb
deleted file mode 100644
index db09b36db17..00000000000
--- a/db/migrate/20170329095325_add_ref_to_triggers.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRefToTriggers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_triggers, :ref, :string
-  end
-end
diff --git a/db/migrate/20170329095907_create_ci_trigger_schedules.rb b/db/migrate/20170329095907_create_ci_trigger_schedules.rb
deleted file mode 100644
index 7f759f908cd..00000000000
--- a/db/migrate/20170329095907_create_ci_trigger_schedules.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class CreateCiTriggerSchedules < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :ci_trigger_schedules do |t|
-      t.integer "project_id"
-      t.integer "trigger_id", null: false
-      t.datetime "deleted_at"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "cron"
-      t.string "cron_timezone"
-      t.datetime "next_run_at"
-    end
-
-    add_index :ci_trigger_schedules, :next_run_at
-    add_index :ci_trigger_schedules, :project_id
-  end
-end
diff --git a/db/migrate/20170329124448_add_polling_interval_multiplier_to_application_settings.rb b/db/migrate/20170329124448_add_polling_interval_multiplier_to_application_settings.rb
deleted file mode 100644
index 17307879a2a..00000000000
--- a/db/migrate/20170329124448_add_polling_interval_multiplier_to_application_settings.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddPollingIntervalMultiplierToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings, :polling_interval_multiplier, :decimal, default: 1, allow_null: false
-  end
-
-  def down
-    remove_column :application_settings, :polling_interval_multiplier
-  end
-end
diff --git a/db/migrate/20170330141723_disable_invalid_service_templates2.rb b/db/migrate/20170330141723_disable_invalid_service_templates2.rb
deleted file mode 100644
index f09f3b3e355..00000000000
--- a/db/migrate/20170330141723_disable_invalid_service_templates2.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# This is the same as DisableInvalidServiceTemplates. Later migrations may have
-# inadvertently enabled some invalid templates again.
-#
-class DisableInvalidServiceTemplates2 < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  unless defined?(Service)
-    class Service < ActiveRecord::Base
-      self.inheritance_column = nil
-    end
-  end
-
-  def up
-    Service.where(template: true, active: true).each do |template|
-      template.update(active: false) unless template.valid?
-    end
-  end
-end
diff --git a/db/migrate/20170402231018_remove_index_for_users_current_sign_in_at.rb b/db/migrate/20170402231018_remove_index_for_users_current_sign_in_at.rb
deleted file mode 100644
index 4c417ce2f71..00000000000
--- a/db/migrate/20170402231018_remove_index_for_users_current_sign_in_at.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-class RemoveIndexForUsersCurrentSignInAt < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    remove_concurrent_index :users, :current_sign_in_at
-  end
-
-  def down
-    add_concurrent_index :users, :current_sign_in_at
-  end
-end
diff --git a/db/migrate/20170404163427_add_trigger_id_foreign_key.rb b/db/migrate/20170404163427_add_trigger_id_foreign_key.rb
deleted file mode 100644
index f35730c8e45..00000000000
--- a/db/migrate/20170404163427_add_trigger_id_foreign_key.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddTriggerIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key :ci_trigger_schedules, :ci_triggers, column: :trigger_id, on_delete: :cascade
-  end
-
-  def down
-    remove_foreign_key :ci_trigger_schedules, column: :trigger_id
-  end
-end
diff --git a/db/migrate/20170405080720_add_import_jid_to_projects.rb b/db/migrate/20170405080720_add_import_jid_to_projects.rb
deleted file mode 100644
index ddbea9d7ab6..00000000000
--- a/db/migrate/20170405080720_add_import_jid_to_projects.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddImportJidToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :projects, :import_jid, :string
-  end
-end
diff --git a/db/migrate/20170406114958_add_auto_canceled_by_id_to_ci_builds.rb b/db/migrate/20170406114958_add_auto_canceled_by_id_to_ci_builds.rb
deleted file mode 100644
index ba43a070587..00000000000
--- a/db/migrate/20170406114958_add_auto_canceled_by_id_to_ci_builds.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddAutoCanceledByIdToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :auto_canceled_by_id, :integer
-  end
-end
diff --git a/db/migrate/20170406115029_add_auto_canceled_by_id_foreign_key_to_ci_builds.rb b/db/migrate/20170406115029_add_auto_canceled_by_id_foreign_key_to_ci_builds.rb
deleted file mode 100644
index 2ec281e20c1..00000000000
--- a/db/migrate/20170406115029_add_auto_canceled_by_id_foreign_key_to_ci_builds.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-class AddAutoCanceledByIdForeignKeyToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    on_delete =
-      if Gitlab::Database.mysql?
-        :nullify
-      else
-        'SET NULL'
-      end
-
-    add_concurrent_foreign_key :ci_builds, :ci_pipelines, column: :auto_canceled_by_id, on_delete: on_delete
-  end
-
-  def down
-    remove_foreign_key :ci_builds, column: :auto_canceled_by_id
-  end
-end
diff --git a/db/migrate/20170407114956_add_ref_to_ci_trigger_schedule.rb b/db/migrate/20170407114956_add_ref_to_ci_trigger_schedule.rb
deleted file mode 100644
index 5d156b7ef2e..00000000000
--- a/db/migrate/20170407114956_add_ref_to_ci_trigger_schedule.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRefToCiTriggerSchedule < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_trigger_schedules, :ref, :string
-  end
-end
diff --git a/db/migrate/20170407122426_add_active_to_ci_trigger_schedule.rb b/db/migrate/20170407122426_add_active_to_ci_trigger_schedule.rb
deleted file mode 100644
index 33295bd3f2e..00000000000
--- a/db/migrate/20170407122426_add_active_to_ci_trigger_schedule.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddActiveToCiTriggerSchedule < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_trigger_schedules, :active, :boolean
-  end
-end
diff --git a/db/migrate/20170407135259_add_foreigh_key_trigger_requests_trigger.rb b/db/migrate/20170407135259_add_foreigh_key_trigger_requests_trigger.rb
deleted file mode 100644
index 9aaa4d0eddf..00000000000
--- a/db/migrate/20170407135259_add_foreigh_key_trigger_requests_trigger.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddForeighKeyTriggerRequestsTrigger < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:ci_trigger_requests, :ci_triggers, column: :trigger_id)
-  end
-
-  def down
-    remove_foreign_key(:ci_trigger_requests, column: :trigger_id)
-  end
-end
diff --git a/db/migrate/20170407140450_add_index_to_next_run_at_and_active.rb b/db/migrate/20170407140450_add_index_to_next_run_at_and_active.rb
deleted file mode 100644
index 0bde4f69b3b..00000000000
--- a/db/migrate/20170407140450_add_index_to_next_run_at_and_active.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexToNextRunAtAndActive < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_trigger_schedules, [:active, :next_run_at]
-  end
-
-  def down
-    remove_concurrent_index :ci_trigger_schedules, [:active, :next_run_at]
-  end
-end
diff --git a/db/migrate/20170410133135_add_version_field_to_markdown_cache.rb b/db/migrate/20170410133135_add_version_field_to_markdown_cache.rb
deleted file mode 100644
index c019e0627d3..00000000000
--- a/db/migrate/20170410133135_add_version_field_to_markdown_cache.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class AddVersionFieldToMarkdownCache < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    %i[
-      abuse_reports
-      appearances
-      application_settings
-      broadcast_messages
-      issues
-      labels
-      merge_requests
-      milestones
-      namespaces
-      notes
-      projects
-      releases
-      snippets
-    ].each do |table|
-      add_column table, :cached_markdown_version, :integer, limit: 4
-    end
-  end
-end
diff --git a/db/migrate/20170413035209_add_preferred_language_to_users.rb b/db/migrate/20170413035209_add_preferred_language_to_users.rb
deleted file mode 100644
index 5b5f00ea60f..00000000000
--- a/db/migrate/20170413035209_add_preferred_language_to_users.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddPreferredLanguageToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    add_column :users, :preferred_language, :string
-  end
-
-  def down
-    remove_column :users, :preferred_language
-  end
-end
diff --git a/db/migrate/20170418103908_delete_orphan_notification_settings.rb b/db/migrate/20170418103908_delete_orphan_notification_settings.rb
deleted file mode 100644
index c99729b9127..00000000000
--- a/db/migrate/20170418103908_delete_orphan_notification_settings.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-class DeleteOrphanNotificationSettings < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    execute("DELETE FROM notification_settings WHERE EXISTS (SELECT true FROM (#{orphan_notification_settings}) AS ns WHERE ns.id = notification_settings.id)")
-  end
-
-  def down
-    # This is a no-op method to make the migration reversible.
-    # If someone is trying to rollback for other reasons, we should not throw an Exception.
-    # raise ActiveRecord::IrreversibleMigration
-  end
-
-  def orphan_notification_settings
-    <<-SQL
-      SELECT notification_settings.id
-      FROM   notification_settings
-             LEFT OUTER JOIN namespaces
-                          ON namespaces.id = notification_settings.source_id
-      WHERE  notification_settings.source_type = 'Namespace'
-             AND namespaces.id IS NULL
-    SQL
-  end
-end
diff --git a/db/migrate/20170419001229_add_index_to_system_note_metadata.rb b/db/migrate/20170419001229_add_index_to_system_note_metadata.rb
deleted file mode 100644
index 59cd55395fc..00000000000
--- a/db/migrate/20170419001229_add_index_to_system_note_metadata.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class AddIndexToSystemNoteMetadata < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # MySQL automatically creates an index on a foreign-key constraint; PostgreSQL does not
-    add_concurrent_index :system_note_metadata, :note_id, unique: true if Gitlab::Database.postgresql?
-  end
-
-  def down
-    remove_concurrent_index :system_note_metadata, :note_id, unique: true if Gitlab::Database.postgresql?
-  end
-end
diff --git a/db/migrate/20170421102337_remove_nil_type_services.rb b/db/migrate/20170421102337_remove_nil_type_services.rb
deleted file mode 100644
index 561eddf69e0..00000000000
--- a/db/migrate/20170421102337_remove_nil_type_services.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class RemoveNilTypeServices < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    execute <<-SQL
-      DELETE FROM services WHERE type IS NULL OR type = '';
-    SQL
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170423064036_add_index_on_ci_builds_updated_at.rb b/db/migrate/20170423064036_add_index_on_ci_builds_updated_at.rb
deleted file mode 100644
index 76252378c2e..00000000000
--- a/db/migrate/20170423064036_add_index_on_ci_builds_updated_at.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexOnCiBuildsUpdatedAt < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_builds, :updated_at
-  end
-
-  def down
-    remove_concurrent_index :ci_builds, :updated_at if index_exists?(:ci_builds, :updated_at)
-  end
-end
diff --git a/db/migrate/20170424095707_add_index_on_ci_builds_user_id.rb b/db/migrate/20170424095707_add_index_on_ci_builds_user_id.rb
deleted file mode 100644
index ab2501da941..00000000000
--- a/db/migrate/20170424095707_add_index_on_ci_builds_user_id.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexOnCiBuildsUserId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_builds, :user_id
-  end
-
-  def down
-    remove_concurrent_index :ci_builds, :user_id if index_exists?(:ci_builds, :user_id)
-  end
-end
diff --git a/db/migrate/20170424142900_add_index_to_web_hooks_type.rb b/db/migrate/20170424142900_add_index_to_web_hooks_type.rb
deleted file mode 100644
index 1c56c1ed65a..00000000000
--- a/db/migrate/20170424142900_add_index_to_web_hooks_type.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddIndexToWebHooksType < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :web_hooks, :type
-  end
-
-  def down
-    remove_concurrent_index :web_hooks, :type
-  end
-end
diff --git a/db/migrate/20170425112128_create_pipeline_schedules_table.rb b/db/migrate/20170425112128_create_pipeline_schedules_table.rb
deleted file mode 100644
index e66e81b34be..00000000000
--- a/db/migrate/20170425112128_create_pipeline_schedules_table.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreatePipelineSchedulesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    create_table :ci_pipeline_schedules do |t|
-      t.string :description
-      t.string :ref
-      t.string :cron
-      t.string :cron_timezone
-      t.datetime :next_run_at
-      t.integer :project_id
-      t.integer :owner_id
-      t.boolean :active, default: true
-      t.datetime :deleted_at
-
-      t.timestamps null: true
-    end
-
-    add_index(:ci_pipeline_schedules, :project_id)
-    add_index(:ci_pipeline_schedules, [:next_run_at, :active])
-  end
-
-  def down
-    drop_table :ci_pipeline_schedules
-  end
-end
diff --git a/db/migrate/20170425112628_remove_foreigh_key_ci_trigger_schedules.rb b/db/migrate/20170425112628_remove_foreigh_key_ci_trigger_schedules.rb
deleted file mode 100644
index d89c4c61cbe..00000000000
--- a/db/migrate/20170425112628_remove_foreigh_key_ci_trigger_schedules.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class RemoveForeighKeyCiTriggerSchedules < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    if fk_on_trigger_schedules?
-      remove_foreign_key :ci_trigger_schedules, column: :trigger_id
-    end
-  end
-
-  def down
-    # no op, the foreign key should not have been here
-  end
-
-  private
-
-  # Not made more generic and lifted to the helpers as Rails 5 will provide
-  # such an API
-  def fk_on_trigger_schedules?
-    connection.foreign_keys(:ci_trigger_schedules).include?("ci_triggers")
-  end
-end
diff --git a/db/migrate/20170425114731_add_pipeline_schedule_id_to_pipelines.rb b/db/migrate/20170425114731_add_pipeline_schedule_id_to_pipelines.rb
deleted file mode 100644
index da16d89febc..00000000000
--- a/db/migrate/20170425114731_add_pipeline_schedule_id_to_pipelines.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddPipelineScheduleIdToPipelines < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_pipelines, :pipeline_schedule_id, :integer
-  end
-end
diff --git a/db/migrate/20170426175636_fill_missing_uuid_on_application_settings.rb b/db/migrate/20170426175636_fill_missing_uuid_on_application_settings.rb
deleted file mode 100644
index eeeb216f32c..00000000000
--- a/db/migrate/20170426175636_fill_missing_uuid_on_application_settings.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class FillMissingUuidOnApplicationSettings < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    execute("UPDATE application_settings SET uuid = #{quote(SecureRandom.uuid)} WHERE uuid is NULL")
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170426181740_add_index_on_ci_runners_contacted_at.rb b/db/migrate/20170426181740_add_index_on_ci_runners_contacted_at.rb
deleted file mode 100644
index e14b2eb4c8a..00000000000
--- a/db/migrate/20170426181740_add_index_on_ci_runners_contacted_at.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexOnCiRunnersContactedAt < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_runners, :contacted_at
-  end
-
-  def down
-    remove_concurrent_index :ci_runners, :contacted_at if index_exists?(:ci_runners, :contacted_at)
-  end
-end
diff --git a/db/migrate/20170427103502_create_web_hook_logs.rb b/db/migrate/20170427103502_create_web_hook_logs.rb
deleted file mode 100644
index a7a061e7bae..00000000000
--- a/db/migrate/20170427103502_create_web_hook_logs.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable all
-class CreateWebHookLogs < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :web_hook_logs do |t|
-      t.references :web_hook, null: false, index: true, foreign_key: { on_delete: :cascade }
-
-      t.string :trigger
-      t.string :url
-      t.text :request_headers
-      t.text :request_data
-      t.text :response_headers
-      t.text :response_body
-      t.string :response_status
-      t.float :execution_duration
-      t.string :internal_error_message
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20170427215854_create_redirect_routes.rb b/db/migrate/20170427215854_create_redirect_routes.rb
deleted file mode 100644
index 069c9b39d37..00000000000
--- a/db/migrate/20170427215854_create_redirect_routes.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateRedirectRoutes < ActiveRecord::Migration[4.2]
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    create_table :redirect_routes do |t|
-      t.integer :source_id, null: false
-      t.string :source_type, null: false
-      t.string :path, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20170428064307_add_column_delete_error_to_projects.rb b/db/migrate/20170428064307_add_column_delete_error_to_projects.rb
deleted file mode 100644
index bef0373309c..00000000000
--- a/db/migrate/20170428064307_add_column_delete_error_to_projects.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddColumnDeleteErrorToProjects < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :projects, :delete_error, :text
-  end
-end
diff --git a/db/migrate/20170502065653_make_auto_cancel_pending_pipelines_on_by_default.rb b/db/migrate/20170502065653_make_auto_cancel_pending_pipelines_on_by_default.rb
deleted file mode 100644
index e51a790de4d..00000000000
--- a/db/migrate/20170502065653_make_auto_cancel_pending_pipelines_on_by_default.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class MakeAutoCancelPendingPipelinesOnByDefault < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    change_column_default(:projects, :auto_cancel_pending_pipelines, 1)
-  end
-
-  def down
-    change_column_default(:projects, :auto_cancel_pending_pipelines, 0)
-  end
-end
diff --git a/db/migrate/20170502091007_markdown_cache_limits_to_mysql.rb b/db/migrate/20170502091007_markdown_cache_limits_to_mysql.rb
deleted file mode 100644
index 1c5d4997d40..00000000000
--- a/db/migrate/20170502091007_markdown_cache_limits_to_mysql.rb
+++ /dev/null
@@ -1 +0,0 @@
-require_relative 'markdown_cache_limits_to_mysql'
diff --git a/db/migrate/20170502135553_create_index_ci_pipelines_auto_canceled_by_id.rb b/db/migrate/20170502135553_create_index_ci_pipelines_auto_canceled_by_id.rb
deleted file mode 100644
index 7acae645c7b..00000000000
--- a/db/migrate/20170502135553_create_index_ci_pipelines_auto_canceled_by_id.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class CreateIndexCiPipelinesAutoCanceledById < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # MySQL would already have the index
-    unless index_exists?(:ci_pipelines, :auto_canceled_by_id)
-      add_concurrent_index(:ci_pipelines, :auto_canceled_by_id)
-    end
-  end
-
-  def down
-    # We cannot remove index for MySQL because it's needed for foreign key
-    if Gitlab::Database.postgresql?
-      remove_concurrent_index(:ci_pipelines, :auto_canceled_by_id)
-    end
-  end
-end
diff --git a/db/migrate/20170502140503_create_index_ci_builds_auto_canceled_by_id.rb b/db/migrate/20170502140503_create_index_ci_builds_auto_canceled_by_id.rb
deleted file mode 100644
index f5148f6fdb8..00000000000
--- a/db/migrate/20170502140503_create_index_ci_builds_auto_canceled_by_id.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class CreateIndexCiBuildsAutoCanceledById < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # MySQL would already have the index
-    unless index_exists?(:ci_builds, :auto_canceled_by_id)
-      add_concurrent_index(:ci_builds, :auto_canceled_by_id)
-    end
-  end
-
-  def down
-    # We cannot remove index for MySQL because it's needed for foreign key
-    if Gitlab::Database.postgresql?
-      remove_concurrent_index(:ci_builds, :auto_canceled_by_id)
-    end
-  end
-end
diff --git a/db/migrate/20170503004125_add_last_repository_updated_at_to_projects.rb b/db/migrate/20170503004125_add_last_repository_updated_at_to_projects.rb
deleted file mode 100644
index 303250ff3b0..00000000000
--- a/db/migrate/20170503004125_add_last_repository_updated_at_to_projects.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# rubocop:disable Migration/Datetime
-class AddLastRepositoryUpdatedAtToProjects < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :projects, :last_repository_updated_at, :datetime
-  end
-end
diff --git a/db/migrate/20170503004425_add_index_to_last_repository_updated_at_on_projects.rb b/db/migrate/20170503004425_add_index_to_last_repository_updated_at_on_projects.rb
deleted file mode 100644
index ae54cfb39f5..00000000000
--- a/db/migrate/20170503004425_add_index_to_last_repository_updated_at_on_projects.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddIndexToLastRepositoryUpdatedAtOnProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:projects, :last_repository_updated_at)
-  end
-
-  def down
-    remove_concurrent_index(:projects, :last_repository_updated_at) if index_exists?(:projects, :last_repository_updated_at)
-  end
-end
diff --git a/db/migrate/20170503004426_add_retried_to_ci_build.rb b/db/migrate/20170503004426_add_retried_to_ci_build.rb
deleted file mode 100644
index ff2e0ba64c5..00000000000
--- a/db/migrate/20170503004426_add_retried_to_ci_build.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRetriedToCiBuild < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column(:ci_builds, :retried, :boolean)
-  end
-end
diff --git a/db/migrate/20170503021915_add_last_edited_at_and_last_edited_by_id_to_issues.rb b/db/migrate/20170503021915_add_last_edited_at_and_last_edited_by_id_to_issues.rb
deleted file mode 100644
index ef527bb8007..00000000000
--- a/db/migrate/20170503021915_add_last_edited_at_and_last_edited_by_id_to_issues.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable Migration/Datetime
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLastEditedAtAndLastEditedByIdToIssues < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :issues, :last_edited_at, :timestamp
-    add_column :issues, :last_edited_by_id, :integer
-  end
-end
diff --git a/db/migrate/20170503022548_add_last_edited_at_and_last_edited_by_id_to_merge_requests.rb b/db/migrate/20170503022548_add_last_edited_at_and_last_edited_by_id_to_merge_requests.rb
deleted file mode 100644
index 19b8a9d66e7..00000000000
--- a/db/migrate/20170503022548_add_last_edited_at_and_last_edited_by_id_to_merge_requests.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# rubocop:disable Migration/Datetime
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLastEditedAtAndLastEditedByIdToMergeRequests < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :merge_requests, :last_edited_at, :timestamp
-    add_column :merge_requests, :last_edited_by_id, :integer
-  end
-end
diff --git a/db/migrate/20170503023315_add_repository_update_events_to_web_hooks.rb b/db/migrate/20170503023315_add_repository_update_events_to_web_hooks.rb
deleted file mode 100644
index 4824c404ec7..00000000000
--- a/db/migrate/20170503023315_add_repository_update_events_to_web_hooks.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddRepositoryUpdateEventsToWebHooks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :web_hooks, :repository_update_events, :boolean, default: false, allow_null: false
-  end
-
-  def down
-    remove_column :web_hooks, :repository_update_events
-  end
-end
diff --git a/db/migrate/20170503114228_add_description_to_snippets.rb b/db/migrate/20170503114228_add_description_to_snippets.rb
deleted file mode 100644
index 78151ed9ff6..00000000000
--- a/db/migrate/20170503114228_add_description_to_snippets.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class AddDescriptionToSnippets < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def change
-    add_column :snippets, :description, :text
-    add_column :snippets, :description_html, :text
-  end
-end
diff --git a/db/migrate/20170503140201_reschedule_project_authorizations.rb b/db/migrate/20170503140201_reschedule_project_authorizations.rb
deleted file mode 100644
index aa940bed2d3..00000000000
--- a/db/migrate/20170503140201_reschedule_project_authorizations.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RescheduleProjectAuthorizations < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class User < ActiveRecord::Base
-    self.table_name = 'users'
-  end
-
-  def up
-    offset = 0
-    batch = 5000
-    start = Time.now
-
-    loop do
-      relation = User.where('id > ?', offset)
-      user_ids = relation.limit(batch).reorder(id: :asc).pluck(:id)
-
-      break if user_ids.empty?
-
-      offset = user_ids.last
-
-      # This will schedule each batch 5 minutes after the previous batch was
-      # scheduled. This smears out the load over time, instead of immediately
-      # scheduling a million jobs.
-      Sidekiq::Client.push_bulk(
-        'queue' => 'authorized_projects',
-        'args' => user_ids.zip,
-        'class' => 'AuthorizedProjectsWorker',
-        'at' => start.to_i
-      )
-
-      start += 5.minutes
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170503140202_turn_nested_groups_into_regular_groups_for_mysql.rb b/db/migrate/20170503140202_turn_nested_groups_into_regular_groups_for_mysql.rb
deleted file mode 100644
index 65b2c6a57be..00000000000
--- a/db/migrate/20170503140202_turn_nested_groups_into_regular_groups_for_mysql.rb
+++ /dev/null
@@ -1,116 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# This migration depends on code external to it. For example, it relies on
-# updating a namespace to also rename directories (uploads, GitLab pages, etc).
-# The alternative is to copy hundreds of lines of code into this migration,
-# adjust them where needed, etc; something which doesn't work well at all.
-class TurnNestedGroupsIntoRegularGroupsForMysql < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def run_migration?
-    Gitlab::Database.mysql?
-  end
-
-  def up
-    return unless run_migration?
-
-    # For all sub-groups we need to give the right people access. We do this as
-    # follows:
-    #
-    # 1. Get all the ancestors for the current namespace
-    # 2. Get all the members of these namespaces, along with their higher access
-    #    level
-    # 3. Give these members access to the current namespace
-    Namespace.unscoped.where('parent_id IS NOT NULL').find_each do |namespace|
-      rows = []
-      existing = namespace.members.pluck(:user_id)
-
-      all_members_for(namespace).each do |member|
-        next if existing.include?(member[:user_id])
-
-        rows << {
-          access_level: member[:access_level],
-          source_id: namespace.id,
-          source_type: 'Namespace',
-          user_id: member[:user_id],
-          notification_level: 3, # global
-          type: 'GroupMember',
-          created_at: Time.current,
-          updated_at: Time.current
-        }
-      end
-
-      bulk_insert_members(rows)
-
-      namespace.update!(parent_id: nil, path: new_path_for(namespace))
-    end
-  end
-
-  def down
-    # There is no way to go back from regular groups to nested groups.
-  end
-
-  # Generates a new (unique) path for a namespace.
-  def new_path_for(namespace)
-    counter = 1
-    base = namespace.full_path.tr('/', '-')
-    new_path = base
-
-    while Namespace.unscoped.where(path: new_path).exists?
-      new_path = base + "-#{counter}"
-      counter += 1
-    end
-
-    new_path
-  end
-
-  # Returns an Array containing all the ancestors of the current namespace.
-  #
-  # This method is not particularly efficient, but it's probably still faster
-  # than using the "routes" table. Most importantly of all, it _only_ depends
-  # on the namespaces table and the "parent_id" column.
-  def ancestors_for(namespace)
-    ancestors = []
-    current = namespace
-
-    while current&.parent_id
-      # We're using find_by(id: ...) here to deal with cases where the
-      # parent_id may point to a missing row.
-      current = Namespace.unscoped.select([:id, :parent_id])
-        .find_by(id: current.parent_id)
-
-      ancestors << current.id if current
-    end
-
-    ancestors
-  end
-
-  # Returns a relation containing all the members that have access to any of
-  # the current namespace's parent namespaces.
-  def all_members_for(namespace)
-    Member
-      .unscoped
-      .select(['user_id', 'MAX(access_level) AS access_level'])
-      .where(source_type: 'Namespace', source_id: ancestors_for(namespace))
-      .group(:user_id)
-  end
-
-  def bulk_insert_members(rows)
-    return if rows.empty?
-
-    keys = rows.first.keys
-
-    tuples = rows.map do |row|
-      row.map { |(_, value)| connection.quote(value) }
-    end
-
-    execute <<-EOF.strip_heredoc
-    INSERT INTO members (#{keys.join(', ')})
-    VALUES #{tuples.map { |tuple| "(#{tuple.join(', ')})" }.join(', ')}
-    EOF
-  end
-end
diff --git a/db/migrate/20170503184421_add_index_to_redirect_routes.rb b/db/migrate/20170503184421_add_index_to_redirect_routes.rb
deleted file mode 100644
index 6320d4bbc99..00000000000
--- a/db/migrate/20170503184421_add_index_to_redirect_routes.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexToRedirectRoutes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:redirect_routes, :path, unique: true)
-    add_concurrent_index(:redirect_routes, [:source_type, :source_id])
-  end
-
-  def down
-    remove_concurrent_index(:redirect_routes, :path) if index_exists?(:redirect_routes, :path)
-    remove_concurrent_index(:redirect_routes, [:source_type, :source_id]) if index_exists?(:redirect_routes, [:source_type, :source_id])
-  end
-end
diff --git a/db/migrate/20170503185032_index_redirect_routes_path_for_like.rb b/db/migrate/20170503185032_index_redirect_routes_path_for_like.rb
deleted file mode 100644
index 5d06fd0511c..00000000000
--- a/db/migrate/20170503185032_index_redirect_routes_path_for_like.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class IndexRedirectRoutesPathForLike < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  INDEX_NAME = 'index_redirect_routes_on_path_text_pattern_ops'
-
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    unless index_exists?(:redirect_routes, :path, name: INDEX_NAME)
-      execute("CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON redirect_routes (path varchar_pattern_ops);")
-    end
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-    return unless index_exists?(:redirect_routes, :path, name: INDEX_NAME)
-
-    remove_concurrent_index_by_name(:redirect_routes, INDEX_NAME)
-  end
-end
diff --git a/db/migrate/20170504102911_add_clientside_sentry_to_application_settings.rb b/db/migrate/20170504102911_add_clientside_sentry_to_application_settings.rb
deleted file mode 100644
index 4659f694020..00000000000
--- a/db/migrate/20170504102911_add_clientside_sentry_to_application_settings.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddClientsideSentryToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings, :clientside_sentry_enabled, :boolean, default: false
-    add_column :application_settings, :clientside_sentry_dsn, :string
-  end
-
-  def down
-    remove_columns :application_settings, :clientside_sentry_enabled, :clientside_sentry_dsn
-  end
-end
diff --git a/db/migrate/20170504182103_add_index_project_group_links_group_id.rb b/db/migrate/20170504182103_add_index_project_group_links_group_id.rb
deleted file mode 100644
index 5b1c14e66dd..00000000000
--- a/db/migrate/20170504182103_add_index_project_group_links_group_id.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexProjectGroupLinksGroupId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :project_group_links, :group_id
-  end
-
-  def down
-    remove_concurrent_index :project_group_links, :group_id
-  end
-end
diff --git a/db/migrate/20170506085040_add_index_to_pipeline_pipeline_schedule_id.rb b/db/migrate/20170506085040_add_index_to_pipeline_pipeline_schedule_id.rb
deleted file mode 100644
index 9d8cc8a83a2..00000000000
--- a/db/migrate/20170506085040_add_index_to_pipeline_pipeline_schedule_id.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class AddIndexToPipelinePipelineScheduleId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    unless index_exists?(:ci_pipelines, :pipeline_schedule_id)
-      add_concurrent_index(:ci_pipelines, :pipeline_schedule_id)
-    end
-  end
-
-  def down
-    if index_exists?(:ci_pipelines, :pipeline_schedule_id)
-      remove_concurrent_index(:ci_pipelines, :pipeline_schedule_id)
-    end
-  end
-end
diff --git a/db/migrate/20170506091344_add_foreign_key_to_pipeline_schedules.rb b/db/migrate/20170506091344_add_foreign_key_to_pipeline_schedules.rb
deleted file mode 100644
index 244e41e2f07..00000000000
--- a/db/migrate/20170506091344_add_foreign_key_to_pipeline_schedules.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddForeignKeyToPipelineSchedules < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key :ci_pipeline_schedules, :projects, column: :project_id
-  end
-
-  def down
-    remove_foreign_key :ci_pipeline_schedules, :projects
-  end
-end
diff --git a/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb b/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb
deleted file mode 100644
index 50364cac259..00000000000
--- a/db/migrate/20170506185517_add_foreign_key_pipeline_schedules_and_pipelines.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class AddForeignKeyPipelineSchedulesAndPipelines < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    on_delete =
-      if Gitlab::Database.mysql?
-        :nullify
-      else
-        'SET NULL'
-      end
-
-    add_concurrent_foreign_key :ci_pipelines, :ci_pipeline_schedules,
-      column: :pipeline_schedule_id, on_delete: on_delete
-  end
-
-  def down
-    remove_foreign_key :ci_pipelines, column: :pipeline_schedule_id
-  end
-end
diff --git a/db/migrate/20170507205316_add_head_pipeline_id_to_merge_requests.rb b/db/migrate/20170507205316_add_head_pipeline_id_to_merge_requests.rb
deleted file mode 100644
index adfe6559084..00000000000
--- a/db/migrate/20170507205316_add_head_pipeline_id_to_merge_requests.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddHeadPipelineIdToMergeRequests < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :merge_requests, :head_pipeline_id, :integer
-  end
-end
diff --git a/db/migrate/20170508153950_add_not_null_contraints_to_ci_variables.rb b/db/migrate/20170508153950_add_not_null_contraints_to_ci_variables.rb
deleted file mode 100644
index 2a0c7132bfd..00000000000
--- a/db/migrate/20170508153950_add_not_null_contraints_to_ci_variables.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class AddNotNullContraintsToCiVariables < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    change_column(:ci_variables, :key, :string, null: false)
-    change_column(:ci_variables, :project_id, :integer, null: false)
-  end
-
-  def down
-    # no op
-  end
-end
diff --git a/db/migrate/20170508190732_add_foreign_key_to_ci_variables.rb b/db/migrate/20170508190732_add_foreign_key_to_ci_variables.rb
deleted file mode 100644
index 305366b2171..00000000000
--- a/db/migrate/20170508190732_add_foreign_key_to_ci_variables.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-class AddForeignKeyToCiVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    execute <<~SQL
-      DELETE FROM ci_variables
-      WHERE NOT EXISTS (
-        SELECT true
-        FROM projects
-        WHERE projects.id = ci_variables.project_id
-      )
-    SQL
-
-    add_concurrent_foreign_key(:ci_variables, :projects, column: :project_id)
-  end
-
-  def down
-    remove_foreign_key(:ci_variables, column: :project_id)
-  end
-end
diff --git a/db/migrate/20170511082759_rename_web_hooks_build_events_to_job_events.rb b/db/migrate/20170511082759_rename_web_hooks_build_events_to_job_events.rb
deleted file mode 100644
index 3a44057d948..00000000000
--- a/db/migrate/20170511082759_rename_web_hooks_build_events_to_job_events.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameWebHooksBuildEventsToJobEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    rename_column_concurrently :web_hooks, :build_events, :job_events
-  end
-
-  def down
-    cleanup_concurrent_column_rename :web_hooks, :job_events, :build_events
-  end
-end
diff --git a/db/migrate/20170511083824_rename_services_build_events_to_job_events.rb b/db/migrate/20170511083824_rename_services_build_events_to_job_events.rb
deleted file mode 100644
index 713adde76ef..00000000000
--- a/db/migrate/20170511083824_rename_services_build_events_to_job_events.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameServicesBuildEventsToJobEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    rename_column_concurrently :services, :build_events, :job_events
-  end
-
-  def down
-    cleanup_concurrent_column_rename :services, :job_events, :build_events
-  end
-end
diff --git a/db/migrate/20170516153305_migrate_assignee_to_separate_table.rb b/db/migrate/20170516153305_migrate_assignee_to_separate_table.rb
deleted file mode 100644
index 0ed45775421..00000000000
--- a/db/migrate/20170516153305_migrate_assignee_to_separate_table.rb
+++ /dev/null
@@ -1,83 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateAssigneeToSeparateTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def up
-    drop_table(:issue_assignees) if table_exists?(:issue_assignees)
-
-    if Gitlab::Database.mysql?
-      execute <<-EOF
-        CREATE TABLE issue_assignees AS
-          SELECT assignee_id AS user_id, id AS issue_id FROM issues WHERE assignee_id IS NOT NULL
-      EOF
-    else
-      ActiveRecord::Base.transaction do
-        execute('LOCK TABLE issues IN EXCLUSIVE MODE')
-
-        execute <<-EOF
-          CREATE TABLE issue_assignees AS
-            SELECT assignee_id AS user_id, id AS issue_id FROM issues WHERE assignee_id IS NOT NULL
-        EOF
-
-        execute <<-EOF
-            CREATE OR REPLACE FUNCTION replicate_assignee_id()
-            RETURNS trigger AS
-            $BODY$
-            BEGIN
-              if OLD IS NOT NULL AND OLD.assignee_id IS NOT NULL THEN
-                  DELETE FROM issue_assignees WHERE issue_id = OLD.id;
-              END IF;
-
-              if NEW.assignee_id IS NOT NULL THEN
-                  INSERT INTO issue_assignees (user_id, issue_id) VALUES (NEW.assignee_id, NEW.id);
-              END IF;
-
-              RETURN NEW;
-            END;
-            $BODY$
-            LANGUAGE 'plpgsql'
-            VOLATILE;
-
-            CREATE TRIGGER replicate_assignee_id
-            BEFORE INSERT OR UPDATE OF assignee_id
-            ON issues
-            FOR EACH ROW EXECUTE PROCEDURE replicate_assignee_id();
-        EOF
-      end
-    end
-  end
-
-  def down
-    drop_table(:issue_assignees) if table_exists?(:issue_assignees)
-
-    if Gitlab::Database.postgresql?
-      execute <<-EOF
-        DROP TRIGGER IF EXISTS replicate_assignee_id ON issues;
-        DROP FUNCTION IF EXISTS replicate_assignee_id();
-      EOF
-    end
-  end
-end
diff --git a/db/migrate/20170516183131_add_indices_to_issue_assignees.rb b/db/migrate/20170516183131_add_indices_to_issue_assignees.rb
deleted file mode 100644
index 6877fe9ff98..00000000000
--- a/db/migrate/20170516183131_add_indices_to_issue_assignees.rb
+++ /dev/null
@@ -1,41 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndicesToIssueAssignees < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :issue_assignees, [:issue_id, :user_id], unique: true, name: 'index_issue_assignees_on_issue_id_and_user_id'
-    add_concurrent_index :issue_assignees, :user_id, name: 'index_issue_assignees_on_user_id'
-    add_concurrent_foreign_key :issue_assignees, :users, column: :user_id, on_delete: :cascade
-    add_concurrent_foreign_key :issue_assignees, :issues, column: :issue_id, on_delete: :cascade
-  end
-
-  def down
-    remove_foreign_key :issue_assignees, column: :user_id
-    remove_foreign_key :issue_assignees, column: :issue_id
-    remove_concurrent_index :issue_assignees, [:issue_id, :user_id] if index_exists?(:issue_assignees, [:issue_id, :user_id])
-    remove_concurrent_index :issue_assignees, :user_id if index_exists?(:issue_assignees, :user_id)
-  end
-end
diff --git a/db/migrate/20170519102115_add_prometheus_settings_to_metrics_settings.rb b/db/migrate/20170519102115_add_prometheus_settings_to_metrics_settings.rb
deleted file mode 100644
index 9c8f58104bd..00000000000
--- a/db/migrate/20170519102115_add_prometheus_settings_to_metrics_settings.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class AddPrometheusSettingsToMetricsSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:application_settings, :prometheus_metrics_enabled, :boolean,
-                            default: false, allow_null: false)
-  end
-
-  def down
-    remove_column(:application_settings, :prometheus_metrics_enabled)
-  end
-end
diff --git a/db/migrate/20170521184006_add_change_position_to_notes.rb b/db/migrate/20170521184006_add_change_position_to_notes.rb
deleted file mode 100644
index f0ca3a2a9ea..00000000000
--- a/db/migrate/20170521184006_add_change_position_to_notes.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddChangePositionToNotes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :notes, :change_position, :text
-  end
-end
diff --git a/db/migrate/20170523091700_add_rss_token_to_users.rb b/db/migrate/20170523091700_add_rss_token_to_users.rb
deleted file mode 100644
index e1bcd9b3fee..00000000000
--- a/db/migrate/20170523091700_add_rss_token_to_users.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class AddRssTokenToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :users, :rss_token, :string
-
-    add_concurrent_index :users, :rss_token
-  end
-
-  def down
-    remove_concurrent_index :users, :rss_token if index_exists? :users, :rss_token
-
-    remove_column :users, :rss_token
-  end
-end
diff --git a/db/migrate/20170523121229_create_conversational_development_index_metrics.rb b/db/migrate/20170523121229_create_conversational_development_index_metrics.rb
deleted file mode 100644
index 5f8c0d07e3c..00000000000
--- a/db/migrate/20170523121229_create_conversational_development_index_metrics.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreateConversationalDevelopmentIndexMetrics < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :conversational_development_index_metrics do |t|
-      t.float :leader_issues, null: false
-      t.float :instance_issues, null: false
-
-      t.float :leader_notes, null: false
-      t.float :instance_notes, null: false
-
-      t.float :leader_milestones, null: false
-      t.float :instance_milestones, null: false
-
-      t.float :leader_boards, null: false
-      t.float :instance_boards, null: false
-
-      t.float :leader_merge_requests, null: false
-      t.float :instance_merge_requests, null: false
-
-      t.float :leader_ci_pipelines, null: false
-      t.float :instance_ci_pipelines, null: false
-
-      t.float :leader_environments, null: false
-      t.float :instance_environments, null: false
-
-      t.float :leader_deployments, null: false
-      t.float :instance_deployments, null: false
-
-      t.float :leader_projects_prometheus_active, null: false
-      t.float :instance_projects_prometheus_active, null: false
-
-      t.float :leader_service_desk_issues, null: false
-      t.float :instance_service_desk_issues, null: false
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/db/migrate/20170524125940_add_source_to_ci_pipeline.rb b/db/migrate/20170524125940_add_source_to_ci_pipeline.rb
deleted file mode 100644
index 81358e7ce3d..00000000000
--- a/db/migrate/20170524125940_add_source_to_ci_pipeline.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddSourceToCiPipeline < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_pipelines, :source, :integer
-  end
-end
diff --git a/db/migrate/20170524161101_add_protected_to_ci_variables.rb b/db/migrate/20170524161101_add_protected_to_ci_variables.rb
deleted file mode 100644
index 6125ea5d5a8..00000000000
--- a/db/migrate/20170524161101_add_protected_to_ci_variables.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddProtectedToCiVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:ci_variables, :protected, :boolean, default: false)
-  end
-
-  def down
-    remove_column(:ci_variables, :protected)
-  end
-end
diff --git a/db/migrate/20170525130346_create_group_variables_table.rb b/db/migrate/20170525130346_create_group_variables_table.rb
deleted file mode 100644
index 6eae7eff7bd..00000000000
--- a/db/migrate/20170525130346_create_group_variables_table.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class CreateGroupVariablesTable < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    create_table :ci_group_variables do |t|
-      t.string :key, null: false
-      t.text :value
-      t.text :encrypted_value
-      t.string :encrypted_value_salt
-      t.string :encrypted_value_iv
-      t.integer :group_id, null: false
-      t.boolean :protected, default: false, null: false
-
-      t.timestamps_with_timezone null: false
-    end
-
-    add_index :ci_group_variables, [:group_id, :key], unique: true
-  end
-
-  def down
-    drop_table :ci_group_variables
-  end
-end
diff --git a/db/migrate/20170525130758_add_foreign_key_to_group_variables.rb b/db/migrate/20170525130758_add_foreign_key_to_group_variables.rb
deleted file mode 100644
index f1f51a1dda3..00000000000
--- a/db/migrate/20170525130758_add_foreign_key_to_group_variables.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddForeignKeyToGroupVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key :ci_group_variables, :namespaces, column: :group_id
-  end
-
-  def down
-    remove_foreign_key :ci_group_variables, column: :group_id
-  end
-end
diff --git a/db/migrate/20170525132202_create_pipeline_stages.rb b/db/migrate/20170525132202_create_pipeline_stages.rb
deleted file mode 100644
index 0a6400fde90..00000000000
--- a/db/migrate/20170525132202_create_pipeline_stages.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# rubocop:disable Migration/Timestamps
-class CreatePipelineStages < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :ci_stages do |t|
-      t.integer :project_id
-      t.integer :pipeline_id
-      t.timestamps null: true
-      t.string :name
-    end
-
-    add_concurrent_foreign_key :ci_stages, :projects, column: :project_id, on_delete: :cascade
-    add_concurrent_foreign_key :ci_stages, :ci_pipelines, column: :pipeline_id, on_delete: :cascade
-    add_concurrent_index :ci_stages, :project_id
-    add_concurrent_index :ci_stages, :pipeline_id
-  end
-
-  def down
-    drop_table :ci_stages
-  end
-end
diff --git a/db/migrate/20170525174156_create_feature_tables.rb b/db/migrate/20170525174156_create_feature_tables.rb
deleted file mode 100644
index e1eaaff8d35..00000000000
--- a/db/migrate/20170525174156_create_feature_tables.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-class CreateFeatureTables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def self.up
-    create_table :features do |t|
-      t.string :key, null: false
-      t.timestamps null: false
-    end
-    add_index :features, :key, unique: true
-
-    create_table :feature_gates do |t|
-      t.string :feature_key, null: false
-      t.string :key, null: false
-      t.string :value
-      t.timestamps null: false
-    end
-    add_index :feature_gates, [:feature_key, :key, :value], unique: true
-  end
-
-  def self.down
-    drop_table :feature_gates
-    drop_table :features
-  end
-end
diff --git a/db/migrate/20170526185602_add_stage_id_to_ci_builds.rb b/db/migrate/20170526185602_add_stage_id_to_ci_builds.rb
deleted file mode 100644
index 6958557d118..00000000000
--- a/db/migrate/20170526185602_add_stage_id_to_ci_builds.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddStageIdToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    add_column :ci_builds, :stage_id, :integer
-  end
-
-  def down
-    remove_column :ci_builds, :stage_id, :integer
-  end
-end
diff --git a/db/migrate/20170530130129_project_foreign_keys_with_cascading_deletes.rb b/db/migrate/20170530130129_project_foreign_keys_with_cascading_deletes.rb
deleted file mode 100644
index b4658bc4017..00000000000
--- a/db/migrate/20170530130129_project_foreign_keys_with_cascading_deletes.rb
+++ /dev/null
@@ -1,198 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ProjectForeignKeysWithCascadingDeletes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  CONCURRENCY = 4
-
-  disable_ddl_transaction!
-
-  # The tables/columns for which to remove orphans and add foreign keys. Order
-  # matters as some tables/columns should be processed before others.
-  TABLES = [
-    [:boards, :projects, :project_id],
-    [:lists, :labels, :label_id],
-    [:lists, :boards, :board_id],
-    [:services, :projects, :project_id],
-    [:forked_project_links, :projects, :forked_to_project_id],
-    [:merge_requests, :projects, :target_project_id],
-    [:labels, :projects, :project_id],
-    [:issues, :projects, :project_id],
-    [:events, :projects, :project_id],
-    [:milestones, :projects, :project_id],
-    [:notes, :projects, :project_id],
-    [:snippets, :projects, :project_id],
-    [:web_hooks, :projects, :project_id],
-    [:protected_branch_merge_access_levels, :protected_branches, :protected_branch_id],
-    [:protected_branch_push_access_levels, :protected_branches, :protected_branch_id],
-    [:protected_branches, :projects, :project_id],
-    [:protected_tags, :projects, :project_id],
-    [:deploy_keys_projects, :projects, :project_id],
-    [:users_star_projects, :projects, :project_id],
-    [:releases, :projects, :project_id],
-    [:project_group_links, :projects, :project_id],
-    [:pages_domains, :projects, :project_id],
-    [:todos, :projects, :project_id],
-    [:project_import_data, :projects, :project_id],
-    [:project_features, :projects, :project_id],
-    [:ci_builds, :projects, :project_id],
-    [:ci_pipelines, :projects, :project_id],
-    [:ci_runner_projects, :projects, :project_id],
-    [:ci_triggers, :projects, :project_id],
-    [:environments, :projects, :project_id],
-    [:deployments, :projects, :project_id]
-  ]
-
-  def up
-    # These existing foreign keys don't have an "ON DELETE CASCADE" clause.
-    remove_foreign_key_without_error(:boards, :project_id)
-    remove_foreign_key_without_error(:lists, :label_id)
-    remove_foreign_key_without_error(:lists, :board_id)
-    remove_foreign_key_without_error(:protected_branch_merge_access_levels,
-                                     :protected_branch_id)
-
-    remove_foreign_key_without_error(:protected_branch_push_access_levels,
-                                     :protected_branch_id)
-
-    remove_orphaned_rows
-    add_foreign_keys
-
-    # These columns are not indexed yet, meaning a cascading delete would take
-    # forever.
-    add_index_if_not_exists(:project_group_links, :project_id)
-    add_index_if_not_exists(:pages_domains, :project_id)
-  end
-
-  def down
-    TABLES.each do |(source, _, column)|
-      remove_foreign_key_without_error(source, column)
-    end
-
-    add_foreign_key_if_not_exists(:boards, :projects, column: :project_id)
-    add_foreign_key_if_not_exists(:lists, :labels, column: :label_id)
-    add_foreign_key_if_not_exists(:lists, :boards, column: :board_id)
-
-    add_foreign_key_if_not_exists(:protected_branch_merge_access_levels,
-                               :protected_branches,
-                               column: :protected_branch_id)
-
-    add_foreign_key_if_not_exists(:protected_branch_push_access_levels,
-                               :protected_branches,
-                               column: :protected_branch_id)
-
-    remove_index_without_error(:project_group_links, :project_id)
-    remove_index_without_error(:pages_domains, :project_id)
-  end
-
-  def add_foreign_keys
-    TABLES.each do |(source, target, column)|
-      add_foreign_key_if_not_exists(source, target, column: column)
-    end
-  end
-
-  # Removes orphans from various tables concurrently.
-  def remove_orphaned_rows
-    Gitlab::Database.with_connection_pool(CONCURRENCY) do |pool|
-      queues = queues_for_rows(TABLES)
-
-      threads = queues.map do |queue|
-        Thread.new do
-          pool.with_connection do |connection|
-            Thread.current[:foreign_key_connection] = connection
-
-            # Disables statement timeouts for the current connection. This is
-            # necessary as removing of orphaned data might otherwise exceed the
-            # statement timeout.
-            disable_statement_timeout do
-              remove_orphans(*queue.pop) until queue.empty?
-
-              steal_from_queues(queues - [queue])
-            end
-          end
-        end
-      end
-
-      threads.each(&:join)
-    end
-  end
-
-  def steal_from_queues(queues)
-    loop do
-      stolen = false
-
-      queues.each do |queue|
-        # Stealing is racy so it's possible a pop might be called on an
-        # already-empty queue.
-
-        remove_orphans(*queue.pop(true))
-        stolen = true
-      rescue ThreadError
-      end
-
-      break unless stolen
-    end
-  end
-
-  def remove_orphans(source, target, column)
-    quoted_source = quote_table_name(source)
-    quoted_target = quote_table_name(target)
-    quoted_column = quote_column_name(column)
-
-    execute <<-EOF.strip_heredoc
-    DELETE FROM #{quoted_source}
-    WHERE NOT EXISTS (
-      SELECT true
-      FROM #{quoted_target}
-      WHERE #{quoted_target}.id = #{quoted_source}.#{quoted_column}
-    )
-    AND #{quoted_source}.#{quoted_column} IS NOT NULL
-    EOF
-  end
-
-  def add_foreign_key_if_not_exists(source, target, column:)
-    return if foreign_key_exists?(source, target, column: column)
-
-    add_concurrent_foreign_key(source, target, column: column)
-  end
-
-  def add_index_if_not_exists(table, column)
-    return if index_exists?(table, column)
-
-    add_concurrent_index(table, column)
-  end
-
-  def remove_foreign_key_without_error(table, column)
-    remove_foreign_key(table, column: column)
-  rescue ArgumentError
-  end
-
-  def remove_index_without_error(table, column)
-    remove_concurrent_index(table, column)
-  rescue ArgumentError
-  end
-
-  def connection
-    # Rails memoizes connection objects, but this causes them to be shared
-    # amongst threads; we don't want that.
-    Thread.current[:foreign_key_connection] || ActiveRecord::Base.connection
-  end
-
-  def queues_for_rows(rows)
-    queues = Array.new(CONCURRENCY) { Queue.new }
-    slice_size = rows.length / CONCURRENCY
-
-    # Divide all the tuples as evenly as possible amongst the queues.
-    rows.each_slice(slice_size).each_with_index do |slice, index|
-      bucket = index % CONCURRENCY
-
-      slice.each do |row|
-        queues[bucket] << row
-      end
-    end
-
-    queues
-  end
-end
diff --git a/db/migrate/20170531180233_add_authorized_keys_enabled_to_application_settings.rb b/db/migrate/20170531180233_add_authorized_keys_enabled_to_application_settings.rb
deleted file mode 100644
index f440609ff8a..00000000000
--- a/db/migrate/20170531180233_add_authorized_keys_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddAuthorizedKeysEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings, :authorized_keys_enabled, :boolean, default: true, allow_null: false
-  end
-
-  def down
-    remove_column :application_settings, :authorized_keys_enabled
-  end
-end
diff --git a/db/migrate/20170531202042_rename_users_ldap_email_to_external_email.rb b/db/migrate/20170531202042_rename_users_ldap_email_to_external_email.rb
deleted file mode 100644
index 7b1a7644555..00000000000
--- a/db/migrate/20170531202042_rename_users_ldap_email_to_external_email.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class RenameUsersLdapEmailToExternalEmail < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # rubocop:disable Migration/UpdateLargeTable
-    rename_column_concurrently :users, :ldap_email, :external_email
-  end
-
-  def down
-    cleanup_concurrent_column_rename :users, :external_email, :ldap_email
-  end
-end
diff --git a/db/migrate/20170601163708_add_artifacts_store_to_ci_build.rb b/db/migrate/20170601163708_add_artifacts_store_to_ci_build.rb
deleted file mode 100644
index 4c9ac821b20..00000000000
--- a/db/migrate/20170601163708_add_artifacts_store_to_ci_build.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class AddArtifactsStoreToCiBuild < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column(:ci_builds, :artifacts_file_store, :integer)
-    add_column(:ci_builds, :artifacts_metadata_store, :integer)
-  end
-end
diff --git a/db/migrate/20170602154736_add_help_page_hide_commercial_content_to_application_settings.rb b/db/migrate/20170602154736_add_help_page_hide_commercial_content_to_application_settings.rb
deleted file mode 100644
index ff9e188d7a8..00000000000
--- a/db/migrate/20170602154736_add_help_page_hide_commercial_content_to_application_settings.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# rubocop:disable Migration/SaferBooleanColumn
-class AddHelpPageHideCommercialContentToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :help_page_hide_commercial_content, :boolean, default: false
-  end
-end
diff --git a/db/migrate/20170602154813_add_help_page_support_url_to_application_settings.rb b/db/migrate/20170602154813_add_help_page_support_url_to_application_settings.rb
deleted file mode 100644
index 388e130ab88..00000000000
--- a/db/migrate/20170602154813_add_help_page_support_url_to_application_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddHelpPageSupportUrlToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :help_page_support_url, :string
-  end
-end
diff --git a/db/migrate/20170603200744_add_email_provider_to_users.rb b/db/migrate/20170603200744_add_email_provider_to_users.rb
deleted file mode 100644
index ad6e813d31b..00000000000
--- a/db/migrate/20170603200744_add_email_provider_to_users.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddEmailProviderToUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :users, :email_provider, :string
-  end
-end
diff --git a/db/migrate/20170606154216_add_notification_setting_columns.rb b/db/migrate/20170606154216_add_notification_setting_columns.rb
deleted file mode 100644
index 3b9493e6b49..00000000000
--- a/db/migrate/20170606154216_add_notification_setting_columns.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-class AddNotificationSettingColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  COLUMNS = [
-    :new_note,
-    :new_issue,
-    :reopen_issue,
-    :close_issue,
-    :reassign_issue,
-    :new_merge_request,
-    :reopen_merge_request,
-    :close_merge_request,
-    :reassign_merge_request,
-    :merge_merge_request,
-    :failed_pipeline,
-    :success_pipeline
-  ]
-
-  def change
-    COLUMNS.each do |column|
-      add_column(:notification_settings, column, :boolean)
-    end
-  end
-end
diff --git a/db/migrate/20170608152747_prepare_events_table_for_push_events_migration.rb b/db/migrate/20170608152747_prepare_events_table_for_push_events_migration.rb
deleted file mode 100644
index 851af7f7bf6..00000000000
--- a/db/migrate/20170608152747_prepare_events_table_for_push_events_migration.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PrepareEventsTableForPushEventsMigration < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # The order of these columns is deliberate and results in the following
-    # columns and sizes:
-    #
-    # * id (4 bytes)
-    # * project_id (4 bytes)
-    # * author_id (4 bytes)
-    # * target_id (4 bytes)
-    # * created_at (8 bytes)
-    # * updated_at (8 bytes)
-    # * action (2 bytes)
-    # * target_type (variable)
-    #
-    # Unfortunately we can't make the "id" column a bigint/bigserial as Rails 4
-    # does not support this properly.
-    create_table :events_for_migration do |t|
-      t.references :project,
-                   index: true,
-                   foreign_key: { on_delete: :cascade }
-
-      t.integer :author_id, index: true, null: false
-      t.integer :target_id
-
-      t.timestamps_with_timezone null: false
-
-      t.integer :action, null: false, limit: 2, index: true
-      t.string :target_type
-
-      t.index %i[target_type target_id]
-    end
-
-    # t.references doesn't like it when the column name doesn't make the table
-    # name so we have to add the foreign key separately.
-    add_concurrent_foreign_key(:events_for_migration, :users, column: :author_id)
-  end
-
-  def down
-    drop_table :events_for_migration
-  end
-end
diff --git a/db/migrate/20170608152748_create_push_event_payloads_tables.rb b/db/migrate/20170608152748_create_push_event_payloads_tables.rb
deleted file mode 100644
index 292d9e3ca06..00000000000
--- a/db/migrate/20170608152748_create_push_event_payloads_tables.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CreatePushEventPayloadsTables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :push_event_payloads, id: false do |t|
-      t.bigint :commit_count, null: false
-
-      t.integer :event_id, null: false
-      t.integer :action, null: false, limit: 2
-      t.integer :ref_type, null: false, limit: 2
-
-      t.binary :commit_from
-      t.binary :commit_to
-
-      t.text :ref
-      t.string :commit_title, limit: 70
-
-      t.index :event_id, unique: true
-    end
-
-    # We're adding a foreign key to the _shadow_ table, and this is deliberate.
-    # By using the shadow table we don't have to recreate/revalidate this
-    # foreign key after swapping the "events_for_migration" and "events" tables.
-    #
-    # The "events_for_migration" table has a foreign key to "projects.id"
-    # ensuring that project removals also remove events from the shadow table
-    # (and thus also from this table).
-    add_concurrent_foreign_key(
-      :push_event_payloads,
-      :events_for_migration,
-      column: :event_id
-    )
-  end
-
-  def down
-    drop_table :push_event_payloads
-  end
-end
diff --git a/db/migrate/20170608171156_create_merge_request_diff_files.rb b/db/migrate/20170608171156_create_merge_request_diff_files.rb
deleted file mode 100644
index 94b518455ee..00000000000
--- a/db/migrate/20170608171156_create_merge_request_diff_files.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-class CreateMergeRequestDiffFiles < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def change
-    create_table :merge_request_diff_files, id: false do |t|
-      t.belongs_to :merge_request_diff, null: false, foreign_key: { on_delete: :cascade }
-      t.integer :relative_order, null: false
-      t.boolean :new_file, null: false
-      t.boolean :renamed_file, null: false
-      t.boolean :deleted_file, null: false
-      t.boolean :too_large, null: false
-      t.string :a_mode, null: false
-      t.string :b_mode, null: false
-      t.text :new_path, null: false
-      t.text :old_path, null: false
-      t.text :diff, null: false
-      t.index [:merge_request_diff_id, :relative_order], name: 'index_merge_request_diff_files_on_mr_diff_id_and_order', unique: true
-    end
-  end
-end
diff --git a/db/migrate/20170613154149_create_gpg_signatures.rb b/db/migrate/20170613154149_create_gpg_signatures.rb
deleted file mode 100644
index 181d35fe7af..00000000000
--- a/db/migrate/20170613154149_create_gpg_signatures.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class CreateGpgSignatures < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :gpg_signatures do |t|
-      t.timestamps_with_timezone null: false
-
-      t.references :project, index: true, foreign_key: { on_delete: :cascade }
-      t.references :gpg_key, index: true, foreign_key: { on_delete: :nullify }
-
-      t.boolean :valid_signature
-
-      t.binary :commit_sha
-      t.binary :gpg_key_primary_keyid
-
-      t.text :gpg_key_user_name
-      t.text :gpg_key_user_email
-
-      t.index :commit_sha, unique: true, length: mysql_compatible_index_length
-      t.index :gpg_key_primary_keyid, length: mysql_compatible_index_length
-    end
-  end
-end
diff --git a/db/migrate/20170614115405_merge_request_diff_file_limits_to_mysql.rb b/db/migrate/20170614115405_merge_request_diff_file_limits_to_mysql.rb
deleted file mode 100644
index 4c1cf08aa06..00000000000
--- a/db/migrate/20170614115405_merge_request_diff_file_limits_to_mysql.rb
+++ /dev/null
@@ -1 +0,0 @@
-require_relative 'merge_request_diff_file_limits_to_mysql'
diff --git a/db/migrate/20170616133147_create_merge_request_diff_commits.rb b/db/migrate/20170616133147_create_merge_request_diff_commits.rb
deleted file mode 100644
index 5e148affba2..00000000000
--- a/db/migrate/20170616133147_create_merge_request_diff_commits.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class CreateMergeRequestDiffCommits < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :merge_request_diff_commits, id: false do |t|
-      t.datetime_with_timezone :authored_date
-      t.datetime_with_timezone :committed_date
-      t.belongs_to :merge_request_diff, null: false, foreign_key: { on_delete: :cascade }
-      t.integer :relative_order, null: false
-      t.binary :sha, null: false, limit: 20
-      t.text :author_name
-      t.text :author_email
-      t.text :committer_name
-      t.text :committer_email
-      t.text :message
-
-      t.index [:merge_request_diff_id, :relative_order], name: 'index_merge_request_diff_commits_on_mr_diff_id_and_order', unique: true
-    end
-  end
-end
diff --git a/db/migrate/20170619144837_add_index_for_head_pipeline_merge_request.rb b/db/migrate/20170619144837_add_index_for_head_pipeline_merge_request.rb
deleted file mode 100644
index f97c8a14b8d..00000000000
--- a/db/migrate/20170619144837_add_index_for_head_pipeline_merge_request.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddIndexForHeadPipelineMergeRequest < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :merge_requests, :head_pipeline_id
-  end
-
-  def down
-    remove_concurrent_index :merge_requests, :head_pipeline_id if index_exists?(:merge_requests, :head_pipeline_id)
-  end
-end
diff --git a/db/migrate/20170620064728_create_ci_pipeline_schedule_variables.rb b/db/migrate/20170620064728_create_ci_pipeline_schedule_variables.rb
deleted file mode 100644
index 74f3603505b..00000000000
--- a/db/migrate/20170620064728_create_ci_pipeline_schedule_variables.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class CreateCiPipelineScheduleVariables < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    create_table :ci_pipeline_schedule_variables do |t|
-      t.string :key, null: false
-      t.text :value
-      t.text :encrypted_value
-      t.string :encrypted_value_salt
-      t.string :encrypted_value_iv
-      t.integer :pipeline_schedule_id, null: false
-
-      t.timestamps_with_timezone null: true
-    end
-
-    add_index :ci_pipeline_schedule_variables,
-      [:pipeline_schedule_id, :key],
-      name: "index_ci_pipeline_schedule_variables_on_schedule_id_and_key",
-      unique: true
-  end
-
-  def down
-    drop_table :ci_pipeline_schedule_variables
-  end
-end
diff --git a/db/migrate/20170620065449_add_foreign_key_to_ci_pipeline_schedule_variables.rb b/db/migrate/20170620065449_add_foreign_key_to_ci_pipeline_schedule_variables.rb
deleted file mode 100644
index f6de19aeaf2..00000000000
--- a/db/migrate/20170620065449_add_foreign_key_to_ci_pipeline_schedule_variables.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddForeignKeyToCiPipelineScheduleVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:ci_pipeline_schedule_variables, :ci_pipeline_schedules, column: :pipeline_schedule_id)
-  end
-
-  def down
-    remove_foreign_key(:ci_pipeline_schedule_variables, column: :pipeline_schedule_id)
-  end
-end
diff --git a/db/migrate/20170622130029_correct_protected_branches_foreign_keys.rb b/db/migrate/20170622130029_correct_protected_branches_foreign_keys.rb
deleted file mode 100644
index c4ba3ec2cc0..00000000000
--- a/db/migrate/20170622130029_correct_protected_branches_foreign_keys.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CorrectProtectedBranchesForeignKeys < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    remove_foreign_key_without_error(:protected_branch_push_access_levels,
-                                     column: :protected_branch_id)
-
-    execute <<-EOF
-    DELETE FROM protected_branch_push_access_levels
-    WHERE NOT EXISTS (
-      SELECT true
-      FROM protected_branches
-      WHERE protected_branch_push_access_levels.protected_branch_id = protected_branches.id
-    )
-    AND protected_branch_id IS NOT NULL
-    EOF
-
-    add_concurrent_foreign_key(:protected_branch_push_access_levels,
-                               :protected_branches,
-                               column: :protected_branch_id)
-  end
-
-  def down
-    # Previously there was a foreign key without a CASCADING DELETE, so we'll
-    # just leave the foreign key in place.
-  end
-
-  def remove_foreign_key_without_error(*args)
-    remove_foreign_key(*args)
-  rescue ArgumentError
-  end
-end
diff --git a/db/migrate/20170622132212_add_foreign_key_for_merge_request_diffs.rb b/db/migrate/20170622132212_add_foreign_key_for_merge_request_diffs.rb
deleted file mode 100644
index b826f67ff39..00000000000
--- a/db/migrate/20170622132212_add_foreign_key_for_merge_request_diffs.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddForeignKeyForMergeRequestDiffs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    execute <<-EOF
-    DELETE FROM merge_request_diffs
-    WHERE NOT EXISTS (
-      SELECT true
-      FROM merge_requests
-      WHERE merge_requests.id = merge_request_diffs.merge_request_id
-    )
-    EOF
-
-    add_concurrent_foreign_key(:merge_request_diffs,
-                               :merge_requests,
-                               column: :merge_request_id)
-  end
-
-  def down
-    remove_foreign_key(:merge_request_diffs, column: :merge_request_id)
-  end
-end
diff --git a/db/migrate/20170622135451_rename_duplicated_variable_key.rb b/db/migrate/20170622135451_rename_duplicated_variable_key.rb
deleted file mode 100644
index 06a9529ae79..00000000000
--- a/db/migrate/20170622135451_rename_duplicated_variable_key.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-class RenameDuplicatedVariableKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    execute(<<~SQL)
-      UPDATE ci_variables
-      SET #{key} = CONCAT(#{key}, #{underscore}, id)
-      WHERE id IN (
-        SELECT *
-        FROM ( -- MySQL requires an extra layer
-          SELECT dup.id
-          FROM ci_variables dup
-          INNER JOIN (SELECT max(id) AS id, #{key}, project_id
-                      FROM ci_variables tmp
-                      GROUP BY #{key}, project_id) var
-          USING (#{key}, project_id) where dup.id <> var.id
-        ) dummy
-      )
-    SQL
-  end
-
-  def down
-    # noop
-  end
-
-  def key
-    # key needs to be quoted in MySQL
-    quote_column_name('key')
-  end
-
-  def underscore
-    quote('_')
-  end
-end
diff --git a/db/migrate/20170622135628_add_environment_scope_to_ci_variables.rb b/db/migrate/20170622135628_add_environment_scope_to_ci_variables.rb
deleted file mode 100644
index 8fbb2ab57d5..00000000000
--- a/db/migrate/20170622135628_add_environment_scope_to_ci_variables.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddEnvironmentScopeToCiVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:ci_variables, :environment_scope, :string, default: '*')
-  end
-
-  def down
-    remove_column(:ci_variables, :environment_scope)
-  end
-end
diff --git a/db/migrate/20170622135728_add_unique_constraint_to_ci_variables.rb b/db/migrate/20170622135728_add_unique_constraint_to_ci_variables.rb
deleted file mode 100644
index 240f55766d3..00000000000
--- a/db/migrate/20170622135728_add_unique_constraint_to_ci_variables.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-class AddUniqueConstraintToCiVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  INDEX_NAME = 'index_ci_variables_on_project_id_and_key_and_environment_scope'
-
-  disable_ddl_transaction!
-
-  def up
-    unless this_index_exists?
-      add_concurrent_index(:ci_variables, columns, name: INDEX_NAME, unique: true)
-    end
-  end
-
-  def down
-    if this_index_exists?
-      if Gitlab::Database.mysql? && !index_exists?(:ci_variables, :project_id)
-        # Need to add this index for MySQL project_id foreign key constraint
-        add_concurrent_index(:ci_variables, :project_id)
-      end
-
-      remove_concurrent_index(:ci_variables, columns, name: INDEX_NAME)
-    end
-  end
-
-  private
-
-  def this_index_exists?
-    index_exists?(:ci_variables, columns, name: INDEX_NAME)
-  end
-
-  def columns
-    @columns ||= [:project_id, :key, :environment_scope]
-  end
-end
diff --git a/db/migrate/20170622162730_add_ref_fetched_to_merge_request.rb b/db/migrate/20170622162730_add_ref_fetched_to_merge_request.rb
deleted file mode 100644
index 4715ff7a715..00000000000
--- a/db/migrate/20170622162730_add_ref_fetched_to_merge_request.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRefFetchedToMergeRequest < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :merge_requests, :ref_fetched, :boolean
-  end
-end
diff --git a/db/migrate/20170623080805_remove_ci_variables_project_id_index.rb b/db/migrate/20170623080805_remove_ci_variables_project_id_index.rb
deleted file mode 100644
index 861dbd2ee14..00000000000
--- a/db/migrate/20170623080805_remove_ci_variables_project_id_index.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class RemoveCiVariablesProjectIdIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    if index_exists?(:ci_variables, :project_id)
-      remove_concurrent_index(:ci_variables, :project_id)
-    end
-  end
-
-  def down
-    unless index_exists?(:ci_variables, :project_id)
-      add_concurrent_index(:ci_variables, :project_id)
-    end
-  end
-end
diff --git a/db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb b/db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb
deleted file mode 100644
index 1651a47ebec..00000000000
--- a/db/migrate/20170629171610_rename_application_settings_signin_enabled_to_password_authentication_enabled.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class RenameApplicationSettingsSigninEnabledToPasswordAuthenticationEnabled < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    rename_column_concurrently :application_settings, :signin_enabled, :password_authentication_enabled
-  end
-
-  def down
-    cleanup_concurrent_column_rename :application_settings, :password_authentication_enabled, :signin_enabled
-  end
-end
diff --git a/db/migrate/20170703102400_add_stage_id_foreign_key_to_builds.rb b/db/migrate/20170703102400_add_stage_id_foreign_key_to_builds.rb
deleted file mode 100644
index 36ac360fb0b..00000000000
--- a/db/migrate/20170703102400_add_stage_id_foreign_key_to_builds.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-class AddStageIdForeignKeyToBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    unless index_exists?(:ci_builds, :stage_id)
-      add_concurrent_index(:ci_builds, :stage_id)
-    end
-
-    unless foreign_key_exists?(:ci_builds, :ci_stages, column: :stage_id)
-      add_concurrent_foreign_key(:ci_builds, :ci_stages, column: :stage_id, on_delete: :cascade)
-    end
-  end
-
-  def down
-    if foreign_key_exists?(:ci_builds, column: :stage_id)
-      remove_foreign_key(:ci_builds, column: :stage_id)
-    end
-
-    if index_exists?(:ci_builds, :stage_id)
-      remove_concurrent_index(:ci_builds, :stage_id)
-    end
-  end
-end
diff --git a/db/migrate/20170706151212_add_performance_bar_allowed_group_id_to_application_settings.rb b/db/migrate/20170706151212_add_performance_bar_allowed_group_id_to_application_settings.rb
deleted file mode 100644
index 61416f74b63..00000000000
--- a/db/migrate/20170706151212_add_performance_bar_allowed_group_id_to_application_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddPerformanceBarAllowedGroupIdToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :performance_bar_allowed_group_id, :integer
-  end
-end
diff --git a/db/migrate/20170707183807_add_group_id_to_milestones.rb b/db/migrate/20170707183807_add_group_id_to_milestones.rb
deleted file mode 100644
index e778a30192f..00000000000
--- a/db/migrate/20170707183807_add_group_id_to_milestones.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class AddGroupIdToMilestones < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    return if column_exists? :milestones, :group_id
-
-    change_column_null :milestones, :project_id, true
-
-    add_column :milestones, :group_id, :integer
-  end
-
-  def down
-    # We cannot rollback project_id not null constraint if there are records
-    # with null values.
-    execute "DELETE from milestones WHERE project_id IS NULL"
-
-    remove_column :milestones, :group_id
-    change_column :milestones, :project_id, :integer, null: false
-  end
-end
diff --git a/db/migrate/20170707184243_add_group_milestone_id_indexes.rb b/db/migrate/20170707184243_add_group_milestone_id_indexes.rb
deleted file mode 100644
index 545ee070194..00000000000
--- a/db/migrate/20170707184243_add_group_milestone_id_indexes.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class AddGroupMilestoneIdIndexes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    return if index_exists?(:milestones, :group_id)
-
-    add_concurrent_foreign_key :milestones, :namespaces, column: :group_id, on_delete: :cascade
-
-    add_concurrent_index :milestones, :group_id
-  end
-
-  def down
-    remove_foreign_key :milestones, column: :group_id
-
-    remove_concurrent_index :milestones, :group_id
-  end
-end
diff --git a/db/migrate/20170707184244_remove_wrong_versions_from_schema_versions.rb b/db/migrate/20170707184244_remove_wrong_versions_from_schema_versions.rb
deleted file mode 100644
index f99206c7f78..00000000000
--- a/db/migrate/20170707184244_remove_wrong_versions_from_schema_versions.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class RemoveWrongVersionsFromSchemaVersions < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    execute("DELETE FROM schema_migrations WHERE version IN ('20170723183807', '20170724184243')")
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170710083355_clean_stage_id_reference_migration.rb b/db/migrate/20170710083355_clean_stage_id_reference_migration.rb
deleted file mode 100644
index d33c6f53b15..00000000000
--- a/db/migrate/20170710083355_clean_stage_id_reference_migration.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class CleanStageIdReferenceMigration < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  ##
-  # `MigrateStageIdReferenceInBackground` background migration cleanup.
-  #
-  def up
-    Gitlab::BackgroundMigration.steal('MigrateBuildStageIdReference')
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/migrate/20170711145320_add_status_to_ci_stages.rb b/db/migrate/20170711145320_add_status_to_ci_stages.rb
deleted file mode 100644
index 3ea7b750882..00000000000
--- a/db/migrate/20170711145320_add_status_to_ci_stages.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddStatusToCiStages < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_stages, :status, :integer
-  end
-end
diff --git a/db/migrate/20170713104829_add_foreign_key_to_merge_requests.rb b/db/migrate/20170713104829_add_foreign_key_to_merge_requests.rb
deleted file mode 100644
index 908b122c659..00000000000
--- a/db/migrate/20170713104829_add_foreign_key_to_merge_requests.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-class AddForeignKeyToMergeRequests < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    self.table_name = 'merge_requests'
-    include ::EachBatch
-  end
-
-  def up
-    scope = <<-SQL.strip_heredoc
-      head_pipeline_id IS NOT NULL
-        AND NOT EXISTS (
-          SELECT 1 FROM ci_pipelines
-            WHERE ci_pipelines.id = merge_requests.head_pipeline_id
-        )
-    SQL
-
-    MergeRequest.where(scope).each_batch(of: 1000) do |merge_requests|
-      merge_requests.update_all(head_pipeline_id: nil)
-    end
-
-    unless foreign_key_exists?(:merge_requests, column: :head_pipeline_id)
-      add_concurrent_foreign_key(:merge_requests, :ci_pipelines,
-                                 column: :head_pipeline_id, on_delete: :nullify)
-    end
-  end
-
-  def down
-    if foreign_key_exists?(:merge_requests, column: :head_pipeline_id)
-      remove_foreign_key(:merge_requests, column: :head_pipeline_id)
-    end
-  end
-end
diff --git a/db/migrate/20170717074009_move_system_upload_folder.rb b/db/migrate/20170717074009_move_system_upload_folder.rb
deleted file mode 100644
index 6c57a751c8d..00000000000
--- a/db/migrate/20170717074009_move_system_upload_folder.rb
+++ /dev/null
@@ -1,70 +0,0 @@
-class MoveSystemUploadFolder < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    unless file_storage?
-      say 'Using object storage, no need to move.'
-      return
-    end
-
-    unless File.directory?(old_directory)
-      say "#{old_directory} doesn't exist, no need to move it."
-      return
-    end
-
-    if File.directory?(new_directory)
-      say "#{new_directory} already exists. No need to redo the move."
-      return
-    end
-
-    FileUtils.mkdir_p(File.join(base_directory, '-'))
-
-    say "Moving #{old_directory} -> #{new_directory}"
-    FileUtils.mv(old_directory, new_directory)
-    FileUtils.ln_s(new_directory, old_directory)
-  end
-
-  def down
-    unless file_storage?
-      say 'Using object storage, no need to move.'
-      return
-    end
-
-    unless File.directory?(new_directory)
-      say "#{new_directory} doesn't exist, no need to move it."
-      return
-    end
-
-    if !File.symlink?(old_directory) && File.directory?(old_directory)
-      say "#{old_directory} already exists and is not a symlink, no need to revert."
-      return
-    end
-
-    if File.symlink?(old_directory)
-      say "Removing #{old_directory} -> #{new_directory} symlink"
-      FileUtils.rm(old_directory)
-    end
-
-    say "Moving #{new_directory} -> #{old_directory}"
-    FileUtils.mv(new_directory, old_directory)
-  end
-
-  def new_directory
-    File.join(base_directory, '-', 'system')
-  end
-
-  def old_directory
-    File.join(base_directory, 'system')
-  end
-
-  def base_directory
-    File.join(Rails.root, 'public', 'uploads')
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-end
diff --git a/db/migrate/20170717200542_add_trusted_column_to_oauth_applications.rb b/db/migrate/20170717200542_add_trusted_column_to_oauth_applications.rb
deleted file mode 100644
index d9ae86f6c52..00000000000
--- a/db/migrate/20170717200542_add_trusted_column_to_oauth_applications.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddTrustedColumnToOauthApplications < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:oauth_applications, :trusted, :boolean, default: false)
-  end
-
-  def down
-    remove_column(:oauth_applications, :trusted)
-  end
-end
diff --git a/db/migrate/20170720111708_add_lock_version_to_ci_stages.rb b/db/migrate/20170720111708_add_lock_version_to_ci_stages.rb
deleted file mode 100644
index a5caca7e80c..00000000000
--- a/db/migrate/20170720111708_add_lock_version_to_ci_stages.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddLockVersionToCiStages < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_stages, :lock_version, :integer
-  end
-end
diff --git a/db/migrate/20170720122741_create_user_custom_attributes.rb b/db/migrate/20170720122741_create_user_custom_attributes.rb
deleted file mode 100644
index 0e6f37d7317..00000000000
--- a/db/migrate/20170720122741_create_user_custom_attributes.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class CreateUserCustomAttributes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :user_custom_attributes do |t|
-      t.timestamps_with_timezone null: false
-      t.references :user, null: false, foreign_key: { on_delete: :cascade }
-      t.string :key, null: false
-      t.string :value, null: false
-
-      t.index [:user_id, :key], unique: true
-      t.index [:key, :value]
-    end
-  end
-end
diff --git a/db/migrate/20170720130522_create_ci_pipeline_variables.rb b/db/migrate/20170720130522_create_ci_pipeline_variables.rb
deleted file mode 100644
index 4f162d46cf5..00000000000
--- a/db/migrate/20170720130522_create_ci_pipeline_variables.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class CreateCiPipelineVariables < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    create_table :ci_pipeline_variables do |t|
-      t.string :key, null: false
-      t.text :value
-      t.text :encrypted_value
-      t.string :encrypted_value_salt
-      t.string :encrypted_value_iv
-      t.integer :pipeline_id, null: false
-    end
-
-    add_index :ci_pipeline_variables, [:pipeline_id, :key], unique: true
-  end
-
-  def down
-    drop_table :ci_pipeline_variables
-  end
-end
diff --git a/db/migrate/20170720130749_add_foreign_key_to_ci_pipeline_variables.rb b/db/migrate/20170720130749_add_foreign_key_to_ci_pipeline_variables.rb
deleted file mode 100644
index df9350d9ad5..00000000000
--- a/db/migrate/20170720130749_add_foreign_key_to_ci_pipeline_variables.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddForeignKeyToCiPipelineVariables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:ci_pipeline_variables, :ci_pipelines, column: :pipeline_id)
-  end
-
-  def down
-    remove_foreign_key(:ci_pipeline_variables, column: :pipeline_id)
-  end
-end
diff --git a/db/migrate/20170724214302_add_lower_path_index_to_redirect_routes.rb b/db/migrate/20170724214302_add_lower_path_index_to_redirect_routes.rb
deleted file mode 100644
index 1a6516f8777..00000000000
--- a/db/migrate/20170724214302_add_lower_path_index_to_redirect_routes.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddLowerPathIndexToRedirectRoutes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  INDEX_NAME = 'index_on_redirect_routes_lower_path'
-
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    execute "CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON redirect_routes (LOWER(path));"
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    # Why not use remove_concurrent_index_by_name?
-    #
-    # `index_exists?` doesn't work on this index. Perhaps this is related to the
-    # fact that the index doesn't show up in the schema. And apparently it isn't
-    # trivial to write a query that checks for an index. BUT there is a
-    # convenient `IF EXISTS` parameter for `DROP INDEX`.
-    if supports_drop_index_concurrently?
-      disable_statement_timeout do
-        execute "DROP INDEX CONCURRENTLY IF EXISTS #{INDEX_NAME};"
-      end
-    else
-      execute "DROP INDEX IF EXISTS #{INDEX_NAME};"
-    end
-  end
-end
diff --git a/db/migrate/20170725145659_add_binary_to_merge_request_diff_files.rb b/db/migrate/20170725145659_add_binary_to_merge_request_diff_files.rb
deleted file mode 100644
index c7d377547e4..00000000000
--- a/db/migrate/20170725145659_add_binary_to_merge_request_diff_files.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddBinaryToMergeRequestDiffFiles < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :merge_request_diff_files, :binary, :boolean
-  end
-end
diff --git a/db/migrate/20170727123534_add_index_on_events_project_id_id.rb b/db/migrate/20170727123534_add_index_on_events_project_id_id.rb
deleted file mode 100644
index 076b8ee87b2..00000000000
--- a/db/migrate/20170727123534_add_index_on_events_project_id_id.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexOnEventsProjectIdId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  COLUMNS = %i[project_id id].freeze
-  TABLES = %i[events events_for_migration].freeze
-
-  disable_ddl_transaction!
-
-  def up
-    TABLES.each do |table|
-      add_concurrent_index(table, COLUMNS) unless index_exists?(table, COLUMNS)
-
-      # We remove the index _after_ adding the new one since MySQL doesn't let
-      # you remove an index when a foreign key exists for the same column.
-      if index_exists?(table, :project_id)
-        remove_concurrent_index(table, :project_id)
-      end
-    end
-  end
-
-  def down
-    TABLES.each do |table|
-      unless index_exists?(table, :project_id)
-        add_concurrent_index(table, :project_id)
-      end
-
-      unless index_exists?(table, COLUMNS)
-        remove_concurrent_index(table, COLUMNS)
-      end
-    end
-  end
-end
diff --git a/db/migrate/20170731175128_add_percentages_to_conv_dev.rb b/db/migrate/20170731175128_add_percentages_to_conv_dev.rb
deleted file mode 100644
index 522e99c0751..00000000000
--- a/db/migrate/20170731175128_add_percentages_to_conv_dev.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-class AddPercentagesToConvDev < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default :conversational_development_index_metrics, :percentage_boards, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_ci_pipelines, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_deployments, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_environments, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_issues, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_merge_requests, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_milestones, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_notes, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_projects_prometheus_active, :float, allow_null: false, default: 0
-    add_column_with_default :conversational_development_index_metrics, :percentage_service_desk_issues, :float, allow_null: false, default: 0
-  end
-
-  def down
-    remove_column :conversational_development_index_metrics, :percentage_boards
-    remove_column :conversational_development_index_metrics, :percentage_ci_pipelines
-    remove_column :conversational_development_index_metrics, :percentage_deployments
-    remove_column :conversational_development_index_metrics, :percentage_environments
-    remove_column :conversational_development_index_metrics, :percentage_issues
-    remove_column :conversational_development_index_metrics, :percentage_merge_requests
-    remove_column :conversational_development_index_metrics, :percentage_milestones
-    remove_column :conversational_development_index_metrics, :percentage_notes
-    remove_column :conversational_development_index_metrics, :percentage_projects_prometheus_active
-    remove_column :conversational_development_index_metrics, :percentage_service_desk_issues
-  end
-end
diff --git a/db/migrate/20170731183033_add_merge_jid_to_merge_requests.rb b/db/migrate/20170731183033_add_merge_jid_to_merge_requests.rb
deleted file mode 100644
index 3c677f3bc2d..00000000000
--- a/db/migrate/20170731183033_add_merge_jid_to_merge_requests.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddMergeJidToMergeRequests < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :merge_requests, :merge_jid, :string
-  end
-end
diff --git a/db/migrate/20170802013652_add_storage_fields_to_project.rb b/db/migrate/20170802013652_add_storage_fields_to_project.rb
deleted file mode 100644
index d6672b9b3af..00000000000
--- a/db/migrate/20170802013652_add_storage_fields_to_project.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddStorageFieldsToProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    add_column :projects, :storage_version, :integer, limit: 2
-  end
-
-  def down
-    remove_column :projects, :storage_version
-  end
-end
diff --git a/db/migrate/20170803130232_reorganise_issues_indexes_for_faster_sorting.rb b/db/migrate/20170803130232_reorganise_issues_indexes_for_faster_sorting.rb
deleted file mode 100644
index e92b5f28685..00000000000
--- a/db/migrate/20170803130232_reorganise_issues_indexes_for_faster_sorting.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ReorganiseIssuesIndexesForFasterSorting < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  REMOVE_INDEX_COLUMNS = %i[project_id created_at due_date updated_at].freeze
-
-  ADD_INDEX_COLUMNS = [
-    %i[project_id created_at id state],
-    %i[project_id due_date id state],
-    %i[project_id updated_at id state]
-  ].freeze
-
-  TABLE = :issues
-
-  def up
-    add_indexes(ADD_INDEX_COLUMNS)
-    remove_indexes(REMOVE_INDEX_COLUMNS)
-  end
-
-  def down
-    add_indexes(REMOVE_INDEX_COLUMNS)
-    remove_indexes(ADD_INDEX_COLUMNS)
-  end
-
-  def add_indexes(columns)
-    columns.each do |column|
-      add_concurrent_index(TABLE, column) unless index_exists?(TABLE, column)
-    end
-  end
-
-  def remove_indexes(columns)
-    columns.each do |column|
-      remove_concurrent_index(TABLE, column) if index_exists?(TABLE, column)
-    end
-  end
-end
diff --git a/db/migrate/20170807071105_add_hashed_storage_to_settings.rb b/db/migrate/20170807071105_add_hashed_storage_to_settings.rb
deleted file mode 100644
index cfb89743127..00000000000
--- a/db/migrate/20170807071105_add_hashed_storage_to_settings.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddHashedStorageToSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings, :hashed_storage_enabled, :boolean, default: false
-  end
-
-  def down
-    remove_columns :application_settings, :hashed_storage_enabled
-  end
-end
diff --git a/db/migrate/20170809133343_add_broadcast_messages_index.rb b/db/migrate/20170809133343_add_broadcast_messages_index.rb
deleted file mode 100644
index bcbc6c9f7d2..00000000000
--- a/db/migrate/20170809133343_add_broadcast_messages_index.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddBroadcastMessagesIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  COLUMNS = %i[starts_at ends_at id].freeze
-
-  def up
-    add_concurrent_index :broadcast_messages, COLUMNS
-  end
-
-  def down
-    remove_concurrent_index :broadcast_messages, COLUMNS
-  end
-end
diff --git a/db/migrate/20170809134534_add_broadcast_message_not_null_constraints.rb b/db/migrate/20170809134534_add_broadcast_message_not_null_constraints.rb
deleted file mode 100644
index fd8cdbb95aa..00000000000
--- a/db/migrate/20170809134534_add_broadcast_message_not_null_constraints.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddBroadcastMessageNotNullConstraints < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  COLUMNS = %i[starts_at ends_at created_at updated_at message_html]
-
-  class BroadcastMessage < ActiveRecord::Base
-    self.table_name = 'broadcast_messages'
-  end
-
-  def up
-    COLUMNS.each do |column|
-      BroadcastMessage.where(column => nil).delete_all
-
-      change_column_null :broadcast_messages, column, false
-    end
-  end
-
-  def down
-    COLUMNS.each do |column|
-      change_column_null :broadcast_messages, column, true
-    end
-  end
-end
diff --git a/db/migrate/20170809142252_cleanup_appearances_schema.rb b/db/migrate/20170809142252_cleanup_appearances_schema.rb
deleted file mode 100644
index 4c5d6a6d75d..00000000000
--- a/db/migrate/20170809142252_cleanup_appearances_schema.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanupAppearancesSchema < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  NOT_NULL_COLUMNS = %i[title description created_at updated_at]
-
-  TIME_COLUMNS = %i[created_at updated_at]
-
-  def up
-    NOT_NULL_COLUMNS.each do |column|
-      change_column_null :appearances, column, false
-    end
-
-    TIME_COLUMNS.each do |column|
-      change_column :appearances, column, :datetime_with_timezone
-    end
-  end
-
-  def down
-    NOT_NULL_COLUMNS.each do |column|
-      change_column_null :appearances, column, true
-    end
-
-    TIME_COLUMNS.each do |column|
-      change_column :appearances, column, :datetime # rubocop: disable Migration/Datetime
-    end
-  end
-end
diff --git a/db/migrate/20170809161910_add_project_export_enabled_to_application_settings.rb b/db/migrate/20170809161910_add_project_export_enabled_to_application_settings.rb
deleted file mode 100644
index 9dd520de264..00000000000
--- a/db/migrate/20170809161910_add_project_export_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class AddProjectExportEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    add_column_with_default(:application_settings, :project_export_enabled, :boolean, default: true)
-  end
-
-  def down
-    remove_column(:application_settings, :project_export_enabled)
-  end
-end
diff --git a/db/migrate/20170815221154_add_discussion_locked_to_issuable.rb b/db/migrate/20170815221154_add_discussion_locked_to_issuable.rb
deleted file mode 100644
index 1444ca480b3..00000000000
--- a/db/migrate/20170815221154_add_discussion_locked_to_issuable.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AddDiscussionLockedToIssuable < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    add_column(:merge_requests, :discussion_locked, :boolean)
-    add_column(:issues, :discussion_locked, :boolean)
-  end
-
-  def down
-    remove_column(:merge_requests, :discussion_locked)
-    remove_column(:issues, :discussion_locked)
-  end
-end
diff --git a/db/migrate/20170816133938_add_access_level_to_ci_runners.rb b/db/migrate/20170816133938_add_access_level_to_ci_runners.rb
deleted file mode 100644
index 5a1ea9514d1..00000000000
--- a/db/migrate/20170816133938_add_access_level_to_ci_runners.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class AddAccessLevelToCiRunners < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:ci_runners, :access_level, :integer,
-                            default: Ci::Runner.access_levels['not_protected'])
-  end
-
-  def down
-    remove_column(:ci_runners, :access_level)
-  end
-end
diff --git a/db/migrate/20170816133940_add_protected_to_ci_builds.rb b/db/migrate/20170816133940_add_protected_to_ci_builds.rb
deleted file mode 100644
index 13e1be0d89c..00000000000
--- a/db/migrate/20170816133940_add_protected_to_ci_builds.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddProtectedToCiBuilds < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :protected, :boolean
-  end
-end
diff --git a/db/migrate/20170816143940_add_protected_to_ci_pipelines.rb b/db/migrate/20170816143940_add_protected_to_ci_pipelines.rb
deleted file mode 100644
index aefaf4a487b..00000000000
--- a/db/migrate/20170816143940_add_protected_to_ci_pipelines.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddProtectedToCiPipelines < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :ci_pipelines, :protected, :boolean
-  end
-end
diff --git a/db/migrate/20170816153940_add_index_on_ci_builds_protected.rb b/db/migrate/20170816153940_add_index_on_ci_builds_protected.rb
deleted file mode 100644
index fbe5fe31ae8..00000000000
--- a/db/migrate/20170816153940_add_index_on_ci_builds_protected.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddIndexOnCiBuildsProtected < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_builds, :protected
-  end
-
-  def down
-    remove_concurrent_index :ci_builds, :protected if index_exists?(:ci_builds, :protected)
-  end
-end
diff --git a/db/migrate/20170816234252_add_theme_id_to_users.rb b/db/migrate/20170816234252_add_theme_id_to_users.rb
deleted file mode 100644
index bd04445cac6..00000000000
--- a/db/migrate/20170816234252_add_theme_id_to_users.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddThemeIdToUsers < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :users, :theme_id, :integer, limit: 2
-  end
-end
diff --git a/db/migrate/20170817123339_add_verification_status_to_gpg_signatures.rb b/db/migrate/20170817123339_add_verification_status_to_gpg_signatures.rb
deleted file mode 100644
index c7d81dc005a..00000000000
--- a/db/migrate/20170817123339_add_verification_status_to_gpg_signatures.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class AddVerificationStatusToGpgSignatures < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  def up
-    # First we remove all signatures because we need to re-verify them all
-    # again anyway (because of the updated verification logic).
-    #
-    # This makes adding the column with default values faster
-    truncate(:gpg_signatures)
-
-    add_column_with_default(:gpg_signatures, :verification_status, :smallint, default: 0)
-  end
-
-  def down
-    remove_column(:gpg_signatures, :verification_status)
-  end
-end
diff --git a/db/migrate/20170820100558_correct_protected_tags_foreign_keys.rb b/db/migrate/20170820100558_correct_protected_tags_foreign_keys.rb
deleted file mode 100644
index 82e05885b0e..00000000000
--- a/db/migrate/20170820100558_correct_protected_tags_foreign_keys.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CorrectProtectedTagsForeignKeys < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    remove_foreign_key_without_error(:protected_tag_create_access_levels,
-                                     column: :protected_tag_id)
-
-    execute <<-EOF
-    DELETE FROM protected_tag_create_access_levels
-    WHERE NOT EXISTS (
-      SELECT true
-      FROM protected_tags
-      WHERE protected_tag_create_access_levels.protected_tag_id = protected_tags.id
-    )
-    AND protected_tag_id IS NOT NULL
-    EOF
-
-    add_concurrent_foreign_key(:protected_tag_create_access_levels,
-                               :protected_tags,
-                               column: :protected_tag_id)
-  end
-
-  def down
-    # Previously there was a foreign key without a CASCADING DELETE, so we'll
-    # just leave the foreign key in place.
-  end
-end
diff --git a/db/migrate/20170820120108_create_user_synced_attributes_metadata.rb b/db/migrate/20170820120108_create_user_synced_attributes_metadata.rb
deleted file mode 100644
index 131dcf7ac25..00000000000
--- a/db/migrate/20170820120108_create_user_synced_attributes_metadata.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class CreateUserSyncedAttributesMetadata < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :user_synced_attributes_metadata do |t|
-      t.boolean :name_synced, default: false
-      t.boolean :email_synced, default: false
-      t.boolean :location_synced, default: false
-      t.references :user, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.string :provider
-    end
-  end
-end
diff --git a/db/migrate/20170824101926_add_auto_devops_enabled_to_application_settings.rb b/db/migrate/20170824101926_add_auto_devops_enabled_to_application_settings.rb
deleted file mode 100644
index f7c0aeab8f9..00000000000
--- a/db/migrate/20170824101926_add_auto_devops_enabled_to_application_settings.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddAutoDevopsEnabledToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:application_settings, :auto_devops_enabled, :boolean, default: false)
-  end
-
-  def down
-    remove_column(:application_settings, :auto_devops_enabled, :boolean)
-  end
-end
diff --git a/db/migrate/20170824162758_allow_appearances_description_html_null.rb b/db/migrate/20170824162758_allow_appearances_description_html_null.rb
deleted file mode 100644
index 6efa3452796..00000000000
--- a/db/migrate/20170824162758_allow_appearances_description_html_null.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AllowAppearancesDescriptionHtmlNull < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    change_column_null :appearances, :description_html, true
-  end
-
-  def down
-    # This column should not have a `NOT NULL` class, so we don't want to revert
-    # back to re-adding it.
-  end
-end
diff --git a/db/migrate/20170825015534_add_file_store_to_lfs_objects.rb b/db/migrate/20170825015534_add_file_store_to_lfs_objects.rb
deleted file mode 100644
index be543ffc983..00000000000
--- a/db/migrate/20170825015534_add_file_store_to_lfs_objects.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddFileStoreToLfsObjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column(:lfs_objects, :file_store, :integer)
-  end
-end
diff --git a/db/migrate/20170825104051_migrate_issues_to_ghost_user.rb b/db/migrate/20170825104051_migrate_issues_to_ghost_user.rb
deleted file mode 100644
index b1adccc9c5c..00000000000
--- a/db/migrate/20170825104051_migrate_issues_to_ghost_user.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-class MigrateIssuesToGhostUser < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class User < ActiveRecord::Base
-    self.table_name = 'users'
-  end
-
-  class Issue < ActiveRecord::Base
-    self.table_name = 'issues'
-
-    include ::EachBatch
-  end
-
-  def reset_column_in_migration_models
-    ActiveRecord::Base.clear_cache!
-
-    ::User.reset_column_information
-    ::Namespace.reset_column_information
-  end
-
-  def up
-    reset_column_in_migration_models
-
-    # we use the model method because rewriting it is too complicated and would require copying multiple methods
-    ghost_id = ::User.ghost.id
-
-    Issue.where('NOT EXISTS (?)', User.unscoped.select(1).where('issues.author_id = users.id')).each_batch do |relation|
-      relation.update_all(author_id: ghost_id)
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170825154015_resolve_outdated_diff_discussions.rb b/db/migrate/20170825154015_resolve_outdated_diff_discussions.rb
deleted file mode 100644
index 1aed21f10a0..00000000000
--- a/db/migrate/20170825154015_resolve_outdated_diff_discussions.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class ResolveOutdatedDiffDiscussions < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column(:projects, :resolve_outdated_diff_discussions, :boolean)
-  end
-end
diff --git a/db/migrate/20170827123848_add_index_on_merge_request_diff_commit_sha.rb b/db/migrate/20170827123848_add_index_on_merge_request_diff_commit_sha.rb
deleted file mode 100644
index e2061b5600a..00000000000
--- a/db/migrate/20170827123848_add_index_on_merge_request_diff_commit_sha.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable RemoveIndex
-
-class AddIndexOnMergeRequestDiffCommitSha < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :merge_request_diff_commits, :sha, length: mysql_compatible_index_length
-  end
-
-  def down
-    remove_index :merge_request_diff_commits, :sha if index_exists? :merge_request_diff_commits, :sha
-  end
-end
diff --git a/db/migrate/20170828093725_create_project_auto_dev_ops.rb b/db/migrate/20170828093725_create_project_auto_dev_ops.rb
deleted file mode 100644
index ea895dc14c1..00000000000
--- a/db/migrate/20170828093725_create_project_auto_dev_ops.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class CreateProjectAutoDevOps < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    create_table :project_auto_devops do |t|
-      t.belongs_to :project, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-      t.boolean :enabled, default: nil, null: true
-      t.string :domain
-    end
-  end
-
-  def down
-    drop_table(:project_auto_devops)
-  end
-end
diff --git a/db/migrate/20170828135939_migrate_user_external_mail_data.rb b/db/migrate/20170828135939_migrate_user_external_mail_data.rb
deleted file mode 100644
index 9ee4a4598bf..00000000000
--- a/db/migrate/20170828135939_migrate_user_external_mail_data.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateUserExternalMailData < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class User < ActiveRecord::Base
-    self.table_name = 'users'
-
-    include EachBatch
-  end
-
-  class UserSyncedAttributesMetadata < ActiveRecord::Base
-    self.table_name = 'user_synced_attributes_metadata'
-
-    include EachBatch
-  end
-
-  def up
-    User.each_batch do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      execute <<-EOF
-        INSERT INTO user_synced_attributes_metadata (user_id, provider, email_synced)
-        SELECT id, email_provider, external_email
-        FROM users
-        WHERE external_email = TRUE
-        AND NOT EXISTS (
-          SELECT true
-          FROM user_synced_attributes_metadata
-          WHERE user_id = users.id
-          AND (provider = users.email_provider OR (provider IS NULL AND users.email_provider IS NULL))
-        )
-        AND id BETWEEN #{start_id} AND #{end_id}
-      EOF
-    end
-  end
-
-  def down
-    UserSyncedAttributesMetadata.each_batch do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      execute <<-EOF
-        UPDATE users
-        SET users.email_provider = metadata.provider, users.external_email = metadata.email_synced
-        FROM user_synced_attributes_metadata as metadata, users
-        WHERE metadata.email_synced = TRUE
-        AND metadata.user_id = users.id
-        AND id BETWEEN #{start_id} AND #{end_id}
-      EOF
-    end
-  end
-end
diff --git a/db/migrate/20170830125940_add_failure_reason_to_ci_builds.rb b/db/migrate/20170830125940_add_failure_reason_to_ci_builds.rb
deleted file mode 100644
index 44f709868ca..00000000000
--- a/db/migrate/20170830125940_add_failure_reason_to_ci_builds.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddFailureReasonToCiBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_builds, :failure_reason, :integer
-  end
-end
diff --git a/db/migrate/20170830130119_steal_remaining_event_migration_jobs.rb b/db/migrate/20170830130119_steal_remaining_event_migration_jobs.rb
deleted file mode 100644
index bcc34d56d2d..00000000000
--- a/db/migrate/20170830130119_steal_remaining_event_migration_jobs.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class StealRemainingEventMigrationJobs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    Gitlab::BackgroundMigration.steal('MigrateEventsToPushEventPayloads')
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20170830131015_swap_event_migration_tables.rb b/db/migrate/20170830131015_swap_event_migration_tables.rb
deleted file mode 100644
index fb3b2472ffe..00000000000
--- a/db/migrate/20170830131015_swap_event_migration_tables.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class SwapEventMigrationTables < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  class Event < ActiveRecord::Base
-    self.table_name = 'events'
-  end
-
-  def up
-    rename_tables
-  end
-
-  def down
-    rename_tables
-  end
-
-  def rename_tables
-    rename_table :events, :events_old
-    rename_table :events_for_migration, :events
-    rename_table :events_old, :events_for_migration
-
-    # Once swapped we need to reset the primary key of the new "events" table to
-    # make sure that data created starts with the right value. This isn't
-    # necessary for events_for_migration since we replicate existing primary key
-    # values to it.
-    if Gitlab::Database.postgresql?
-      reset_primary_key_for_postgresql
-    else
-      reset_primary_key_for_mysql
-    end
-  end
-
-  def reset_primary_key_for_postgresql
-    reset_pk_sequence!(Event.table_name)
-  end
-
-  def reset_primary_key_for_mysql
-    amount = Event.pluck('COALESCE(MAX(id), 1)').first
-
-    execute "ALTER TABLE #{Event.table_name} AUTO_INCREMENT = #{amount}"
-  end
-end
diff --git a/db/migrate/20170831092813_add_config_source_to_pipelines.rb b/db/migrate/20170831092813_add_config_source_to_pipelines.rb
deleted file mode 100644
index ba1f73f0e68..00000000000
--- a/db/migrate/20170831092813_add_config_source_to_pipelines.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddConfigSourceToPipelines < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column(:ci_pipelines, :config_source, :integer, allow_null: true)
-  end
-end
diff --git a/db/migrate/20170901071411_add_foreign_key_to_issue_author.rb b/db/migrate/20170901071411_add_foreign_key_to_issue_author.rb
deleted file mode 100644
index 00d0b0f2c7f..00000000000
--- a/db/migrate/20170901071411_add_foreign_key_to_issue_author.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class AddForeignKeyToIssueAuthor < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:issues, :users, column: :author_id, on_delete: :nullify)
-  end
-
-  def down
-    remove_foreign_key(:issues, column: :author_id)
-  end
-end
diff --git a/db/migrate/20170904092148_add_email_confirmation.rb b/db/migrate/20170904092148_add_email_confirmation.rb
deleted file mode 100644
index 8bfb2005936..00000000000
--- a/db/migrate/20170904092148_add_email_confirmation.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddEmailConfirmation < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    add_column :emails, :confirmation_token, :string
-    add_column :emails, :confirmed_at, :datetime_with_timezone
-    add_column :emails, :confirmation_sent_at, :datetime_with_timezone
-  end
-end
diff --git a/db/migrate/20170905112933_add_resolved_by_push_to_notes.rb b/db/migrate/20170905112933_add_resolved_by_push_to_notes.rb
deleted file mode 100644
index 1f27ea3c467..00000000000
--- a/db/migrate/20170905112933_add_resolved_by_push_to_notes.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddResolvedByPushToNotes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :notes, :resolved_by_push, :boolean
-  end
-end
diff --git a/db/migrate/20170906133745_add_runners_token_to_groups.rb b/db/migrate/20170906133745_add_runners_token_to_groups.rb
deleted file mode 100644
index a02160feb83..00000000000
--- a/db/migrate/20170906133745_add_runners_token_to_groups.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddRunnersTokenToGroups < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :namespaces, :runners_token, :string
-  end
-end
diff --git a/db/migrate/20170909090114_add_email_confirmation_index.rb b/db/migrate/20170909090114_add_email_confirmation_index.rb
deleted file mode 100644
index 31c48db2bd2..00000000000
--- a/db/migrate/20170909090114_add_email_confirmation_index.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddEmailConfirmationIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  # Not necessary to remove duplicates, as :confirmation_token is a new column
-  def up
-    add_concurrent_index :emails, :confirmation_token, unique: true
-  end
-
-  def down
-    remove_concurrent_index :emails, :confirmation_token if index_exists?(:emails, :confirmation_token)
-  end
-end
diff --git a/db/migrate/20170909150936_add_spent_at_to_timelogs.rb b/db/migrate/20170909150936_add_spent_at_to_timelogs.rb
deleted file mode 100644
index 3a2c900b445..00000000000
--- a/db/migrate/20170909150936_add_spent_at_to_timelogs.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddSpentAtToTimelogs < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    add_column :timelogs, :spent_at, :datetime_with_timezone
-  end
-
-  def down
-    remove_column :timelogs, :spent_at
-  end
-end
diff --git a/db/migrate/20170912113435_clean_stages_statuses_migration.rb b/db/migrate/20170912113435_clean_stages_statuses_migration.rb
deleted file mode 100644
index f2040f819cd..00000000000
--- a/db/migrate/20170912113435_clean_stages_statuses_migration.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-class CleanStagesStatusesMigration < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Stage < ActiveRecord::Base
-    include ::EachBatch
-    self.table_name = 'ci_stages'
-  end
-
-  def up
-    Gitlab::BackgroundMigration.steal('MigrateStageStatus')
-
-    Stage.where('status IS NULL').each_batch(of: 50) do |batch|
-      range = batch.pluck('MIN(id)', 'MAX(id)').first
-
-      Gitlab::BackgroundMigration::MigrateStageStatus.new.perform(*range)
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/migrate/20170913131410_environments_project_id_not_null.rb b/db/migrate/20170913131410_environments_project_id_not_null.rb
deleted file mode 100644
index ba66113945b..00000000000
--- a/db/migrate/20170913131410_environments_project_id_not_null.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class EnvironmentsProjectIdNotNull < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    change_column_null :environments, :project_id, false
-  end
-
-  def down
-    change_column_null :environments, :project_id, true
-  end
-end
diff --git a/db/migrate/20170914135630_add_index_for_recent_push_events.rb b/db/migrate/20170914135630_add_index_for_recent_push_events.rb
deleted file mode 100644
index ac86185ba50..00000000000
--- a/db/migrate/20170914135630_add_index_for_recent_push_events.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddIndexForRecentPushEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index_if_not_present(
-      :merge_requests,
-      [:source_project_id, :source_branch]
-    )
-
-    remove_concurrent_index_if_present(:merge_requests, :source_project_id)
-  end
-
-  def down
-    add_concurrent_index_if_not_present(:merge_requests, :source_project_id)
-
-    remove_concurrent_index_if_present(
-      :merge_requests,
-      [:source_project_id, :source_branch]
-    )
-  end
-
-  def add_concurrent_index_if_not_present(table, columns)
-    return if index_exists?(table, columns)
-
-    add_concurrent_index(table, columns)
-  end
-
-  def remove_concurrent_index_if_present(table, columns)
-    return unless index_exists?(table, columns)
-
-    remove_concurrent_index(table, columns)
-  end
-end
diff --git a/db/migrate/20170918072948_create_job_artifacts.rb b/db/migrate/20170918072948_create_job_artifacts.rb
deleted file mode 100644
index 4dd24aaff99..00000000000
--- a/db/migrate/20170918072948_create_job_artifacts.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class CreateJobArtifacts < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :ci_job_artifacts do |t|
-      t.belongs_to :project, null: false, index: true, foreign_key: { on_delete: :cascade }
-      t.integer :job_id, null: false
-      t.integer :file_type, null: false
-      t.integer :size, limit: 8
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-      t.datetime_with_timezone :expire_at
-
-      t.string :file
-
-      t.foreign_key :ci_builds, column: :job_id, on_delete: :cascade
-      t.index [:job_id, :file_type], unique: true
-    end
-  end
-end
diff --git a/db/migrate/20170918072949_add_file_store_job_artifacts.rb b/db/migrate/20170918072949_add_file_store_job_artifacts.rb
deleted file mode 100644
index 3eb355c9305..00000000000
--- a/db/migrate/20170918072949_add_file_store_job_artifacts.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class AddFileStoreJobArtifacts < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-  DOWNTIME = false
-
-  def change
-    add_column(:ci_job_artifacts, :file_store, :integer)
-  end
-end
diff --git a/db/migrate/20170918111708_create_project_custom_attributes.rb b/db/migrate/20170918111708_create_project_custom_attributes.rb
deleted file mode 100644
index bd6064689ff..00000000000
--- a/db/migrate/20170918111708_create_project_custom_attributes.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class CreateProjectCustomAttributes < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :project_custom_attributes do |t|
-      t.timestamps_with_timezone null: false
-      t.references :project, null: false, foreign_key: { on_delete: :cascade }
-      t.string :key, null: false
-      t.string :value, null: false
-
-      t.index [:project_id, :key], unique: true
-      t.index [:key, :value]
-    end
-  end
-end
diff --git a/db/migrate/20170918140927_create_group_custom_attributes.rb b/db/migrate/20170918140927_create_group_custom_attributes.rb
deleted file mode 100644
index 215a0f16b6f..00000000000
--- a/db/migrate/20170918140927_create_group_custom_attributes.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class CreateGroupCustomAttributes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :group_custom_attributes do |t|
-      t.timestamps_with_timezone null: false
-      t.references :group, null: false
-      t.string :key, null: false
-      t.string :value, null: false
-
-      t.index [:group_id, :key], unique: true
-      t.index [:key, :value]
-    end
-
-    add_foreign_key :group_custom_attributes, :namespaces, column: :group_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
-  end
-end
diff --git a/db/migrate/20170918222253_reorganize_deployments_indexes.rb b/db/migrate/20170918222253_reorganize_deployments_indexes.rb
deleted file mode 100644
index 480847ac393..00000000000
--- a/db/migrate/20170918222253_reorganize_deployments_indexes.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ReorganizeDeploymentsIndexes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_index_if_not_exists :deployments, [:environment_id, :iid, :project_id]
-    remove_index_if_exists :deployments, [:project_id, :environment_id, :iid]
-  end
-
-  def down
-    add_index_if_not_exists :deployments, [:project_id, :environment_id, :iid]
-    remove_index_if_exists :deployments, [:environment_id, :iid, :project_id]
-  end
-
-  def add_index_if_not_exists(table, columns)
-    add_concurrent_index(table, columns) unless index_exists?(table, columns)
-  end
-
-  def remove_index_if_exists(table, columns)
-    remove_concurrent_index(table, columns) if index_exists?(table, columns)
-  end
-end
diff --git a/db/migrate/20170918223303_add_deployments_index_for_last_deployment.rb b/db/migrate/20170918223303_add_deployments_index_for_last_deployment.rb
deleted file mode 100644
index 8e165ac647d..00000000000
--- a/db/migrate/20170918223303_add_deployments_index_for_last_deployment.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddDeploymentsIndexForLastDeployment < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  TO_INDEX = [:deployments, %i[environment_id id]].freeze
-
-  def up
-    add_concurrent_index(*TO_INDEX)
-  end
-
-  def down
-    remove_concurrent_index(*TO_INDEX)
-  end
-end
diff --git a/db/migrate/20170919211300_remove_temporary_ci_builds_index.rb b/db/migrate/20170919211300_remove_temporary_ci_builds_index.rb
deleted file mode 100644
index 23c94a809d4..00000000000
--- a/db/migrate/20170919211300_remove_temporary_ci_builds_index.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveTemporaryCiBuildsIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # To use create/remove index concurrently
-  disable_ddl_transaction!
-
-  def up
-    return unless index_exists?(:ci_builds, :id, name: 'index_for_ci_builds_retried_migration')
-
-    remove_concurrent_index(:ci_builds, :id, name: "index_for_ci_builds_retried_migration")
-  end
-
-  def down
-    # this was a temporary index for a migration that was never
-    # present previously so this probably shouldn't be here but it's
-    # easier to test the drop if we have a way to create it.
-    add_concurrent_index("ci_builds", ["id"],
-                         name: "index_for_ci_builds_retried_migration",
-                         where: "(retried IS NULL)",
-                         using: :btree)
-  end
-end
diff --git a/db/migrate/20170921115009_add_project_repository_storage_index.rb b/db/migrate/20170921115009_add_project_repository_storage_index.rb
deleted file mode 100644
index 9e1f5052f28..00000000000
--- a/db/migrate/20170921115009_add_project_repository_storage_index.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class AddProjectRepositoryStorageIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(*index_spec) unless index_exists?(*index_spec)
-  end
-
-  def down
-    remove_concurrent_index(*index_spec) if index_exists?(*index_spec)
-  end
-
-  def index_spec
-    [:projects, :repository_storage]
-  end
-end
diff --git a/db/migrate/20170924094327_create_gcp_clusters.rb b/db/migrate/20170924094327_create_gcp_clusters.rb
deleted file mode 100644
index 43201f75ad7..00000000000
--- a/db/migrate/20170924094327_create_gcp_clusters.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-class CreateGcpClusters < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :gcp_clusters do |t|
-      # Order columns by best align scheme
-      t.references :project, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.references :user, foreign_key: { on_delete: :nullify }
-      t.references :service, foreign_key: { on_delete: :nullify }
-      t.integer :status
-      t.integer :gcp_cluster_size, null: false
-
-      # Timestamps
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      # Enable/disable
-      t.boolean :enabled, default: true
-
-      # General
-      t.text :status_reason
-
-      # k8s integration specific
-      t.string :project_namespace
-
-      # Cluster details
-      t.string :endpoint
-      t.text :ca_cert
-      t.text :encrypted_kubernetes_token
-      t.string :encrypted_kubernetes_token_iv
-      t.string :username
-      t.text :encrypted_password
-      t.string :encrypted_password_iv
-
-      # GKE
-      t.string :gcp_project_id, null: false
-      t.string :gcp_cluster_zone, null: false
-      t.string :gcp_cluster_name, null: false
-      t.string :gcp_machine_type
-      t.string :gcp_operation_id
-      t.text :encrypted_gcp_token
-      t.string :encrypted_gcp_token_iv
-    end
-  end
-end
diff --git a/db/migrate/20170925184228_add_favicon_to_appearances.rb b/db/migrate/20170925184228_add_favicon_to_appearances.rb
deleted file mode 100644
index 1ce750f7e83..00000000000
--- a/db/migrate/20170925184228_add_favicon_to_appearances.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-class AddFaviconToAppearances < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    add_column :appearances, :favicon, :string
-  end
-end
diff --git a/db/migrate/20170927095921_add_ci_builds_index_for_jobscontroller.rb b/db/migrate/20170927095921_add_ci_builds_index_for_jobscontroller.rb
deleted file mode 100644
index 3ee9c959fca..00000000000
--- a/db/migrate/20170927095921_add_ci_builds_index_for_jobscontroller.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddCiBuildsIndexForJobscontroller < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :ci_builds, [:project_id, :id] unless index_exists? :ci_builds, [:project_id, :id]
-    remove_concurrent_index :ci_builds, :project_id if index_exists? :ci_builds, :project_id
-  end
-
-  def down
-    add_concurrent_index :ci_builds, :project_id unless index_exists? :ci_builds, :project_id
-    remove_concurrent_index :ci_builds, [:project_id, :id] if index_exists? :ci_builds, [:project_id, :id]
-  end
-end
diff --git a/db/migrate/20170927122209_add_partial_index_for_labels_template.rb b/db/migrate/20170927122209_add_partial_index_for_labels_template.rb
deleted file mode 100644
index dd79e024df4..00000000000
--- a/db/migrate/20170927122209_add_partial_index_for_labels_template.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddPartialIndexForLabelsTemplate < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-
-  disable_ddl_transaction!
-
-  # Note this is a partial index in Postgres but MySQL will ignore the
-  # partial index clause. By making it an index on "template" this
-  # means the index will still accomplish the same goal of optimizing
-  # a query with "where template = true" on MySQL -- it'll just take
-  # more space. In this case the number of records with template=true
-  # is expected to be very small (small enough to display on a single
-  # web page) so it's ok to filter or sort them without the index
-  # anyways.
-
-  def up
-    add_concurrent_index "labels", ["template"], where: "template"
-  end
-
-  def down
-    remove_concurrent_index "labels", ["template"], where: "template"
-  end
-end
diff --git a/db/migrate/20170927161718_create_gpg_key_subkeys.rb b/db/migrate/20170927161718_create_gpg_key_subkeys.rb
deleted file mode 100644
index 3b5d452ee12..00000000000
--- a/db/migrate/20170927161718_create_gpg_key_subkeys.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class CreateGpgKeySubkeys < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    create_table :gpg_key_subkeys do |t|
-      t.references :gpg_key, null: false, index: true, foreign_key: { on_delete: :cascade }
-
-      t.binary :keyid
-      t.binary :fingerprint
-
-      t.index :keyid, unique: true, length: mysql_compatible_index_length
-      t.index :fingerprint, unique: true, length: mysql_compatible_index_length
-    end
-
-    add_reference :gpg_signatures, :gpg_key_subkey, index: true, foreign_key: { on_delete: :nullify }
-  end
-
-  def down
-    remove_reference(:gpg_signatures, :gpg_key_subkey, index: true, foreign_key: true)
-
-    drop_table :gpg_key_subkeys
-  end
-end
diff --git a/db/migrate/20170928100231_add_composite_index_on_merge_requests_merge_commit_sha.rb b/db/migrate/20170928100231_add_composite_index_on_merge_requests_merge_commit_sha.rb
deleted file mode 100644
index cb16589e8db..00000000000
--- a/db/migrate/20170928100231_add_composite_index_on_merge_requests_merge_commit_sha.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddCompositeIndexOnMergeRequestsMergeCommitSha < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # The default index name is too long for PostgreSQL and would thus be
-  # truncated.
-  INDEX_NAME = 'index_merge_requests_on_tp_id_and_merge_commit_sha_and_id'
-
-  COLUMNS = [:target_project_id, :merge_commit_sha, :id]
-
-  disable_ddl_transaction!
-
-  def up
-    return if index_is_present?
-
-    add_concurrent_index(:merge_requests, COLUMNS, name: INDEX_NAME)
-  end
-
-  def down
-    return unless index_is_present?
-
-    remove_concurrent_index(:merge_requests, COLUMNS, name: INDEX_NAME)
-  end
-
-  def index_is_present?
-    index_exists?(:merge_requests, COLUMNS, name: INDEX_NAME)
-  end
-end
diff --git a/db/migrate/20170928124105_create_fork_networks.rb b/db/migrate/20170928124105_create_fork_networks.rb
deleted file mode 100644
index 01f623117f5..00000000000
--- a/db/migrate/20170928124105_create_fork_networks.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-class CreateForkNetworks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :fork_networks do |t|
-      t.references :root_project,
-                   references: :projects,
-                   index: { unique: true }
-
-      t.string :deleted_root_project_name
-    end
-
-    add_concurrent_foreign_key :fork_networks, :projects,
-                               column: :root_project_id,
-                               on_delete: :nullify
-  end
-
-  def down
-    if foreign_keys_for(:fork_networks, :root_project_id).any?
-      remove_foreign_key :fork_networks, column: :root_project_id
-    end
-
-    drop_table :fork_networks
-  end
-end
diff --git a/db/migrate/20170928133643_create_fork_network_members.rb b/db/migrate/20170928133643_create_fork_network_members.rb
deleted file mode 100644
index e2a6d7b0e8a..00000000000
--- a/db/migrate/20170928133643_create_fork_network_members.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-class CreateForkNetworkMembers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    create_table :fork_network_members do |t|
-      t.references :fork_network, null: false, index: true, foreign_key: { on_delete: :cascade }
-      t.references :project, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-      t.references :forked_from_project, references: :projects
-    end
-
-    add_concurrent_foreign_key :fork_network_members, :projects,
-                               column: :forked_from_project_id,
-                               on_delete: :nullify
-  end
-
-  def down
-    if foreign_keys_for(:fork_network_members, :forked_from_project_id).any?
-      remove_foreign_key :fork_network_members, column: :forked_from_project_id
-    end
-
-    drop_table :fork_network_members
-  end
-end
diff --git a/db/migrate/20170929080234_add_failure_reason_to_pipelines.rb b/db/migrate/20170929080234_add_failure_reason_to_pipelines.rb
deleted file mode 100644
index e000ee27eef..00000000000
--- a/db/migrate/20170929080234_add_failure_reason_to_pipelines.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddFailureReasonToPipelines < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :ci_pipelines, :failure_reason, :integer
-  end
-end
diff --git a/db/migrate/20170929131201_populate_fork_networks.rb b/db/migrate/20170929131201_populate_fork_networks.rb
deleted file mode 100644
index ba4f8ef2531..00000000000
--- a/db/migrate/20170929131201_populate_fork_networks.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PopulateForkNetworks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    say 'Fork networks will be populated in 20171205190711 - RescheduleForkNetworkCreationCaller'
-  end
-
-  def down
-    # nothing
-  end
-end
diff --git a/db/migrate/20171004121444_make_sure_fast_forward_option_exists.rb b/db/migrate/20171004121444_make_sure_fast_forward_option_exists.rb
deleted file mode 100644
index 9b417de1793..00000000000
--- a/db/migrate/20171004121444_make_sure_fast_forward_option_exists.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-# rubocop:disable all
-class MakeSureFastForwardOptionExists < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # We had to fix the migration db/migrate/20150827121444_add_fast_forward_option_to_project.rb
-    # And this is why it's possible that someone has ran the migrations but does
-    # not have the merge_requests_ff_only_enabled column. This migration makes sure it will
-    # be added
-    unless column_exists?(:projects, :merge_requests_ff_only_enabled)
-      add_column_with_default(:projects, :merge_requests_ff_only_enabled, :boolean, default: false)
-    end
-  end
-
-  def down
-    if column_exists?(:projects, :merge_requests_ff_only_enabled)
-      remove_column(:projects, :merge_requests_ff_only_enabled)
-    end
-  end
-end
diff --git a/db/migrate/20171006090001_create_ci_build_trace_sections.rb b/db/migrate/20171006090001_create_ci_build_trace_sections.rb
deleted file mode 100644
index a2eca0832f2..00000000000
--- a/db/migrate/20171006090001_create_ci_build_trace_sections.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class CreateCiBuildTraceSections < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :ci_build_trace_sections do |t|
-      t.references :project, null: false, index: true, foreign_key: { on_delete: :cascade }
-      t.datetime_with_timezone :date_start, null: false
-      t.datetime_with_timezone :date_end, null: false
-      t.integer :byte_start, limit: 8, null: false
-      t.integer :byte_end, limit: 8, null: false
-      t.integer :build_id, null: false
-      t.integer :section_name_id, null: false
-    end
-
-    add_index :ci_build_trace_sections, [:build_id, :section_name_id], unique: true
-  end
-end
diff --git a/db/migrate/20171006090010_add_build_foreign_key_to_ci_build_trace_sections.rb b/db/migrate/20171006090010_add_build_foreign_key_to_ci_build_trace_sections.rb
deleted file mode 100644
index 7b17763ac84..00000000000
--- a/db/migrate/20171006090010_add_build_foreign_key_to_ci_build_trace_sections.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddBuildForeignKeyToCiBuildTraceSections < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:ci_build_trace_sections, :ci_builds, column: :build_id)
-  end
-
-  def down
-    remove_foreign_key(:ci_build_trace_sections, column: :build_id)
-  end
-end
diff --git a/db/migrate/20171006090100_create_ci_build_trace_section_names.rb b/db/migrate/20171006090100_create_ci_build_trace_section_names.rb
deleted file mode 100644
index 00a38fa59c2..00000000000
--- a/db/migrate/20171006090100_create_ci_build_trace_section_names.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class CreateCiBuildTraceSectionNames < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    create_table :ci_build_trace_section_names do |t|
-      t.references :project, null: false, foreign_key: { on_delete: :cascade }
-      t.string :name, null: false
-    end
-
-    add_index :ci_build_trace_section_names, [:project_id, :name], unique: true
-  end
-
-  def down
-    remove_foreign_key :ci_build_trace_section_names, column: :project_id
-    drop_table :ci_build_trace_section_names
-  end
-end
diff --git a/db/migrate/20171006091000_add_name_foreign_key_to_ci_build_trace_sections.rb b/db/migrate/20171006091000_add_name_foreign_key_to_ci_build_trace_sections.rb
deleted file mode 100644
index 1342ff013b7..00000000000
--- a/db/migrate/20171006091000_add_name_foreign_key_to_ci_build_trace_sections.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddNameForeignKeyToCiBuildTraceSections < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:ci_build_trace_sections, :ci_build_trace_section_names, column: :section_name_id)
-  end
-
-  def down
-    remove_foreign_key(:ci_build_trace_sections, column: :section_name_id)
-  end
-end
diff --git a/db/migrate/20171006220837_add_global_rate_limits_to_application_settings.rb b/db/migrate/20171006220837_add_global_rate_limits_to_application_settings.rb
deleted file mode 100644
index 96d76069b35..00000000000
--- a/db/migrate/20171006220837_add_global_rate_limits_to_application_settings.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddGlobalRateLimitsToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings, :throttle_unauthenticated_enabled, :boolean, default: false, allow_null: false
-    add_column_with_default :application_settings, :throttle_unauthenticated_requests_per_period, :integer, default: 3600, allow_null: false
-    add_column_with_default :application_settings, :throttle_unauthenticated_period_in_seconds, :integer, default: 3600, allow_null: false
-
-    add_column_with_default :application_settings, :throttle_authenticated_api_enabled, :boolean, default: false, allow_null: false
-    add_column_with_default :application_settings, :throttle_authenticated_api_requests_per_period, :integer, default: 7200, allow_null: false
-    add_column_with_default :application_settings, :throttle_authenticated_api_period_in_seconds, :integer, default: 3600, allow_null: false
-
-    add_column_with_default :application_settings, :throttle_authenticated_web_enabled, :boolean, default: false, allow_null: false
-    add_column_with_default :application_settings, :throttle_authenticated_web_requests_per_period, :integer, default: 7200, allow_null: false
-    add_column_with_default :application_settings, :throttle_authenticated_web_period_in_seconds, :integer, default: 3600, allow_null: false
-  end
-
-  def down
-    remove_column :application_settings, :throttle_authenticated_web_period_in_seconds
-    remove_column :application_settings, :throttle_authenticated_web_requests_per_period
-    remove_column :application_settings, :throttle_authenticated_web_enabled
-
-    remove_column :application_settings, :throttle_authenticated_api_period_in_seconds
-    remove_column :application_settings, :throttle_authenticated_api_requests_per_period
-    remove_column :application_settings, :throttle_authenticated_api_enabled
-
-    remove_column :application_settings, :throttle_unauthenticated_period_in_seconds
-    remove_column :application_settings, :throttle_unauthenticated_requests_per_period
-    remove_column :application_settings, :throttle_unauthenticated_enabled
-  end
-end
diff --git a/db/migrate/20171012101043_add_circuit_breaker_properties_to_application_settings.rb b/db/migrate/20171012101043_add_circuit_breaker_properties_to_application_settings.rb
deleted file mode 100644
index 91bba07b4d7..00000000000
--- a/db/migrate/20171012101043_add_circuit_breaker_properties_to_application_settings.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddCircuitBreakerPropertiesToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings,
-               :circuitbreaker_failure_count_threshold,
-               :integer,
-               default: 160
-    add_column :application_settings,
-               :circuitbreaker_failure_wait_time,
-               :integer,
-               default: 30
-    add_column :application_settings,
-               :circuitbreaker_failure_reset_time,
-               :integer,
-               default: 1800
-    add_column :application_settings,
-               :circuitbreaker_storage_timeout,
-               :integer,
-               default: 30
-  end
-end
diff --git a/db/migrate/20171012125712_migrate_user_authentication_token_to_personal_access_token.rb b/db/migrate/20171012125712_migrate_user_authentication_token_to_personal_access_token.rb
deleted file mode 100644
index 305c12e31f8..00000000000
--- a/db/migrate/20171012125712_migrate_user_authentication_token_to_personal_access_token.rb
+++ /dev/null
@@ -1,78 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateUserAuthenticationTokenToPersonalAccessToken < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # disable_ddl_transaction!
-
-  TOKEN_NAME = 'Private Token'.freeze
-
-  def up
-    execute <<~SQL
-      INSERT INTO personal_access_tokens (user_id, token, name, created_at, updated_at, scopes)
-      SELECT id, authentication_token, '#{TOKEN_NAME}', NOW(), NOW(), '#{%w[api].to_yaml}'
-      FROM users
-      WHERE authentication_token IS NOT NULL
-      AND admin = FALSE
-      AND NOT EXISTS (
-        SELECT true
-        FROM personal_access_tokens
-        WHERE user_id = users.id
-        AND token = users.authentication_token
-      )
-    SQL
-
-    # Admins also need the `sudo` scope
-    execute <<~SQL
-      INSERT INTO personal_access_tokens (user_id, token, name, created_at, updated_at, scopes)
-      SELECT id, authentication_token, '#{TOKEN_NAME}', NOW(), NOW(), '#{%w[api sudo].to_yaml}'
-      FROM users
-      WHERE authentication_token IS NOT NULL
-      AND admin = TRUE
-      AND NOT EXISTS (
-        SELECT true
-        FROM personal_access_tokens
-        WHERE user_id = users.id
-        AND token = users.authentication_token
-      )
-    SQL
-  end
-
-  def down
-    if Gitlab::Database.postgresql?
-      execute <<~SQL
-        UPDATE users
-        SET authentication_token = pats.token
-        FROM (
-          SELECT user_id, token
-          FROM personal_access_tokens
-          WHERE name = '#{TOKEN_NAME}'
-        ) AS pats
-        WHERE id = pats.user_id
-      SQL
-    else
-      execute <<~SQL
-        UPDATE users
-        INNER JOIN personal_access_tokens AS pats
-        ON users.id = pats.user_id
-        SET authentication_token = pats.token
-        WHERE pats.name = '#{TOKEN_NAME}'
-      SQL
-    end
-
-    execute <<~SQL
-      DELETE FROM personal_access_tokens
-      WHERE name = '#{TOKEN_NAME}'
-      AND EXISTS (
-        SELECT true
-        FROM users
-        WHERE id = personal_access_tokens.user_id
-        AND authentication_token = personal_access_tokens.token
-      )
-    SQL
-  end
-end
diff --git a/db/migrate/20171013094327_create_new_clusters_architectures.rb b/db/migrate/20171013094327_create_new_clusters_architectures.rb
deleted file mode 100644
index 98f91e6130f..00000000000
--- a/db/migrate/20171013094327_create_new_clusters_architectures.rb
+++ /dev/null
@@ -1,68 +0,0 @@
-class CreateNewClustersArchitectures < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    create_table :clusters do |t|
-      t.references :user, index: true, foreign_key: { on_delete: :nullify }
-
-      t.integer :provider_type
-      t.integer :platform_type
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      t.boolean :enabled, index: true, default: true
-
-      t.string :name, null: false # If manual, read-write. If gcp, read-only.
-    end
-
-    create_table :cluster_projects do |t|
-      t.references :project, null: false, index: true, foreign_key: { on_delete: :cascade }
-      t.references :cluster, null: false, index: true, foreign_key: { on_delete: :cascade }
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-    end
-
-    create_table :cluster_platforms_kubernetes do |t|
-      t.references :cluster, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      t.text :api_url
-      t.text :ca_cert
-
-      t.string :namespace
-
-      t.string :username
-      t.text :encrypted_password
-      t.string :encrypted_password_iv
-
-      t.text :encrypted_token
-      t.string :encrypted_token_iv
-    end
-
-    create_table :cluster_providers_gcp do |t|
-      t.references :cluster, null: false, index: { unique: true }, foreign_key: { on_delete: :cascade }
-
-      t.integer :status
-      t.integer :num_nodes, null: false
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      t.text :status_reason
-
-      t.string :gcp_project_id, null: false
-      t.string :zone, null: false
-      t.string :machine_type
-      t.string :operation_id
-
-      t.string :endpoint
-
-      t.text :encrypted_access_token
-      t.string :encrypted_access_token_iv
-    end
-  end
-end
diff --git a/db/migrate/20171017145932_add_new_circuitbreaker_settings_to_application_settings.rb b/db/migrate/20171017145932_add_new_circuitbreaker_settings_to_application_settings.rb
deleted file mode 100644
index 4a0cadea364..00000000000
--- a/db/migrate/20171017145932_add_new_circuitbreaker_settings_to_application_settings.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class AddNewCircuitbreakerSettingsToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings,
-               :circuitbreaker_access_retries,
-               :integer,
-               default: 3
-    add_column :application_settings,
-               :circuitbreaker_backoff_threshold,
-               :integer,
-               default: 80
-  end
-end
diff --git a/db/migrate/20171019141859_fix_dev_timezone_schema.rb b/db/migrate/20171019141859_fix_dev_timezone_schema.rb
deleted file mode 100644
index 68c8b528e17..00000000000
--- a/db/migrate/20171019141859_fix_dev_timezone_schema.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-class FixDevTimezoneSchema < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # The this migrations tries to help solve unwanted changes to `schema.rb`
-  # while developing GitLab. Installations created before we started using
-  # `datetime_with_timezone` are likely to face this problem. Updating those
-  # columns to the new type should help fix this.
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  TIMEZONE_TABLES = %i(appearances ci_group_variables ci_pipeline_schedule_variables events gpg_keys gpg_signatures project_auto_devops)
-
-  def up
-    return unless Rails.env.development? || Rails.env.test?
-
-    TIMEZONE_TABLES.each do |table|
-      change_column table, :created_at, :datetime_with_timezone
-      change_column table, :updated_at, :datetime_with_timezone
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb b/db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb
deleted file mode 100644
index 1af0cf70958..00000000000
--- a/db/migrate/20171025110159_add_latest_merge_request_diff_id_to_merge_requests.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-class AddLatestMergeRequestDiffIdToMergeRequests < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :merge_requests, :latest_merge_request_diff_id, :integer
-    add_concurrent_index :merge_requests, :latest_merge_request_diff_id
-
-    add_concurrent_foreign_key :merge_requests, :merge_request_diffs,
-                               column: :latest_merge_request_diff_id,
-                               on_delete: :nullify
-  end
-
-  def down
-    remove_foreign_key :merge_requests, column: :latest_merge_request_diff_id
-
-    if index_exists?(:merge_requests, :latest_merge_request_diff_id)
-      remove_concurrent_index :merge_requests, :latest_merge_request_diff_id
-    end
-
-    remove_column :merge_requests, :latest_merge_request_diff_id
-  end
-end
diff --git a/db/migrate/20171031100710_create_clusters_kubernetes_helm_apps.rb b/db/migrate/20171031100710_create_clusters_kubernetes_helm_apps.rb
deleted file mode 100644
index 0af05f5c94a..00000000000
--- a/db/migrate/20171031100710_create_clusters_kubernetes_helm_apps.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class CreateClustersKubernetesHelmApps < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :clusters_applications_helm do |t|
-      t.references :cluster, null: false, unique: true, foreign_key: { on_delete: :cascade }
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      t.integer :status, null: false
-      t.string :version, null: false
-      t.text :status_reason
-    end
-  end
-end
diff --git a/db/migrate/20171101130535_add_gitaly_timeout_properties_to_application_settings.rb b/db/migrate/20171101130535_add_gitaly_timeout_properties_to_application_settings.rb
deleted file mode 100644
index 6d60fdc6132..00000000000
--- a/db/migrate/20171101130535_add_gitaly_timeout_properties_to_application_settings.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddGitalyTimeoutPropertiesToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings,
-                            :gitaly_timeout_default,
-                            :integer,
-                            default: 55
-    add_column_with_default :application_settings,
-                            :gitaly_timeout_medium,
-                            :integer,
-                            default: 30
-    add_column_with_default :application_settings,
-                            :gitaly_timeout_fast,
-                            :integer,
-                            default: 10
-  end
-
-  def down
-    remove_column :application_settings, :gitaly_timeout_default
-    remove_column :application_settings, :gitaly_timeout_medium
-    remove_column :application_settings, :gitaly_timeout_fast
-  end
-end
diff --git a/db/migrate/20171103000000_set_uploads_path_size_for_mysql.rb b/db/migrate/20171103000000_set_uploads_path_size_for_mysql.rb
deleted file mode 100644
index 93cec87f999..00000000000
--- a/db/migrate/20171103000000_set_uploads_path_size_for_mysql.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class SetUploadsPathSizeForMysql < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    # We need at least 297 at the moment. For more detail on that number, see:
-    # https://gitlab.com/gitlab-org/gitlab-ce/issues/40168#what-is-the-expected-correct-behavior
-    #
-    # Rails + PostgreSQL `string` is equivalent to a `text` field, but
-    # Rails + MySQL `string` is `varchar(255)` by default. Also, note that we
-    # have an upper limit because with a unique index, MySQL has a max key
-    # length of 3072 bytes which seems to correspond to `varchar(1024)`.
-    change_column :uploads, :path, :string, limit: 511
-  end
-
-  def down
-    # It was unspecified, which is varchar(255) by default in Rails for MySQL.
-    change_column :uploads, :path, :string
-  end
-end
diff --git a/db/migrate/20171106101200_create_clusters_kubernetes_ingress_apps.rb b/db/migrate/20171106101200_create_clusters_kubernetes_ingress_apps.rb
deleted file mode 100644
index 770cb94ee18..00000000000
--- a/db/migrate/20171106101200_create_clusters_kubernetes_ingress_apps.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class CreateClustersKubernetesIngressApps < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :clusters_applications_ingress do |t|
-      t.references :cluster, null: false, unique: true, foreign_key: { on_delete: :cascade }
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      t.integer :status, null: false
-      t.integer :ingress_type, null: false
-
-      t.string :version, null: false
-      t.string :cluster_ip
-      t.text :status_reason
-    end
-  end
-end
diff --git a/db/migrate/20171106132212_issues_confidential_not_null.rb b/db/migrate/20171106132212_issues_confidential_not_null.rb
deleted file mode 100644
index 444a38c2dc5..00000000000
--- a/db/migrate/20171106132212_issues_confidential_not_null.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class IssuesConfidentialNotNull < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  class Issue < ActiveRecord::Base
-    self.table_name = 'issues'
-  end
-
-  def up
-    Issue.where('confidential IS NULL').update_all(confidential: false)
-
-    change_column_null :issues, :confidential, false
-  end
-
-  def down
-    # There's no way / point to revert this.
-  end
-end
diff --git a/db/migrate/20171106133143_rename_application_settings_password_authentication_enabled_to_password_authentication_enabled_for_web.rb b/db/migrate/20171106133143_rename_application_settings_password_authentication_enabled_to_password_authentication_enabled_for_web.rb
deleted file mode 100644
index 58762a4f852..00000000000
--- a/db/migrate/20171106133143_rename_application_settings_password_authentication_enabled_to_password_authentication_enabled_for_web.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class RenameApplicationSettingsPasswordAuthenticationEnabledToPasswordAuthenticationEnabledForWeb < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    rename_column_concurrently :application_settings, :password_authentication_enabled, :password_authentication_enabled_for_web
-  end
-
-  def down
-    cleanup_concurrent_column_rename :application_settings, :password_authentication_enabled_for_web, :password_authentication_enabled
-  end
-end
diff --git a/db/migrate/20171106133911_add_password_authentication_enabled_for_git_to_application_settings.rb b/db/migrate/20171106133911_add_password_authentication_enabled_for_git_to_application_settings.rb
deleted file mode 100644
index 1f96a0426a1..00000000000
--- a/db/migrate/20171106133911_add_password_authentication_enabled_for_git_to_application_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddPasswordAuthenticationEnabledForGitToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :application_settings, :password_authentication_enabled_for_git, :boolean, default: true, null: false
-  end
-end
diff --git a/db/migrate/20171106135924_issues_milestone_id_foreign_key.rb b/db/migrate/20171106135924_issues_milestone_id_foreign_key.rb
deleted file mode 100644
index 1de7d5e768e..00000000000
--- a/db/migrate/20171106135924_issues_milestone_id_foreign_key.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class IssuesMilestoneIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'issues'
-
-    def self.with_orphaned_milestones
-      where('NOT EXISTS (SELECT true FROM milestones WHERE milestones.id = issues.milestone_id)')
-        .where('milestone_id IS NOT NULL')
-    end
-  end
-
-  def up
-    Issue.with_orphaned_milestones.each_batch(of: 100) do |batch|
-      batch.update_all(milestone_id: nil)
-    end
-
-    add_concurrent_foreign_key(
-      :issues,
-      :milestones,
-      column: :milestone_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:issues, column: :milestone_id)
-  end
-end
diff --git a/db/migrate/20171106150657_issues_updated_by_id_foreign_key.rb b/db/migrate/20171106150657_issues_updated_by_id_foreign_key.rb
deleted file mode 100644
index b2992b1ff5d..00000000000
--- a/db/migrate/20171106150657_issues_updated_by_id_foreign_key.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class IssuesUpdatedByIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'issues'
-
-    def self.with_orphaned_updaters
-      where('NOT EXISTS (SELECT true FROM users WHERE users.id = issues.updated_by_id)')
-        .where('updated_by_id IS NOT NULL')
-    end
-  end
-
-  def up
-    Issue.with_orphaned_updaters.each_batch(of: 100) do |batch|
-      batch.update_all(updated_by_id: nil)
-    end
-
-    # This index is only used for foreign keys, and those in turn will always
-    # specify a value. As such we can add a WHERE condition to make the index
-    # smaller.
-    add_concurrent_index(:issues, :updated_by_id, where: 'updated_by_id IS NOT NULL')
-
-    add_concurrent_foreign_key(
-      :issues,
-      :users,
-      column: :updated_by_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:issues, column: :updated_by_id)
-    remove_concurrent_index(:issues, :updated_by_id)
-  end
-end
diff --git a/db/migrate/20171106151218_issues_moved_to_id_foreign_key.rb b/db/migrate/20171106151218_issues_moved_to_id_foreign_key.rb
deleted file mode 100644
index 66bfb5718dc..00000000000
--- a/db/migrate/20171106151218_issues_moved_to_id_foreign_key.rb
+++ /dev/null
@@ -1,56 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class IssuesMovedToIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'issues'
-
-    def self.with_orphaned_moved_to_issues
-      if Gitlab::Database.postgresql?
-        # Be careful to use a second table here for comparison otherwise we'll null
-        # out all rows that don't have id == moved.to_id!
-        where('NOT EXISTS (SELECT true FROM issues B WHERE issues.moved_to_id = B.id)')
-          .where('moved_to_id IS NOT NULL')
-      else
-        # MySQL doesn't allow modification of the same table in a subquery,
-        # and using a temporary table isn't automatically guaranteed to work
-        # due to the MySQL query optimizer. See
-        # https://dev.mysql.com/doc/refman/5.7/en/update.html for more
-        # details.
-        joins('LEFT JOIN issues AS b ON issues.moved_to_id = b.id')
-          .where('issues.moved_to_id IS NOT NULL AND b.id IS NULL')
-      end
-    end
-  end
-
-  def up
-    Issue.with_orphaned_moved_to_issues.each_batch(of: 100) do |batch|
-      batch.update_all(moved_to_id: nil)
-    end
-
-    add_concurrent_foreign_key(
-      :issues,
-      :issues,
-      column: :moved_to_id,
-      on_delete: :nullify
-    )
-
-    # We're using a partial index here so we only index the data we actually
-    # care about.
-    add_concurrent_index(:issues, :moved_to_id, where: 'moved_to_id IS NOT NULL')
-  end
-
-  def down
-    remove_foreign_key_without_error(:issues, column: :moved_to_id)
-    remove_concurrent_index(:issues, :moved_to_id)
-  end
-end
diff --git a/db/migrate/20171106155656_turn_issues_due_date_index_to_partial_index.rb b/db/migrate/20171106155656_turn_issues_due_date_index_to_partial_index.rb
deleted file mode 100644
index 58392de5e6b..00000000000
--- a/db/migrate/20171106155656_turn_issues_due_date_index_to_partial_index.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class TurnIssuesDueDateIndexToPartialIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  NEW_INDEX_NAME = 'idx_issues_on_project_id_and_due_date_and_id_and_state_partial'
-  OLD_INDEX_NAME = 'index_issues_on_project_id_and_due_date_and_id_and_state'
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(
-      :issues,
-      [:project_id, :due_date, :id, :state],
-      where: 'due_date IS NOT NULL',
-      name: NEW_INDEX_NAME
-    )
-
-    remove_concurrent_index_by_name(:issues, OLD_INDEX_NAME)
-  end
-
-  def down
-    add_concurrent_index(
-      :issues,
-      [:project_id, :due_date, :id, :state],
-      name: OLD_INDEX_NAME
-    )
-
-    remove_concurrent_index_by_name(:issues, NEW_INDEX_NAME)
-  end
-end
diff --git a/db/migrate/20171106171453_add_timezone_to_issues_closed_at.rb b/db/migrate/20171106171453_add_timezone_to_issues_closed_at.rb
deleted file mode 100644
index c6edc1af6cb..00000000000
--- a/db/migrate/20171106171453_add_timezone_to_issues_closed_at.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddTimezoneToIssuesClosedAt < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # rubocop:disable Migration/UpdateLargeTable
-    change_column_type_concurrently(:issues, :closed_at, :datetime_with_timezone)
-  end
-
-  def down
-    cleanup_concurrent_column_type_change(:issues, :closed_at)
-  end
-end
diff --git a/db/migrate/20171114150259_merge_requests_author_id_foreign_key.rb b/db/migrate/20171114150259_merge_requests_author_id_foreign_key.rb
deleted file mode 100644
index 4ebb6fad059..00000000000
--- a/db/migrate/20171114150259_merge_requests_author_id_foreign_key.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsAuthorIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_authors
-      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.author_id = users.id)')
-        .where('author_id IS NOT NULL')
-    end
-  end
-
-  def up
-    # Replacing the ghost user ID logic would be too complex, hence we don't
-    # redefine the User model here.
-    ghost_id = User.select(:id).ghost.id
-
-    MergeRequest.with_orphaned_authors.each_batch(of: 100) do |batch|
-      batch.update_all(author_id: ghost_id)
-    end
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :users,
-      column: :author_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key(:merge_requests, column: :author_id)
-  end
-end
diff --git a/db/migrate/20171114160005_merge_requests_assignee_id_foreign_key.rb b/db/migrate/20171114160005_merge_requests_assignee_id_foreign_key.rb
deleted file mode 100644
index 73c177c44f9..00000000000
--- a/db/migrate/20171114160005_merge_requests_assignee_id_foreign_key.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsAssigneeIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_assignees
-      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.assignee_id = users.id)')
-        .where('assignee_id IS NOT NULL')
-    end
-  end
-
-  def up
-    MergeRequest.with_orphaned_assignees.each_batch(of: 100) do |batch|
-      batch.update_all(assignee_id: nil)
-    end
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :users,
-      column: :assignee_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key(:merge_requests, column: :assignee_id)
-  end
-end
diff --git a/db/migrate/20171114160904_merge_requests_updated_by_id_foreign_key.rb b/db/migrate/20171114160904_merge_requests_updated_by_id_foreign_key.rb
deleted file mode 100644
index 69f9c181c10..00000000000
--- a/db/migrate/20171114160904_merge_requests_updated_by_id_foreign_key.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsUpdatedByIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_updaters
-      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.updated_by_id = users.id)')
-        .where('updated_by_id IS NOT NULL')
-    end
-  end
-
-  def up
-    MergeRequest.with_orphaned_updaters.each_batch(of: 100) do |batch|
-      batch.update_all(updated_by_id: nil)
-    end
-
-    add_concurrent_index(
-      :merge_requests,
-      :updated_by_id,
-      where: 'updated_by_id IS NOT NULL'
-    )
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :users,
-      column: :updated_by_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:merge_requests, column: :updated_by_id)
-    remove_concurrent_index(:merge_requests, :updated_by_id)
-  end
-end
diff --git a/db/migrate/20171114161720_merge_requests_merge_user_id_foreign_key.rb b/db/migrate/20171114161720_merge_requests_merge_user_id_foreign_key.rb
deleted file mode 100644
index ccd275d5bb4..00000000000
--- a/db/migrate/20171114161720_merge_requests_merge_user_id_foreign_key.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsMergeUserIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_mergers
-      where('NOT EXISTS (SELECT true FROM users WHERE merge_requests.merge_user_id = users.id)')
-        .where('merge_user_id IS NOT NULL')
-    end
-  end
-
-  def up
-    MergeRequest.with_orphaned_mergers.each_batch(of: 100) do |batch|
-      batch.update_all(merge_user_id: nil)
-    end
-
-    add_concurrent_index(
-      :merge_requests,
-      :merge_user_id,
-      where: 'merge_user_id IS NOT NULL'
-    )
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :users,
-      column: :merge_user_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:merge_requests, column: :merge_user_id)
-    remove_concurrent_index(:merge_requests, :merge_user_id)
-  end
-end
diff --git a/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb b/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb
deleted file mode 100644
index 250928a6551..00000000000
--- a/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsSourceProjectIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_source_projects
-      where('NOT EXISTS (SELECT true FROM projects WHERE merge_requests.source_project_id = projects.id)')
-        .where('source_project_id IS NOT NULL')
-    end
-  end
-
-  def up
-    # We need to allow NULL values so we can nullify the column when the source
-    # project is removed. We _don't_ want to remove the merge request, instead
-    # the application will keep them but close them.
-    change_column_null(:merge_requests, :source_project_id, true)
-
-    MergeRequest.with_orphaned_source_projects.each_batch(of: 100) do |batch|
-      batch.update_all(source_project_id: nil)
-    end
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :projects,
-      column: :source_project_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:merge_requests, column: :source_project_id)
-    change_column_null(:merge_requests, :source_project_id, false)
-  end
-end
diff --git a/db/migrate/20171114162227_merge_requests_milestone_id_foreign_key.rb b/db/migrate/20171114162227_merge_requests_milestone_id_foreign_key.rb
deleted file mode 100644
index cafe0ce0853..00000000000
--- a/db/migrate/20171114162227_merge_requests_milestone_id_foreign_key.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsMilestoneIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_milestones
-      where('NOT EXISTS (SELECT true FROM milestones WHERE merge_requests.milestone_id = milestones.id)')
-        .where('milestone_id IS NOT NULL')
-    end
-  end
-
-  def up
-    MergeRequest.with_orphaned_milestones.each_batch(of: 100) do |batch|
-      batch.update_all(milestone_id: nil)
-    end
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :milestones,
-      column: :milestone_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:merge_requests, column: :milestone_id)
-  end
-end
diff --git a/db/migrate/20171115164540_populate_merge_requests_latest_merge_request_diff_id_take_two.rb b/db/migrate/20171115164540_populate_merge_requests_latest_merge_request_diff_id_take_two.rb
deleted file mode 100644
index 935092ce46a..00000000000
--- a/db/migrate/20171115164540_populate_merge_requests_latest_merge_request_diff_id_take_two.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# This is identical to the stolen background migration, which already has specs.
-class PopulateMergeRequestsLatestMergeRequestDiffIdTakeTwo < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BATCH_SIZE = 1_000
-
-  class MergeRequest < ActiveRecord::Base
-    self.table_name = 'merge_requests'
-
-    include ::EachBatch
-  end
-
-  disable_ddl_transaction!
-
-  def up
-    Gitlab::BackgroundMigration.steal('PopulateMergeRequestsLatestMergeRequestDiffId')
-
-    update = '
-      latest_merge_request_diff_id = (
-        SELECT MAX(id)
-        FROM merge_request_diffs
-        WHERE merge_requests.id = merge_request_diffs.merge_request_id
-      )'.squish
-
-    MergeRequest.where(latest_merge_request_diff_id: nil).each_batch(of: BATCH_SIZE) do |relation|
-      relation.update_all(update)
-    end
-  end
-end
diff --git a/db/migrate/20171116135628_add_environment_scope_to_clusters.rb b/db/migrate/20171116135628_add_environment_scope_to_clusters.rb
deleted file mode 100644
index 39bb8759cc0..00000000000
--- a/db/migrate/20171116135628_add_environment_scope_to_clusters.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddEnvironmentScopeToClusters < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default(:clusters, :environment_scope, :string, default: '*')
-  end
-
-  def down
-    remove_column(:clusters, :environment_scope)
-  end
-end
diff --git a/db/migrate/20171121144800_ci_pipelines_index_on_project_id_ref_status_id.rb b/db/migrate/20171121144800_ci_pipelines_index_on_project_id_ref_status_id.rb
deleted file mode 100644
index a1dcfc70650..00000000000
--- a/db/migrate/20171121144800_ci_pipelines_index_on_project_id_ref_status_id.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CiPipelinesIndexOnProjectIdRefStatusId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  TABLE = :ci_pipelines
-  OLD_COLUMNS = %i[project_id ref status].freeze
-  NEW_COLUMNS = %i[project_id ref status id].freeze
-
-  def up
-    unless index_exists?(TABLE, NEW_COLUMNS)
-      add_concurrent_index(TABLE, NEW_COLUMNS)
-    end
-
-    if index_exists?(TABLE, OLD_COLUMNS)
-      remove_concurrent_index(TABLE, OLD_COLUMNS)
-    end
-  end
-
-  def down
-    unless index_exists?(TABLE, OLD_COLUMNS)
-      add_concurrent_index(TABLE, OLD_COLUMNS)
-    end
-
-    if index_exists?(TABLE, NEW_COLUMNS)
-      remove_concurrent_index(TABLE, NEW_COLUMNS)
-    end
-  end
-end
diff --git a/db/migrate/20171122131600_add_new_project_guidelines_to_appearances.rb b/db/migrate/20171122131600_add_new_project_guidelines_to_appearances.rb
deleted file mode 100644
index cbcbb5d988a..00000000000
--- a/db/migrate/20171122131600_add_new_project_guidelines_to_appearances.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class AddNewProjectGuidelinesToAppearances < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    # Clears the current Appearance cache otherwise it breaks since
-    # new_project_guidelines_html would be missing. See
-    # https://gitlab.com/gitlab-org/gitlab-ce/issues/41041
-    # We're not using Appearance#flush_redis_cache on purpose here.
-    Rails.cache.delete('current_appearance')
-
-    change_table :appearances do |t|
-      t.text :new_project_guidelines
-      t.text :new_project_guidelines_html
-    end
-  end
-end
diff --git a/db/migrate/20171123094802_add_circuitbreaker_check_interval_to_application_settings.rb b/db/migrate/20171123094802_add_circuitbreaker_check_interval_to_application_settings.rb
deleted file mode 100644
index 94360c64926..00000000000
--- a/db/migrate/20171123094802_add_circuitbreaker_check_interval_to_application_settings.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class AddCircuitbreakerCheckIntervalToApplicationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings,
-                            :circuitbreaker_check_interval,
-                            :integer,
-                            default: 1
-  end
-
-  def down
-    remove_column :application_settings,
-                  :circuitbreaker_check_interval
-  end
-end
diff --git a/db/migrate/20171124125042_add_default_values_to_merge_request_states.rb b/db/migrate/20171124125042_add_default_values_to_merge_request_states.rb
deleted file mode 100644
index d0d06863777..00000000000
--- a/db/migrate/20171124125042_add_default_values_to_merge_request_states.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddDefaultValuesToMergeRequestStates < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    change_column_default :merge_requests, :state, :opened
-    change_column_default :merge_requests, :merge_status, :unchecked
-  end
-
-  def down
-    change_column_default :merge_requests, :state, nil
-    change_column_default :merge_requests, :merge_status, nil
-  end
-end
diff --git a/db/migrate/20171124125748_populate_missing_merge_request_statuses.rb b/db/migrate/20171124125748_populate_missing_merge_request_statuses.rb
deleted file mode 100644
index 67444f36e24..00000000000
--- a/db/migrate/20171124125748_populate_missing_merge_request_statuses.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PopulateMissingMergeRequestStatuses < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-  end
-
-  def up
-    say 'Populating missing merge_requests.state values'
-
-    # GitLab.com has no rows where "state" is NULL, and technically this should
-    # never happen. However it doesn't hurt to be 100% certain.
-    MergeRequest.where(state: nil).each_batch do |batch|
-      batch.update_all(state: 'opened')
-    end
-
-    say 'Populating missing merge_requests.merge_status values. ' \
-      'This will take a few minutes...'
-
-    # GitLab.com has 66 880 rows where "merge_status" is NULL, dating back all
-    # the way to 2011.
-    MergeRequest.where(merge_status: nil).each_batch(of: 10_000) do |batch|
-      batch.update_all(merge_status: 'unchecked')
-
-      # We want to give PostgreSQL some time to vacuum any dead tuples. In
-      # production we see it takes roughly 1 minute for a vacuuming run to clear
-      # out 10-20k dead tuples, so we'll wait for 90 seconds between every
-      # batch.
-      sleep(90) if sleep?
-    end
-  end
-
-  def down
-    # Reverting this makes no sense.
-  end
-
-  def sleep?
-    Rails.env.staging? || Rails.env.production?
-  end
-end
diff --git a/db/migrate/20171124132536_make_merge_request_statuses_not_null.rb b/db/migrate/20171124132536_make_merge_request_statuses_not_null.rb
deleted file mode 100644
index 49b693c5950..00000000000
--- a/db/migrate/20171124132536_make_merge_request_statuses_not_null.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MakeMergeRequestStatusesNotNull < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    change_column_null :merge_requests, :state, false
-    change_column_null :merge_requests, :merge_status, false
-  end
-end
diff --git a/db/migrate/20171127151038_add_events_related_columns_to_merge_request_metrics.rb b/db/migrate/20171127151038_add_events_related_columns_to_merge_request_metrics.rb
deleted file mode 100644
index 385de9dd73d..00000000000
--- a/db/migrate/20171127151038_add_events_related_columns_to_merge_request_metrics.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-class AddEventsRelatedColumnsToMergeRequestMetrics < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    change_table :merge_request_metrics do |t|
-      t.references :merged_by, references: :users
-      t.references :latest_closed_by, references: :users
-    end
-
-    add_column :merge_request_metrics, :latest_closed_at, :datetime_with_timezone
-
-    add_concurrent_foreign_key :merge_request_metrics, :users,
-                               column: :merged_by_id,
-                               on_delete: :nullify
-
-    add_concurrent_foreign_key :merge_request_metrics, :users,
-                               column: :latest_closed_by_id,
-                               on_delete: :nullify
-  end
-
-  def down
-    if foreign_keys_for(:merge_request_metrics, :merged_by_id).any?
-      remove_foreign_key :merge_request_metrics, column: :merged_by_id
-    end
-
-    if foreign_keys_for(:merge_request_metrics, :latest_closed_by_id).any?
-      remove_foreign_key :merge_request_metrics, column: :latest_closed_by_id
-    end
-
-    remove_columns :merge_request_metrics,
-      :merged_by_id, :latest_closed_by_id, :latest_closed_at
-  end
-end
diff --git a/db/migrate/20171204204233_add_permanent_to_redirect_route.rb b/db/migrate/20171204204233_add_permanent_to_redirect_route.rb
deleted file mode 100644
index bc0658035d6..00000000000
--- a/db/migrate/20171204204233_add_permanent_to_redirect_route.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddPermanentToRedirectRoute < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def up
-    add_column(:redirect_routes, :permanent, :boolean)
-  end
-
-  def down
-    remove_column(:redirect_routes, :permanent)
-  end
-end
diff --git a/db/migrate/20171206221519_add_permanent_index_to_redirect_route.rb b/db/migrate/20171206221519_add_permanent_index_to_redirect_route.rb
deleted file mode 100644
index ba924c4eecc..00000000000
--- a/db/migrate/20171206221519_add_permanent_index_to_redirect_route.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddPermanentIndexToRedirectRoute < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:redirect_routes, :permanent)
-  end
-
-  def down
-    remove_concurrent_index(:redirect_routes, :permanent) if index_exists?(:redirect_routes, :permanent)
-  end
-end
diff --git a/db/migrate/20171207185153_add_merge_request_state_index.rb b/db/migrate/20171207185153_add_merge_request_state_index.rb
deleted file mode 100644
index 167470cf7fe..00000000000
--- a/db/migrate/20171207185153_add_merge_request_state_index.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class AddMergeRequestStateIndex < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index :merge_requests, [:source_project_id, :source_branch],
-                         where: "state = 'opened'",
-                         name: 'index_merge_requests_on_source_project_and_branch_state_opened'
-  end
-
-  def down
-    remove_concurrent_index_by_name :merge_requests,
-                                    'index_merge_requests_on_source_project_and_branch_state_opened'
-  end
-end
diff --git a/db/migrate/20171211131502_add_external_classification_authorization_settings_to_appliction_settings.rb b/db/migrate/20171211131502_add_external_classification_authorization_settings_to_appliction_settings.rb
deleted file mode 100644
index a7dec8732fb..00000000000
--- a/db/migrate/20171211131502_add_external_classification_authorization_settings_to_appliction_settings.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-class AddExternalClassificationAuthorizationSettingsToApplictionSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :application_settings,
-                            :external_authorization_service_enabled,
-                            :boolean,
-                            default: false
-    add_column :application_settings,
-               :external_authorization_service_url,
-               :string
-    add_column :application_settings,
-               :external_authorization_service_default_label,
-               :string
-  end
-
-  def down
-    remove_column :application_settings,
-                  :external_authorization_service_default_label
-    remove_column :application_settings,
-                  :external_authorization_service_url
-    remove_column :application_settings,
-                  :external_authorization_service_enabled
-  end
-end
diff --git a/db/migrate/20171211145425_add_can_push_to_deploy_keys_projects.rb b/db/migrate/20171211145425_add_can_push_to_deploy_keys_projects.rb
deleted file mode 100644
index 63e86b23aad..00000000000
--- a/db/migrate/20171211145425_add_can_push_to_deploy_keys_projects.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddCanPushToDeployKeysProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-  disable_ddl_transaction!
-
-  def up
-    add_column_with_default :deploy_keys_projects, :can_push, :boolean, default: false, allow_null: false
-  end
-
-  def down
-    remove_column :deploy_keys_projects, :can_push
-  end
-end
diff --git a/db/migrate/20171212203433_create_clusters_applications_prometheus.rb b/db/migrate/20171212203433_create_clusters_applications_prometheus.rb
deleted file mode 100644
index 6eb9fec609e..00000000000
--- a/db/migrate/20171212203433_create_clusters_applications_prometheus.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class CreateClustersApplicationsPrometheus < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    create_table :clusters_applications_prometheus do |t|
-      t.references :cluster, null: false, unique: true, foreign_key: { on_delete: :cascade }
-
-      t.integer :status, null: false
-      t.string :version, null: false
-
-      t.text :status_reason
-
-      t.timestamps_with_timezone null: false
-    end
-  end
-end
diff --git a/db/migrate/20171214144320_add_store_column_to_uploads.rb b/db/migrate/20171214144320_add_store_column_to_uploads.rb
deleted file mode 100644
index 11b3951a3fa..00000000000
--- a/db/migrate/20171214144320_add_store_column_to_uploads.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddStoreColumnToUploads < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column(:uploads, :store, :integer)
-  end
-end
diff --git a/db/migrate/20171215113714_populate_can_push_from_deploy_keys_projects.rb b/db/migrate/20171215113714_populate_can_push_from_deploy_keys_projects.rb
deleted file mode 100644
index e2d7879b140..00000000000
--- a/db/migrate/20171215113714_populate_can_push_from_deploy_keys_projects.rb
+++ /dev/null
@@ -1,64 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PopulateCanPushFromDeployKeysProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-  DATABASE_NAME = Gitlab::Database.database_name
-
-  disable_ddl_transaction!
-
-  class DeploysKeyProject < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'deploy_keys_projects'
-  end
-
-  def up
-    DeploysKeyProject.each_batch(of: 10_000) do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      if Gitlab::Database.mysql?
-        execute <<-EOF.strip_heredoc
-          UPDATE deploy_keys_projects, #{DATABASE_NAME}.keys
-          SET deploy_keys_projects.can_push = #{DATABASE_NAME}.keys.can_push
-          WHERE deploy_keys_projects.deploy_key_id = #{DATABASE_NAME}.keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      else
-        execute <<-EOF.strip_heredoc
-          UPDATE deploy_keys_projects
-          SET can_push = keys.can_push
-          FROM keys
-          WHERE deploy_key_id = keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      end
-    end
-  end
-
-  def down
-    DeploysKeyProject.each_batch(of: 10_000) do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      if Gitlab::Database.mysql?
-        execute <<-EOF.strip_heredoc
-          UPDATE deploy_keys_projects, #{DATABASE_NAME}.keys
-          SET #{DATABASE_NAME}.keys.can_push = deploy_keys_projects.can_push
-          WHERE deploy_keys_projects.deploy_key_id = #{DATABASE_NAME}.keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      else
-        execute <<-EOF.strip_heredoc
-          UPDATE keys
-          SET can_push = deploy_keys_projects.can_push
-          FROM deploy_keys_projects
-          WHERE deploy_keys_projects.deploy_key_id = keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      end
-    end
-  end
-end
diff --git a/db/migrate/20171216112339_add_foreign_key_for_members.rb b/db/migrate/20171216112339_add_foreign_key_for_members.rb
deleted file mode 100644
index 06c2c5068da..00000000000
--- a/db/migrate/20171216112339_add_foreign_key_for_members.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddForeignKeyForMembers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_foreign_key(:members,
-                               :users,
-                               column: :user_id)
-  end
-
-  def down
-    remove_foreign_key(:members, column: :user_id)
-  end
-end
diff --git a/db/migrate/20171218140451_add_external_authorization_service_classification_label_to_projects.rb b/db/migrate/20171218140451_add_external_authorization_service_classification_label_to_projects.rb
deleted file mode 100644
index 7b83580f025..00000000000
--- a/db/migrate/20171218140451_add_external_authorization_service_classification_label_to_projects.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddExternalAuthorizationServiceClassificationLabelToProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :projects,
-               :external_authorization_classification_label,
-               :string
-  end
-end
diff --git a/db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb b/db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb
deleted file mode 100644
index 7543e435941..00000000000
--- a/db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-class AddIndexOnNamespacesLowerName < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-  INDEX_NAME = 'index_on_namespaces_lower_name'
-
-  disable_ddl_transaction!
-
-  def up
-    return unless Gitlab::Database.postgresql?
-
-    disable_statement_timeout do
-      if Gitlab::Database.version.to_f >= 9.5
-        # Allow us to hot-patch the index manually ahead of the migration
-        execute "CREATE INDEX CONCURRENTLY IF NOT EXISTS #{INDEX_NAME} ON namespaces (lower(name));"
-      else
-        execute "CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON namespaces (lower(name));"
-      end
-    end
-  end
-
-  def down
-    return unless Gitlab::Database.postgresql?
-
-    disable_statement_timeout do
-      if Gitlab::Database.version.to_f >= 9.2
-        execute "DROP INDEX CONCURRENTLY IF EXISTS #{INDEX_NAME};"
-      else
-        execute "DROP INDEX IF EXISTS #{INDEX_NAME};"
-      end
-    end
-  end
-end
diff --git a/db/migrate/20171222115326_add_confidential_note_events_to_web_hooks.rb b/db/migrate/20171222115326_add_confidential_note_events_to_web_hooks.rb
deleted file mode 100644
index 788a842a3ad..00000000000
--- a/db/migrate/20171222115326_add_confidential_note_events_to_web_hooks.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddConfidentialNoteEventsToWebHooks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_column :web_hooks, :confidential_note_events, :boolean
-  end
-
-  def down
-    remove_column :web_hooks, :confidential_note_events
-  end
-end
diff --git a/db/migrate/20171222183504_add_jobs_cache_index_to_project.rb b/db/migrate/20171222183504_add_jobs_cache_index_to_project.rb
deleted file mode 100644
index 78a195c351c..00000000000
--- a/db/migrate/20171222183504_add_jobs_cache_index_to_project.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddJobsCacheIndexToProject < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    add_column :projects, :jobs_cache_index, :integer
-  end
-end
diff --git a/db/migrate/20171229225929_change_user_project_limit_not_null_and_remove_default.rb b/db/migrate/20171229225929_change_user_project_limit_not_null_and_remove_default.rb
deleted file mode 100644
index b9efdb8bb8f..00000000000
--- a/db/migrate/20171229225929_change_user_project_limit_not_null_and_remove_default.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ChangeUserProjectLimitNotNullAndRemoveDefault < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def up
-    # Set Users#projects_limit to NOT NULL and remove the default value
-    change_column_null :users, :projects_limit, false
-    change_column_default :users, :projects_limit, nil
-  end
-
-  def down
-    change_column_null :users, :projects_limit, true
-    change_column_default :users, :projects_limit, 10
-  end
-end
diff --git a/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb b/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb
deleted file mode 100644
index 4e1107e1ff5..00000000000
--- a/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class AddRebaseCommitShaToMergeRequestsCe < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    unless column_exists?(:merge_requests, :rebase_commit_sha)
-      add_column :merge_requests, :rebase_commit_sha, :string
-    end
-  end
-
-  def down
-    if column_exists?(:merge_requests, :rebase_commit_sha)
-      remove_column :merge_requests, :rebase_commit_sha
-    end
-  end
-end
diff --git a/db/migrate/20171230123729_init_schema.rb b/db/migrate/20171230123729_init_schema.rb
new file mode 100644
index 00000000000..ae7541f2475
--- /dev/null
+++ b/db/migrate/20171230123729_init_schema.rb
@@ -0,0 +1,1854 @@
+# frozen_string_literal: true
+
+# rubocop:disable Layout/SpaceInsideHashLiteralBraces
+# rubocop:disable Layout/SpaceAroundOperators
+# rubocop:disable Metrics/AbcSize
+# rubocop:disable Migration/AddConcurrentForeignKey
+# rubocop:disable Style/WordArray
+
+class InitSchema < ActiveRecord::Migration[4.2]
+  DOWNTIME = false
+
+  def up
+    # These are extensions that must be enabled in order to support this database
+    enable_extension "plpgsql"
+    enable_extension "pg_trgm"
+    create_table "abuse_reports", id: :serial do |t|
+      t.integer "reporter_id"
+      t.integer "user_id"
+      t.text "message"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.text "message_html"
+      t.integer "cached_markdown_version"
+    end
+    create_table "appearances", id: :serial do |t|
+      t.string "title", null: false
+      t.text "description", null: false
+      t.string "header_logo"
+      t.string "logo"
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.text "description_html"
+      t.integer "cached_markdown_version"
+      t.string "favicon"
+      t.text "new_project_guidelines"
+      t.text "new_project_guidelines_html"
+    end
+    create_table "application_settings", id: :serial do |t|
+      t.integer "default_projects_limit"
+      t.boolean "signup_enabled"
+      t.boolean "gravatar_enabled"
+      t.text "sign_in_text"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "home_page_url"
+      t.integer "default_branch_protection", default: 2
+      t.text "restricted_visibility_levels"
+      t.boolean "version_check_enabled", default: true
+      t.integer "max_attachment_size", default: 10, null: false
+      t.integer "default_project_visibility"
+      t.integer "default_snippet_visibility"
+      t.text "domain_whitelist"
+      t.boolean "user_oauth_applications", default: true
+      t.string "after_sign_out_path"
+      t.integer "session_expire_delay", default: 10080, null: false
+      t.text "import_sources"
+      t.text "help_page_text"
+      t.string "admin_notification_email"
+      t.boolean "shared_runners_enabled", default: true, null: false
+      t.integer "max_artifacts_size", default: 100, null: false
+      t.string "runners_registration_token"
+      t.integer "max_pages_size", default: 100, null: false
+      t.boolean "require_two_factor_authentication", default: false
+      t.integer "two_factor_grace_period", default: 48
+      t.boolean "metrics_enabled", default: false
+      t.string "metrics_host", default: "localhost"
+      t.integer "metrics_pool_size", default: 16
+      t.integer "metrics_timeout", default: 10
+      t.integer "metrics_method_call_threshold", default: 10
+      t.boolean "recaptcha_enabled", default: false
+      t.string "recaptcha_site_key"
+      t.string "recaptcha_private_key"
+      t.integer "metrics_port", default: 8089
+      t.boolean "akismet_enabled", default: false
+      t.string "akismet_api_key"
+      t.integer "metrics_sample_interval", default: 15
+      t.boolean "sentry_enabled", default: false
+      t.string "sentry_dsn"
+      t.boolean "email_author_in_body", default: false
+      t.integer "default_group_visibility"
+      t.boolean "repository_checks_enabled", default: false
+      t.text "shared_runners_text"
+      t.integer "metrics_packet_size", default: 1
+      t.text "disabled_oauth_sign_in_sources"
+      t.string "health_check_access_token"
+      t.boolean "send_user_confirmation_email", default: false
+      t.integer "container_registry_token_expire_delay", default: 5
+      t.text "after_sign_up_text"
+      t.boolean "user_default_external", default: false, null: false
+      t.string "repository_storages", default: "default"
+      t.string "enabled_git_access_protocol"
+      t.boolean "domain_blacklist_enabled", default: false
+      t.text "domain_blacklist"
+      t.boolean "usage_ping_enabled", default: true, null: false
+      t.boolean "koding_enabled"
+      t.string "koding_url"
+      t.text "sign_in_text_html"
+      t.text "help_page_text_html"
+      t.text "shared_runners_text_html"
+      t.text "after_sign_up_text_html"
+      t.integer "rsa_key_restriction", default: 0, null: false
+      t.integer "dsa_key_restriction", default: 0, null: false
+      t.integer "ecdsa_key_restriction", default: 0, null: false
+      t.integer "ed25519_key_restriction", default: 0, null: false
+      t.boolean "housekeeping_enabled", default: true, null: false
+      t.boolean "housekeeping_bitmaps_enabled", default: true, null: false
+      t.integer "housekeeping_incremental_repack_period", default: 10, null: false
+      t.integer "housekeeping_full_repack_period", default: 50, null: false
+      t.integer "housekeeping_gc_period", default: 200, null: false
+      t.boolean "sidekiq_throttling_enabled", default: false
+      t.string "sidekiq_throttling_queues"
+      t.decimal "sidekiq_throttling_factor"
+      t.boolean "html_emails_enabled", default: true
+      t.string "plantuml_url"
+      t.boolean "plantuml_enabled"
+      t.integer "terminal_max_session_time", default: 0, null: false
+      t.integer "unique_ips_limit_per_user"
+      t.integer "unique_ips_limit_time_window"
+      t.boolean "unique_ips_limit_enabled", default: false, null: false
+      t.string "default_artifacts_expire_in", default: "0", null: false
+      t.string "uuid"
+      t.decimal "polling_interval_multiplier", default: "1.0", null: false
+      t.integer "cached_markdown_version"
+      t.boolean "clientside_sentry_enabled", default: false, null: false
+      t.string "clientside_sentry_dsn"
+      t.boolean "prometheus_metrics_enabled", default: false, null: false
+      t.boolean "authorized_keys_enabled", default: true, null: false
+      t.boolean "help_page_hide_commercial_content", default: false
+      t.string "help_page_support_url"
+      t.integer "performance_bar_allowed_group_id"
+      t.boolean "hashed_storage_enabled", default: false, null: false
+      t.boolean "project_export_enabled", default: true, null: false
+      t.boolean "auto_devops_enabled", default: false, null: false
+      t.boolean "throttle_unauthenticated_enabled", default: false, null: false
+      t.integer "throttle_unauthenticated_requests_per_period", default: 3600, null: false
+      t.integer "throttle_unauthenticated_period_in_seconds", default: 3600, null: false
+      t.boolean "throttle_authenticated_api_enabled", default: false, null: false
+      t.integer "throttle_authenticated_api_requests_per_period", default: 7200, null: false
+      t.integer "throttle_authenticated_api_period_in_seconds", default: 3600, null: false
+      t.boolean "throttle_authenticated_web_enabled", default: false, null: false
+      t.integer "throttle_authenticated_web_requests_per_period", default: 7200, null: false
+      t.integer "throttle_authenticated_web_period_in_seconds", default: 3600, null: false
+      t.integer "circuitbreaker_failure_count_threshold", default: 3
+      t.integer "circuitbreaker_failure_reset_time", default: 1800
+      t.integer "circuitbreaker_storage_timeout", default: 15
+      t.integer "circuitbreaker_access_retries", default: 3
+      t.integer "gitaly_timeout_default", default: 55, null: false
+      t.integer "gitaly_timeout_medium", default: 30, null: false
+      t.integer "gitaly_timeout_fast", default: 10, null: false
+      t.boolean "password_authentication_enabled_for_web"
+      t.boolean "password_authentication_enabled_for_git", default: true, null: false
+      t.integer "circuitbreaker_check_interval", default: 1, null: false
+      t.boolean "external_authorization_service_enabled", default: false, null: false
+      t.string "external_authorization_service_url"
+      t.string "external_authorization_service_default_label"
+    end
+    create_table "audit_events", id: :serial do |t|
+      t.integer "author_id", null: false
+      t.string "type", null: false
+      t.integer "entity_id", null: false
+      t.string "entity_type", null: false
+      t.text "details"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["entity_id", "entity_type"], name: "index_audit_events_on_entity_id_and_entity_type", using: :btree
+    end
+    create_table "award_emoji", id: :serial do |t|
+      t.string "name"
+      t.integer "user_id"
+      t.string "awardable_type"
+      t.integer "awardable_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["awardable_type", "awardable_id"], name: "index_award_emoji_on_awardable_type_and_awardable_id", using: :btree
+      t.index ["user_id", "name"], name: "index_award_emoji_on_user_id_and_name", using: :btree
+    end
+    create_table "boards", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["project_id"], name: "index_boards_on_project_id", using: :btree
+    end
+    create_table "broadcast_messages", id: :serial do |t|
+      t.text "message", null: false
+      t.datetime "starts_at", null: false
+      t.datetime "ends_at", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.string "color"
+      t.string "font"
+      t.text "message_html", null: false
+      t.integer "cached_markdown_version"
+      t.index ["starts_at", "ends_at", "id"], name: "index_broadcast_messages_on_starts_at_and_ends_at_and_id", using: :btree
+    end
+    create_table "chat_names", id: :serial do |t|
+      t.integer "user_id", null: false
+      t.integer "service_id", null: false
+      t.string "team_id", null: false
+      t.string "team_domain"
+      t.string "chat_id", null: false
+      t.string "chat_name"
+      t.datetime "last_used_at"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["service_id", "team_id", "chat_id"], name: "index_chat_names_on_service_id_and_team_id_and_chat_id", unique: true, using: :btree
+      t.index ["user_id", "service_id"], name: "index_chat_names_on_user_id_and_service_id", unique: true, using: :btree
+    end
+    create_table "chat_teams", id: :serial do |t|
+      t.integer "namespace_id", null: false
+      t.string "team_id"
+      t.string "name"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["namespace_id"], name: "index_chat_teams_on_namespace_id", unique: true, using: :btree
+    end
+    create_table "ci_build_trace_section_names", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.string "name", null: false
+      t.index ["project_id", "name"], name: "index_ci_build_trace_section_names_on_project_id_and_name", unique: true, using: :btree
+    end
+    create_table "ci_build_trace_sections", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.datetime_with_timezone "date_start", null: false
+      t.datetime_with_timezone "date_end", null: false
+      t.bigint "byte_start", null: false
+      t.bigint "byte_end", null: false
+      t.integer "build_id", null: false
+      t.integer "section_name_id", null: false
+      t.index ["build_id", "section_name_id"], name: "index_ci_build_trace_sections_on_build_id_and_section_name_id", unique: true, using: :btree
+      t.index ["project_id"], name: "index_ci_build_trace_sections_on_project_id", using: :btree
+    end
+    create_table "ci_builds", id: :serial do |t|
+      t.string "status"
+      t.datetime "finished_at"
+      t.text "trace"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.datetime "started_at"
+      t.integer "runner_id"
+      t.float "coverage"
+      t.integer "commit_id"
+      t.text "commands"
+      t.string "name"
+      t.text "options"
+      t.boolean "allow_failure", default: false, null: false
+      t.string "stage"
+      t.integer "trigger_request_id"
+      t.integer "stage_idx"
+      t.boolean "tag"
+      t.string "ref"
+      t.integer "user_id"
+      t.string "type"
+      t.string "target_url"
+      t.string "description"
+      t.text "artifacts_file"
+      t.integer "project_id"
+      t.text "artifacts_metadata"
+      t.integer "erased_by_id"
+      t.datetime "erased_at"
+      t.datetime "artifacts_expire_at"
+      t.string "environment"
+      t.bigint "artifacts_size"
+      t.string "when"
+      t.text "yaml_variables"
+      t.datetime "queued_at"
+      t.string "token"
+      t.integer "lock_version"
+      t.string "coverage_regex"
+      t.integer "auto_canceled_by_id"
+      t.boolean "retried"
+      t.integer "stage_id"
+      t.integer "artifacts_file_store"
+      t.integer "artifacts_metadata_store"
+      t.boolean "protected"
+      t.integer "failure_reason"
+      t.index ["auto_canceled_by_id"], name: "index_ci_builds_on_auto_canceled_by_id", using: :btree
+      t.index ["commit_id", "stage_idx", "created_at"], name: "index_ci_builds_on_commit_id_and_stage_idx_and_created_at", using: :btree
+      t.index ["commit_id", "status", "type"], name: "index_ci_builds_on_commit_id_and_status_and_type", using: :btree
+      t.index ["commit_id", "type", "name", "ref"], name: "index_ci_builds_on_commit_id_and_type_and_name_and_ref", using: :btree
+      t.index ["commit_id", "type", "ref"], name: "index_ci_builds_on_commit_id_and_type_and_ref", using: :btree
+      t.index ["project_id", "id"], name: "index_ci_builds_on_project_id_and_id", using: :btree
+      t.index ["protected"], name: "index_ci_builds_on_protected", using: :btree
+      t.index ["runner_id"], name: "index_ci_builds_on_runner_id", using: :btree
+      t.index ["stage_id"], name: "index_ci_builds_on_stage_id", using: :btree
+      t.index ["status", "type", "runner_id"], name: "index_ci_builds_on_status_and_type_and_runner_id", using: :btree
+      t.index ["status"], name: "index_ci_builds_on_status", using: :btree
+      t.index ["token"], name: "index_ci_builds_on_token", unique: true, using: :btree
+      t.index ["updated_at"], name: "index_ci_builds_on_updated_at", using: :btree
+      t.index ["user_id"], name: "index_ci_builds_on_user_id", using: :btree
+    end
+    create_table "ci_group_variables", id: :serial do |t|
+      t.string "key", null: false
+      t.text "value"
+      t.text "encrypted_value"
+      t.string "encrypted_value_salt"
+      t.string "encrypted_value_iv"
+      t.integer "group_id", null: false
+      t.boolean "protected", default: false, null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.index ["group_id", "key"], name: "index_ci_group_variables_on_group_id_and_key", unique: true, using: :btree
+    end
+    create_table "ci_job_artifacts", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "job_id", null: false
+      t.integer "file_type", null: false
+      t.bigint "size"
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.datetime_with_timezone "expire_at"
+      t.string "file"
+      t.integer "file_store"
+      t.index ["job_id", "file_type"], name: "index_ci_job_artifacts_on_job_id_and_file_type", unique: true, using: :btree
+      t.index ["project_id"], name: "index_ci_job_artifacts_on_project_id", using: :btree
+    end
+    create_table "ci_pipeline_schedule_variables", id: :serial do |t|
+      t.string "key", null: false
+      t.text "value"
+      t.text "encrypted_value"
+      t.string "encrypted_value_salt"
+      t.string "encrypted_value_iv"
+      t.integer "pipeline_schedule_id", null: false
+      t.datetime_with_timezone "created_at"
+      t.datetime_with_timezone "updated_at"
+      t.index ["pipeline_schedule_id", "key"], name: "index_ci_pipeline_schedule_variables_on_schedule_id_and_key", unique: true, using: :btree
+    end
+    create_table "ci_pipeline_schedules", id: :serial do |t|
+      t.string "description"
+      t.string "ref"
+      t.string "cron"
+      t.string "cron_timezone"
+      t.datetime "next_run_at"
+      t.integer "project_id"
+      t.integer "owner_id"
+      t.boolean "active", default: true
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["next_run_at", "active"], name: "index_ci_pipeline_schedules_on_next_run_at_and_active", using: :btree
+      t.index ["project_id"], name: "index_ci_pipeline_schedules_on_project_id", using: :btree
+    end
+    create_table "ci_pipeline_variables", id: :serial do |t|
+      t.string "key", null: false
+      t.text "value"
+      t.text "encrypted_value"
+      t.string "encrypted_value_salt"
+      t.string "encrypted_value_iv"
+      t.integer "pipeline_id", null: false
+      t.index ["pipeline_id", "key"], name: "index_ci_pipeline_variables_on_pipeline_id_and_key", unique: true, using: :btree
+    end
+    create_table "ci_pipelines", id: :serial do |t|
+      t.string "ref"
+      t.string "sha"
+      t.string "before_sha"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.boolean "tag", default: false
+      t.text "yaml_errors"
+      t.datetime "committed_at"
+      t.integer "project_id"
+      t.string "status"
+      t.datetime "started_at"
+      t.datetime "finished_at"
+      t.integer "duration"
+      t.integer "user_id"
+      t.integer "lock_version"
+      t.integer "auto_canceled_by_id"
+      t.integer "pipeline_schedule_id"
+      t.integer "source"
+      t.boolean "protected"
+      t.integer "config_source"
+      t.integer "failure_reason"
+      t.index ["auto_canceled_by_id"], name: "index_ci_pipelines_on_auto_canceled_by_id", using: :btree
+      t.index ["pipeline_schedule_id"], name: "index_ci_pipelines_on_pipeline_schedule_id", using: :btree
+      t.index ["project_id", "ref", "status", "id"], name: "index_ci_pipelines_on_project_id_and_ref_and_status_and_id", using: :btree
+      t.index ["project_id", "sha"], name: "index_ci_pipelines_on_project_id_and_sha", using: :btree
+      t.index ["project_id"], name: "index_ci_pipelines_on_project_id", using: :btree
+      t.index ["status"], name: "index_ci_pipelines_on_status", using: :btree
+      t.index ["user_id"], name: "index_ci_pipelines_on_user_id", using: :btree
+    end
+    create_table "ci_runner_namespaces", id: :serial do |t|
+      t.integer "runner_id"
+      t.integer "namespace_id"
+      t.index ["namespace_id"], name: "index_ci_runner_namespaces_on_namespace_id", using: :btree
+      t.index ["runner_id", "namespace_id"], name: "index_ci_runner_namespaces_on_runner_id_and_namespace_id", unique: true, using: :btree
+    end
+    create_table "ci_runner_projects", id: :serial do |t|
+      t.integer "runner_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "project_id"
+      t.index ["project_id"], name: "index_ci_runner_projects_on_project_id", using: :btree
+      t.index ["runner_id"], name: "index_ci_runner_projects_on_runner_id", using: :btree
+    end
+    create_table "ci_runners", id: :serial do |t|
+      t.string "token"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "description"
+      t.datetime "contacted_at"
+      t.boolean "active", default: true, null: false
+      t.boolean "is_shared", default: false
+      t.string "name"
+      t.string "version"
+      t.string "revision"
+      t.string "platform"
+      t.string "architecture"
+      t.boolean "run_untagged", default: true, null: false
+      t.boolean "locked", default: false, null: false
+      t.integer "access_level", default: 0, null: false
+      t.index ["contacted_at"], name: "index_ci_runners_on_contacted_at", using: :btree
+      t.index ["is_shared"], name: "index_ci_runners_on_is_shared", using: :btree
+      t.index ["locked"], name: "index_ci_runners_on_locked", using: :btree
+      t.index ["token"], name: "index_ci_runners_on_token", using: :btree
+    end
+    create_table "ci_stages", id: :serial do |t|
+      t.integer "project_id"
+      t.integer "pipeline_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "name"
+      t.integer "status"
+      t.integer "lock_version"
+      t.index ["pipeline_id", "name"], name: "index_ci_stages_on_pipeline_id_and_name", using: :btree
+      t.index ["pipeline_id"], name: "index_ci_stages_on_pipeline_id", using: :btree
+      t.index ["project_id"], name: "index_ci_stages_on_project_id", using: :btree
+    end
+    create_table "ci_trigger_requests", id: :serial do |t|
+      t.integer "trigger_id", null: false
+      t.text "variables"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "commit_id"
+      t.index ["commit_id"], name: "index_ci_trigger_requests_on_commit_id", using: :btree
+    end
+    create_table "ci_triggers", id: :serial do |t|
+      t.string "token"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "project_id"
+      t.integer "owner_id"
+      t.string "description"
+      t.string "ref"
+      t.index ["project_id"], name: "index_ci_triggers_on_project_id", using: :btree
+    end
+    create_table "ci_variables", id: :serial do |t|
+      t.string "key", null: false
+      t.text "value"
+      t.text "encrypted_value"
+      t.string "encrypted_value_salt"
+      t.string "encrypted_value_iv"
+      t.integer "project_id", null: false
+      t.boolean "protected", default: false, null: false
+      t.string "environment_scope", default: "*", null: false
+      t.index ["project_id", "key", "environment_scope"], name: "index_ci_variables_on_project_id_and_key_and_environment_scope", unique: true, using: :btree
+    end
+    create_table "cluster_platforms_kubernetes", id: :serial do |t|
+      t.integer "cluster_id", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.text "api_url"
+      t.text "ca_cert"
+      t.string "namespace"
+      t.string "username"
+      t.text "encrypted_password"
+      t.string "encrypted_password_iv"
+      t.text "encrypted_token"
+      t.string "encrypted_token_iv"
+      t.index ["cluster_id"], name: "index_cluster_platforms_kubernetes_on_cluster_id", unique: true, using: :btree
+    end
+    create_table "cluster_projects", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "cluster_id", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.index ["cluster_id"], name: "index_cluster_projects_on_cluster_id", using: :btree
+      t.index ["project_id"], name: "index_cluster_projects_on_project_id", using: :btree
+    end
+    create_table "cluster_providers_gcp", id: :serial do |t|
+      t.integer "cluster_id", null: false
+      t.integer "status"
+      t.integer "num_nodes", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.text "status_reason"
+      t.string "gcp_project_id", null: false
+      t.string "zone", null: false
+      t.string "machine_type"
+      t.string "operation_id"
+      t.string "endpoint"
+      t.text "encrypted_access_token"
+      t.string "encrypted_access_token_iv"
+      t.index ["cluster_id"], name: "index_cluster_providers_gcp_on_cluster_id", unique: true, using: :btree
+    end
+    create_table "clusters", id: :serial do |t|
+      t.integer "user_id"
+      t.integer "provider_type"
+      t.integer "platform_type"
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.boolean "enabled", default: true
+      t.string "name", null: false
+      t.string "environment_scope", default: "*", null: false
+      t.index ["enabled"], name: "index_clusters_on_enabled", using: :btree
+      t.index ["user_id"], name: "index_clusters_on_user_id", using: :btree
+    end
+    create_table "clusters_applications_helm", id: :serial do |t|
+      t.integer "cluster_id", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "status", null: false
+      t.string "version", null: false
+      t.text "status_reason"
+    end
+    create_table "clusters_applications_ingress", id: :serial do |t|
+      t.integer "cluster_id", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "status", null: false
+      t.integer "ingress_type", null: false
+      t.string "version", null: false
+      t.string "cluster_ip"
+      t.text "status_reason"
+    end
+    create_table "clusters_applications_prometheus", id: :serial do |t|
+      t.integer "cluster_id", null: false
+      t.integer "status", null: false
+      t.string "version", null: false
+      t.text "status_reason"
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+    end
+    create_table "container_repositories", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.string "name", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["project_id", "name"], name: "index_container_repositories_on_project_id_and_name", unique: true, using: :btree
+      t.index ["project_id"], name: "index_container_repositories_on_project_id", using: :btree
+    end
+    create_table "conversational_development_index_metrics", id: :serial do |t|
+      t.float "leader_issues", null: false
+      t.float "instance_issues", null: false
+      t.float "leader_notes", null: false
+      t.float "instance_notes", null: false
+      t.float "leader_milestones", null: false
+      t.float "instance_milestones", null: false
+      t.float "leader_boards", null: false
+      t.float "instance_boards", null: false
+      t.float "leader_merge_requests", null: false
+      t.float "instance_merge_requests", null: false
+      t.float "leader_ci_pipelines", null: false
+      t.float "instance_ci_pipelines", null: false
+      t.float "leader_environments", null: false
+      t.float "instance_environments", null: false
+      t.float "leader_deployments", null: false
+      t.float "instance_deployments", null: false
+      t.float "leader_projects_prometheus_active", null: false
+      t.float "instance_projects_prometheus_active", null: false
+      t.float "leader_service_desk_issues", null: false
+      t.float "instance_service_desk_issues", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.float "percentage_boards", default: 0.0, null: false
+      t.float "percentage_ci_pipelines", default: 0.0, null: false
+      t.float "percentage_deployments", default: 0.0, null: false
+      t.float "percentage_environments", default: 0.0, null: false
+      t.float "percentage_issues", default: 0.0, null: false
+      t.float "percentage_merge_requests", default: 0.0, null: false
+      t.float "percentage_milestones", default: 0.0, null: false
+      t.float "percentage_notes", default: 0.0, null: false
+      t.float "percentage_projects_prometheus_active", default: 0.0, null: false
+      t.float "percentage_service_desk_issues", default: 0.0, null: false
+    end
+    create_table "deploy_keys_projects", id: :serial do |t|
+      t.integer "deploy_key_id", null: false
+      t.integer "project_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.boolean "can_push", default: false, null: false
+      t.index ["project_id"], name: "index_deploy_keys_projects_on_project_id", using: :btree
+    end
+    create_table "deployments", id: :serial do |t|
+      t.integer "iid", null: false
+      t.integer "project_id", null: false
+      t.integer "environment_id", null: false
+      t.string "ref", null: false
+      t.boolean "tag", null: false
+      t.string "sha", null: false
+      t.integer "user_id"
+      t.integer "deployable_id"
+      t.string "deployable_type"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "on_stop"
+      t.index ["created_at"], name: "index_deployments_on_created_at", using: :btree
+      t.index ["environment_id", "id"], name: "index_deployments_on_environment_id_and_id", using: :btree
+      t.index ["environment_id", "iid", "project_id"], name: "index_deployments_on_environment_id_and_iid_and_project_id", using: :btree
+      t.index ["project_id", "iid"], name: "index_deployments_on_project_id_and_iid", unique: true, using: :btree
+    end
+    create_table "emails", id: :serial do |t|
+      t.integer "user_id", null: false
+      t.string "email", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "confirmation_token"
+      t.datetime_with_timezone "confirmed_at"
+      t.datetime_with_timezone "confirmation_sent_at"
+      t.index ["confirmation_token"], name: "index_emails_on_confirmation_token", unique: true, using: :btree
+      t.index ["email"], name: "index_emails_on_email", unique: true, using: :btree
+      t.index ["user_id"], name: "index_emails_on_user_id", using: :btree
+    end
+    create_table "environments", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.string "name", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "external_url"
+      t.string "environment_type"
+      t.string "state", default: "available", null: false
+      t.string "slug", null: false
+      t.index ["project_id", "name"], name: "index_environments_on_project_id_and_name", unique: true, using: :btree
+      t.index ["project_id", "slug"], name: "index_environments_on_project_id_and_slug", unique: true, using: :btree
+    end
+    create_table "events", id: :serial do |t|
+      t.integer "project_id"
+      t.integer "author_id", null: false
+      t.integer "target_id"
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "action", limit: 2, null: false
+      t.string "target_type"
+      t.index ["action"], name: "index_events_on_action", using: :btree
+      t.index ["author_id"], name: "index_events_on_author_id", using: :btree
+      t.index ["project_id", "id"], name: "index_events_on_project_id_and_id", using: :btree
+      t.index ["target_type", "target_id"], name: "index_events_on_target_type_and_target_id", using: :btree
+    end
+    create_table "feature_gates", id: :serial do |t|
+      t.string "feature_key", null: false
+      t.string "key", null: false
+      t.string "value"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["feature_key", "key", "value"], name: "index_feature_gates_on_feature_key_and_key_and_value", unique: true, using: :btree
+    end
+    create_table "features", id: :serial do |t|
+      t.string "key", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["key"], name: "index_features_on_key", unique: true, using: :btree
+    end
+    create_table "fork_network_members", id: :serial do |t|
+      t.integer "fork_network_id", null: false
+      t.integer "project_id", null: false
+      t.integer "forked_from_project_id"
+      t.index ["fork_network_id"], name: "index_fork_network_members_on_fork_network_id", using: :btree
+      t.index ["project_id"], name: "index_fork_network_members_on_project_id", unique: true, using: :btree
+    end
+    create_table "fork_networks", id: :serial do |t|
+      t.integer "root_project_id"
+      t.string "deleted_root_project_name"
+      t.index ["root_project_id"], name: "index_fork_networks_on_root_project_id", unique: true, using: :btree
+    end
+    create_table "forked_project_links", id: :serial do |t|
+      t.integer "forked_to_project_id", null: false
+      t.integer "forked_from_project_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["forked_to_project_id"], name: "index_forked_project_links_on_forked_to_project_id", unique: true, using: :btree
+    end
+    create_table "gcp_clusters", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "user_id"
+      t.integer "service_id"
+      t.integer "status"
+      t.integer "gcp_cluster_size", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.boolean "enabled", default: true
+      t.text "status_reason"
+      t.string "project_namespace"
+      t.string "endpoint"
+      t.text "ca_cert"
+      t.text "encrypted_kubernetes_token"
+      t.string "encrypted_kubernetes_token_iv"
+      t.string "username"
+      t.text "encrypted_password"
+      t.string "encrypted_password_iv"
+      t.string "gcp_project_id", null: false
+      t.string "gcp_cluster_zone", null: false
+      t.string "gcp_cluster_name", null: false
+      t.string "gcp_machine_type"
+      t.string "gcp_operation_id"
+      t.text "encrypted_gcp_token"
+      t.string "encrypted_gcp_token_iv"
+      t.index ["project_id"], name: "index_gcp_clusters_on_project_id", unique: true, using: :btree
+    end
+    create_table "gpg_key_subkeys", id: :serial do |t|
+      t.integer "gpg_key_id", null: false
+      t.binary "keyid"
+      t.binary "fingerprint"
+      t.index ["fingerprint"], name: "index_gpg_key_subkeys_on_fingerprint", unique: true, using: :btree
+      t.index ["gpg_key_id"], name: "index_gpg_key_subkeys_on_gpg_key_id", using: :btree
+      t.index ["keyid"], name: "index_gpg_key_subkeys_on_keyid", unique: true, using: :btree
+    end
+    create_table "gpg_keys", id: :serial do |t|
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "user_id"
+      t.binary "primary_keyid"
+      t.binary "fingerprint"
+      t.text "key"
+      t.index ["fingerprint"], name: "index_gpg_keys_on_fingerprint", unique: true, using: :btree
+      t.index ["primary_keyid"], name: "index_gpg_keys_on_primary_keyid", unique: true, using: :btree
+      t.index ["user_id"], name: "index_gpg_keys_on_user_id", using: :btree
+    end
+    create_table "gpg_signatures", id: :serial do |t|
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "project_id"
+      t.integer "gpg_key_id"
+      t.binary "commit_sha"
+      t.binary "gpg_key_primary_keyid"
+      t.text "gpg_key_user_name"
+      t.text "gpg_key_user_email"
+      t.integer "verification_status", limit: 2, default: 0, null: false
+      t.integer "gpg_key_subkey_id"
+      t.index ["commit_sha"], name: "index_gpg_signatures_on_commit_sha", unique: true, using: :btree
+      t.index ["gpg_key_id"], name: "index_gpg_signatures_on_gpg_key_id", using: :btree
+      t.index ["gpg_key_primary_keyid"], name: "index_gpg_signatures_on_gpg_key_primary_keyid", using: :btree
+      t.index ["gpg_key_subkey_id"], name: "index_gpg_signatures_on_gpg_key_subkey_id", using: :btree
+      t.index ["project_id"], name: "index_gpg_signatures_on_project_id", using: :btree
+    end
+    create_table "group_custom_attributes", id: :serial do |t|
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "group_id", null: false
+      t.string "key", null: false
+      t.string "value", null: false
+      t.index ["group_id", "key"], name: "index_group_custom_attributes_on_group_id_and_key", unique: true, using: :btree
+      t.index ["key", "value"], name: "index_group_custom_attributes_on_key_and_value", using: :btree
+    end
+    create_table "identities", id: :serial do |t|
+      t.string "extern_uid"
+      t.string "provider"
+      t.integer "user_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["user_id"], name: "index_identities_on_user_id", using: :btree
+    end
+    create_table "issue_assignees", id: false do |t|
+      t.integer "user_id", null: false
+      t.integer "issue_id", null: false
+      t.index ["issue_id", "user_id"], name: "index_issue_assignees_on_issue_id_and_user_id", unique: true, using: :btree
+      t.index ["user_id"], name: "index_issue_assignees_on_user_id", using: :btree
+    end
+    create_table "issue_metrics", id: :serial do |t|
+      t.integer "issue_id", null: false
+      t.datetime "first_mentioned_in_commit_at"
+      t.datetime "first_associated_with_milestone_at"
+      t.datetime "first_added_to_board_at"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["issue_id"], name: "index_issue_metrics", using: :btree
+    end
+    create_table "issues", id: :serial do |t|
+      t.string "title"
+      t.integer "author_id"
+      t.integer "project_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.text "description"
+      t.integer "milestone_id"
+      t.string "state"
+      t.integer "iid"
+      t.integer "updated_by_id"
+      t.boolean "confidential", default: false, null: false
+      t.date "due_date"
+      t.integer "moved_to_id"
+      t.integer "lock_version"
+      t.text "title_html"
+      t.text "description_html"
+      t.integer "time_estimate"
+      t.integer "relative_position"
+      t.integer "cached_markdown_version"
+      t.datetime "last_edited_at"
+      t.integer "last_edited_by_id"
+      t.boolean "discussion_locked"
+      t.datetime_with_timezone "closed_at"
+      t.index ["author_id"], name: "index_issues_on_author_id", using: :btree
+      t.index ["confidential"], name: "index_issues_on_confidential", using: :btree
+      t.index ["description"], name: "index_issues_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
+      t.index ["milestone_id"], name: "index_issues_on_milestone_id", using: :btree
+      t.index ["moved_to_id"], name: "index_issues_on_moved_to_id", where: "(moved_to_id IS NOT NULL)", using: :btree
+      t.index ["project_id", "created_at", "id", "state"], name: "index_issues_on_project_id_and_created_at_and_id_and_state", using: :btree
+      t.index ["project_id", "due_date", "id", "state"], name: "idx_issues_on_project_id_and_due_date_and_id_and_state_partial", where: "(due_date IS NOT NULL)", using: :btree
+      t.index ["project_id", "iid"], name: "index_issues_on_project_id_and_iid", unique: true, using: :btree
+      t.index ["project_id", "updated_at", "id", "state"], name: "index_issues_on_project_id_and_updated_at_and_id_and_state", using: :btree
+      t.index ["relative_position"], name: "index_issues_on_relative_position", using: :btree
+      t.index ["state"], name: "index_issues_on_state", using: :btree
+      t.index ["title"], name: "index_issues_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
+      t.index ["updated_by_id"], name: "index_issues_on_updated_by_id", where: "(updated_by_id IS NOT NULL)", using: :btree
+    end
+    create_table "keys", id: :serial do |t|
+      t.integer "user_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.text "key"
+      t.string "title"
+      t.string "type"
+      t.string "fingerprint"
+      t.boolean "public", default: false, null: false
+      t.datetime "last_used_at"
+      t.index ["fingerprint"], name: "index_keys_on_fingerprint", unique: true, using: :btree
+      t.index ["user_id"], name: "index_keys_on_user_id", using: :btree
+    end
+    create_table "label_links", id: :serial do |t|
+      t.integer "label_id"
+      t.integer "target_id"
+      t.string "target_type"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["label_id"], name: "index_label_links_on_label_id", using: :btree
+      t.index ["target_id", "target_type"], name: "index_label_links_on_target_id_and_target_type", using: :btree
+    end
+    create_table "label_priorities", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "label_id", null: false
+      t.integer "priority", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["priority"], name: "index_label_priorities_on_priority", using: :btree
+      t.index ["project_id", "label_id"], name: "index_label_priorities_on_project_id_and_label_id", unique: true, using: :btree
+    end
+    create_table "labels", id: :serial do |t|
+      t.string "title"
+      t.string "color"
+      t.integer "project_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.boolean "template", default: false
+      t.string "description"
+      t.text "description_html"
+      t.string "type"
+      t.integer "group_id"
+      t.integer "cached_markdown_version"
+      t.index ["group_id", "project_id", "title"], name: "index_labels_on_group_id_and_project_id_and_title", unique: true, using: :btree
+      t.index ["project_id"], name: "index_labels_on_project_id", using: :btree
+      t.index ["template"], name: "index_labels_on_template", where: "template", using: :btree
+      t.index ["title"], name: "index_labels_on_title", using: :btree
+      t.index ["type", "project_id"], name: "index_labels_on_type_and_project_id", using: :btree
+    end
+    create_table "lfs_objects", id: :serial do |t|
+      t.string "oid", null: false
+      t.bigint "size", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "file"
+      t.integer "file_store"
+      t.index ["oid"], name: "index_lfs_objects_on_oid", unique: true, using: :btree
+    end
+    create_table "lfs_objects_projects", id: :serial do |t|
+      t.integer "lfs_object_id", null: false
+      t.integer "project_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["project_id"], name: "index_lfs_objects_projects_on_project_id", using: :btree
+    end
+    create_table "lists", id: :serial do |t|
+      t.integer "board_id", null: false
+      t.integer "label_id"
+      t.integer "list_type", default: 1, null: false
+      t.integer "position"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["board_id", "label_id"], name: "index_lists_on_board_id_and_label_id", unique: true, using: :btree
+      t.index ["label_id"], name: "index_lists_on_label_id", using: :btree
+    end
+    create_table "members", id: :serial do |t|
+      t.integer "access_level", null: false
+      t.integer "source_id", null: false
+      t.string "source_type", null: false
+      t.integer "user_id"
+      t.integer "notification_level", null: false
+      t.string "type"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "created_by_id"
+      t.string "invite_email"
+      t.string "invite_token"
+      t.datetime "invite_accepted_at"
+      t.datetime "requested_at"
+      t.date "expires_at"
+      t.index ["access_level"], name: "index_members_on_access_level", using: :btree
+      t.index ["invite_token"], name: "index_members_on_invite_token", unique: true, using: :btree
+      t.index ["requested_at"], name: "index_members_on_requested_at", using: :btree
+      t.index ["source_id", "source_type"], name: "index_members_on_source_id_and_source_type", using: :btree
+      t.index ["user_id"], name: "index_members_on_user_id", using: :btree
+    end
+    create_table "merge_request_diff_commits", id: false do |t|
+      t.datetime_with_timezone "authored_date"
+      t.datetime_with_timezone "committed_date"
+      t.integer "merge_request_diff_id", null: false
+      t.integer "relative_order", null: false
+      t.binary "sha", null: false
+      t.text "author_name"
+      t.text "author_email"
+      t.text "committer_name"
+      t.text "committer_email"
+      t.text "message"
+      t.index ["merge_request_diff_id", "relative_order"], name: "index_merge_request_diff_commits_on_mr_diff_id_and_order", unique: true, using: :btree
+      t.index ["sha"], name: "index_merge_request_diff_commits_on_sha", using: :btree
+    end
+    create_table "merge_request_diff_files", id: false do |t|
+      t.integer "merge_request_diff_id", null: false
+      t.integer "relative_order", null: false
+      t.boolean "new_file", null: false
+      t.boolean "renamed_file", null: false
+      t.boolean "deleted_file", null: false
+      t.boolean "too_large", null: false
+      t.string "a_mode", null: false
+      t.string "b_mode", null: false
+      t.text "new_path", null: false
+      t.text "old_path", null: false
+      t.text "diff", null: false
+      t.boolean "binary"
+      t.index ["merge_request_diff_id", "relative_order"], name: "index_merge_request_diff_files_on_mr_diff_id_and_order", unique: true, using: :btree
+    end
+    create_table "merge_request_diffs", id: :serial do |t|
+      t.string "state"
+      t.integer "merge_request_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "base_commit_sha"
+      t.string "real_size"
+      t.string "head_commit_sha"
+      t.string "start_commit_sha"
+      t.index ["merge_request_id", "id"], name: "index_merge_request_diffs_on_merge_request_id_and_id", using: :btree
+    end
+    create_table "merge_request_metrics", id: :serial do |t|
+      t.integer "merge_request_id", null: false
+      t.datetime "latest_build_started_at"
+      t.datetime "latest_build_finished_at"
+      t.datetime "first_deployed_to_production_at"
+      t.datetime "merged_at"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.integer "pipeline_id"
+      t.integer "merged_by_id"
+      t.integer "latest_closed_by_id"
+      t.datetime_with_timezone "latest_closed_at"
+      t.index ["first_deployed_to_production_at"], name: "index_merge_request_metrics_on_first_deployed_to_production_at", using: :btree
+      t.index ["merge_request_id"], name: "index_merge_request_metrics", using: :btree
+      t.index ["pipeline_id"], name: "index_merge_request_metrics_on_pipeline_id", using: :btree
+    end
+    create_table "merge_requests", id: :serial do |t|
+      t.string "target_branch", null: false
+      t.string "source_branch", null: false
+      t.integer "source_project_id"
+      t.integer "author_id"
+      t.integer "assignee_id"
+      t.string "title"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "milestone_id"
+      t.string "state", default: "opened", null: false
+      t.string "merge_status", default: "unchecked", null: false
+      t.integer "target_project_id", null: false
+      t.integer "iid"
+      t.text "description"
+      t.integer "updated_by_id"
+      t.text "merge_error"
+      t.text "merge_params"
+      t.boolean "merge_when_pipeline_succeeds", default: false, null: false
+      t.integer "merge_user_id"
+      t.string "merge_commit_sha"
+      t.string "rebase_commit_sha"
+      t.string "in_progress_merge_commit_sha"
+      t.integer "lock_version"
+      t.text "title_html"
+      t.text "description_html"
+      t.integer "time_estimate"
+      t.integer "cached_markdown_version"
+      t.datetime "last_edited_at"
+      t.integer "last_edited_by_id"
+      t.integer "head_pipeline_id"
+      t.string "merge_jid"
+      t.boolean "discussion_locked"
+      t.integer "latest_merge_request_diff_id"
+      t.index ["assignee_id"], name: "index_merge_requests_on_assignee_id", using: :btree
+      t.index ["author_id"], name: "index_merge_requests_on_author_id", using: :btree
+      t.index ["created_at"], name: "index_merge_requests_on_created_at", using: :btree
+      t.index ["description"], name: "index_merge_requests_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
+      t.index ["head_pipeline_id"], name: "index_merge_requests_on_head_pipeline_id", using: :btree
+      t.index ["latest_merge_request_diff_id"], name: "index_merge_requests_on_latest_merge_request_diff_id", using: :btree
+      t.index ["merge_user_id"], name: "index_merge_requests_on_merge_user_id", where: "(merge_user_id IS NOT NULL)", using: :btree
+      t.index ["milestone_id"], name: "index_merge_requests_on_milestone_id", using: :btree
+      t.index ["source_branch"], name: "index_merge_requests_on_source_branch", using: :btree
+      t.index ["source_project_id", "source_branch"], name: "index_merge_requests_on_source_project_and_branch_state_opened", where: "((state)::text = 'opened'::text)", using: :btree
+      t.index ["source_project_id", "source_branch"], name: "index_merge_requests_on_source_project_id_and_source_branch", using: :btree
+      t.index ["target_branch"], name: "index_merge_requests_on_target_branch", using: :btree
+      t.index ["target_project_id", "iid"], name: "index_merge_requests_on_target_project_id_and_iid", unique: true, using: :btree
+      t.index ["target_project_id", "merge_commit_sha", "id"], name: "index_merge_requests_on_tp_id_and_merge_commit_sha_and_id", using: :btree
+      t.index ["title"], name: "index_merge_requests_on_title", using: :btree
+      t.index ["title"], name: "index_merge_requests_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
+      t.index ["updated_by_id"], name: "index_merge_requests_on_updated_by_id", where: "(updated_by_id IS NOT NULL)", using: :btree
+    end
+    create_table "merge_requests_closing_issues", id: :serial do |t|
+      t.integer "merge_request_id", null: false
+      t.integer "issue_id", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["issue_id"], name: "index_merge_requests_closing_issues_on_issue_id", using: :btree
+      t.index ["merge_request_id"], name: "index_merge_requests_closing_issues_on_merge_request_id", using: :btree
+    end
+    create_table "milestones", id: :serial do |t|
+      t.string "title", null: false
+      t.integer "project_id"
+      t.text "description"
+      t.date "due_date"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "state"
+      t.integer "iid"
+      t.text "title_html"
+      t.text "description_html"
+      t.date "start_date"
+      t.integer "cached_markdown_version"
+      t.integer "group_id"
+      t.index ["description"], name: "index_milestones_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
+      t.index ["due_date"], name: "index_milestones_on_due_date", using: :btree
+      t.index ["group_id"], name: "index_milestones_on_group_id", using: :btree
+      t.index ["project_id", "iid"], name: "index_milestones_on_project_id_and_iid", unique: true, using: :btree
+      t.index ["title"], name: "index_milestones_on_title", using: :btree
+      t.index ["title"], name: "index_milestones_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
+    end
+    create_table "namespaces", id: :serial do |t|
+      t.string "name", null: false
+      t.string "path", null: false
+      t.integer "owner_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "type"
+      t.string "description", default: "", null: false
+      t.string "avatar"
+      t.boolean "share_with_group_lock", default: false
+      t.integer "visibility_level", default: 20, null: false
+      t.boolean "request_access_enabled", default: false, null: false
+      t.text "description_html"
+      t.boolean "lfs_enabled"
+      t.integer "parent_id"
+      t.boolean "require_two_factor_authentication", default: false, null: false
+      t.integer "two_factor_grace_period", default: 48, null: false
+      t.integer "cached_markdown_version"
+      t.string "runners_token"
+      t.index ["created_at"], name: "index_namespaces_on_created_at", using: :btree
+      t.index ["name", "parent_id"], name: "index_namespaces_on_name_and_parent_id", unique: true, using: :btree
+      t.index ["name"], name: "index_namespaces_on_name_trigram", using: :gin, opclasses: {"name"=>"gin_trgm_ops"}
+      t.index ["owner_id"], name: "index_namespaces_on_owner_id", using: :btree
+      t.index ["parent_id", "id"], name: "index_namespaces_on_parent_id_and_id", unique: true, using: :btree
+      t.index ["path"], name: "index_namespaces_on_path", using: :btree
+      t.index ["path"], name: "index_namespaces_on_path_trigram", using: :gin, opclasses: {"path"=>"gin_trgm_ops"}
+      t.index ["require_two_factor_authentication"], name: "index_namespaces_on_require_two_factor_authentication", using: :btree
+      t.index ["type"], name: "index_namespaces_on_type", using: :btree
+    end
+    create_table "notes", id: :serial do |t|
+      t.text "note"
+      t.string "noteable_type"
+      t.integer "author_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "project_id"
+      t.string "attachment"
+      t.string "line_code"
+      t.string "commit_id"
+      t.integer "noteable_id"
+      t.boolean "system", default: false, null: false
+      t.text "st_diff"
+      t.integer "updated_by_id"
+      t.string "type"
+      t.text "position"
+      t.text "original_position"
+      t.datetime "resolved_at"
+      t.integer "resolved_by_id"
+      t.string "discussion_id"
+      t.text "note_html"
+      t.integer "cached_markdown_version"
+      t.text "change_position"
+      t.boolean "resolved_by_push"
+      t.index ["author_id"], name: "index_notes_on_author_id", using: :btree
+      t.index ["commit_id"], name: "index_notes_on_commit_id", using: :btree
+      t.index ["created_at"], name: "index_notes_on_created_at", using: :btree
+      t.index ["discussion_id"], name: "index_notes_on_discussion_id", using: :btree
+      t.index ["line_code"], name: "index_notes_on_line_code", using: :btree
+      t.index ["note"], name: "index_notes_on_note_trigram", using: :gin, opclasses: {"note"=>"gin_trgm_ops"}
+      t.index ["noteable_id", "noteable_type"], name: "index_notes_on_noteable_id_and_noteable_type", using: :btree
+      t.index ["noteable_type"], name: "index_notes_on_noteable_type", using: :btree
+      t.index ["project_id", "noteable_type"], name: "index_notes_on_project_id_and_noteable_type", using: :btree
+      t.index ["updated_at"], name: "index_notes_on_updated_at", using: :btree
+    end
+    create_table "notification_settings", id: :serial do |t|
+      t.integer "user_id", null: false
+      t.string "source_type"
+      t.integer "source_id"
+      t.integer "level", default: 0, null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.boolean "new_note"
+      t.boolean "new_issue"
+      t.boolean "reopen_issue"
+      t.boolean "close_issue"
+      t.boolean "reassign_issue"
+      t.boolean "new_merge_request"
+      t.boolean "reopen_merge_request"
+      t.boolean "close_merge_request"
+      t.boolean "reassign_merge_request"
+      t.boolean "merge_merge_request"
+      t.boolean "failed_pipeline"
+      t.boolean "success_pipeline"
+      t.index ["source_id", "source_type"], name: "index_notification_settings_on_source_id_and_source_type", using: :btree
+      t.index ["user_id", "source_id", "source_type"], name: "index_notifications_on_user_id_and_source_id_and_source_type", unique: true, using: :btree
+      t.index ["user_id"], name: "index_notification_settings_on_user_id", using: :btree
+    end
+    create_table "oauth_access_grants", id: :serial do |t|
+      t.integer "resource_owner_id", null: false
+      t.integer "application_id", null: false
+      t.string "token", null: false
+      t.integer "expires_in", null: false
+      t.text "redirect_uri", null: false
+      t.datetime "created_at", null: false
+      t.datetime "revoked_at"
+      t.string "scopes"
+      t.index ["token"], name: "index_oauth_access_grants_on_token", unique: true, using: :btree
+    end
+    create_table "oauth_access_tokens", id: :serial do |t|
+      t.integer "resource_owner_id"
+      t.integer "application_id"
+      t.string "token", null: false
+      t.string "refresh_token"
+      t.integer "expires_in"
+      t.datetime "revoked_at"
+      t.datetime "created_at", null: false
+      t.string "scopes"
+      t.index ["refresh_token"], name: "index_oauth_access_tokens_on_refresh_token", unique: true, using: :btree
+      t.index ["resource_owner_id"], name: "index_oauth_access_tokens_on_resource_owner_id", using: :btree
+      t.index ["token"], name: "index_oauth_access_tokens_on_token", unique: true, using: :btree
+    end
+    create_table "oauth_applications", id: :serial do |t|
+      t.string "name", null: false
+      t.string "uid", null: false
+      t.string "secret", null: false
+      t.text "redirect_uri", null: false
+      t.string "scopes", default: "", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "owner_id"
+      t.string "owner_type"
+      t.boolean "trusted", default: false, null: false
+      t.index ["owner_id", "owner_type"], name: "index_oauth_applications_on_owner_id_and_owner_type", using: :btree
+      t.index ["uid"], name: "index_oauth_applications_on_uid", unique: true, using: :btree
+    end
+    create_table "oauth_openid_requests", id: :serial do |t|
+      t.integer "access_grant_id", null: false
+      t.string "nonce", null: false
+    end
+    create_table "pages_domains", id: :serial do |t|
+      t.integer "project_id"
+      t.text "certificate"
+      t.text "encrypted_key"
+      t.string "encrypted_key_iv"
+      t.string "encrypted_key_salt"
+      t.string "domain"
+      t.index ["domain"], name: "index_pages_domains_on_domain", unique: true, using: :btree
+      t.index ["project_id"], name: "index_pages_domains_on_project_id", using: :btree
+    end
+    create_table "personal_access_tokens", id: :serial do |t|
+      t.integer "user_id", null: false
+      t.string "token", null: false
+      t.string "name", null: false
+      t.boolean "revoked", default: false
+      t.date "expires_at"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.string "scopes", default: "--- []\n", null: false
+      t.boolean "impersonation", default: false, null: false
+      t.index ["token"], name: "index_personal_access_tokens_on_token", unique: true, using: :btree
+      t.index ["user_id"], name: "index_personal_access_tokens_on_user_id", using: :btree
+    end
+    create_table "project_authorizations", id: false do |t|
+      t.integer "user_id"
+      t.integer "project_id"
+      t.integer "access_level"
+      t.index ["project_id"], name: "index_project_authorizations_on_project_id", using: :btree
+      t.index ["user_id", "project_id", "access_level"], name: "index_project_authorizations_on_user_id_project_id_access_level", unique: true, using: :btree
+    end
+    create_table "project_auto_devops", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.boolean "enabled"
+      t.string "domain"
+      t.index ["project_id"], name: "index_project_auto_devops_on_project_id", unique: true, using: :btree
+    end
+    create_table "project_custom_attributes", id: :serial do |t|
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "project_id", null: false
+      t.string "key", null: false
+      t.string "value", null: false
+      t.index ["key", "value"], name: "index_project_custom_attributes_on_key_and_value", using: :btree
+      t.index ["project_id", "key"], name: "index_project_custom_attributes_on_project_id_and_key", unique: true, using: :btree
+    end
+    create_table "project_features", id: :serial do |t|
+      t.integer "project_id"
+      t.integer "merge_requests_access_level"
+      t.integer "issues_access_level"
+      t.integer "wiki_access_level"
+      t.integer "snippets_access_level"
+      t.integer "builds_access_level"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "repository_access_level", default: 20, null: false
+      t.index ["project_id"], name: "index_project_features_on_project_id", using: :btree
+    end
+    create_table "project_group_links", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "group_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "group_access", default: 30, null: false
+      t.date "expires_at"
+      t.index ["group_id"], name: "index_project_group_links_on_group_id", using: :btree
+      t.index ["project_id"], name: "index_project_group_links_on_project_id", using: :btree
+    end
+    create_table "project_import_data", id: :serial do |t|
+      t.integer "project_id"
+      t.text "data"
+      t.text "encrypted_credentials"
+      t.string "encrypted_credentials_iv"
+      t.string "encrypted_credentials_salt"
+      t.index ["project_id"], name: "index_project_import_data_on_project_id", using: :btree
+    end
+    create_table "project_statistics", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "namespace_id", null: false
+      t.bigint "commit_count", default: 0, null: false
+      t.bigint "storage_size", default: 0, null: false
+      t.bigint "repository_size", default: 0, null: false
+      t.bigint "lfs_objects_size", default: 0, null: false
+      t.bigint "build_artifacts_size", default: 0, null: false
+      t.index ["namespace_id"], name: "index_project_statistics_on_namespace_id", using: :btree
+      t.index ["project_id"], name: "index_project_statistics_on_project_id", unique: true, using: :btree
+    end
+    create_table "projects", id: :serial do |t|
+      t.string "name"
+      t.string "path"
+      t.text "description"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "creator_id"
+      t.integer "namespace_id"
+      t.datetime "last_activity_at"
+      t.string "import_url"
+      t.integer "visibility_level", default: 0, null: false
+      t.boolean "archived", default: false, null: false
+      t.string "avatar"
+      t.string "import_status"
+      t.integer "star_count", default: 0, null: false
+      t.boolean "merge_requests_rebase_enabled", default: false, null: false
+      t.string "import_type"
+      t.string "import_source"
+      t.boolean "merge_requests_ff_only_enabled", default: false, null: false
+      t.text "import_error"
+      t.integer "ci_id"
+      t.boolean "shared_runners_enabled", default: true, null: false
+      t.string "runners_token"
+      t.string "build_coverage_regex"
+      t.boolean "build_allow_git_fetch", default: true, null: false
+      t.integer "build_timeout", default: 3600, null: false
+      t.boolean "pending_delete", default: false
+      t.boolean "public_builds", default: true, null: false
+      t.boolean "last_repository_check_failed"
+      t.datetime "last_repository_check_at"
+      t.boolean "container_registry_enabled"
+      t.boolean "only_allow_merge_if_pipeline_succeeds", default: false, null: false
+      t.boolean "has_external_issue_tracker"
+      t.string "repository_storage", default: "default", null: false
+      t.boolean "repository_read_only"
+      t.boolean "request_access_enabled", default: false, null: false
+      t.boolean "has_external_wiki"
+      t.string "ci_config_path"
+      t.boolean "lfs_enabled"
+      t.text "description_html"
+      t.boolean "only_allow_merge_if_all_discussions_are_resolved"
+      t.boolean "printing_merge_request_link_enabled", default: true, null: false
+      t.integer "auto_cancel_pending_pipelines", default: 1, null: false
+      t.string "import_jid"
+      t.integer "cached_markdown_version"
+      t.text "delete_error"
+      t.datetime "last_repository_updated_at"
+      t.integer "storage_version", limit: 2
+      t.boolean "resolve_outdated_diff_discussions"
+      t.string "external_authorization_classification_label"
+      t.integer "jobs_cache_index"
+      t.index ["ci_id"], name: "index_projects_on_ci_id", using: :btree
+      t.index ["created_at"], name: "index_projects_on_created_at", using: :btree
+      t.index ["creator_id"], name: "index_projects_on_creator_id", using: :btree
+      t.index ["description"], name: "index_projects_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
+      t.index ["last_activity_at"], name: "index_projects_on_last_activity_at", using: :btree
+      t.index ["last_repository_check_failed"], name: "index_projects_on_last_repository_check_failed", using: :btree
+      t.index ["last_repository_updated_at"], name: "index_projects_on_last_repository_updated_at", using: :btree
+      t.index ["name"], name: "index_projects_on_name_trigram", using: :gin, opclasses: {"name"=>"gin_trgm_ops"}
+      t.index ["namespace_id"], name: "index_projects_on_namespace_id", using: :btree
+      t.index ["path"], name: "index_projects_on_path", using: :btree
+      t.index ["path"], name: "index_projects_on_path_trigram", using: :gin, opclasses: {"path"=>"gin_trgm_ops"}
+      t.index ["pending_delete"], name: "index_projects_on_pending_delete", using: :btree
+      t.index ["repository_storage"], name: "index_projects_on_repository_storage", using: :btree
+      t.index ["runners_token"], name: "index_projects_on_runners_token", using: :btree
+      t.index ["star_count"], name: "index_projects_on_star_count", using: :btree
+      t.index ["visibility_level"], name: "index_projects_on_visibility_level", using: :btree
+    end
+    create_table "protected_branch_merge_access_levels", id: :serial do |t|
+      t.integer "protected_branch_id", null: false
+      t.integer "access_level", default: 40, null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["protected_branch_id"], name: "index_protected_branch_merge_access", using: :btree
+    end
+    create_table "protected_branch_push_access_levels", id: :serial do |t|
+      t.integer "protected_branch_id", null: false
+      t.integer "access_level", default: 40, null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["protected_branch_id"], name: "index_protected_branch_push_access", using: :btree
+    end
+    create_table "protected_branches", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.string "name", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["project_id"], name: "index_protected_branches_on_project_id", using: :btree
+    end
+    create_table "protected_tag_create_access_levels", id: :serial do |t|
+      t.integer "protected_tag_id", null: false
+      t.integer "access_level", default: 40
+      t.integer "user_id"
+      t.integer "group_id"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["protected_tag_id"], name: "index_protected_tag_create_access", using: :btree
+      t.index ["user_id"], name: "index_protected_tag_create_access_levels_on_user_id", using: :btree
+    end
+    create_table "protected_tags", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.string "name", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["project_id"], name: "index_protected_tags_on_project_id", using: :btree
+    end
+    create_table "push_event_payloads", id: false do |t|
+      t.bigint "commit_count", null: false
+      t.integer "event_id", null: false
+      t.integer "action", limit: 2, null: false
+      t.integer "ref_type", limit: 2, null: false
+      t.binary "commit_from"
+      t.binary "commit_to"
+      t.text "ref"
+      t.string "commit_title", limit: 70
+      t.index ["event_id"], name: "index_push_event_payloads_on_event_id", unique: true, using: :btree
+    end
+    create_table "redirect_routes", id: :serial do |t|
+      t.integer "source_id", null: false
+      t.string "source_type", null: false
+      t.string "path", null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.boolean "permanent"
+      t.index ["path"], name: "index_redirect_routes_on_path", unique: true, using: :btree
+      t.index ["path"], name: "index_redirect_routes_on_path_text_pattern_ops", using: :btree, opclasses: {"path"=>"varchar_pattern_ops"}
+      t.index ["permanent"], name: "index_redirect_routes_on_permanent", using: :btree
+      t.index ["source_type", "source_id"], name: "index_redirect_routes_on_source_type_and_source_id", using: :btree
+    end
+    create_table "releases", id: :serial do |t|
+      t.string "tag"
+      t.text "description"
+      t.integer "project_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.text "description_html"
+      t.integer "cached_markdown_version"
+      t.index ["project_id", "tag"], name: "index_releases_on_project_id_and_tag", using: :btree
+      t.index ["project_id"], name: "index_releases_on_project_id", using: :btree
+    end
+    create_table "routes", id: :serial do |t|
+      t.integer "source_id", null: false
+      t.string "source_type", null: false
+      t.string "path", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "name"
+      t.index ["path"], name: "index_routes_on_path", unique: true, using: :btree
+      t.index ["path"], name: "index_routes_on_path_text_pattern_ops", using: :btree, opclasses: {"path"=>"varchar_pattern_ops"}
+      t.index ["source_type", "source_id"], name: "index_routes_on_source_type_and_source_id", unique: true, using: :btree
+    end
+    create_table "sent_notifications", id: :serial do |t|
+      t.integer "project_id"
+      t.string "noteable_type"
+      t.integer "noteable_id"
+      t.integer "recipient_id"
+      t.string "commit_id"
+      t.string "reply_key", null: false
+      t.string "line_code"
+      t.string "note_type"
+      t.text "position"
+      t.string "in_reply_to_discussion_id"
+      t.index ["reply_key"], name: "index_sent_notifications_on_reply_key", unique: true, using: :btree
+    end
+    create_table "services", id: :serial do |t|
+      t.string "type"
+      t.string "title"
+      t.integer "project_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.boolean "active", default: false, null: false
+      t.text "properties"
+      t.boolean "template", default: false
+      t.boolean "push_events", default: true
+      t.boolean "issues_events", default: true
+      t.boolean "merge_requests_events", default: true
+      t.boolean "tag_push_events", default: true
+      t.boolean "note_events", default: true, null: false
+      t.string "category", default: "common", null: false
+      t.boolean "default", default: false
+      t.boolean "wiki_page_events", default: true
+      t.boolean "pipeline_events", default: false, null: false
+      t.boolean "confidential_issues_events", default: true, null: false
+      t.boolean "commit_events", default: true, null: false
+      t.boolean "job_events", default: false, null: false
+      t.index ["project_id"], name: "index_services_on_project_id", using: :btree
+      t.index ["template"], name: "index_services_on_template", using: :btree
+    end
+    create_table "snippets", id: :serial do |t|
+      t.string "title"
+      t.text "content"
+      t.integer "author_id", null: false
+      t.integer "project_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "file_name"
+      t.string "type"
+      t.integer "visibility_level", default: 0, null: false
+      t.text "title_html"
+      t.text "content_html"
+      t.integer "cached_markdown_version"
+      t.text "description"
+      t.text "description_html"
+      t.index ["author_id"], name: "index_snippets_on_author_id", using: :btree
+      t.index ["file_name"], name: "index_snippets_on_file_name_trigram", using: :gin, opclasses: {"file_name"=>"gin_trgm_ops"}
+      t.index ["project_id"], name: "index_snippets_on_project_id", using: :btree
+      t.index ["title"], name: "index_snippets_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
+      t.index ["updated_at"], name: "index_snippets_on_updated_at", using: :btree
+      t.index ["visibility_level"], name: "index_snippets_on_visibility_level", using: :btree
+    end
+    create_table "spam_logs", id: :serial do |t|
+      t.integer "user_id"
+      t.string "source_ip"
+      t.string "user_agent"
+      t.boolean "via_api"
+      t.string "noteable_type"
+      t.string "title"
+      t.text "description"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.boolean "submitted_as_ham", default: false, null: false
+      t.boolean "recaptcha_verified", default: false, null: false
+    end
+    create_table "subscriptions", id: :serial do |t|
+      t.integer "user_id"
+      t.string "subscribable_type"
+      t.integer "subscribable_id"
+      t.boolean "subscribed"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "project_id"
+      t.index ["subscribable_id", "subscribable_type", "user_id", "project_id"], name: "index_subscriptions_on_subscribable_and_user_id_and_project_id", unique: true, using: :btree
+    end
+    create_table "system_note_metadata", id: :serial do |t|
+      t.integer "note_id", null: false
+      t.integer "commit_count"
+      t.string "action"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["note_id"], name: "index_system_note_metadata_on_note_id", unique: true, using: :btree
+    end
+    create_table "taggings", id: :serial do |t|
+      t.integer "tag_id"
+      t.integer "taggable_id"
+      t.string "taggable_type"
+      t.integer "tagger_id"
+      t.string "tagger_type"
+      t.string "context"
+      t.datetime "created_at"
+      t.index ["tag_id", "taggable_id", "taggable_type", "context", "tagger_id", "tagger_type"], name: "taggings_idx", unique: true, using: :btree
+      t.index ["taggable_id", "taggable_type", "context"], name: "index_taggings_on_taggable_id_and_taggable_type_and_context", using: :btree
+    end
+    create_table "tags", id: :serial do |t|
+      t.string "name"
+      t.integer "taggings_count", default: 0
+      t.index ["name"], name: "index_tags_on_name", unique: true, using: :btree
+    end
+    create_table "timelogs", id: :serial do |t|
+      t.integer "time_spent", null: false
+      t.integer "user_id"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.integer "issue_id"
+      t.integer "merge_request_id"
+      t.datetime_with_timezone "spent_at"
+      t.index ["issue_id"], name: "index_timelogs_on_issue_id", using: :btree
+      t.index ["merge_request_id"], name: "index_timelogs_on_merge_request_id", using: :btree
+      t.index ["user_id"], name: "index_timelogs_on_user_id", using: :btree
+    end
+    create_table "todos", id: :serial do |t|
+      t.integer "user_id", null: false
+      t.integer "project_id", null: false
+      t.string "target_type", null: false
+      t.integer "target_id"
+      t.integer "author_id"
+      t.integer "action", null: false
+      t.string "state", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.integer "note_id"
+      t.string "commit_id"
+      t.index ["author_id"], name: "index_todos_on_author_id", using: :btree
+      t.index ["commit_id"], name: "index_todos_on_commit_id", using: :btree
+      t.index ["note_id"], name: "index_todos_on_note_id", using: :btree
+      t.index ["project_id"], name: "index_todos_on_project_id", using: :btree
+      t.index ["target_type", "target_id"], name: "index_todos_on_target_type_and_target_id", using: :btree
+      t.index ["user_id"], name: "index_todos_on_user_id", using: :btree
+    end
+    create_table "trending_projects", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.index ["project_id"], name: "index_trending_projects_on_project_id", using: :btree
+    end
+    create_table "u2f_registrations", id: :serial do |t|
+      t.text "certificate"
+      t.string "key_handle"
+      t.string "public_key"
+      t.integer "counter"
+      t.integer "user_id"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.string "name"
+      t.index ["key_handle"], name: "index_u2f_registrations_on_key_handle", using: :btree
+      t.index ["user_id"], name: "index_u2f_registrations_on_user_id", using: :btree
+    end
+    create_table "uploads", id: :serial do |t|
+      t.bigint "size", null: false
+      t.string "path", limit: 511, null: false
+      t.string "checksum", limit: 64
+      t.string "model_type"
+      t.integer "model_id"
+      t.string "uploader", null: false
+      t.datetime "created_at", null: false
+      t.integer "store"
+      t.index ["checksum"], name: "index_uploads_on_checksum", using: :btree
+      t.index ["model_id", "model_type"], name: "index_uploads_on_model_id_and_model_type", using: :btree
+      t.index ["path"], name: "index_uploads_on_path", using: :btree
+    end
+    create_table "user_agent_details", id: :serial do |t|
+      t.string "user_agent", null: false
+      t.string "ip_address", null: false
+      t.integer "subject_id", null: false
+      t.string "subject_type", null: false
+      t.boolean "submitted", default: false, null: false
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["subject_id", "subject_type"], name: "index_user_agent_details_on_subject_id_and_subject_type", using: :btree
+    end
+    create_table "user_custom_attributes", id: :serial do |t|
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "user_id", null: false
+      t.string "key", null: false
+      t.string "value", null: false
+      t.index ["key", "value"], name: "index_user_custom_attributes_on_key_and_value", using: :btree
+      t.index ["user_id", "key"], name: "index_user_custom_attributes_on_user_id_and_key", unique: true, using: :btree
+    end
+    create_table "user_synced_attributes_metadata", id: :serial do |t|
+      t.boolean "name_synced", default: false
+      t.boolean "email_synced", default: false
+      t.boolean "location_synced", default: false
+      t.integer "user_id", null: false
+      t.string "provider"
+      t.index ["user_id"], name: "index_user_synced_attributes_metadata_on_user_id", unique: true, using: :btree
+    end
+    create_table "users", id: :serial do |t|
+      t.string "email", default: "", null: false
+      t.string "encrypted_password", default: "", null: false
+      t.string "reset_password_token"
+      t.datetime "reset_password_sent_at"
+      t.datetime "remember_created_at"
+      t.integer "sign_in_count", default: 0
+      t.datetime "current_sign_in_at"
+      t.datetime "last_sign_in_at"
+      t.string "current_sign_in_ip"
+      t.string "last_sign_in_ip"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "name"
+      t.boolean "admin", default: false, null: false
+      t.integer "projects_limit", null: false
+      t.string "skype", default: "", null: false
+      t.string "linkedin", default: "", null: false
+      t.string "twitter", default: "", null: false
+      t.string "bio"
+      t.integer "failed_attempts", default: 0
+      t.datetime "locked_at"
+      t.string "username"
+      t.boolean "can_create_group", default: true, null: false
+      t.boolean "can_create_team", default: true, null: false
+      t.string "state"
+      t.integer "color_scheme_id", default: 1, null: false
+      t.datetime "password_expires_at"
+      t.integer "created_by_id"
+      t.datetime "last_credential_check_at"
+      t.string "avatar"
+      t.string "confirmation_token"
+      t.datetime "confirmed_at"
+      t.datetime "confirmation_sent_at"
+      t.string "unconfirmed_email"
+      t.boolean "hide_no_ssh_key", default: false
+      t.string "website_url", default: "", null: false
+      t.string "notification_email"
+      t.boolean "hide_no_password", default: false
+      t.boolean "password_automatically_set", default: false
+      t.string "location"
+      t.string "encrypted_otp_secret"
+      t.string "encrypted_otp_secret_iv"
+      t.string "encrypted_otp_secret_salt"
+      t.boolean "otp_required_for_login", default: false, null: false
+      t.text "otp_backup_codes"
+      t.string "public_email", default: "", null: false
+      t.integer "dashboard", default: 0
+      t.integer "project_view", default: 0
+      t.integer "consumed_timestep"
+      t.integer "layout", default: 0
+      t.boolean "hide_project_limit", default: false
+      t.string "unlock_token"
+      t.datetime "otp_grace_period_started_at"
+      t.boolean "external", default: false
+      t.string "incoming_email_token"
+      t.string "organization"
+      t.boolean "require_two_factor_authentication_from_group", default: false, null: false
+      t.integer "two_factor_grace_period", default: 48, null: false
+      t.boolean "ghost"
+      t.date "last_activity_on"
+      t.boolean "notified_of_own_activity"
+      t.string "preferred_language"
+      t.string "rss_token"
+      t.integer "theme_id", limit: 2
+      t.index ["admin"], name: "index_users_on_admin", using: :btree
+      t.index ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true, using: :btree
+      t.index ["created_at"], name: "index_users_on_created_at", using: :btree
+      t.index ["email"], name: "index_users_on_email", unique: true, using: :btree
+      t.index ["email"], name: "index_users_on_email_trigram", using: :gin, opclasses: {"email"=>"gin_trgm_ops"}
+      t.index ["ghost"], name: "index_users_on_ghost", using: :btree
+      t.index ["incoming_email_token"], name: "index_users_on_incoming_email_token", using: :btree
+      t.index ["name"], name: "index_users_on_name", using: :btree
+      t.index ["name"], name: "index_users_on_name_trigram", using: :gin, opclasses: {"name"=>"gin_trgm_ops"}
+      t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
+      t.index ["rss_token"], name: "index_users_on_rss_token", using: :btree
+      t.index ["state"], name: "index_users_on_state", using: :btree
+      t.index ["username"], name: "index_users_on_username", using: :btree
+      t.index ["username"], name: "index_users_on_username_trigram", using: :gin, opclasses: {"username"=>"gin_trgm_ops"}
+    end
+    create_table "users_star_projects", id: :serial do |t|
+      t.integer "project_id", null: false
+      t.integer "user_id", null: false
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.index ["project_id"], name: "index_users_star_projects_on_project_id", using: :btree
+      t.index ["user_id", "project_id"], name: "index_users_star_projects_on_user_id_and_project_id", unique: true, using: :btree
+    end
+    create_table "web_hook_logs", id: :serial do |t|
+      t.integer "web_hook_id", null: false
+      t.string "trigger"
+      t.string "url"
+      t.text "request_headers"
+      t.text "request_data"
+      t.text "response_headers"
+      t.text "response_body"
+      t.string "response_status"
+      t.float "execution_duration"
+      t.string "internal_error_message"
+      t.datetime "created_at", null: false
+      t.datetime "updated_at", null: false
+      t.index ["web_hook_id"], name: "index_web_hook_logs_on_web_hook_id", using: :btree
+    end
+    create_table "web_hooks", id: :serial do |t|
+      t.string "url", limit: 2000
+      t.integer "project_id"
+      t.datetime "created_at"
+      t.datetime "updated_at"
+      t.string "type", default: "ProjectHook"
+      t.integer "service_id"
+      t.boolean "push_events", default: true, null: false
+      t.boolean "issues_events", default: false, null: false
+      t.boolean "merge_requests_events", default: false, null: false
+      t.boolean "tag_push_events", default: false
+      t.boolean "note_events", default: false, null: false
+      t.boolean "enable_ssl_verification", default: true
+      t.boolean "wiki_page_events", default: false, null: false
+      t.string "token"
+      t.boolean "pipeline_events", default: false, null: false
+      t.boolean "confidential_issues_events", default: false, null: false
+      t.boolean "repository_update_events", default: false, null: false
+      t.boolean "job_events", default: false, null: false
+      t.boolean "confidential_note_events"
+      t.index ["project_id"], name: "index_web_hooks_on_project_id", using: :btree
+      t.index ["type"], name: "index_web_hooks_on_type", using: :btree
+    end
+    add_foreign_key "boards", "projects", name: "fk_f15266b5f9", on_delete: :cascade
+    add_foreign_key "chat_teams", "namespaces", on_delete: :cascade
+    add_foreign_key "ci_build_trace_section_names", "projects", on_delete: :cascade
+    add_foreign_key "ci_build_trace_sections", "ci_build_trace_section_names", column: "section_name_id", name: "fk_264e112c66", on_delete: :cascade
+    add_foreign_key "ci_build_trace_sections", "ci_builds", column: "build_id", name: "fk_4ebe41f502", on_delete: :cascade
+    add_foreign_key "ci_build_trace_sections", "projects", on_delete: :cascade
+    add_foreign_key "ci_builds", "ci_pipelines", column: "auto_canceled_by_id", name: "fk_a2141b1522", on_delete: :nullify
+    add_foreign_key "ci_builds", "ci_stages", column: "stage_id", name: "fk_3a9eaa254d", on_delete: :cascade
+    add_foreign_key "ci_builds", "projects", name: "fk_befce0568a", on_delete: :cascade
+    add_foreign_key "ci_group_variables", "namespaces", column: "group_id", name: "fk_33ae4d58d8", on_delete: :cascade
+    add_foreign_key "ci_job_artifacts", "ci_builds", column: "job_id", on_delete: :cascade
+    add_foreign_key "ci_job_artifacts", "projects", on_delete: :cascade
+    add_foreign_key "ci_pipeline_schedule_variables", "ci_pipeline_schedules", column: "pipeline_schedule_id", name: "fk_41c35fda51", on_delete: :cascade
+    add_foreign_key "ci_pipeline_schedules", "projects", name: "fk_8ead60fcc4", on_delete: :cascade
+    add_foreign_key "ci_pipeline_schedules", "users", column: "owner_id", name: "fk_9ea99f58d2", on_delete: :nullify
+    add_foreign_key "ci_pipeline_variables", "ci_pipelines", column: "pipeline_id", name: "fk_f29c5f4380", on_delete: :cascade
+    add_foreign_key "ci_pipelines", "ci_pipeline_schedules", column: "pipeline_schedule_id", name: "fk_3d34ab2e06", on_delete: :nullify
+    add_foreign_key "ci_pipelines", "ci_pipelines", column: "auto_canceled_by_id", name: "fk_262d4c2d19", on_delete: :nullify
+    add_foreign_key "ci_pipelines", "projects", name: "fk_86635dbd80", on_delete: :cascade
+    add_foreign_key "ci_runner_namespaces", "ci_runners", column: "runner_id", on_delete: :cascade
+    add_foreign_key "ci_runner_namespaces", "namespaces", on_delete: :cascade
+    add_foreign_key "ci_runner_projects", "projects", name: "fk_4478a6f1e4", on_delete: :cascade
+    add_foreign_key "ci_stages", "ci_pipelines", column: "pipeline_id", name: "fk_fb57e6cc56", on_delete: :cascade
+    add_foreign_key "ci_stages", "projects", name: "fk_2360681d1d", on_delete: :cascade
+    add_foreign_key "ci_trigger_requests", "ci_triggers", column: "trigger_id", name: "fk_b8ec8b7245", on_delete: :cascade
+    add_foreign_key "ci_triggers", "projects", name: "fk_e3e63f966e", on_delete: :cascade
+    add_foreign_key "ci_triggers", "users", column: "owner_id", name: "fk_e8e10d1964", on_delete: :cascade
+    add_foreign_key "ci_variables", "projects", name: "fk_ada5eb64b3", on_delete: :cascade
+    add_foreign_key "cluster_platforms_kubernetes", "clusters", on_delete: :cascade
+    add_foreign_key "cluster_projects", "clusters", on_delete: :cascade
+    add_foreign_key "cluster_projects", "projects", on_delete: :cascade
+    add_foreign_key "cluster_providers_gcp", "clusters", on_delete: :cascade
+    add_foreign_key "clusters", "users", on_delete: :nullify
+    add_foreign_key "clusters_applications_helm", "clusters", on_delete: :cascade
+    add_foreign_key "clusters_applications_ingress", "clusters", on_delete: :cascade
+    add_foreign_key "clusters_applications_prometheus", "clusters", on_delete: :cascade
+    add_foreign_key "container_repositories", "projects"
+    add_foreign_key "deploy_keys_projects", "projects", name: "fk_58a901ca7e", on_delete: :cascade
+    add_foreign_key "deployments", "projects", name: "fk_b9a3851b82", on_delete: :cascade
+    add_foreign_key "environments", "projects", name: "fk_d1c8c1da6a", on_delete: :cascade
+    add_foreign_key "events", "projects", on_delete: :cascade
+    add_foreign_key "events", "users", column: "author_id", name: "fk_edfd187b6f", on_delete: :cascade
+    add_foreign_key "fork_network_members", "fork_networks", on_delete: :cascade
+    add_foreign_key "fork_network_members", "projects", column: "forked_from_project_id", name: "fk_b01280dae4", on_delete: :nullify
+    add_foreign_key "fork_network_members", "projects", on_delete: :cascade
+    add_foreign_key "fork_networks", "projects", column: "root_project_id", name: "fk_e7b436b2b5", on_delete: :nullify
+    add_foreign_key "forked_project_links", "projects", column: "forked_to_project_id", name: "fk_434510edb0", on_delete: :cascade
+    add_foreign_key "gcp_clusters", "projects", on_delete: :cascade
+    add_foreign_key "gcp_clusters", "services", on_delete: :nullify
+    add_foreign_key "gcp_clusters", "users", on_delete: :nullify
+    add_foreign_key "gpg_key_subkeys", "gpg_keys", on_delete: :cascade
+    add_foreign_key "gpg_keys", "users", on_delete: :cascade
+    add_foreign_key "gpg_signatures", "gpg_key_subkeys", on_delete: :nullify
+    add_foreign_key "gpg_signatures", "gpg_keys", on_delete: :nullify
+    add_foreign_key "gpg_signatures", "projects", on_delete: :cascade
+    add_foreign_key "group_custom_attributes", "namespaces", column: "group_id", on_delete: :cascade
+    add_foreign_key "issue_assignees", "issues", name: "fk_b7d881734a", on_delete: :cascade
+    add_foreign_key "issue_assignees", "users", name: "fk_5e0c8d9154", on_delete: :cascade
+    add_foreign_key "issue_metrics", "issues", on_delete: :cascade
+    add_foreign_key "issues", "issues", column: "moved_to_id", name: "fk_a194299be1", on_delete: :nullify
+    add_foreign_key "issues", "milestones", name: "fk_96b1dd429c", on_delete: :nullify
+    add_foreign_key "issues", "projects", name: "fk_899c8f3231", on_delete: :cascade
+    add_foreign_key "issues", "users", column: "author_id", name: "fk_05f1e72feb", on_delete: :nullify
+    add_foreign_key "issues", "users", column: "updated_by_id", name: "fk_ffed080f01", on_delete: :nullify
+    add_foreign_key "label_priorities", "labels", on_delete: :cascade
+    add_foreign_key "label_priorities", "projects", on_delete: :cascade
+    add_foreign_key "labels", "namespaces", column: "group_id", on_delete: :cascade
+    add_foreign_key "labels", "projects", name: "fk_7de4989a69", on_delete: :cascade
+    add_foreign_key "lists", "boards", name: "fk_0d3f677137", on_delete: :cascade
+    add_foreign_key "lists", "labels", name: "fk_7a5553d60f", on_delete: :cascade
+    add_foreign_key "members", "users", name: "fk_2e88fb7ce9", on_delete: :cascade
+    add_foreign_key "merge_request_diff_commits", "merge_request_diffs", on_delete: :cascade
+    add_foreign_key "merge_request_diff_files", "merge_request_diffs", on_delete: :cascade
+    add_foreign_key "merge_request_diffs", "merge_requests", name: "fk_8483f3258f", on_delete: :cascade
+    add_foreign_key "merge_request_metrics", "ci_pipelines", column: "pipeline_id", on_delete: :cascade
+    add_foreign_key "merge_request_metrics", "merge_requests", on_delete: :cascade
+    add_foreign_key "merge_request_metrics", "users", column: "latest_closed_by_id", name: "fk_ae440388cc", on_delete: :nullify
+    add_foreign_key "merge_request_metrics", "users", column: "merged_by_id", name: "fk_7f28d925f3", on_delete: :nullify
+    add_foreign_key "merge_requests", "ci_pipelines", column: "head_pipeline_id", name: "fk_fd82eae0b9", on_delete: :nullify
+    add_foreign_key "merge_requests", "merge_request_diffs", column: "latest_merge_request_diff_id", name: "fk_06067f5644", on_delete: :nullify
+    add_foreign_key "merge_requests", "milestones", name: "fk_6a5165a692", on_delete: :nullify
+    add_foreign_key "merge_requests", "projects", column: "source_project_id", name: "fk_3308fe130c", on_delete: :nullify
+    add_foreign_key "merge_requests", "projects", column: "target_project_id", name: "fk_a6963e8447", on_delete: :cascade
+    add_foreign_key "merge_requests", "users", column: "assignee_id", name: "fk_6149611a04", on_delete: :nullify
+    add_foreign_key "merge_requests", "users", column: "author_id", name: "fk_e719a85f8a", on_delete: :nullify
+    add_foreign_key "merge_requests", "users", column: "merge_user_id", name: "fk_ad525e1f87", on_delete: :nullify
+    add_foreign_key "merge_requests", "users", column: "updated_by_id", name: "fk_641731faff", on_delete: :nullify
+    add_foreign_key "merge_requests_closing_issues", "issues", on_delete: :cascade
+    add_foreign_key "merge_requests_closing_issues", "merge_requests", on_delete: :cascade
+    add_foreign_key "milestones", "namespaces", column: "group_id", name: "fk_95650a40d4", on_delete: :cascade
+    add_foreign_key "milestones", "projects", name: "fk_9bd0a0c791", on_delete: :cascade
+    add_foreign_key "notes", "projects", name: "fk_99e097b079", on_delete: :cascade
+    add_foreign_key "oauth_openid_requests", "oauth_access_grants", column: "access_grant_id", name: "fk_oauth_openid_requests_oauth_access_grants_access_grant_id"
+    add_foreign_key "pages_domains", "projects", name: "fk_ea2f6dfc6f", on_delete: :cascade
+    add_foreign_key "personal_access_tokens", "users"
+    add_foreign_key "project_authorizations", "projects", on_delete: :cascade
+    add_foreign_key "project_authorizations", "users", on_delete: :cascade
+    add_foreign_key "project_auto_devops", "projects", on_delete: :cascade
+    add_foreign_key "project_custom_attributes", "projects", on_delete: :cascade
+    add_foreign_key "project_features", "projects", name: "fk_18513d9b92", on_delete: :cascade
+    add_foreign_key "project_group_links", "projects", name: "fk_daa8cee94c", on_delete: :cascade
+    add_foreign_key "project_import_data", "projects", name: "fk_ffb9ee3a10", on_delete: :cascade
+    add_foreign_key "project_statistics", "projects", on_delete: :cascade
+    add_foreign_key "protected_branch_merge_access_levels", "protected_branches", name: "fk_8a3072ccb3", on_delete: :cascade
+    add_foreign_key "protected_branch_push_access_levels", "protected_branches", name: "fk_9ffc86a3d9", on_delete: :cascade
+    add_foreign_key "protected_branches", "projects", name: "fk_7a9c6d93e7", on_delete: :cascade
+    add_foreign_key "protected_tag_create_access_levels", "namespaces", column: "group_id"
+    add_foreign_key "protected_tag_create_access_levels", "protected_tags", name: "fk_f7dfda8c51", on_delete: :cascade
+    add_foreign_key "protected_tag_create_access_levels", "users"
+    add_foreign_key "protected_tags", "projects", name: "fk_8e4af87648", on_delete: :cascade
+    add_foreign_key "push_event_payloads", "events", name: "fk_36c74129da", on_delete: :cascade
+    add_foreign_key "releases", "projects", name: "fk_47fe2a0596", on_delete: :cascade
+    add_foreign_key "services", "projects", name: "fk_71cce407f9", on_delete: :cascade
+    add_foreign_key "snippets", "projects", name: "fk_be41fd4bb7", on_delete: :cascade
+    add_foreign_key "subscriptions", "projects", on_delete: :cascade
+    add_foreign_key "system_note_metadata", "notes", name: "fk_d83a918cb1", on_delete: :cascade
+    add_foreign_key "timelogs", "issues", name: "fk_timelogs_issues_issue_id", on_delete: :cascade
+    add_foreign_key "timelogs", "merge_requests", name: "fk_timelogs_merge_requests_merge_request_id", on_delete: :cascade
+    add_foreign_key "todos", "projects", name: "fk_45054f9c45", on_delete: :cascade
+    add_foreign_key "trending_projects", "projects", on_delete: :cascade
+    add_foreign_key "u2f_registrations", "users"
+    add_foreign_key "user_custom_attributes", "users", on_delete: :cascade
+    add_foreign_key "user_synced_attributes_metadata", "users", on_delete: :cascade
+    add_foreign_key "users_star_projects", "projects", name: "fk_22cd27ddfc", on_delete: :cascade
+    add_foreign_key "web_hook_logs", "web_hooks", on_delete: :cascade
+    add_foreign_key "web_hooks", "projects", name: "fk_0c8ca6d9d1", on_delete: :cascade
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration, "The initial migration is not revertable"
+  end
+end
diff --git a/db/post_migrate/20160824121037_change_personal_access_tokens_default_back_to_empty_array.rb b/db/post_migrate/20160824121037_change_personal_access_tokens_default_back_to_empty_array.rb
deleted file mode 100644
index 099814d7556..00000000000
--- a/db/post_migrate/20160824121037_change_personal_access_tokens_default_back_to_empty_array.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# The default needs to be `[]`, but all existing access tokens need to have `scopes` set to `['api']`.
-# It's easier to achieve this by adding the column with the `['api']` default (regular migration), and
-# then changing the default to `[]` (in this post-migration).
-#
-# Details: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5951#note_19721973
-
-class ChangePersonalAccessTokensDefaultBackToEmptyArray < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    change_column_default :personal_access_tokens, :scopes, [].to_yaml
-  end
-
-  def down
-    change_column_default :personal_access_tokens, :scopes, ['api'].to_yaml
-  end
-end
diff --git a/db/post_migrate/20161011222551_remove_inactive_jira_service_properties.rb b/db/post_migrate/20161011222551_remove_inactive_jira_service_properties.rb
deleted file mode 100644
index bf3aee99418..00000000000
--- a/db/post_migrate/20161011222551_remove_inactive_jira_service_properties.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class RemoveInactiveJiraServiceProperties < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = true
-  DOWNTIME_REASON = "Removes all inactive jira_service properties"
-
-  def up
-    execute("UPDATE services SET properties = '{}' WHERE services.type = 'JiraService' and services.active = false")
-  end
-end
diff --git a/db/post_migrate/20161109150329_fix_project_records_with_invalid_visibility.rb b/db/post_migrate/20161109150329_fix_project_records_with_invalid_visibility.rb
deleted file mode 100644
index 6d9c7e4ed72..00000000000
--- a/db/post_migrate/20161109150329_fix_project_records_with_invalid_visibility.rb
+++ /dev/null
@@ -1,49 +0,0 @@
-class FixProjectRecordsWithInvalidVisibility < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  BATCH_SIZE = 500
-  DOWNTIME = false
-
-  # This migration is idempotent and there's no sense in throwing away the
-  # partial result if it's interrupted
-  disable_ddl_transaction!
-
-  def up
-    projects = Arel::Table.new(:projects)
-    namespaces = Arel::Table.new(:namespaces)
-
-    finder_sql =
-      projects
-        .join(namespaces, Arel::Nodes::InnerJoin)
-        .on(projects[:namespace_id].eq(namespaces[:id]))
-        .where(projects[:visibility_level].gt(namespaces[:visibility_level]))
-        .project(projects[:id], namespaces[:visibility_level])
-        .take(BATCH_SIZE)
-        .to_sql
-
-    # Update matching rows in batches. Each batch can cause up to 3 UPDATE
-    # statements, in addition to the SELECT: one per visibility_level
-    loop do
-      to_update = connection.exec_query(finder_sql)
-      break if to_update.rows.count == 0
-
-      # row[0] is projects.id, row[1] is namespaces.visibility_level
-      updates = to_update.rows.each_with_object(Hash.new {|h, k| h[k] = [] }) do |row, obj|
-        obj[row[1]] << row[0]
-      end
-
-      updates.each do |visibility_level, project_ids|
-        updater = Arel::UpdateManager.new
-          .table(projects)
-          .set(projects[:visibility_level] => visibility_level)
-          .where(projects[:id].in(project_ids))
-
-        ActiveRecord::Base.connection.exec_update(updater.to_sql, self.class.name, [])
-      end
-    end
-  end
-
-  def down
-    # no-op
-  end
-end
diff --git a/db/post_migrate/20161128170531_drop_user_activities_table.rb b/db/post_migrate/20161128170531_drop_user_activities_table.rb
deleted file mode 100644
index d8b1e0731f3..00000000000
--- a/db/post_migrate/20161128170531_drop_user_activities_table.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-class DropUserActivitiesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def up
-    drop_table :user_activities if table_exists?(:user_activities)
-  end
-
-  def down
-    unless table_exists?(:user_activities)
-      create_table "user_activities", force: :cascade do |t|
-        t.integer "user_id"
-        t.datetime "last_activity_at", null: false
-      end
-
-      add_index "user_activities", ["user_id"], name: "index_user_activities_on_user_id", unique: true, using: :btree
-    end
-  end
-end
diff --git a/db/post_migrate/20161221140236_remove_unneeded_services.rb b/db/post_migrate/20161221140236_remove_unneeded_services.rb
deleted file mode 100644
index 31f24263877..00000000000
--- a/db/post_migrate/20161221140236_remove_unneeded_services.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class RemoveUnneededServices < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    disable_statement_timeout
-
-    execute("DELETE FROM services WHERE active = false AND properties = '{}';")
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20161221153951_rename_reserved_project_names.rb b/db/post_migrate/20161221153951_rename_reserved_project_names.rb
deleted file mode 100644
index 32579256299..00000000000
--- a/db/post_migrate/20161221153951_rename_reserved_project_names.rb
+++ /dev/null
@@ -1,137 +0,0 @@
-class RenameReservedProjectNames < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  THREAD_COUNT = 8
-
-  KNOWN_PATHS = %w(.well-known
-                   all
-                   blame
-                   blob
-                   commits
-                   create
-                   create_dir
-                   edit
-                   files
-                   find_file
-                   groups
-                   hooks
-                   issues
-                   logs_tree
-                   merge_requests
-                   new
-                   preview
-                   projects
-                   raw
-                   repository
-                   robots.txt
-                   s
-                   snippets
-                   teams
-                   tree
-                   u
-                   unsubscribes
-                   update
-                   users
-                   wikis).freeze
-
-  def up
-    queues = Array.new(THREAD_COUNT) { Queue.new }
-    start = false
-
-    threads = Array.new(THREAD_COUNT) do |index|
-      Thread.new do
-        queue = queues[index]
-
-        # Wait until we have input to process.
-        until start; end
-
-        rename_projects(queue.pop) until queue.empty?
-      end
-    end
-
-    enum = queues.each
-
-    reserved_projects.each_slice(100) do |slice|
-      begin
-        queue = enum.next
-      rescue StopIteration
-        enum.rewind
-        retry
-      end
-
-      queue << slice
-    end
-
-    start = true
-
-    threads.each(&:join)
-  end
-
-  def down
-    # nothing to do here
-  end
-
-  private
-
-  def reserved_projects
-    Project.unscoped
-      .includes(:namespace)
-      .where('EXISTS (SELECT 1 FROM namespaces WHERE projects.namespace_id = namespaces.id)')
-      .where('projects.path' => KNOWN_PATHS)
-  end
-
-  def route_exists?(full_path)
-    quoted_path = ActiveRecord::Base.connection.quote_string(full_path)
-
-    ActiveRecord::Base.connection
-      .select_all("SELECT id, path FROM routes WHERE path = '#{quoted_path}'").present?
-  end
-
-  # Adds number to the end of the path that is not taken by other route
-  def rename_path(namespace_path, path_was)
-    counter = 0
-    path = "#{path_was}#{counter}"
-
-    while route_exists?("#{namespace_path}/#{path}")
-      counter += 1
-      path = "#{path_was}#{counter}"
-    end
-
-    path
-  end
-
-  def rename_projects(projects)
-    projects.each do |project|
-      id = project.id
-      path_was = project.path
-      namespace_path = project.namespace.path
-      path = rename_path(namespace_path, path_was)
-
-      begin
-        # Because project path update is quite complex operation we can't safely
-        # copy-paste all code from GitLab. As exception we use Rails code here
-        if rename_project_row(project, path)
-          after_rename_service(project, path_was, namespace_path).execute
-        end
-      rescue Exception => e # rubocop: disable Lint/RescueException
-        Rails.logger.error "Exception when renaming project #{id}: #{e.message}"
-      end
-    end
-  end
-
-  def rename_project_row(project, path)
-    project.respond_to?(:update_attributes) &&
-      project.update(path: path) &&
-      defined?(Projects::AfterRenameService)
-  end
-
-  def after_rename_service(project, path_was, namespace_path)
-    AfterRenameService.new(
-      project,
-      path_before: path_was,
-      full_path_before: "#{namespace_path}/#{path_was}"
-    ).execute
-  end
-end
diff --git a/db/post_migrate/20170104150317_requeue_pending_delete_projects.rb b/db/post_migrate/20170104150317_requeue_pending_delete_projects.rb
deleted file mode 100644
index f567accb051..00000000000
--- a/db/post_migrate/20170104150317_requeue_pending_delete_projects.rb
+++ /dev/null
@@ -1,49 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RequeuePendingDeleteProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    admin = User.find_by(admin: true)
-    return unless admin
-
-    @offset = 0
-
-    loop do
-      ids = pending_delete_batch
-
-      break if ids.rows.count.zero?
-
-      args = ids.map { |id| [id['id'], admin.id, {}] }
-
-      Sidekiq::Client.push_bulk('class' => "ProjectDestroyWorker", 'args' => args)
-
-      @offset += 1
-    end
-  end
-
-  def down
-    # noop
-  end
-
-  private
-
-  def pending_delete_batch
-    connection.exec_query(find_batch)
-  end
-
-  BATCH_SIZE = 5000
-
-  def find_batch
-    projects = Arel::Table.new(:projects)
-    projects.project(projects[:id])
-      .where(projects[:pending_delete].eq(true))
-      .where(projects[:namespace_id].not_eq(nil))
-      .skip(@offset * BATCH_SIZE)
-      .take(BATCH_SIZE)
-      .to_sql
-  end
-end
diff --git a/db/post_migrate/20170106142508_fill_authorized_projects.rb b/db/post_migrate/20170106142508_fill_authorized_projects.rb
deleted file mode 100644
index 1f1dd0f47f0..00000000000
--- a/db/post_migrate/20170106142508_fill_authorized_projects.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class FillAuthorizedProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  class User < ActiveRecord::Base
-    self.table_name = 'users'
-  end
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # We're not inserting any data so we don't need to start a transaction.
-  disable_ddl_transaction!
-
-  def up
-    relation = User.select(:id)
-      .where('authorized_projects_populated IS NOT TRUE')
-
-    relation.find_in_batches(batch_size: 1_000) do |rows|
-      args = rows.map { |row| [row.id] }
-
-      Sidekiq::Client.push_bulk('class' => 'AuthorizedProjectsWorker', 'args' => args)
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170106172224_remove_project_authorizations_id_column.rb b/db/post_migrate/20170106172224_remove_project_authorizations_id_column.rb
deleted file mode 100644
index 893af23465a..00000000000
--- a/db/post_migrate/20170106172224_remove_project_authorizations_id_column.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveProjectAuthorizationsIdColumn < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_column :project_authorizations, :id, :primary_key
-  end
-end
diff --git a/db/post_migrate/20170131214021_reset_users_authorized_projects_populated.rb b/db/post_migrate/20170131214021_reset_users_authorized_projects_populated.rb
deleted file mode 100644
index 055a14ad729..00000000000
--- a/db/post_migrate/20170131214021_reset_users_authorized_projects_populated.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class ResetUsersAuthorizedProjectsPopulated < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # This ensures we don't lock all users for the duration of the migration.
-    update_column_in_batches(:users, :authorized_projects_populated, nil)
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170206040400_remove_inactive_default_email_services.rb b/db/post_migrate/20170206040400_remove_inactive_default_email_services.rb
deleted file mode 100644
index f221dac8e20..00000000000
--- a/db/post_migrate/20170206040400_remove_inactive_default_email_services.rb
+++ /dev/null
@@ -1,41 +0,0 @@
-class RemoveInactiveDefaultEmailServices < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    Gitlab::Database.with_connection_pool(2) do |pool|
-      threads = []
-
-      threads << Thread.new do
-        pool.with_connection do |connection|
-          connection.execute <<-SQL.strip_heredoc
-          DELETE FROM services
-            WHERE type = 'BuildsEmailService'
-              AND active IS FALSE
-              AND properties = '{"notify_only_broken_builds":true}';
-          SQL
-        end
-      end
-
-      threads << Thread.new do
-        pool.with_connection do |connection|
-          connection.execute <<-SQL.strip_heredoc
-          DELETE FROM services
-            WHERE type = 'PipelinesEmailService'
-              AND active IS FALSE
-              AND properties = '{"notify_only_broken_pipelines":true}';
-          SQL
-        end
-      end
-
-      threads.each(&:join)
-    end
-  end
-
-  def down
-    # Nothing can be done to restore the records
-  end
-end
diff --git a/db/post_migrate/20170206101007_remove_trackable_columns_from_timelogs.rb b/db/post_migrate/20170206101007_remove_trackable_columns_from_timelogs.rb
deleted file mode 100644
index 14f5d0d4add..00000000000
--- a/db/post_migrate/20170206101007_remove_trackable_columns_from_timelogs.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveTrackableColumnsFromTimelogs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    remove_column :timelogs, :trackable_id, :integer
-    remove_column :timelogs, :trackable_type, :string
-  end
-end
diff --git a/db/post_migrate/20170206101030_validate_foreign_keys_on_timelogs.rb b/db/post_migrate/20170206101030_validate_foreign_keys_on_timelogs.rb
deleted file mode 100644
index b5a5c0f06c7..00000000000
--- a/db/post_migrate/20170206101030_validate_foreign_keys_on_timelogs.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ValidateForeignKeysOnTimelogs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    if Gitlab::Database.postgresql?
-      execute <<-EOF
-        ALTER TABLE timelogs VALIDATE CONSTRAINT "fk_timelogs_issues_issue_id";
-        ALTER TABLE timelogs VALIDATE CONSTRAINT "fk_timelogs_merge_requests_merge_request_id";
-      EOF
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170209140523_validate_foreign_keys_on_oauth_openid_requests.rb b/db/post_migrate/20170209140523_validate_foreign_keys_on_oauth_openid_requests.rb
deleted file mode 100644
index 81ac4cf1373..00000000000
--- a/db/post_migrate/20170209140523_validate_foreign_keys_on_oauth_openid_requests.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class ValidateForeignKeysOnOauthOpenidRequests < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    if Gitlab::Database.postgresql?
-      execute %q{
-        ALTER TABLE "oauth_openid_requests"
-          VALIDATE CONSTRAINT "fk_oauth_openid_requests_oauth_access_grants_access_grant_id";
-      }
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170211073944_disable_invalid_service_templates.rb b/db/post_migrate/20170211073944_disable_invalid_service_templates.rb
deleted file mode 100644
index 31234e5b086..00000000000
--- a/db/post_migrate/20170211073944_disable_invalid_service_templates.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class DisableInvalidServiceTemplates < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  class Service < ActiveRecord::Base
-    self.inheritance_column = nil
-  end
-
-  def up
-    Service.where(template: true, active: true).each do |template|
-      template.update(active: false) unless template.valid?
-    end
-  end
-end
diff --git a/db/post_migrate/20170214111112_delete_deprecated_gitlab_ci_service.rb b/db/post_migrate/20170214111112_delete_deprecated_gitlab_ci_service.rb
deleted file mode 100644
index c273060f8b0..00000000000
--- a/db/post_migrate/20170214111112_delete_deprecated_gitlab_ci_service.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class DeleteDeprecatedGitlabCiService < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    disable_statement_timeout
-
-    execute("DELETE FROM services WHERE type = 'GitlabCiService';")
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170215200045_remove_theme_id_from_users.rb b/db/post_migrate/20170215200045_remove_theme_id_from_users.rb
deleted file mode 100644
index 937fe3f57af..00000000000
--- a/db/post_migrate/20170215200045_remove_theme_id_from_users.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class RemoveThemeIdFromUsers < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_column :users, :theme_id, :integer
-  end
-end
diff --git a/db/post_migrate/20170301205640_migrate_build_events_to_pipeline_events.rb b/db/post_migrate/20170301205640_migrate_build_events_to_pipeline_events.rb
deleted file mode 100644
index c2d28d79491..00000000000
--- a/db/post_migrate/20170301205640_migrate_build_events_to_pipeline_events.rb
+++ /dev/null
@@ -1,86 +0,0 @@
-class MigrateBuildEventsToPipelineEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    Gitlab::Database.with_connection_pool(2) do |pool|
-      threads = []
-
-      threads << Thread.new do
-        pool.with_connection do |connection|
-          Thread.current[:foreign_key_connection] = connection
-
-          execute(<<-SQL.strip_heredoc)
-            UPDATE services
-              SET properties = replace(properties,
-                                       'notify_only_broken_builds',
-                                       'notify_only_broken_pipelines')
-                , pipeline_events = #{true_value}
-                , build_events = #{false_value}
-            WHERE type IN
-              ('SlackService', 'MattermostService', 'HipchatService')
-              AND build_events = #{true_value};
-          SQL
-        end
-      end
-
-      threads << Thread.new do
-        pool.with_connection do |connection|
-          Thread.current[:foreign_key_connection] = connection
-
-          execute(update_pipeline_services_sql)
-        end
-      end
-
-      threads.each(&:join)
-    end
-  end
-
-  def down
-    # Don't bother to migrate the data back
-  end
-
-  def connection
-    # Rails memoizes connection objects, but this causes them to be shared
-    # amongst threads; we don't want that.
-    Thread.current[:foreign_key_connection] || ActiveRecord::Base.connection
-  end
-
-  private
-
-  def update_pipeline_services_sql
-    if Gitlab::Database.postgresql?
-      <<-SQL
-        UPDATE services
-          SET type = 'PipelinesEmailService'
-            , properties = replace(properties,
-                                   'notify_only_broken_builds',
-                                   'notify_only_broken_pipelines')
-            , pipeline_events = #{true_value}
-            , build_events = #{false_value}
-        WHERE type = 'BuildsEmailService'
-        AND
-          (SELECT 1 FROM services pipeline_services
-             WHERE pipeline_services.project_id = services.project_id
-               AND pipeline_services.type = 'PipelinesEmailService' LIMIT 1)
-          IS NULL;
-      SQL
-    else
-      <<-SQL
-        UPDATE services build_services
-         LEFT OUTER JOIN services pipeline_services
-           ON build_services.project_id = pipeline_services.project_id
-          AND pipeline_services.type = 'PipelinesEmailService'
-          SET build_services.type = 'PipelinesEmailService'
-            , build_services.properties = replace(build_services.properties,
-                                         'notify_only_broken_builds',
-                                         'notify_only_broken_pipelines')
-            , build_services.pipeline_events = #{true_value}
-            , build_services.build_events = #{false_value}
-        WHERE build_services.type = 'BuildsEmailService'
-          AND pipeline_services.id IS NULL;
-      SQL
-    end.strip_heredoc
-  end
-end
diff --git a/db/post_migrate/20170306170512_migrate_legacy_manual_actions.rb b/db/post_migrate/20170306170512_migrate_legacy_manual_actions.rb
deleted file mode 100644
index aa12e8ac3da..00000000000
--- a/db/post_migrate/20170306170512_migrate_legacy_manual_actions.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-class MigrateLegacyManualActions < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    disable_statement_timeout
-
-    execute <<-EOS
-      UPDATE ci_builds SET status = 'manual', allow_failure = true
-        WHERE ci_builds.when = 'manual' AND ci_builds.status = 'skipped';
-    EOS
-  end
-
-  def down
-    disable_statement_timeout
-
-    execute <<-EOS
-      UPDATE ci_builds SET status = 'skipped', allow_failure = false
-        WHERE ci_builds.when = 'manual' AND ci_builds.status = 'manual';
-    EOS
-  end
-end
diff --git a/db/post_migrate/20170309171644_reset_relative_position_for_issue.rb b/db/post_migrate/20170309171644_reset_relative_position_for_issue.rb
deleted file mode 100644
index 2cf4cf61d8f..00000000000
--- a/db/post_migrate/20170309171644_reset_relative_position_for_issue.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class ResetRelativePositionForIssue < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:issues, :relative_position, nil) do |table, query|
-      query.where(table[:relative_position].not_eq(nil))
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb b/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb
deleted file mode 100644
index 85c97e3687e..00000000000
--- a/db/post_migrate/20170313133418_rename_more_reserved_project_names.rb
+++ /dev/null
@@ -1,79 +0,0 @@
-class RenameMoreReservedProjectNames < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  KNOWN_PATHS = %w(artifacts graphs refs badges).freeze
-
-  def up
-    reserved_projects.each_slice(100) do |slice|
-      rename_projects(slice)
-    end
-  end
-
-  def down
-    # nothing to do here
-  end
-
-  private
-
-  def reserved_projects
-    Project.unscoped
-      .includes(:namespace)
-      .where('EXISTS (SELECT 1 FROM namespaces WHERE projects.namespace_id = namespaces.id)')
-      .where('projects.path' => KNOWN_PATHS)
-  end
-
-  def route_exists?(full_path)
-    quoted_path = ActiveRecord::Base.connection.quote_string(full_path)
-
-    ActiveRecord::Base.connection
-      .select_all("SELECT id, path FROM routes WHERE path = '#{quoted_path}'").present?
-  end
-
-  # Adds number to the end of the path that is not taken by other route
-  def rename_path(namespace_path, path_was)
-    counter = 0
-    path = "#{path_was}#{counter}"
-
-    while route_exists?("#{namespace_path}/#{path}")
-      counter += 1
-      path = "#{path_was}#{counter}"
-    end
-
-    path
-  end
-
-  def rename_projects(projects)
-    projects.each do |project|
-      id = project.id
-      path_was = project.path
-      namespace_path = project.namespace.path
-      path = rename_path(namespace_path, path_was)
-
-      begin
-        # Because project path update is quite complex operation we can't safely
-        # copy-paste all code from GitLab. As exception we use Rails code here
-        if rename_project_row(project, path)
-          after_rename_service(project, path_was, namespace_path).execute
-        end
-      rescue Exception => e # rubocop: disable Lint/RescueException
-        Rails.logger.error "Exception when renaming project #{id}: #{e.message}"
-      end
-    end
-  end
-
-  def rename_project_row(project, path)
-    project.respond_to?(:update_attributes) &&
-      project.update(path: path) &&
-      defined?(Projects::AfterRenameService)
-  end
-
-  def after_rename_service(project, path_was, namespace_path)
-    AfterRenameService.new(
-      project,
-      path_before: path_was,
-      full_path_before: "#{namespace_path}/#{path_was}"
-    ).execute
-  end
-end
diff --git a/db/post_migrate/20170317162059_update_upload_paths_to_system.rb b/db/post_migrate/20170317162059_update_upload_paths_to_system.rb
deleted file mode 100644
index 99cdca465e2..00000000000
--- a/db/post_migrate/20170317162059_update_upload_paths_to_system.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class UpdateUploadPathsToSystem < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  AFFECTED_MODELS = %w(User Project Note Namespace Appearance)
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:uploads, :path, replace_sql(arel_table[:path], base_directory, new_upload_dir)) do |_table, query|
-      query.where(uploads_to_switch_to_new_path)
-    end
-  end
-
-  def down
-    update_column_in_batches(:uploads, :path, replace_sql(arel_table[:path], new_upload_dir, base_directory)) do |_table, query|
-      query.where(uploads_to_switch_to_old_path)
-    end
-  end
-
-  # "SELECT \"uploads\".* FROM \"uploads\" WHERE \"uploads\".\"model_type\" IN ('User', 'Project', 'Note', 'Namespace', 'Appearance') AND (\"uploads\".\"path\" ILIKE 'uploads/%' AND NOT (\"uploads\".\"path\" ILIKE 'uploads/system/%'))"
-  def uploads_to_switch_to_new_path
-    affected_uploads.and(starting_with_base_directory).and(starting_with_new_upload_directory.not)
-  end
-
-  # "SELECT \"uploads\".* FROM \"uploads\" WHERE \"uploads\".\"model_type\" IN ('User', 'Project', 'Note', 'Namespace', 'Appearance') AND (\"uploads\".\"path\" ILIKE 'uploads/%' AND \"uploads\".\"path\" ILIKE 'uploads/system/%')"
-  def uploads_to_switch_to_old_path
-    affected_uploads.and(starting_with_new_upload_directory)
-  end
-
-  def starting_with_base_directory
-    arel_table[:path].matches("#{base_directory}/%")
-  end
-
-  def starting_with_new_upload_directory
-    arel_table[:path].matches("#{new_upload_dir}/%")
-  end
-
-  def affected_uploads
-    arel_table[:model_type].in(AFFECTED_MODELS)
-  end
-
-  def base_directory
-    "uploads"
-  end
-
-  def new_upload_dir
-    File.join(base_directory, "-", "system")
-  end
-
-  def arel_table
-    Arel::Table.new(:uploads)
-  end
-end
diff --git a/db/post_migrate/20170324160416_migrate_user_activities_to_users_last_activity_on.rb b/db/post_migrate/20170324160416_migrate_user_activities_to_users_last_activity_on.rb
deleted file mode 100644
index 61a5c364b2f..00000000000
--- a/db/post_migrate/20170324160416_migrate_user_activities_to_users_last_activity_on.rb
+++ /dev/null
@@ -1,88 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class MigrateUserActivitiesToUsersLastActivityOn < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-  USER_ACTIVITY_SET_KEY = 'user/activities'.freeze
-  ACTIVITIES_PER_PAGE = 100
-  TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED = Time.utc(2016, 12, 1)
-
-  def up
-    return if activities_count(TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED, Time.now).zero?
-
-    day = Time.at(activities(TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED, Time.now).first.second)
-
-    transaction do
-      while day <= Time.now.utc.tomorrow
-        persist_last_activity_on(day: day)
-        day = day.tomorrow
-      end
-    end
-  end
-
-  def down
-    # This ensures we don't lock all users for the duration of the migration.
-    update_column_in_batches(:users, :last_activity_on, nil) do |table, query|
-      query.where(table[:last_activity_on].not_eq(nil))
-    end
-  end
-
-  private
-
-  def persist_last_activity_on(day:, page: 1)
-    activities_count = activities_count(day.at_beginning_of_day, day.at_end_of_day)
-
-    return if activities_count.zero?
-
-    activities = activities(day.at_beginning_of_day, day.at_end_of_day, page: page)
-
-    update_sql =
-      Arel::UpdateManager.new
-        .table(users_table)
-        .set(users_table[:last_activity_on] => day.to_date)
-        .where(users_table[:username].in(activities.map(&:first)))
-        .to_sql
-
-    connection.exec_update(update_sql, self.class.name, [])
-
-    unless last_page?(page, activities_count)
-      persist_last_activity_on(day: day, page: page + 1)
-    end
-  end
-
-  def users_table
-    @users_table ||= Arel::Table.new(:users)
-  end
-
-  def activities(from, to, page: 1)
-    Gitlab::Redis::SharedState.with do |redis|
-      redis.zrangebyscore(USER_ACTIVITY_SET_KEY, from.to_i, to.to_i,
-        with_scores: true,
-        limit: limit(page))
-    end
-  end
-
-  def activities_count(from, to)
-    Gitlab::Redis::SharedState.with do |redis|
-      redis.zcount(USER_ACTIVITY_SET_KEY, from.to_i, to.to_i)
-    end
-  end
-
-  def limit(page)
-    [offset(page), ACTIVITIES_PER_PAGE]
-  end
-
-  def total_pages(count)
-    (count.to_f / ACTIVITIES_PER_PAGE).ceil
-  end
-
-  def last_page?(page, count)
-    page >= total_pages(count)
-  end
-
-  def offset(page)
-    (page - 1) * ACTIVITIES_PER_PAGE
-  end
-end
diff --git a/db/post_migrate/20170404170532_remove_notes_original_discussion_id.rb b/db/post_migrate/20170404170532_remove_notes_original_discussion_id.rb
deleted file mode 100644
index 334742f04e4..00000000000
--- a/db/post_migrate/20170404170532_remove_notes_original_discussion_id.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveNotesOriginalDiscussionId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  # When using the methods "add_concurrent_index" or "add_column_with_default"
-  # you must disable the use of transactions as these methods can not run in an
-  # existing transaction. When using "add_concurrent_index" make sure that this
-  # method is the _only_ method called in the migration, any other changes
-  # should go in a separate migration. This ensures that upon failure _only_ the
-  # index creation fails and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def change
-    remove_column :notes, :original_discussion_id, :string
-  end
-end
diff --git a/db/post_migrate/20170406111121_clean_upload_symlinks.rb b/db/post_migrate/20170406111121_clean_upload_symlinks.rb
deleted file mode 100644
index 5fec00aa198..00000000000
--- a/db/post_migrate/20170406111121_clean_upload_symlinks.rb
+++ /dev/null
@@ -1,53 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanUploadSymlinks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-  DIRECTORIES_TO_MOVE = %w(user project note group appearance)
-
-  def up
-    return unless file_storage?
-
-    DIRECTORIES_TO_MOVE.each do |dir|
-      symlink_location = File.join(old_upload_dir, dir)
-      next unless File.symlink?(symlink_location)
-
-      say "removing symlink: #{symlink_location}"
-      FileUtils.rm(symlink_location)
-    end
-  end
-
-  def down
-    return unless file_storage?
-
-    DIRECTORIES_TO_MOVE.each do |dir|
-      symlink = File.join(old_upload_dir, dir)
-      destination = File.join(new_upload_dir, dir)
-
-      next if File.directory?(symlink)
-      next unless File.directory?(destination)
-
-      say "Creating symlink #{symlink} -> #{destination}"
-      FileUtils.ln_s(destination, symlink)
-    end
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-
-  def base_directory
-    Rails.root
-  end
-
-  def old_upload_dir
-    File.join(base_directory, "public", "uploads")
-  end
-
-  def new_upload_dir
-    File.join(base_directory, "public", "uploads", "-", "system")
-  end
-end
diff --git a/db/post_migrate/20170406142253_migrate_user_project_view.rb b/db/post_migrate/20170406142253_migrate_user_project_view.rb
deleted file mode 100644
index 3601baba787..00000000000
--- a/db/post_migrate/20170406142253_migrate_user_project_view.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateUserProjectView < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:users, :project_view, 2) do |table, query|
-      query.where(table[:project_view].eq(0))
-    end
-  end
-
-  def down
-    # Nothing can be done to restore old values
-  end
-end
diff --git a/db/post_migrate/20170408033905_remove_old_cache_directories.rb b/db/post_migrate/20170408033905_remove_old_cache_directories.rb
deleted file mode 100644
index 22bc5b9db7b..00000000000
--- a/db/post_migrate/20170408033905_remove_old_cache_directories.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-# Remove all files from old custom carrierwave's cache directories.
-# See https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9466
-
-class RemoveOldCacheDirectories < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # FileUploader cache.
-    FileUtils.rm_rf(Dir[Rails.root.join('public', 'uploads', 'tmp', '*')])
-  end
-
-  def down
-    # Old cache is not supposed to be recoverable.
-    # So the down method is empty.
-  end
-end
diff --git a/db/post_migrate/20170412174900_rename_reserved_dynamic_paths.rb b/db/post_migrate/20170412174900_rename_reserved_dynamic_paths.rb
deleted file mode 100644
index c9ff91b0401..00000000000
--- a/db/post_migrate/20170412174900_rename_reserved_dynamic_paths.rb
+++ /dev/null
@@ -1,62 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameReservedDynamicPaths < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::RenameReservedPathsMigration::V1
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  DISALLOWED_ROOT_PATHS = %w[
-    -
-    abuse_reports
-    api
-    autocomplete
-    explore
-    health_check
-    import
-    invites
-    jwt
-    koding
-    member
-    notification_settings
-    oauth
-    sent_notifications
-    unicorn_test
-    uploads
-    users
-  ]
-
-  DISALLOWED_WILDCARD_PATHS = %w[
-    environments/folders
-    gitlab-lfs/objects
-    info/lfs/objects
-  ]
-
-  DISSALLOWED_GROUP_PATHS = %w[
-    activity
-    analytics
-    audit_events
-    avatar
-    group_members
-    hooks
-    labels
-    ldap
-    ldap_group_links
-    milestones
-    notification_setting
-    pipeline_quota
-    subgroups
-  ]
-
-  def up
-    rename_root_paths(DISALLOWED_ROOT_PATHS)
-    rename_wildcard_paths(DISALLOWED_WILDCARD_PATHS)
-    rename_child_paths(DISSALLOWED_GROUP_PATHS)
-  end
-
-  def down
-    # nothing to do
-  end
-end
diff --git a/db/post_migrate/20170425121605_migrate_trigger_schedules_to_pipeline_schedules.rb b/db/post_migrate/20170425121605_migrate_trigger_schedules_to_pipeline_schedules.rb
deleted file mode 100644
index 99ded277277..00000000000
--- a/db/post_migrate/20170425121605_migrate_trigger_schedules_to_pipeline_schedules.rb
+++ /dev/null
@@ -1,48 +0,0 @@
-class MigrateTriggerSchedulesToPipelineSchedules < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    connection.execute <<~SQL
-      DELETE FROM ci_trigger_schedules WHERE NOT EXISTS
-        (SELECT true FROM projects
-        WHERE ci_trigger_schedules.project_id = projects.id
-        )
-    SQL
-
-    connection.execute <<-SQL
-      INSERT INTO ci_pipeline_schedules (
-        project_id,
-        created_at,
-        updated_at,
-        deleted_at,
-        cron,
-        cron_timezone,
-        next_run_at,
-        ref,
-        active,
-        owner_id,
-        description
-      )
-      SELECT
-        ci_trigger_schedules.project_id,
-        ci_trigger_schedules.created_at,
-        ci_trigger_schedules.updated_at,
-        ci_trigger_schedules.deleted_at,
-        ci_trigger_schedules.cron,
-        ci_trigger_schedules.cron_timezone,
-        ci_trigger_schedules.next_run_at,
-        ci_trigger_schedules.ref,
-        ci_trigger_schedules.active,
-        ci_triggers.owner_id,
-        ci_triggers.description
-      FROM ci_trigger_schedules
-      INNER JOIN ci_triggers ON ci_trigger_schedules.trigger_id=ci_triggers.id;
-    SQL
-  end
-
-  def down
-    # no op as the data has been removed
-  end
-end
diff --git a/db/post_migrate/20170425130047_drop_ci_trigger_schedules_table.rb b/db/post_migrate/20170425130047_drop_ci_trigger_schedules_table.rb
deleted file mode 100644
index 9d515aca8b4..00000000000
--- a/db/post_migrate/20170425130047_drop_ci_trigger_schedules_table.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-class DropCiTriggerSchedulesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    drop_table :ci_trigger_schedules
-  end
-
-  def down
-    create_table "ci_trigger_schedules", force: :cascade do |t|
-      t.integer "project_id"
-      t.integer "trigger_id", null: false
-      t.datetime "deleted_at"
-      t.datetime "created_at"
-      t.datetime "updated_at"
-      t.string "cron"
-      t.string "cron_timezone"
-      t.datetime "next_run_at"
-      t.string "ref"
-      t.boolean "active"
-    end
-
-    add_index "ci_trigger_schedules", %w(active next_run_at), name: "index_ci_trigger_schedules_on_active_and_next_run_at", using: :btree
-    add_index "ci_trigger_schedules", ["project_id"], name: "index_ci_trigger_schedules_on_project_id", using: :btree
-    add_index "ci_trigger_schedules", ["next_run_at"], name: "index_ci_trigger_schedules_on_next_run_at"
-
-    add_concurrent_foreign_key "ci_trigger_schedules", "ci_triggers", column: :trigger_id, on_delete: :cascade
-  end
-end
diff --git a/db/post_migrate/20170502070007_enable_auto_cancel_pending_pipelines_for_all.rb b/db/post_migrate/20170502070007_enable_auto_cancel_pending_pipelines_for_all.rb
deleted file mode 100644
index 4d091d7f275..00000000000
--- a/db/post_migrate/20170502070007_enable_auto_cancel_pending_pipelines_for_all.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# rubocop:disable Migration/UpdateColumnInBatches
-class EnableAutoCancelPendingPipelinesForAll < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    disable_statement_timeout do
-      update_column_in_batches(:projects, :auto_cancel_pending_pipelines, 1)
-    end
-  end
-
-  def down
-    # Nothing we can do!
-  end
-end
diff --git a/db/post_migrate/20170503004427_update_retried_for_ci_build.rb b/db/post_migrate/20170503004427_update_retried_for_ci_build.rb
deleted file mode 100644
index 596f8593308..00000000000
--- a/db/post_migrate/20170503004427_update_retried_for_ci_build.rb
+++ /dev/null
@@ -1,69 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class UpdateRetriedForCiBuild < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    if Gitlab::Database.mysql?
-      up_mysql
-    else
-      disable_statement_timeout do
-        up_postgres
-      end
-    end
-  end
-
-  def down
-  end
-
-  private
-
-  def up_mysql
-    # This is a trick to overcome MySQL limitation:
-    # Mysql2::Error: Table 'ci_builds' is specified twice, both as a target for 'UPDATE' and as a separate source for data
-    # However, this leads to create a temporary table from `max(ci_builds.id)` which is slow and do full database update
-    execute <<-SQL.strip_heredoc
-      UPDATE ci_builds SET retried=
-        (id NOT IN (
-          SELECT * FROM (SELECT MAX(ci_builds.id) FROM ci_builds GROUP BY commit_id, name) AS latest_jobs
-        ))
-      WHERE retried IS NULL
-    SQL
-  end
-
-  def up_postgres
-    with_temporary_partial_index do
-      latest_id = <<-SQL.strip_heredoc
-        SELECT MAX(ci_builds2.id)
-          FROM ci_builds ci_builds2
-          WHERE ci_builds.commit_id=ci_builds2.commit_id
-            AND ci_builds.name=ci_builds2.name
-      SQL
-
-      # This is slow update as it does single-row query
-      # This is designed to be run as idle, or a post deployment migration
-      is_retried = Arel.sql("((#{latest_id}) != ci_builds.id)")
-
-      update_column_in_batches(:ci_builds, :retried, is_retried) do |table, query|
-        query.where(table[:retried].eq(nil))
-      end
-    end
-  end
-
-  def with_temporary_partial_index
-    if Gitlab::Database.postgresql?
-      unless index_exists?(:ci_builds, :id, name: :index_for_ci_builds_retried_migration)
-        execute 'CREATE INDEX CONCURRENTLY index_for_ci_builds_retried_migration ON ci_builds (id) WHERE retried IS NULL;'
-      end
-    end
-
-    yield
-
-    if Gitlab::Database.postgresql? && index_exists?(:ci_builds, :id, name: :index_for_ci_builds_retried_migration)
-      execute 'DROP INDEX CONCURRENTLY index_for_ci_builds_retried_migration'
-    end
-  end
-end
diff --git a/db/post_migrate/20170503120310_remove_users_authorized_projects_populated.rb b/db/post_migrate/20170503120310_remove_users_authorized_projects_populated.rb
deleted file mode 100644
index 891ce44f60a..00000000000
--- a/db/post_migrate/20170503120310_remove_users_authorized_projects_populated.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveUsersAuthorizedProjectsPopulated < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def change
-    remove_column :users, :authorized_projects_populated, :boolean
-  end
-end
diff --git a/db/post_migrate/20170508170547_add_head_pipeline_for_each_merge_request.rb b/db/post_migrate/20170508170547_add_head_pipeline_for_each_merge_request.rb
deleted file mode 100644
index 6e7365f4c56..00000000000
--- a/db/post_migrate/20170508170547_add_head_pipeline_for_each_merge_request.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class AddHeadPipelineForEachMergeRequest < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    pipelines = Arel::Table.new(:ci_pipelines)
-    merge_requests = Arel::Table.new(:merge_requests)
-
-    disable_statement_timeout do
-      head_id = pipelines
-        .project(Arel::Nodes::NamedFunction.new('max', [pipelines[:id]]))
-        .from(pipelines)
-        .where(pipelines[:ref].eq(merge_requests[:source_branch]))
-        .where(pipelines[:project_id].eq(merge_requests[:source_project_id]))
-
-      sub_query = Arel::Nodes::SqlLiteral.new(Arel::Nodes::Grouping.new(head_id).to_sql)
-
-      update_column_in_batches(:merge_requests, :head_pipeline_id, sub_query)
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170510101043_add_foreign_key_on_pipeline_schedule_owner.rb b/db/post_migrate/20170510101043_add_foreign_key_on_pipeline_schedule_owner.rb
deleted file mode 100644
index 85586aecd54..00000000000
--- a/db/post_migrate/20170510101043_add_foreign_key_on_pipeline_schedule_owner.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-class AddForeignKeyOnPipelineScheduleOwner < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    execute <<-SQL
-      UPDATE ci_pipeline_schedules
-      SET owner_id = NULL
-      WHERE NOT EXISTS (
-        SELECT true
-        FROM users
-        WHERE ci_pipeline_schedules.owner_id = users.id
-      )
-    SQL
-
-    add_concurrent_foreign_key(:ci_pipeline_schedules, :users, column: :owner_id, on_delete: on_delete)
-  end
-
-  def down
-    remove_foreign_key(:ci_pipeline_schedules, column: :owner_id)
-  end
-
-  private
-
-  def on_delete
-    if Gitlab::Database.mysql?
-      :nullify
-    else
-      'SET NULL'
-    end
-  end
-end
diff --git a/db/post_migrate/20170511100900_cleanup_rename_web_hooks_build_events_to_job_events.rb b/db/post_migrate/20170511100900_cleanup_rename_web_hooks_build_events_to_job_events.rb
deleted file mode 100644
index b4a3db65607..00000000000
--- a/db/post_migrate/20170511100900_cleanup_rename_web_hooks_build_events_to_job_events.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanupRenameWebHooksBuildEventsToJobEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    cleanup_concurrent_column_rename :web_hooks, :build_events, :job_events
-  end
-
-  def down
-    rename_column_concurrently :web_hooks, :job_events, :build_events
-  end
-end
diff --git a/db/post_migrate/20170511101000_cleanup_rename_services_build_events_to_job_events.rb b/db/post_migrate/20170511101000_cleanup_rename_services_build_events_to_job_events.rb
deleted file mode 100644
index 65342747321..00000000000
--- a/db/post_migrate/20170511101000_cleanup_rename_services_build_events_to_job_events.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanupRenameServicesBuildEventsToJobEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    cleanup_concurrent_column_rename :services, :build_events, :job_events
-  end
-
-  def down
-    rename_column_concurrently :services, :job_events, :build_events
-  end
-end
diff --git a/db/post_migrate/20170516165238_cleanup_trigger_for_issues.rb b/db/post_migrate/20170516165238_cleanup_trigger_for_issues.rb
deleted file mode 100644
index affeba52250..00000000000
--- a/db/post_migrate/20170516165238_cleanup_trigger_for_issues.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanupTriggerForIssues < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  def up
-    if Gitlab::Database.postgresql?
-      execute <<-EOF
-        DROP TRIGGER IF EXISTS replicate_assignee_id ON issues;
-        DROP FUNCTION IF EXISTS replicate_assignee_id();
-      EOF
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170516181025_add_constraints_to_issue_assignees_table.rb b/db/post_migrate/20170516181025_add_constraints_to_issue_assignees_table.rb
deleted file mode 100644
index 03456a31b0d..00000000000
--- a/db/post_migrate/20170516181025_add_constraints_to_issue_assignees_table.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddConstraintsToIssueAssigneesTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  # disable_ddl_transaction!
-
-  def up
-    change_column_null :issue_assignees, :issue_id, false
-    change_column_null :issue_assignees, :user_id, false
-  end
-
-  def down
-    change_column_null :issue_assignees, :issue_id, true
-    change_column_null :issue_assignees, :user_id, true
-  end
-end
diff --git a/db/post_migrate/20170518200835_rename_users_with_renamed_namespace.rb b/db/post_migrate/20170518200835_rename_users_with_renamed_namespace.rb
deleted file mode 100644
index 4ba78727cc3..00000000000
--- a/db/post_migrate/20170518200835_rename_users_with_renamed_namespace.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameUsersWithRenamedNamespace < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  DISALLOWED_ROOT_PATHS = %w[
-    abuse_reports
-    api
-    autocomplete
-    explore
-    health_check
-    import
-    invites
-    jwt
-    koding
-    member
-    notification_settings
-    oauth
-    sent_notifications
-    unicorn_test
-    uploads
-    users
-  ]
-
-  def up
-    DISALLOWED_ROOT_PATHS.each do |path|
-      users = Arel::Table.new(:users)
-      namespaces = Arel::Table.new(:namespaces)
-      predicate = namespaces[:owner_id].eq(users[:id])
-                    .and(namespaces[:type].eq(nil))
-                    .and(users[:username].matches(path))
-
-      update_sql = if Gitlab::Database.postgresql?
-                     "UPDATE users SET username = namespaces.path "\
-                     "FROM namespaces WHERE #{predicate.to_sql}"
-                   else
-                     "UPDATE users INNER JOIN namespaces "\
-                     "ON namespaces.owner_id = users.id "\
-                     "SET username = namespaces.path "\
-                     "WHERE #{predicate.to_sql}"
-                   end
-
-      connection.execute(update_sql)
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170518231126_fix_wrongly_renamed_routes.rb b/db/post_migrate/20170518231126_fix_wrongly_renamed_routes.rb
deleted file mode 100644
index 28a2a2e01bf..00000000000
--- a/db/post_migrate/20170518231126_fix_wrongly_renamed_routes.rb
+++ /dev/null
@@ -1,105 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class FixWronglyRenamedRoutes < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::RenameReservedPathsMigration::V1
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  DISALLOWED_ROOT_PATHS = %w[
-    -
-    abuse_reports
-    api
-    autocomplete
-    explore
-    health_check
-    import
-    invites
-    jwt
-    koding
-    member
-    notification_settings
-    oauth
-    sent_notifications
-    unicorn_test
-    uploads
-    users
-  ]
-
-  FIXED_PATHS = DISALLOWED_ROOT_PATHS.map { |p| "#{p}0" }
-
-  class Route < Gitlab::Database::RenameReservedPathsMigration::V1::MigrationClasses::Route
-    self.table_name = 'routes'
-  end
-
-  def routes
-    @routes ||= Route.arel_table
-  end
-
-  def namespaces
-    @namespaces ||= Arel::Table.new(:namespaces)
-  end
-
-  def wildcard_collection(collection)
-    collection.map { |word| "#{word}%" }
-  end
-
-  # The routes that got incorrectly renamed before, still have a namespace that
-  # contains the correct path.
-  # This query fetches all rows from the `routes` table that meet the following
-  # conditions using `api` as an example:
-  # - route.path ILIKE `api0%`
-  # - route.source_type = `Namespace`
-  # - namespace.parent_id IS NULL
-  # - namespace.path ILIKE `api%`
-  # - NOT(namespace.path ILIKE `api0%`)
-  # This gives us all root-routes, that were renamed, but their namespace was not.
-  #
-  def wrongly_renamed
-    Route.joins("INNER JOIN namespaces ON routes.source_id = namespaces.id")
-      .where(
-        routes[:source_type].eq('Namespace')
-          .and(namespaces[:parent_id].eq(nil))
-      )
-      .where(namespaces[:path].matches_any(wildcard_collection(DISALLOWED_ROOT_PATHS)))
-      .where.not(namespaces[:path].matches_any(wildcard_collection(FIXED_PATHS)))
-      .where(routes[:path].matches_any(wildcard_collection(FIXED_PATHS)))
-  end
-
-  # Using the query above, we just fetch the `route.path` & the `namespace.path`
-  # `route.path` is the part of the route that is now incorrect
-  # `namespace.path` is what it should be
-  # We can use `route.path` to find all the namespaces that need to be fixed
-  # And we can use `namespace.path` to apply the correct name.
-  #
-  def paths_and_corrections
-    connection.select_all(
-      wrongly_renamed.select(routes[:path], namespaces[:path].as('namespace_path')).to_sql
-    )
-  end
-
-  # This can be used to limit the `update_in_batches` call to all routes for a
-  # single namespace, note the `/` that's what went wrong in the initial migration.
-  #
-  def routes_in_namespace_query(namespace)
-    routes[:path].matches_any([namespace, "#{namespace}/%"])
-  end
-
-  def up
-    paths_and_corrections.each do |root_namespace|
-      wrong_path = root_namespace['path']
-      correct_path = root_namespace['namespace_path']
-      replace_statement = replace_sql(Route.arel_table[:path], wrong_path, correct_path)
-
-      update_column_in_batches(:routes, :path, replace_statement) do |table, query|
-        query.where(routes_in_namespace_query(wrong_path))
-      end
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170523073948_remove_assignee_id_from_issue.rb b/db/post_migrate/20170523073948_remove_assignee_id_from_issue.rb
deleted file mode 100644
index d75bbb2f612..00000000000
--- a/db/post_migrate/20170523073948_remove_assignee_id_from_issue.rb
+++ /dev/null
@@ -1,48 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveAssigneeIdFromIssue < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # When a migration requires downtime you **must** uncomment the following
-  # constant and define a short and easy to understand explanation as to why the
-  # migration requires downtime.
-  # DOWNTIME_REASON = ''
-
-  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
-  # "add_column_with_default" you must disable the use of transactions
-  # as these methods can not run in an existing transaction.
-  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
-  # that either of them is the _only_ method called in the migration,
-  # any other changes should go in a separate migration.
-  # This ensures that upon failure _only_ the index creation or removing fails
-  # and can be retried or reverted easily.
-  #
-  # To disable transactions uncomment the following line and remove these
-  # comments:
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    self.table_name = 'issues'
-
-    include ::EachBatch
-  end
-
-  def up
-    remove_column :issues, :assignee_id
-  end
-
-  def down
-    add_column :issues, :assignee_id, :integer
-    add_concurrent_index :issues, :assignee_id
-
-    update_value = Arel.sql('(SELECT user_id FROM issue_assignees WHERE issue_assignees.issue_id = issues.id LIMIT 1)')
-
-    # This is only used in the down step, so we can ignore the RuboCop warning
-    # about large tables, as this is very unlikely to be run on GitLab.com
-    update_column_in_batches(:issues, :assignee_id, update_value) # rubocop:disable Migration/UpdateLargeTable
-  end
-end
diff --git a/db/post_migrate/20170523083112_migrate_old_artifacts.rb b/db/post_migrate/20170523083112_migrate_old_artifacts.rb
deleted file mode 100644
index 55e155c7619..00000000000
--- a/db/post_migrate/20170523083112_migrate_old_artifacts.rb
+++ /dev/null
@@ -1,72 +0,0 @@
-class MigrateOldArtifacts < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  # This uses special heuristic to find potential candidates for data migration
-  # Read more about this here: https://gitlab.com/gitlab-org/gitlab-ce/issues/32036#note_30422345
-
-  def up
-    builds_with_artifacts.find_each do |build|
-      build.migrate_artifacts!
-    end
-  end
-
-  def down
-  end
-
-  private
-
-  def builds_with_artifacts
-    Build.with_artifacts
-      .joins('JOIN projects ON projects.id = ci_builds.project_id')
-      .where('ci_builds.id < ?', min_id)
-      .where('projects.ci_id IS NOT NULL')
-      .select('id', 'created_at', 'project_id', 'projects.ci_id AS ci_id')
-  end
-
-  def min_id
-    Build.joins('JOIN projects ON projects.id = ci_builds.project_id')
-      .where('projects.ci_id IS NULL')
-      .pluck('coalesce(min(ci_builds.id), 0)')
-      .first
-  end
-
-  class Build < ActiveRecord::Base
-    self.table_name = 'ci_builds'
-
-    scope :with_artifacts, -> { where.not(artifacts_file: [nil, '']) }
-
-    def migrate_artifacts!
-      return unless File.exist?(source_artifacts_path)
-      return if File.exist?(target_artifacts_path)
-
-      ensure_target_path
-
-      FileUtils.move(source_artifacts_path, target_artifacts_path)
-    end
-
-    private
-
-    def source_artifacts_path
-      @source_artifacts_path ||=
-        File.join(Gitlab.config.artifacts.path,
-          created_at.utc.strftime('%Y_%m'),
-          ci_id.to_s, id.to_s)
-    end
-
-    def target_artifacts_path
-      @target_artifacts_path ||=
-        File.join(Gitlab.config.artifacts.path,
-          created_at.utc.strftime('%Y_%m'),
-          project_id.to_s, id.to_s)
-    end
-
-    def ensure_target_path
-      directory = File.dirname(target_artifacts_path)
-      FileUtils.mkdir_p(directory) unless Dir.exist?(directory)
-    end
-  end
-end
diff --git a/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb b/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb
deleted file mode 100644
index 59b8daaffdf..00000000000
--- a/db/post_migrate/20170525140254_rename_all_reserved_paths_again.rb
+++ /dev/null
@@ -1,102 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RenameAllReservedPathsAgain < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::RenameReservedPathsMigration::V1
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  TOP_LEVEL_ROUTES = %w[
-      -
-      .well-known
-      abuse_reports
-      admin
-      api
-      assets
-      autocomplete
-      ci
-      dashboard
-      explore
-      files
-      groups
-      health_check
-      help
-      import
-      invites
-      jwt
-      koding
-      notification_settings
-      oauth
-      profile
-      projects
-      public
-      robots.txt
-      s
-      search
-      sent_notifications
-      snippets
-      u
-      unicorn_test
-      unsubscribes
-      uploads
-      users
-  ].freeze
-
-  PROJECT_WILDCARD_ROUTES = %w[
-      badges
-      blame
-      blob
-      builds
-      commits
-      create
-      create_dir
-      edit
-      environments/folders
-      files
-      find_file
-      gitlab-lfs/objects
-      info/lfs/objects
-      new
-      preview
-      raw
-      refs
-      tree
-      update
-      wikis
-    ].freeze
-
-  GROUP_ROUTES = %w[
-      activity
-      analytics
-      audit_events
-      avatar
-      edit
-      group_members
-      hooks
-      issues
-      labels
-      ldap
-      ldap_group_links
-      merge_requests
-      milestones
-      notification_setting
-      pipeline_quota
-      projects
-  ].freeze
-
-  def up
-    disable_statement_timeout do
-      TOP_LEVEL_ROUTES.each { |route| rename_root_paths(route) }
-      PROJECT_WILDCARD_ROUTES.each { |route| rename_wildcard_paths(route) }
-      GROUP_ROUTES.each { |route| rename_child_paths(route) }
-    end
-  end
-
-  def down
-    disable_statement_timeout do
-      revert_renames
-    end
-  end
-end
diff --git a/db/post_migrate/20170526185842_migrate_pipeline_stages.rb b/db/post_migrate/20170526185842_migrate_pipeline_stages.rb
deleted file mode 100644
index 53743fc16e6..00000000000
--- a/db/post_migrate/20170526185842_migrate_pipeline_stages.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-class MigratePipelineStages < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    disable_statement_timeout do
-      execute <<-SQL.strip_heredoc
-        INSERT INTO ci_stages (project_id, pipeline_id, name)
-          SELECT project_id, commit_id, stage FROM ci_builds
-            WHERE stage IS NOT NULL
-            AND stage_id IS NULL
-            AND EXISTS (SELECT 1 FROM projects WHERE projects.id = ci_builds.project_id)
-            AND EXISTS (SELECT 1 FROM ci_pipelines WHERE ci_pipelines.id = ci_builds.commit_id)
-            GROUP BY project_id, commit_id, stage
-            ORDER BY MAX(stage_idx)
-      SQL
-    end
-  end
-end
diff --git a/db/post_migrate/20170526185858_create_index_in_pipeline_stages.rb b/db/post_migrate/20170526185858_create_index_in_pipeline_stages.rb
deleted file mode 100644
index dc7b1d6d026..00000000000
--- a/db/post_migrate/20170526185858_create_index_in_pipeline_stages.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class CreateIndexInPipelineStages < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:ci_stages, [:pipeline_id, :name])
-  end
-
-  def down
-    remove_concurrent_index(:ci_stages, [:pipeline_id, :name])
-  end
-end
diff --git a/db/post_migrate/20170526185901_remove_stage_id_index_from_builds.rb b/db/post_migrate/20170526185901_remove_stage_id_index_from_builds.rb
deleted file mode 100644
index de473e7bb91..00000000000
--- a/db/post_migrate/20170526185901_remove_stage_id_index_from_builds.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-class RemoveStageIdIndexFromBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    if index_exists?(:ci_builds, :stage_id)
-      remove_foreign_key(:ci_builds, column: :stage_id)
-      remove_concurrent_index(:ci_builds, :stage_id)
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170526185921_migrate_build_stage_reference.rb b/db/post_migrate/20170526185921_migrate_build_stage_reference.rb
deleted file mode 100644
index a9b392314fa..00000000000
--- a/db/post_migrate/20170526185921_migrate_build_stage_reference.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class MigrateBuildStageReference < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  ##
-  # This is an empty migration, content has been moved to a new one:
-  # post migrate 20170526190000 MigrateBuildStageReferenceAgain
-  #
-  # See gitlab-org/gitlab-ce!12337 for more details.
-
-  def up
-    # noop
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170526190000_migrate_build_stage_reference_again.rb b/db/post_migrate/20170526190000_migrate_build_stage_reference_again.rb
deleted file mode 100644
index 01b6cf3a158..00000000000
--- a/db/post_migrate/20170526190000_migrate_build_stage_reference_again.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class MigrateBuildStageReferenceAgain < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    stage_id = Arel.sql <<-SQL.strip_heredoc
-      (SELECT id FROM ci_stages
-         WHERE ci_stages.pipeline_id = ci_builds.commit_id
-           AND ci_stages.name = ci_builds.stage)
-    SQL
-
-    disable_statement_timeout do
-      update_column_in_batches(:ci_builds, :stage_id, stage_id) do |table, query|
-        query.where(table[:stage_id].eq(nil))
-      end
-    end
-  end
-
-  def down
-    disable_statement_timeout do
-      update_column_in_batches(:ci_builds, :stage_id, nil)
-    end
-  end
-end
diff --git a/db/post_migrate/20170531203055_cleanup_users_ldap_email_rename.rb b/db/post_migrate/20170531203055_cleanup_users_ldap_email_rename.rb
deleted file mode 100644
index 3d75c7e3eaf..00000000000
--- a/db/post_migrate/20170531203055_cleanup_users_ldap_email_rename.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class CleanupUsersLdapEmailRename < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    cleanup_concurrent_column_rename :users, :ldap_email, :external_email
-  end
-
-  def down
-    # rubocop:disable Migration/UpdateLargeTable
-    rename_column_concurrently :users, :external_email, :ldap_email
-  end
-end
diff --git a/db/post_migrate/20170606202615_move_appearance_to_system_dir.rb b/db/post_migrate/20170606202615_move_appearance_to_system_dir.rb
deleted file mode 100644
index fb9ac8d6daf..00000000000
--- a/db/post_migrate/20170606202615_move_appearance_to_system_dir.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-class MoveAppearanceToSystemDir < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-  DIRECTORY_TO_MOVE = 'appearance'.freeze
-
-  def up
-    source = File.join(old_upload_dir, DIRECTORY_TO_MOVE)
-    destination = File.join(new_upload_dir, DIRECTORY_TO_MOVE)
-
-    move_directory(source, destination)
-  end
-
-  def down
-    source = File.join(new_upload_dir, DIRECTORY_TO_MOVE)
-    destination = File.join(old_upload_dir, DIRECTORY_TO_MOVE)
-
-    move_directory(source, destination)
-  end
-
-  def move_directory(source, destination)
-    unless file_storage?
-      say 'Not using file storage, skipping'
-      return
-    end
-
-    unless File.directory?(source)
-      say "#{source} did not exist, skipping"
-      return
-    end
-
-    if File.directory?(destination)
-      say "#{destination} already existed, skipping"
-      return
-    end
-
-    say "Moving #{source} -> #{destination}"
-    FileUtils.mv(source, destination)
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-
-  def base_directory
-    Rails.root
-  end
-
-  def old_upload_dir
-    File.join(base_directory, "public", "uploads")
-  end
-
-  def new_upload_dir
-    File.join(base_directory, "public", "uploads", "-", "system")
-  end
-end
diff --git a/db/post_migrate/20170607121233_convert_custom_notification_settings_to_columns.rb b/db/post_migrate/20170607121233_convert_custom_notification_settings_to_columns.rb
deleted file mode 100644
index 8ff26130cba..00000000000
--- a/db/post_migrate/20170607121233_convert_custom_notification_settings_to_columns.rb
+++ /dev/null
@@ -1,55 +0,0 @@
-class ConvertCustomNotificationSettingsToColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class NotificationSetting < ActiveRecord::Base
-    self.table_name = 'notification_settings'
-
-    store :events, coder: JSON
-  end
-
-  EMAIL_EVENTS = [
-    :new_note,
-    :new_issue,
-    :reopen_issue,
-    :close_issue,
-    :reassign_issue,
-    :new_merge_request,
-    :reopen_merge_request,
-    :close_merge_request,
-    :reassign_merge_request,
-    :merge_merge_request,
-    :failed_pipeline,
-    :success_pipeline
-  ]
-
-  # We only need to migrate (up or down) rows where at least one of these
-  # settings is set.
-  def up
-    NotificationSetting.where("events LIKE '%true%'").find_each do |notification_setting|
-      EMAIL_EVENTS.each do |event|
-        notification_setting[event] = notification_setting.events[event]
-      end
-
-      notification_setting[:events] = nil
-      notification_setting.save!
-    end
-  end
-
-  def down
-    NotificationSetting.where(EMAIL_EVENTS.join(' OR ')).find_each do |notification_setting|
-      events = {}
-
-      EMAIL_EVENTS.each do |event|
-        events[event] = !!notification_setting.public_send(event)
-        notification_setting[event] = nil
-      end
-
-      notification_setting[:events] = events
-      notification_setting.save!
-    end
-  end
-end
diff --git a/db/post_migrate/20170609183112_remove_position_from_issuables.rb b/db/post_migrate/20170609183112_remove_position_from_issuables.rb
deleted file mode 100644
index edad0a502b4..00000000000
--- a/db/post_migrate/20170609183112_remove_position_from_issuables.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class RemovePositionFromIssuables < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def change
-    remove_column :issues, :position, :integer
-    remove_column :merge_requests, :position, :integer
-  end
-end
diff --git a/db/post_migrate/20170612071012_move_personal_snippets_files.rb b/db/post_migrate/20170612071012_move_personal_snippets_files.rb
deleted file mode 100644
index d32d92637fa..00000000000
--- a/db/post_migrate/20170612071012_move_personal_snippets_files.rb
+++ /dev/null
@@ -1,92 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-class MovePersonalSnippetsFiles < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    return unless file_storage?
-
-    @source_relative_location = File.join('/uploads', 'personal_snippet')
-    @destination_relative_location = File.join('/uploads', '-', 'system', 'personal_snippet')
-
-    move_personal_snippet_files
-  end
-
-  def down
-    return unless file_storage?
-
-    @source_relative_location = File.join('/uploads', '-', 'system', 'personal_snippet')
-    @destination_relative_location = File.join('/uploads', 'personal_snippet')
-
-    move_personal_snippet_files
-  end
-
-  def move_personal_snippet_files
-    query = "SELECT uploads.path, uploads.model_id, snippets.description FROM uploads "\
-            "INNER JOIN snippets ON snippets.id = uploads.model_id WHERE uploader = 'PersonalFileUploader'"
-    select_all(query).each do |upload|
-      secret = upload['path'].split('/')[0]
-      file_name = upload['path'].split('/')[1]
-
-      next unless move_file(upload['model_id'], secret, file_name)
-
-      update_markdown(upload['model_id'], secret, file_name, upload['description'])
-    end
-  end
-
-  def move_file(snippet_id, secret, file_name)
-    source_dir = File.join(base_directory, @source_relative_location, snippet_id.to_s, secret)
-    destination_dir = File.join(base_directory, @destination_relative_location, snippet_id.to_s, secret)
-
-    source_file_path = File.join(source_dir, file_name)
-    destination_file_path = File.join(destination_dir, file_name)
-
-    unless File.exist?(source_file_path)
-      say "Source file `#{source_file_path}` doesn't exist. Skipping."
-      return
-    end
-
-    say "Moving file #{source_file_path} -> #{destination_file_path}"
-
-    FileUtils.mkdir_p(destination_dir)
-    FileUtils.move(source_file_path, destination_file_path)
-
-    true
-  end
-
-  def update_markdown(snippet_id, secret, file_name, description)
-    source_markdown_path = File.join(@source_relative_location, snippet_id.to_s, secret, file_name)
-    destination_markdown_path = File.join(@destination_relative_location, snippet_id.to_s, secret, file_name)
-
-    source_markdown = "](#{source_markdown_path})"
-    destination_markdown = "](#{destination_markdown_path})"
-
-    if description.present?
-      description = description.gsub(source_markdown, destination_markdown)
-      quoted_description = quote_string(description)
-
-      execute("UPDATE snippets SET description = '#{quoted_description}', description_html = NULL "\
-              "WHERE id = #{snippet_id}")
-    end
-
-    query = "SELECT id, note FROM notes WHERE noteable_id = #{snippet_id} "\
-            "AND noteable_type = 'Snippet' AND note IS NOT NULL"
-    select_all(query).each do |note|
-      text = note['note'].gsub(source_markdown, destination_markdown)
-      quoted_text = quote_string(text)
-
-      execute("UPDATE notes SET note = '#{quoted_text}', note_html = NULL WHERE id = #{note['id']}")
-    end
-  end
-
-  def base_directory
-    File.join(Rails.root, 'public')
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-end
diff --git a/db/post_migrate/20170613111224_clean_appearance_symlinks.rb b/db/post_migrate/20170613111224_clean_appearance_symlinks.rb
deleted file mode 100644
index 14511bff3db..00000000000
--- a/db/post_migrate/20170613111224_clean_appearance_symlinks.rb
+++ /dev/null
@@ -1,53 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanAppearanceSymlinks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  def up
-    return unless file_storage?
-
-    symlink_location = File.join(old_upload_dir, dir)
-
-    return unless File.symlink?(symlink_location)
-
-    say "removing symlink: #{symlink_location}"
-    FileUtils.rm(symlink_location)
-  end
-
-  def down
-    return unless file_storage?
-
-    symlink = File.join(old_upload_dir, dir)
-    destination = File.join(new_upload_dir, dir)
-
-    return if File.directory?(symlink)
-    return unless File.directory?(destination)
-
-    say "Creating symlink #{symlink} -> #{destination}"
-    FileUtils.ln_s(destination, symlink)
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-
-  def dir
-    'appearance'
-  end
-
-  def base_directory
-    Rails.root
-  end
-
-  def old_upload_dir
-    File.join(base_directory, "public", "uploads")
-  end
-
-  def new_upload_dir
-    File.join(base_directory, "public", "uploads", "system")
-  end
-end
diff --git a/db/post_migrate/20170621102400_add_stage_id_index_to_builds.rb b/db/post_migrate/20170621102400_add_stage_id_index_to_builds.rb
deleted file mode 100644
index cca9b488547..00000000000
--- a/db/post_migrate/20170621102400_add_stage_id_index_to_builds.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class AddStageIdIndexToBuilds < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  ##
-  # Improved in 20170703102400_add_stage_id_foreign_key_to_builds.rb
-  #
-
-  def up
-    # noop
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170627101016_schedule_event_migrations.rb b/db/post_migrate/20170627101016_schedule_event_migrations.rb
deleted file mode 100644
index f026a86bc0f..00000000000
--- a/db/post_migrate/20170627101016_schedule_event_migrations.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class ScheduleEventMigrations < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BUFFER_SIZE = 1000
-
-  disable_ddl_transaction!
-
-  class Event < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'events'
-  end
-
-  def up
-    jobs = []
-
-    Event.each_batch(of: 1000) do |relation|
-      min, max = relation.pluck('MIN(id), MAX(id)').first
-
-      if jobs.length == BUFFER_SIZE
-        # We push multiple jobs at a time to reduce the time spent in
-        # Sidekiq/Redis operations. We're using this buffer based approach so we
-        # don't need to run additional queries for every range.
-        BackgroundMigrationWorker.bulk_perform_async(jobs)
-        jobs.clear
-      end
-
-      jobs << ['MigrateEventsToPushEventPayloads', [min, max]]
-    end
-
-    BackgroundMigrationWorker.bulk_perform_async(jobs) unless jobs.empty?
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170628080858_migrate_stage_id_reference_in_background.rb b/db/post_migrate/20170628080858_migrate_stage_id_reference_in_background.rb
deleted file mode 100644
index 36aac3df071..00000000000
--- a/db/post_migrate/20170628080858_migrate_stage_id_reference_in_background.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-class MigrateStageIdReferenceInBackground < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BATCH_SIZE = 10000
-  RANGE_SIZE = 1000
-  MIGRATION = 'MigrateBuildStageIdReference'.freeze
-
-  disable_ddl_transaction!
-
-  class Build < ActiveRecord::Base
-    self.table_name = 'ci_builds'
-    include ::EachBatch
-  end
-
-  ##
-  # It will take around 3 days to process 20M ci_builds.
-  #
-  def up
-    Build.where(stage_id: nil).each_batch(of: BATCH_SIZE) do |relation, index|
-      relation.each_batch(of: RANGE_SIZE) do |relation|
-        range = relation.pluck('MIN(id)', 'MAX(id)').first
-
-        BackgroundMigrationWorker
-          .perform_in(index * 2.minutes, MIGRATION, range)
-      end
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb b/db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb
deleted file mode 100644
index 87268fb4b31..00000000000
--- a/db/post_migrate/20170629180131_cleanup_application_settings_signin_enabled_rename.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class CleanupApplicationSettingsSigninEnabledRename < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    cleanup_concurrent_column_rename :application_settings, :signin_enabled, :password_authentication_enabled
-  end
-
-  def down
-    rename_column_concurrently :application_settings, :password_authentication_enabled, :signin_enabled
-  end
-end
diff --git a/db/post_migrate/20170711145558_migrate_stages_statuses.rb b/db/post_migrate/20170711145558_migrate_stages_statuses.rb
deleted file mode 100644
index 8ba69ea4dce..00000000000
--- a/db/post_migrate/20170711145558_migrate_stages_statuses.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-class MigrateStagesStatuses < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  BATCH_SIZE = 10000
-  RANGE_SIZE = 100
-  MIGRATION = 'MigrateStageStatus'.freeze
-
-  class Stage < ActiveRecord::Base
-    self.table_name = 'ci_stages'
-    include ::EachBatch
-  end
-
-  def up
-    Stage.where(status: nil).each_batch(of: BATCH_SIZE) do |relation, index|
-      relation.each_batch(of: RANGE_SIZE) do |batch|
-        range = batch.pluck('MIN(id)', 'MAX(id)').first
-        delay = index * 5.minutes
-
-        BackgroundMigrationWorker.perform_in(delay, MIGRATION, range)
-      end
-    end
-  end
-
-  def down
-    disable_statement_timeout do
-      # rubocop:disable Migration/UpdateLargeTable
-      update_column_in_batches(:ci_stages, :status, nil)
-    end
-  end
-end
diff --git a/db/post_migrate/20170717111152_cleanup_move_system_upload_folder_symlink.rb b/db/post_migrate/20170717111152_cleanup_move_system_upload_folder_symlink.rb
deleted file mode 100644
index 392c4f71532..00000000000
--- a/db/post_migrate/20170717111152_cleanup_move_system_upload_folder_symlink.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanupMoveSystemUploadFolderSymlink < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    if File.symlink?(old_directory)
-      say "Removing #{old_directory} -> #{new_directory} symlink"
-      FileUtils.rm(old_directory)
-    else
-      say "Symlink #{old_directory} non existent, nothing to do."
-    end
-  end
-
-  def down
-    if File.directory?(new_directory)
-      say "Symlinking #{old_directory} -> #{new_directory}"
-      FileUtils.ln_s(new_directory, old_directory) unless File.exist?(old_directory)
-    else
-      say "#{new_directory} doesn't exist, skipping."
-    end
-  end
-
-  def new_directory
-    File.join(base_directory, '-', 'system')
-  end
-
-  def old_directory
-    File.join(base_directory, 'system')
-  end
-
-  def base_directory
-    File.join(Rails.root, 'public', 'uploads')
-  end
-end
diff --git a/db/post_migrate/20170717150329_enqueue_migrate_system_uploads_to_new_folder.rb b/db/post_migrate/20170717150329_enqueue_migrate_system_uploads_to_new_folder.rb
deleted file mode 100644
index fdd990ae2e5..00000000000
--- a/db/post_migrate/20170717150329_enqueue_migrate_system_uploads_to_new_folder.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-class EnqueueMigrateSystemUploadsToNewFolder < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  OLD_FOLDER = 'uploads/system/'
-  NEW_FOLDER = 'uploads/-/system/'
-
-  disable_ddl_transaction!
-
-  def up
-    BackgroundMigrationWorker.perform_async('MigrateSystemUploadsToNewFolder',
-                                            [OLD_FOLDER, NEW_FOLDER])
-  end
-
-  def down
-    BackgroundMigrationWorker.perform_async('MigrateSystemUploadsToNewFolder',
-                                            [NEW_FOLDER, OLD_FOLDER])
-  end
-end
diff --git a/db/post_migrate/20170719150301_merge_issuable_reopened_into_opened_state.rb b/db/post_migrate/20170719150301_merge_issuable_reopened_into_opened_state.rb
deleted file mode 100644
index 7af1d04f0cc..00000000000
--- a/db/post_migrate/20170719150301_merge_issuable_reopened_into_opened_state.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeIssuableReopenedIntoOpenedState < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    self.table_name = 'issues'
-
-    include EachBatch
-  end
-
-  class MergeRequest < ActiveRecord::Base
-    self.table_name = 'merge_requests'
-
-    include EachBatch
-  end
-
-  def up
-    [Issue, MergeRequest].each do |model|
-      say "Changing #{model.table_name}.state from 'reopened' to 'opened'"
-
-      model.where(state: 'reopened').each_batch do |batch|
-        batch.update_all(state: 'opened')
-      end
-    end
-  end
-end
diff --git a/db/post_migrate/20170728101014_remove_events_from_notification_settings.rb b/db/post_migrate/20170728101014_remove_events_from_notification_settings.rb
deleted file mode 100644
index f1b0a1daec5..00000000000
--- a/db/post_migrate/20170728101014_remove_events_from_notification_settings.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class RemoveEventsFromNotificationSettings < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_column :notification_settings, :events, :text
-  end
-end
diff --git a/db/post_migrate/20170803090603_calculate_conv_dev_index_percentages.rb b/db/post_migrate/20170803090603_calculate_conv_dev_index_percentages.rb
deleted file mode 100644
index a148586ca89..00000000000
--- a/db/post_migrate/20170803090603_calculate_conv_dev_index_percentages.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-class CalculateConvDevIndexPercentages < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  class ConversationalDevelopmentIndexMetric < ActiveRecord::Base
-    self.table_name = 'conversational_development_index_metrics'
-
-    METRICS = %w[boards ci_pipelines deployments environments issues merge_requests milestones notes
-                 projects_prometheus_active service_desk_issues]
-  end
-
-  def up
-    ConversationalDevelopmentIndexMetric.find_each do |conv_dev_index|
-      update = []
-
-      ConversationalDevelopmentIndexMetric::METRICS.each do |metric|
-        instance_score = conv_dev_index["instance_#{metric}"].to_f
-        leader_score = conv_dev_index["leader_#{metric}"].to_f
-
-        percentage = leader_score.zero? ? 0.0 : (instance_score / leader_score) * 100
-        update << "percentage_#{metric} = '#{percentage}'"
-      end
-
-      execute("UPDATE conversational_development_index_metrics SET #{update.join(',')} WHERE id = #{conv_dev_index.id}")
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170807160457_remove_locked_at_column_from_merge_requests.rb b/db/post_migrate/20170807160457_remove_locked_at_column_from_merge_requests.rb
deleted file mode 100644
index 6dc49211e5a..00000000000
--- a/db/post_migrate/20170807160457_remove_locked_at_column_from_merge_requests.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class RemoveLockedAtColumnFromMergeRequests < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    remove_column :merge_requests, :locked_at
-  end
-
-  def down
-    add_column :merge_requests, :locked_at, :datetime_with_timezone
-  end
-end
diff --git a/db/post_migrate/20170807190736_move_personal_snippet_files_into_correct_folder.rb b/db/post_migrate/20170807190736_move_personal_snippet_files_into_correct_folder.rb
deleted file mode 100644
index 8341ac39c25..00000000000
--- a/db/post_migrate/20170807190736_move_personal_snippet_files_into_correct_folder.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MovePersonalSnippetFilesIntoCorrectFolder < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-  NEW_DIRECTORY = File.join('/uploads', '-', 'system', 'personal_snippet')
-  OLD_DIRECTORY = File.join('/uploads', 'system', 'personal_snippet')
-
-  def up
-    return unless file_storage?
-
-    BackgroundMigrationWorker.perform_async('MovePersonalSnippetFiles',
-                                            [OLD_DIRECTORY, NEW_DIRECTORY])
-  end
-
-  def down
-    return unless file_storage?
-
-    BackgroundMigrationWorker.perform_async('MovePersonalSnippetFiles',
-                                            [NEW_DIRECTORY, OLD_DIRECTORY])
-  end
-
-  def file_storage?
-    CarrierWave::Uploader::Base.storage == CarrierWave::Storage::File
-  end
-end
diff --git a/db/post_migrate/20170815060945_remove_duplicate_mr_events.rb b/db/post_migrate/20170815060945_remove_duplicate_mr_events.rb
deleted file mode 100644
index fdc126b8fd6..00000000000
--- a/db/post_migrate/20170815060945_remove_duplicate_mr_events.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveDuplicateMrEvents < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-  DOWNTIME = false
-
-  class Event < ActiveRecord::Base
-    self.table_name = 'events'
-  end
-
-  def up
-    base_condition = "action = 1 AND target_type = 'MergeRequest' AND created_at > '2017-08-13'"
-    Event.select('target_id, count(*)')
-      .where(base_condition)
-      .group('target_id').having('count(*) > 1').each do |event|
-      duplicates = Event.where("#{base_condition} AND target_id = #{event.target_id}").pluck(:id)
-      duplicates.shift
-
-      Event.where(id: duplicates).delete_all
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170816102555_cleanup_nonexisting_namespace_pending_delete_projects.rb b/db/post_migrate/20170816102555_cleanup_nonexisting_namespace_pending_delete_projects.rb
deleted file mode 100644
index 27656fd926d..00000000000
--- a/db/post_migrate/20170816102555_cleanup_nonexisting_namespace_pending_delete_projects.rb
+++ /dev/null
@@ -1,54 +0,0 @@
-# Follow up of CleanupNamespacelessPendingDeleteProjects and it cleans
-# all projects with `pending_delete = true` and for which the
-# namespace no longer exists.
-class CleanupNonexistingNamespacePendingDeleteProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Project < ActiveRecord::Base
-    self.table_name = 'projects'
-
-    include ::EachBatch
-  end
-
-  class Namespace < ActiveRecord::Base
-    self.table_name = 'namespaces'
-  end
-
-  def up
-    find_projects.each_batch do |batch|
-      args = batch.pluck(:id).map { |id| [id] }
-
-      NamespacelessProjectDestroyWorker.bulk_perform_async(args)
-    end
-  end
-
-  def down
-    # NOOP
-  end
-
-  private
-
-  def find_projects
-    projects = Project.arel_table
-    namespaces = Namespace.arel_table
-
-    namespace_query = namespaces.project(1)
-                        .where(namespaces[:id].eq(projects[:namespace_id]))
-                        .exists.not
-
-    # SELECT "projects"."id"
-    # FROM "projects"
-    # WHERE "projects"."pending_delete" = 't'
-    #   AND (NOT (EXISTS
-    #               (SELECT 1
-    #                FROM "namespaces"
-    #                WHERE "namespaces"."id" = "projects"."namespace_id")))
-    Project.where(projects[:pending_delete].eq(true))
-      .where(namespace_query)
-      .select(:id)
-  end
-end
diff --git a/db/post_migrate/20170822101017_migrate_pipeline_sidekiq_queues.rb b/db/post_migrate/20170822101017_migrate_pipeline_sidekiq_queues.rb
deleted file mode 100644
index 825bc9250bd..00000000000
--- a/db/post_migrate/20170822101017_migrate_pipeline_sidekiq_queues.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class MigratePipelineSidekiqQueues < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    sidekiq_queue_migrate 'build', to: 'pipeline_default'
-    sidekiq_queue_migrate 'pipeline', to: 'pipeline_default'
-  end
-
-  def down
-    sidekiq_queue_migrate 'pipeline_default', to: 'pipeline'
-    sidekiq_queue_migrate 'pipeline_processing', to: 'pipeline'
-    sidekiq_queue_migrate 'pipeline_hooks', to: 'pipeline'
-    sidekiq_queue_migrate 'pipeline_cache', to: 'pipeline'
-  end
-end
diff --git a/db/post_migrate/20170828170502_post_deploy_migrate_user_external_mail_data.rb b/db/post_migrate/20170828170502_post_deploy_migrate_user_external_mail_data.rb
deleted file mode 100644
index 533155aeb7a..00000000000
--- a/db/post_migrate/20170828170502_post_deploy_migrate_user_external_mail_data.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PostDeployMigrateUserExternalMailData < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class User < ActiveRecord::Base
-    self.table_name = 'users'
-
-    include EachBatch
-  end
-
-  class UserSyncedAttributesMetadata < ActiveRecord::Base
-    self.table_name = 'user_synced_attributes_metadata'
-
-    include EachBatch
-  end
-
-  def up
-    User.each_batch do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      execute <<-EOF
-        INSERT INTO user_synced_attributes_metadata (user_id, provider, email_synced)
-        SELECT id, email_provider, external_email
-        FROM users
-        WHERE external_email = TRUE
-        AND NOT EXISTS (
-          SELECT true
-          FROM user_synced_attributes_metadata
-          WHERE user_id = users.id
-          AND (provider = users.email_provider OR (provider IS NULL AND users.email_provider IS NULL))
-        )
-        AND id BETWEEN #{start_id} AND #{end_id}
-      EOF
-    end
-  end
-
-  def down
-    UserSyncedAttributesMetadata.each_batch do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      execute <<-EOF
-        UPDATE users
-        SET users.email_provider = metadata.provider, users.external_email = metadata.email_synced
-        FROM user_synced_attributes_metadata as metadata, users
-        WHERE metadata.email_synced = TRUE
-        AND metadata.user_id = users.id
-        AND id BETWEEN #{start_id} AND #{end_id}
-      EOF
-    end
-  end
-end
diff --git a/db/post_migrate/20170828170513_remove_user_email_provider_column.rb b/db/post_migrate/20170828170513_remove_user_email_provider_column.rb
deleted file mode 100644
index bfc8aede540..00000000000
--- a/db/post_migrate/20170828170513_remove_user_email_provider_column.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveUserEmailProviderColumn < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_column :users, :email_provider, :string
-  end
-end
diff --git a/db/post_migrate/20170828170516_remove_user_external_mail_columns.rb b/db/post_migrate/20170828170516_remove_user_external_mail_columns.rb
deleted file mode 100644
index 0104955e5c8..00000000000
--- a/db/post_migrate/20170828170516_remove_user_external_mail_columns.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveUserExternalMailColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_column :users, :external_email, :boolean
-  end
-end
diff --git a/db/post_migrate/20170830084744_destroy_gpg_signatures.rb b/db/post_migrate/20170830084744_destroy_gpg_signatures.rb
deleted file mode 100644
index 2945eb9fde6..00000000000
--- a/db/post_migrate/20170830084744_destroy_gpg_signatures.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class DestroyGpgSignatures < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    truncate(:gpg_signatures)
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170830150306_drop_events_for_migration_table.rb b/db/post_migrate/20170830150306_drop_events_for_migration_table.rb
deleted file mode 100644
index 3538b52b004..00000000000
--- a/db/post_migrate/20170830150306_drop_events_for_migration_table.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class DropEventsForMigrationTable < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Event < ActiveRecord::Base
-    include EachBatch
-  end
-
-  def up
-    transaction do
-      drop_table :events_for_migration
-    end
-  end
-
-  def down
-    create_table :events_for_migration do |t|
-      t.string :target_type, index: true
-      t.integer :target_id, index: true
-      t.string :title
-      t.text :data
-      t.integer :project_id
-      t.datetime :created_at, index: true
-      t.datetime :updated_at
-      t.integer :action, index: true
-      t.integer :author_id, index: true
-
-      t.index [:project_id, :id]
-    end
-
-    Event.all.each_batch do |relation|
-      start_id, stop_id = relation.pluck('MIN(id), MAX(id)').first
-
-      execute <<-EOF.strip_heredoc
-      INSERT INTO events_for_migration (target_type, target_id, project_id, created_at, updated_at, action, author_id)
-      SELECT target_type, target_id, project_id, created_at, updated_at, action, author_id
-      FROM events
-      WHERE id BETWEEN #{start_id} AND #{stop_id}
-      EOF
-    end
-  end
-end
diff --git a/db/post_migrate/20170831195038_remove_valid_signature_from_gpg_signatures.rb b/db/post_migrate/20170831195038_remove_valid_signature_from_gpg_signatures.rb
deleted file mode 100644
index 8e264c1ab41..00000000000
--- a/db/post_migrate/20170831195038_remove_valid_signature_from_gpg_signatures.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class RemoveValidSignatureFromGpgSignatures < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    remove_column :gpg_signatures, :valid_signature
-  end
-
-  def down
-    add_column :gpg_signatures, :valid_signature, :boolean
-  end
-end
diff --git a/db/post_migrate/20170907170235_delete_conflicting_redirect_routes.rb b/db/post_migrate/20170907170235_delete_conflicting_redirect_routes.rb
deleted file mode 100644
index 95abf2474dd..00000000000
--- a/db/post_migrate/20170907170235_delete_conflicting_redirect_routes.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class DeleteConflictingRedirectRoutes < ActiveRecord::Migration[4.2]
-  def up
-    # No-op.
-    # See https://gitlab.com/gitlab-com/infrastructure/issues/3460#note_53223252
-  end
-
-  def down
-    # nothing
-  end
-end
diff --git a/db/post_migrate/20170913180600_fix_projects_without_project_feature.rb b/db/post_migrate/20170913180600_fix_projects_without_project_feature.rb
deleted file mode 100644
index bbc624ac7c0..00000000000
--- a/db/post_migrate/20170913180600_fix_projects_without_project_feature.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-class FixProjectsWithoutProjectFeature < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  def up
-    # Deletes corrupted project features
-    sql = "DELETE FROM project_features WHERE project_id IS NULL"
-    execute(sql)
-
-    # Creates missing project features with private visibility
-    sql =
-      %Q{
-        INSERT INTO project_features(project_id, repository_access_level, issues_access_level, merge_requests_access_level, wiki_access_level,
-        builds_access_level, snippets_access_level, created_at, updated_at)
-          SELECT projects.id as project_id,
-          10 as repository_access_level,
-          10 as issues_access_level,
-          10 as merge_requests_access_level,
-          10 as wiki_access_level,
-          10 as builds_access_level ,
-          10 as snippets_access_level,
-          projects.created_at,
-          projects.updated_at
-          FROM projects
-          LEFT OUTER JOIN project_features ON project_features.project_id = projects.id
-          WHERE (project_features.id IS NULL)
-      }
-
-    execute(sql)
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170921101004_normalize_ldap_extern_uids.rb b/db/post_migrate/20170921101004_normalize_ldap_extern_uids.rb
deleted file mode 100644
index 9080acee1d6..00000000000
--- a/db/post_migrate/20170921101004_normalize_ldap_extern_uids.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class NormalizeLdapExternUids < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  MIGRATION = 'NormalizeLdapExternUidsRange'.freeze
-  DELAY_INTERVAL = 10.seconds
-
-  disable_ddl_transaction!
-
-  class Identity < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'identities'
-  end
-
-  def up
-    ldap_identities = Identity.where("provider like 'ldap%'")
-
-    if ldap_identities.any?
-      queue_background_migration_jobs_by_range_at_intervals(Identity, MIGRATION, DELAY_INTERVAL)
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170927112318_update_legacy_diff_notes_type_for_import.rb b/db/post_migrate/20170927112318_update_legacy_diff_notes_type_for_import.rb
deleted file mode 100644
index 83c21c203e0..00000000000
--- a/db/post_migrate/20170927112318_update_legacy_diff_notes_type_for_import.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class UpdateLegacyDiffNotesTypeForImport < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:notes, :type, 'LegacyDiffNote') do |table, query|
-      query.where(table[:type].eq('Github::Import::LegacyDiffNote'))
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20170927112319_update_notes_type_for_import.rb b/db/post_migrate/20170927112319_update_notes_type_for_import.rb
deleted file mode 100644
index 8c691de3192..00000000000
--- a/db/post_migrate/20170927112319_update_notes_type_for_import.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# rubocop:disable Migration/UpdateLargeTable
-class UpdateNotesTypeForImport < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    update_column_in_batches(:notes, :type, 'Note') do |table, query|
-      query.where(table[:type].eq('Github::Import::Note'))
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20171012150314_remove_user_authentication_token.rb b/db/post_migrate/20171012150314_remove_user_authentication_token.rb
deleted file mode 100644
index 9313986ce85..00000000000
--- a/db/post_migrate/20171012150314_remove_user_authentication_token.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveUserAuthenticationToken < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    remove_column :users, :authentication_token
-  end
-
-  def down
-    add_column :users, :authentication_token, :string
-
-    add_concurrent_index :users, :authentication_token, unique: true
-  end
-end
diff --git a/db/post_migrate/20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb b/db/post_migrate/20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb
deleted file mode 100644
index 9c90aa611a4..00000000000
--- a/db/post_migrate/20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb
+++ /dev/null
@@ -1,98 +0,0 @@
-class MigrateGcpClustersToNewClustersArchitectures < ActiveRecord::Migration[4.2]
-  DOWNTIME = false
-
-  class GcpCluster < ActiveRecord::Base
-    self.table_name = 'gcp_clusters'
-
-    belongs_to :project, class_name: 'Project'
-
-    include EachBatch
-  end
-
-  class Cluster < ActiveRecord::Base
-    self.table_name = 'clusters'
-
-    has_many :cluster_projects, class_name: 'ClustersProject'
-    has_many :projects, through: :cluster_projects, class_name: 'Project'
-    has_one :provider_gcp, class_name: 'ProvidersGcp'
-    has_one :platform_kubernetes, class_name: 'PlatformsKubernetes'
-
-    accepts_nested_attributes_for :provider_gcp
-    accepts_nested_attributes_for :platform_kubernetes
-
-    enum platform_type: {
-      kubernetes: 1
-    }
-
-    enum provider_type: {
-      user: 0,
-      gcp: 1
-    }
-  end
-
-  class Project < ActiveRecord::Base
-    self.table_name = 'projects'
-
-    has_one :cluster_project, class_name: 'ClustersProject'
-    has_one :cluster, through: :cluster_project, class_name: 'Cluster'
-  end
-
-  class ClustersProject < ActiveRecord::Base
-    self.table_name = 'cluster_projects'
-
-    belongs_to :cluster, class_name: 'Cluster'
-    belongs_to :project, class_name: 'Project'
-  end
-
-  class ProvidersGcp < ActiveRecord::Base
-    self.table_name = 'cluster_providers_gcp'
-  end
-
-  class PlatformsKubernetes < ActiveRecord::Base
-    self.table_name = 'cluster_platforms_kubernetes'
-  end
-
-  def up
-    GcpCluster.all.find_each(batch_size: 1) do |gcp_cluster|
-      Cluster.create(
-        enabled: gcp_cluster.enabled,
-        user_id: gcp_cluster.user_id,
-        name: gcp_cluster.gcp_cluster_name,
-        provider_type: Cluster.provider_types[:gcp],
-        platform_type: Cluster.platform_types[:kubernetes],
-        projects: [gcp_cluster.project],
-        provider_gcp_attributes: {
-          status: gcp_cluster.status,
-          status_reason: gcp_cluster.status_reason,
-          gcp_project_id: gcp_cluster.gcp_project_id,
-          zone: gcp_cluster.gcp_cluster_zone,
-          num_nodes: gcp_cluster.gcp_cluster_size,
-          machine_type: gcp_cluster.gcp_machine_type,
-          operation_id: gcp_cluster.gcp_operation_id,
-          endpoint: gcp_cluster.endpoint,
-          encrypted_access_token: gcp_cluster.encrypted_gcp_token,
-          encrypted_access_token_iv: gcp_cluster.encrypted_gcp_token_iv
-        },
-        platform_kubernetes_attributes: {
-          api_url: api_url(gcp_cluster.endpoint),
-          ca_cert: gcp_cluster.ca_cert,
-          namespace: gcp_cluster.project_namespace,
-          username: gcp_cluster.username,
-          encrypted_password: gcp_cluster.encrypted_password,
-          encrypted_password_iv: gcp_cluster.encrypted_password_iv,
-          encrypted_token: gcp_cluster.encrypted_kubernetes_token,
-          encrypted_token_iv: gcp_cluster.encrypted_kubernetes_token_iv
-        } )
-    end
-  end
-
-  def down
-    execute('DELETE FROM clusters')
-  end
-
-  private
-
-  def api_url(endpoint)
-    endpoint ? 'https://' + endpoint : nil
-  end
-end
diff --git a/db/post_migrate/20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations.rb b/db/post_migrate/20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations.rb
deleted file mode 100644
index 764561de997..00000000000
--- a/db/post_migrate/20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-class ScheduleMergeRequestLatestMergeRequestDiffIdMigrations < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BATCH_SIZE = 50_000
-  MIGRATION = 'PopulateMergeRequestsLatestMergeRequestDiffId'
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    self.table_name = 'merge_requests'
-
-    include ::EachBatch
-  end
-
-  # On GitLab.com, we saw that we generated about 500,000 dead tuples over 5 minutes.
-  # To keep replication lag from ballooning, we'll aim for 50,000 updates over 5 minutes.
-  #
-  # Assuming that there are 5 million rows affected (which is more than on
-  # GitLab.com), and that each batch of 50,000 rows takes up to 5 minutes, then
-  # we can migrate all the rows in 8.5 hours.
-  def up
-    MergeRequest.where(latest_merge_request_diff_id: nil).each_batch(of: BATCH_SIZE) do |relation, index|
-      range = relation.pluck('MIN(id)', 'MAX(id)').first
-
-      BackgroundMigrationWorker.perform_in(index * 5.minutes, MIGRATION, range)
-    end
-  end
-end
diff --git a/db/post_migrate/20171101134435_remove_ref_fetched_from_merge_requests.rb b/db/post_migrate/20171101134435_remove_ref_fetched_from_merge_requests.rb
deleted file mode 100644
index e6a5ffc8649..00000000000
--- a/db/post_migrate/20171101134435_remove_ref_fetched_from_merge_requests.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class RemoveRefFetchedFromMergeRequests < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  # We don't need to cache this anymore: the refs are now created
-  # upon save/update and there is no more use for this flag
-  #
-  # See https://gitlab.com/gitlab-org/gitlab-ce/issues/36061
-  def change
-    remove_column :merge_requests, :ref_fetched, :boolean
-  end
-end
diff --git a/db/post_migrate/20171103140253_track_untracked_uploads.rb b/db/post_migrate/20171103140253_track_untracked_uploads.rb
deleted file mode 100644
index 6891ef5ba12..00000000000
--- a/db/post_migrate/20171103140253_track_untracked_uploads.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class TrackUntrackedUploads < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-  MIGRATION = 'PrepareUntrackedUploads'
-
-  def up
-    BackgroundMigrationWorker.perform_async(MIGRATION)
-  end
-
-  def down
-    if table_exists?(:untracked_files_for_uploads)
-      drop_table :untracked_files_for_uploads
-    end
-  end
-end
diff --git a/db/post_migrate/20171106133144_cleanup_application_settings_password_authentication_enabled_rename.rb b/db/post_migrate/20171106133144_cleanup_application_settings_password_authentication_enabled_rename.rb
deleted file mode 100644
index 4a01bf75f50..00000000000
--- a/db/post_migrate/20171106133144_cleanup_application_settings_password_authentication_enabled_rename.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class CleanupApplicationSettingsPasswordAuthenticationEnabledRename < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    cleanup_concurrent_column_rename :application_settings, :password_authentication_enabled, :password_authentication_enabled_for_web
-  end
-
-  def down
-    rename_column_concurrently :application_settings, :password_authentication_enabled_for_web, :password_authentication_enabled
-  end
-end
diff --git a/db/post_migrate/20171106154015_remove_issues_branch_name.rb b/db/post_migrate/20171106154015_remove_issues_branch_name.rb
deleted file mode 100644
index 4e71aa2f163..00000000000
--- a/db/post_migrate/20171106154015_remove_issues_branch_name.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveIssuesBranchName < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  def change
-    remove_column :issues, :branch_name, :string
-  end
-end
diff --git a/db/post_migrate/20171106180641_cleanup_add_timezone_to_issues_closed_at.rb b/db/post_migrate/20171106180641_cleanup_add_timezone_to_issues_closed_at.rb
deleted file mode 100644
index 8187d3971fc..00000000000
--- a/db/post_migrate/20171106180641_cleanup_add_timezone_to_issues_closed_at.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CleanupAddTimezoneToIssuesClosedAt < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    cleanup_concurrent_column_type_change(:issues, :closed_at)
-  end
-
-  # rubocop:disable Migration/Datetime
-  # rubocop:disable Migration/UpdateLargeTable
-  def down
-    change_column_type_concurrently(:issues, :closed_at, :datetime)
-  end
-end
diff --git a/db/post_migrate/20171114104051_remove_empty_fork_networks.rb b/db/post_migrate/20171114104051_remove_empty_fork_networks.rb
deleted file mode 100644
index 76862cccf60..00000000000
--- a/db/post_migrate/20171114104051_remove_empty_fork_networks.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-class RemoveEmptyForkNetworks < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  BATCH_SIZE = 10_000
-
-  class MigrationForkNetwork < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'fork_networks'
-  end
-
-  class MigrationForkNetworkMembers < ActiveRecord::Base
-    self.table_name = 'fork_network_members'
-  end
-
-  disable_ddl_transaction!
-
-  def up
-    say 'Deleting empty ForkNetworks in batches'
-
-    has_members = MigrationForkNetworkMembers
-                    .where('fork_network_members.fork_network_id = fork_networks.id')
-                    .select(1)
-    MigrationForkNetwork.where('NOT EXISTS (?)', has_members)
-      .each_batch(of: BATCH_SIZE) do |networks|
-      deleted = networks.delete_all
-
-      say "Deleted #{deleted} rows in batch"
-    end
-  end
-
-  def down
-    # nothing
-  end
-end
diff --git a/db/post_migrate/20171121160421_remove_merge_request_diff_st_commits_and_st_diffs.rb b/db/post_migrate/20171121160421_remove_merge_request_diff_st_commits_and_st_diffs.rb
deleted file mode 100644
index 93a97993f1f..00000000000
--- a/db/post_migrate/20171121160421_remove_merge_request_diff_st_commits_and_st_diffs.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class RemoveMergeRequestDiffStCommitsAndStDiffs < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    remove_column :merge_request_diffs, :st_commits, :text
-    remove_column :merge_request_diffs, :st_diffs, :text
-  end
-end
diff --git a/db/post_migrate/20171123101020_update_circuitbreaker_defaults.rb b/db/post_migrate/20171123101020_update_circuitbreaker_defaults.rb
deleted file mode 100644
index ae954289291..00000000000
--- a/db/post_migrate/20171123101020_update_circuitbreaker_defaults.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class UpdateCircuitbreakerDefaults < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  class ApplicationSetting < ActiveRecord::Base; end
-
-  def up
-    change_column_default :application_settings,
-                          :circuitbreaker_failure_count_threshold,
-                          3
-    change_column_default :application_settings,
-                          :circuitbreaker_storage_timeout,
-                          15
-
-    ApplicationSetting.update_all(circuitbreaker_failure_count_threshold: 3,
-                                  circuitbreaker_storage_timeout: 15)
-  end
-
-  def down
-    change_column_default :application_settings,
-                          :circuitbreaker_failure_count_threshold,
-                          160
-    change_column_default :application_settings,
-                          :circuitbreaker_storage_timeout,
-                          30
-
-    ApplicationSetting.update_all(circuitbreaker_failure_count_threshold: 160,
-                                  circuitbreaker_storage_timeout: 30)
-  end
-end
diff --git a/db/post_migrate/20171123101046_remove_old_circuitbreaker_config.rb b/db/post_migrate/20171123101046_remove_old_circuitbreaker_config.rb
deleted file mode 100644
index 3f2c1b2170a..00000000000
--- a/db/post_migrate/20171123101046_remove_old_circuitbreaker_config.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveOldCircuitbreakerConfig < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    remove_column :application_settings,
-                  :circuitbreaker_backoff_threshold
-    remove_column :application_settings,
-                  :circuitbreaker_failure_wait_time
-  end
-
-  def down
-    add_column :application_settings,
-               :circuitbreaker_backoff_threshold,
-               :integer,
-               default: 80
-    add_column :application_settings,
-               :circuitbreaker_failure_wait_time,
-               :integer,
-               default: 30
-  end
-end
diff --git a/db/post_migrate/20171124095655_add_index_on_merge_request_diffs_merge_request_id_and_id.rb b/db/post_migrate/20171124095655_add_index_on_merge_request_diffs_merge_request_id_and_id.rb
deleted file mode 100644
index 2c65a4ae4f5..00000000000
--- a/db/post_migrate/20171124095655_add_index_on_merge_request_diffs_merge_request_id_and_id.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class AddIndexOnMergeRequestDiffsMergeRequestIdAndId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    add_concurrent_index(:merge_request_diffs, [:merge_request_id, :id])
-  end
-
-  def down
-    if index_exists?(:merge_request_diffs, [:merge_request_id, :id])
-      remove_concurrent_index(:merge_request_diffs, [:merge_request_id, :id])
-    end
-  end
-end
diff --git a/db/post_migrate/20171124100152_remove_index_on_merge_request_diffs_merge_request_diff_id.rb b/db/post_migrate/20171124100152_remove_index_on_merge_request_diffs_merge_request_diff_id.rb
deleted file mode 100644
index efd3714d668..00000000000
--- a/db/post_migrate/20171124100152_remove_index_on_merge_request_diffs_merge_request_diff_id.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-class RemoveIndexOnMergeRequestDiffsMergeRequestDiffId < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    if index_exists?(:merge_request_diffs, :merge_request_id)
-      remove_concurrent_index(:merge_request_diffs, :merge_request_id)
-    end
-  end
-
-  def down
-    add_concurrent_index(:merge_request_diffs, :merge_request_id)
-  end
-end
diff --git a/db/post_migrate/20171124104327_migrate_kubernetes_service_to_new_clusters_architectures.rb b/db/post_migrate/20171124104327_migrate_kubernetes_service_to_new_clusters_architectures.rb
deleted file mode 100644
index 58ceefe3c97..00000000000
--- a/db/post_migrate/20171124104327_migrate_kubernetes_service_to_new_clusters_architectures.rb
+++ /dev/null
@@ -1,151 +0,0 @@
-class MigrateKubernetesServiceToNewClustersArchitectures < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  DEFAULT_KUBERNETES_SERVICE_CLUSTER_NAME = 'KubernetesService'.freeze
-
-  disable_ddl_transaction!
-
-  class Project < ActiveRecord::Base
-    self.table_name = 'projects'
-
-    has_many :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::ClustersProject'
-    has_many :clusters, through: :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Cluster'
-    has_many :services, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Service'
-    has_one :kubernetes_service, -> { where(category: 'deployment', type: 'KubernetesService') }, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Service', inverse_of: :project, foreign_key: :project_id
-  end
-
-  class Cluster < ActiveRecord::Base
-    self.table_name = 'clusters'
-
-    has_many :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::ClustersProject'
-    has_many :projects, through: :cluster_projects, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Project'
-    has_one :platform_kubernetes, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::PlatformsKubernetes'
-
-    accepts_nested_attributes_for :platform_kubernetes
-
-    enum platform_type: {
-      kubernetes: 1
-    }
-
-    enum provider_type: {
-      user: 0,
-      gcp: 1
-    }
-  end
-
-  class ClustersProject < ActiveRecord::Base
-    self.table_name = 'cluster_projects'
-
-    belongs_to :cluster, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Cluster'
-    belongs_to :project, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Project'
-  end
-
-  class PlatformsKubernetes < ActiveRecord::Base
-    self.table_name = 'cluster_platforms_kubernetes'
-
-    belongs_to :cluster, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Cluster'
-
-    attr_encrypted :token,
-      mode: :per_attribute_iv,
-      key: Settings.attr_encrypted_db_key_base_truncated,
-      algorithm: 'aes-256-cbc'
-  end
-
-  class Service < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'services'
-    self.inheritance_column = :_type_disabled # Disable STI, otherwise KubernetesModel will be looked up
-
-    belongs_to :project, class_name: 'MigrateKubernetesServiceToNewClustersArchitectures::Project', foreign_key: :project_id
-
-    scope :unmanaged_kubernetes_service, -> do
-      joins('LEFT JOIN projects ON projects.id = services.project_id')
-      .joins('LEFT JOIN cluster_projects ON cluster_projects.project_id = projects.id')
-      .joins('LEFT JOIN cluster_platforms_kubernetes ON cluster_platforms_kubernetes.cluster_id = cluster_projects.cluster_id')
-      .where(category: 'deployment', type: 'KubernetesService', template: false)
-      .where("services.properties LIKE '%api_url%'")
-      .where("(services.properties NOT LIKE CONCAT('%', cluster_platforms_kubernetes.api_url, '%')) OR cluster_platforms_kubernetes.api_url IS NULL")
-      .group(:id)
-      .order(id: :asc)
-    end
-
-    scope :kubernetes_service_without_template, -> do
-      where(category: 'deployment', type: 'KubernetesService', template: false)
-    end
-
-    def api_url
-      parsed_properties['api_url']
-    end
-
-    def ca_pem
-      parsed_properties['ca_pem']
-    end
-
-    def namespace
-      parsed_properties['namespace']
-    end
-
-    def token
-      parsed_properties['token']
-    end
-
-    private
-
-    def parsed_properties
-      @parsed_properties ||= JSON.parse(self.properties)
-    end
-  end
-
-  def find_dedicated_environement_scope(project)
-    environment_scopes = project.clusters.map(&:environment_scope)
-
-    return '*' if environment_scopes.exclude?('*') # KubernetesService should be added as a default cluster (environment_scope: '*') at first place
-    return 'migrated/*' if environment_scopes.exclude?('migrated/*') # If it's conflicted, the KubernetesService added as a migrated cluster
-
-    unique_iid = 0
-
-    # If it's still conflicted, finding an unique environment scope incrementaly
-    loop do
-      candidate = "migrated#{unique_iid}/*"
-      return candidate if environment_scopes.exclude?(candidate)
-
-      unique_iid += 1
-    end
-  end
-
-  def up
-    ActiveRecord::Base.transaction do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service
-        .unmanaged_kubernetes_service.find_each(batch_size: 1) do |kubernetes_service|
-        MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create(
-          enabled: kubernetes_service.active,
-          user_id: nil, # KubernetesService doesn't have
-          name: DEFAULT_KUBERNETES_SERVICE_CLUSTER_NAME,
-          provider_type: MigrateKubernetesServiceToNewClustersArchitectures::Cluster.provider_types[:user],
-          platform_type: MigrateKubernetesServiceToNewClustersArchitectures::Cluster.platform_types[:kubernetes],
-          projects: [kubernetes_service.project],
-          environment_scope: find_dedicated_environement_scope(kubernetes_service.project),
-          platform_kubernetes_attributes: {
-            api_url: kubernetes_service.api_url,
-            ca_cert: kubernetes_service.ca_pem,
-            namespace: kubernetes_service.namespace,
-            username: nil, # KubernetesService doesn't have
-            encrypted_password: nil, # KubernetesService doesn't have
-            encrypted_password_iv: nil, # KubernetesService doesn't have
-            token: kubernetes_service.token # encrypted_token and encrypted_token_iv
-          } )
-      end
-    end
-
-    MigrateKubernetesServiceToNewClustersArchitectures::Service
-      .kubernetes_service_without_template.each_batch(of: 100) do |kubernetes_service|
-      kubernetes_service.update_all(active: false)
-    end
-  end
-
-  def down
-    # noop
-  end
-end
diff --git a/db/post_migrate/20171124150326_reschedule_fork_network_creation.rb b/db/post_migrate/20171124150326_reschedule_fork_network_creation.rb
deleted file mode 100644
index 8e320ea9e8d..00000000000
--- a/db/post_migrate/20171124150326_reschedule_fork_network_creation.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class RescheduleForkNetworkCreation < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    say 'Fork networks will be populated in 20171205190711 - RescheduleForkNetworkCreationCaller'
-  end
-
-  def down
-    # nothing
-  end
-end
diff --git a/db/post_migrate/20171205190711_reschedule_fork_network_creation_caller.rb b/db/post_migrate/20171205190711_reschedule_fork_network_creation_caller.rb
deleted file mode 100644
index 058f3a40817..00000000000
--- a/db/post_migrate/20171205190711_reschedule_fork_network_creation_caller.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-class RescheduleForkNetworkCreationCaller < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  MIGRATION = 'PopulateForkNetworksRange'.freeze
-  BATCH_SIZE = 100
-  DELAY_INTERVAL = 15.seconds
-
-  disable_ddl_transaction!
-
-  class ForkedProjectLink < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'forked_project_links'
-  end
-
-  def up
-    say 'Populating the `fork_networks` based on existing `forked_project_links`'
-
-    queue_background_migration_jobs_by_range_at_intervals(ForkedProjectLink, MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
-  end
-
-  def down
-    # nothing
-  end
-end
diff --git a/db/post_migrate/20171207150300_remove_project_labels_group_id_copy.rb b/db/post_migrate/20171207150300_remove_project_labels_group_id_copy.rb
deleted file mode 100644
index 44273cebc9d..00000000000
--- a/db/post_migrate/20171207150300_remove_project_labels_group_id_copy.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# Copy of 20180202111106 - this one should run before 20171207150343 to fix issues related to
-# the removal of groups with labels.
-
-class RemoveProjectLabelsGroupIdCopy < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  def up
-    # rubocop:disable Migration/UpdateColumnInBatches
-    update_column_in_batches(:labels, :group_id, nil) do |table, query|
-      query.where(table[:type].eq('ProjectLabel').and(table[:group_id].not_eq(nil)))
-    end
-    # rubocop:enable Migration/UpdateColumnInBatches
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20171207150344_remove_deleted_at_columns.rb b/db/post_migrate/20171207150344_remove_deleted_at_columns.rb
deleted file mode 100644
index 5f1c70a2797..00000000000
--- a/db/post_migrate/20171207150344_remove_deleted_at_columns.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveDeletedAtColumns < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  TABLES = %i[issues merge_requests namespaces ci_pipeline_schedules ci_triggers].freeze
-  COLUMN = :deleted_at
-
-  def up
-    TABLES.each do |table|
-      remove_column(table, COLUMN) if column_exists?(table, COLUMN)
-    end
-  end
-
-  def down
-    TABLES.each do |table|
-      unless column_exists?(table, COLUMN)
-        add_column(table, COLUMN, :datetime_with_timezone)
-      end
-
-      unless index_exists?(table, COLUMN)
-        add_concurrent_index(table, COLUMN)
-      end
-    end
-  end
-end
diff --git a/db/post_migrate/20171213160445_migrate_github_importer_advance_stage_sidekiq_queue.rb b/db/post_migrate/20171213160445_migrate_github_importer_advance_stage_sidekiq_queue.rb
deleted file mode 100644
index 088c4b5d46b..00000000000
--- a/db/post_migrate/20171213160445_migrate_github_importer_advance_stage_sidekiq_queue.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateGithubImporterAdvanceStageSidekiqQueue < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def up
-    sidekiq_queue_migrate 'github_importer_advance_stage', to: 'github_import_advance_stage'
-  end
-
-  def down
-    sidekiq_queue_migrate 'github_import_advance_stage', to: 'github_importer_advance_stage'
-  end
-end
diff --git a/db/post_migrate/20171215121205_post_populate_can_push_from_deploy_keys_projects.rb b/db/post_migrate/20171215121205_post_populate_can_push_from_deploy_keys_projects.rb
deleted file mode 100644
index 1c81e56db55..00000000000
--- a/db/post_migrate/20171215121205_post_populate_can_push_from_deploy_keys_projects.rb
+++ /dev/null
@@ -1,63 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class PostPopulateCanPushFromDeployKeysProjects < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  DATABASE_NAME = Gitlab::Database.database_name
-
-  disable_ddl_transaction!
-
-  class DeploysKeyProject < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'deploy_keys_projects'
-  end
-
-  def up
-    DeploysKeyProject.each_batch(of: 10_000) do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      if Gitlab::Database.mysql?
-        execute <<-EOF.strip_heredoc
-          UPDATE deploy_keys_projects, #{DATABASE_NAME}.keys
-          SET deploy_keys_projects.can_push = #{DATABASE_NAME}.keys.can_push
-          WHERE deploy_keys_projects.deploy_key_id = #{DATABASE_NAME}.keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      else
-        execute <<-EOF.strip_heredoc
-          UPDATE deploy_keys_projects
-          SET can_push = keys.can_push
-          FROM keys
-          WHERE deploy_key_id = keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      end
-    end
-  end
-
-  def down
-    DeploysKeyProject.each_batch(of: 10_000) do |batch|
-      start_id, end_id = batch.pluck('MIN(id), MAX(id)').first
-
-      if Gitlab::Database.mysql?
-        execute <<-EOF.strip_heredoc
-          UPDATE deploy_keys_projects, #{DATABASE_NAME}.keys
-          SET #{DATABASE_NAME}.keys.can_push = deploy_keys_projects.can_push
-          WHERE deploy_keys_projects.deploy_key_id = #{DATABASE_NAME}.keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      else
-        execute <<-EOF.strip_heredoc
-          UPDATE keys
-          SET can_push = deploy_keys_projects.can_push
-          FROM deploy_keys_projects
-          WHERE deploy_keys_projects.deploy_key_id = keys.id
-          AND deploy_keys_projects.id BETWEEN #{start_id} AND #{end_id}
-        EOF
-      end
-    end
-  end
-end
diff --git a/db/post_migrate/20171215121259_remove_can_push_from_keys.rb b/db/post_migrate/20171215121259_remove_can_push_from_keys.rb
deleted file mode 100644
index fc4045a383d..00000000000
--- a/db/post_migrate/20171215121259_remove_can_push_from_keys.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class RemoveCanPushFromKeys < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  disable_ddl_transaction!
-
-  def up
-    remove_column :keys, :can_push
-  end
-
-  def down
-    add_column_with_default :keys, :can_push, :boolean, default: false, allow_null: false
-  end
-end
diff --git a/db/post_migrate/20171219121201_normalize_extern_uid_from_identities.rb b/db/post_migrate/20171219121201_normalize_extern_uid_from_identities.rb
deleted file mode 100644
index 45ef75fdb98..00000000000
--- a/db/post_migrate/20171219121201_normalize_extern_uid_from_identities.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class NormalizeExternUidFromIdentities < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  MIGRATION = 'NormalizeLdapExternUidsRange'.freeze
-  DELAY_INTERVAL = 10.seconds
-
-  disable_ddl_transaction!
-
-  class Identity < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'identities'
-  end
-
-  def up
-    ldap_identities = Identity.where("provider like 'ldap%'")
-
-    if ldap_identities.any?
-      queue_background_migration_jobs_by_range_at_intervals(Identity, MIGRATION, DELAY_INTERVAL)
-    end
-  end
-
-  def down
-  end
-end
diff --git a/db/post_migrate/20171221140220_schedule_issues_closed_at_type_change.rb b/db/post_migrate/20171221140220_schedule_issues_closed_at_type_change.rb
deleted file mode 100644
index 6b5e6202688..00000000000
--- a/db/post_migrate/20171221140220_schedule_issues_closed_at_type_change.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-# rubocop:disable Migration/Datetime
-class ScheduleIssuesClosedAtTypeChange < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    self.table_name = 'issues'
-    include EachBatch
-
-    def self.to_migrate
-      where('closed_at IS NOT NULL')
-    end
-  end
-
-  def up
-    return unless migrate_column_type?
-
-    change_column_type_using_background_migration(
-      Issue.to_migrate,
-      :closed_at,
-      :datetime_with_timezone
-    )
-  end
-
-  def down
-    return if migrate_column_type?
-
-    change_column_type_using_background_migration(
-      Issue.to_migrate,
-      :closed_at,
-      :datetime
-    )
-  end
-
-  def migrate_column_type?
-    # Some environments may have already executed the previous version of this
-    # migration, thus we don't need to migrate those environments again.
-    column_for('issues', 'closed_at').type == :datetime
-  end
-end
diff --git a/lib/gitlab/background_migration/create_fork_network_memberships_range.rb b/lib/gitlab/background_migration/create_fork_network_memberships_range.rb
deleted file mode 100644
index ccd1f9b4dba..00000000000
--- a/lib/gitlab/background_migration/create_fork_network_memberships_range.rb
+++ /dev/null
@@ -1,85 +0,0 @@
-# frozen_string_literal: true
-# rubocop:disable Style/Documentation
-
-module Gitlab
-  module BackgroundMigration
-    class CreateForkNetworkMembershipsRange
-      RESCHEDULE_DELAY = 15
-
-      class ForkedProjectLink < ActiveRecord::Base
-        self.table_name = 'forked_project_links'
-      end
-
-      def perform(start_id, end_id)
-        log("Creating memberships for forks: #{start_id} - #{end_id}")
-
-        insert_members(start_id, end_id)
-
-        if missing_members?(start_id, end_id)
-          BackgroundMigrationWorker.perform_in(RESCHEDULE_DELAY, "CreateForkNetworkMembershipsRange", [start_id, end_id])
-        end
-      end
-
-      def insert_members(start_id, end_id)
-        ActiveRecord::Base.connection.execute <<~INSERT_MEMBERS
-          INSERT INTO fork_network_members (fork_network_id, project_id, forked_from_project_id)
-
-          SELECT fork_network_members.fork_network_id,
-                 forked_project_links.forked_to_project_id,
-                 forked_project_links.forked_from_project_id
-
-          FROM forked_project_links
-
-          INNER JOIN fork_network_members
-              ON forked_project_links.forked_from_project_id = fork_network_members.project_id
-
-          WHERE forked_project_links.id BETWEEN #{start_id} AND #{end_id}
-          AND NOT EXISTS (
-            SELECT true
-            FROM fork_network_members existing_members
-            WHERE existing_members.project_id = forked_project_links.forked_to_project_id
-          )
-        INSERT_MEMBERS
-      rescue ActiveRecord::RecordNotUnique => e
-        # `fork_network_member` was created concurrently in another migration
-        log(e.message)
-      end
-
-      def missing_members?(start_id, end_id)
-        count_sql = <<~MISSING_MEMBERS
-          SELECT COUNT(*)
-
-          FROM forked_project_links
-
-          WHERE NOT EXISTS (
-            SELECT true
-            FROM fork_network_members
-            WHERE fork_network_members.project_id = forked_project_links.forked_to_project_id
-          )
-          AND EXISTS (
-            SELECT true
-            FROM projects
-            WHERE forked_project_links.forked_from_project_id = projects.id
-          )
-          AND NOT EXISTS (
-            SELECT true
-            FROM forked_project_links AS parent_links
-            WHERE parent_links.forked_to_project_id = forked_project_links.forked_from_project_id
-            AND NOT EXISTS (
-              SELECT true
-              FROM projects
-              WHERE parent_links.forked_from_project_id = projects.id
-            )
-          )
-          AND forked_project_links.id BETWEEN #{start_id} AND #{end_id}
-        MISSING_MEMBERS
-
-        ForkedProjectLink.count_by_sql(count_sql) > 0
-      end
-
-      def log(message)
-        Rails.logger.info("#{self.class.name} - #{message}")
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb b/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb
deleted file mode 100644
index 21b626dde56..00000000000
--- a/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# frozen_string_literal: true
-# rubocop:disable Style/Documentation
-
-module Gitlab
-  module BackgroundMigration
-    class DeleteConflictingRedirectRoutesRange
-      def perform(start_id, end_id)
-        # No-op.
-        # See https://gitlab.com/gitlab-com/infrastructure/issues/3460#note_53223252
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/background_migration/migrate_events_to_push_event_payloads.rb b/lib/gitlab/background_migration/migrate_events_to_push_event_payloads.rb
deleted file mode 100644
index 42fcaa87e66..00000000000
--- a/lib/gitlab/background_migration/migrate_events_to_push_event_payloads.rb
+++ /dev/null
@@ -1,179 +0,0 @@
-# frozen_string_literal: true
-# rubocop:disable Style/Documentation
-
-module Gitlab
-  module BackgroundMigration
-    # Class that migrates events for the new push event payloads setup. All
-    # events are copied to a shadow table, and push events will also have a row
-    # created in the push_event_payloads table.
-    class MigrateEventsToPushEventPayloads
-      class Event < ActiveRecord::Base
-        self.table_name = 'events'
-
-        serialize :data
-
-        BLANK_REF = ('0' * 40).freeze
-        TAG_REF_PREFIX = 'refs/tags/'.freeze
-        MAX_INDEX = 69
-        PUSHED = 5
-
-        def push_event?
-          action == PUSHED && data.present?
-        end
-
-        def commit_title
-          commit = commits.last
-
-          return unless commit && commit[:message]
-
-          index = commit[:message].index("\n")
-          message = index ? commit[:message][0..index] : commit[:message]
-
-          message.strip.truncate(70)
-        end
-
-        def commit_from_sha
-          if create?
-            nil
-          else
-            data[:before]
-          end
-        end
-
-        def commit_to_sha
-          if remove?
-            nil
-          else
-            data[:after]
-          end
-        end
-
-        def data
-          super || {}
-        end
-
-        def commits
-          data[:commits] || []
-        end
-
-        def commit_count
-          data[:total_commits_count] || 0
-        end
-
-        def ref
-          data[:ref]
-        end
-
-        def trimmed_ref_name
-          if ref_type == :tag
-            ref[10..-1]
-          else
-            ref[11..-1]
-          end
-        end
-
-        def create?
-          data[:before] == BLANK_REF
-        end
-
-        def remove?
-          data[:after] == BLANK_REF
-        end
-
-        def push_action
-          if create?
-            :created
-          elsif remove?
-            :removed
-          else
-            :pushed
-          end
-        end
-
-        def ref_type
-          if ref.start_with?(TAG_REF_PREFIX)
-            :tag
-          else
-            :branch
-          end
-        end
-      end
-
-      class EventForMigration < ActiveRecord::Base
-        self.table_name = 'events_for_migration'
-      end
-
-      class PushEventPayload < ActiveRecord::Base
-        self.table_name = 'push_event_payloads'
-
-        enum action: {
-          created: 0,
-          removed: 1,
-          pushed: 2
-        }
-
-        enum ref_type: {
-          branch: 0,
-          tag: 1
-        }
-      end
-
-      # start_id - The start ID of the range of events to process
-      # end_id - The end ID of the range to process.
-      def perform(start_id, end_id)
-        return unless migrate?
-
-        find_events(start_id, end_id).each { |event| process_event(event) }
-      end
-
-      def process_event(event)
-        ActiveRecord::Base.transaction do
-          replicate_event(event)
-          create_push_event_payload(event) if event.push_event?
-        end
-      rescue ActiveRecord::InvalidForeignKey => e
-        # A foreign key error means the associated event was removed. In this
-        # case we'll just skip migrating the event.
-        Rails.logger.error("Unable to migrate event #{event.id}: #{e}")
-      end
-
-      def replicate_event(event)
-        new_attributes = event.attributes
-          .with_indifferent_access.except(:title, :data)
-
-        EventForMigration.create!(new_attributes)
-      end
-
-      def create_push_event_payload(event)
-        commit_from = pack(event.commit_from_sha)
-        commit_to = pack(event.commit_to_sha)
-
-        PushEventPayload.create!(
-          event_id: event.id,
-          commit_count: event.commit_count,
-          ref_type: event.ref_type,
-          action: event.push_action,
-          commit_from: commit_from,
-          commit_to: commit_to,
-          ref: event.trimmed_ref_name,
-          commit_title: event.commit_title
-        )
-      end
-
-      def find_events(start_id, end_id)
-        Event
-          .where('NOT EXISTS (SELECT true FROM events_for_migration WHERE events_for_migration.id = events.id)')
-          .where(id: start_id..end_id)
-      end
-
-      def migrate?
-        Event.table_exists? && PushEventPayload.table_exists? &&
-          EventForMigration.table_exists?
-      end
-
-      def pack(value)
-        value ? [value].pack('H*') : nil
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/background_migration/normalize_ldap_extern_uids_range.rb b/lib/gitlab/background_migration/normalize_ldap_extern_uids_range.rb
deleted file mode 100644
index 48aa369705f..00000000000
--- a/lib/gitlab/background_migration/normalize_ldap_extern_uids_range.rb
+++ /dev/null
@@ -1,319 +0,0 @@
-# frozen_string_literal: true
-# rubocop:disable Metrics/MethodLength
-# rubocop:disable Metrics/ClassLength
-# rubocop:disable Metrics/BlockLength
-# rubocop:disable Style/Documentation
-
-module Gitlab
-  module BackgroundMigration
-    class NormalizeLdapExternUidsRange
-      class Identity < ActiveRecord::Base
-        self.table_name = 'identities'
-      end
-
-      # Copied this class to make this migration resilient to future code changes.
-      # And if the normalize behavior is changed in the future, it must be
-      # accompanied by another migration.
-      module Gitlab
-        module Auth
-          module LDAP
-            class DN
-              FormatError = Class.new(StandardError)
-              MalformedError = Class.new(FormatError)
-              UnsupportedError = Class.new(FormatError)
-
-              def self.normalize_value(given_value)
-                dummy_dn = "placeholder=#{given_value}"
-                normalized_dn = new(*dummy_dn).to_normalized_s
-                normalized_dn.sub(/\Aplaceholder=/, '')
-              end
-
-              ##
-              # Initialize a DN, escaping as required. Pass in attributes in name/value
-              # pairs. If there is a left over argument, it will be appended to the dn
-              # without escaping (useful for a base string).
-              #
-              # Most uses of this class will be to escape a DN, rather than to parse it,
-              # so storing the dn as an escaped String and parsing parts as required
-              # with a state machine seems sensible.
-              def initialize(*args)
-                if args.length > 1
-                  initialize_array(args)
-                else
-                  initialize_string(args[0])
-                end
-              end
-
-              ##
-              # Parse a DN into key value pairs using ASN from
-              # http://tools.ietf.org/html/rfc2253 section 3.
-              # rubocop:disable Metrics/AbcSize
-              # rubocop:disable Metrics/CyclomaticComplexity
-              # rubocop:disable Metrics/PerceivedComplexity
-              def each_pair
-                state = :key
-                key = StringIO.new
-                value = StringIO.new
-                hex_buffer = ""
-
-                @dn.each_char.with_index do |char, dn_index|
-                  case state
-                  when :key then
-                    case char
-                    when 'a'..'z', 'A'..'Z' then
-                      state = :key_normal
-                      key << char
-                    when '0'..'9' then
-                      state = :key_oid
-                      key << char
-                    when ' ' then state = :key
-                    else raise(MalformedError, "Unrecognized first character of an RDN attribute type name \"#{char}\"")
-                    end
-                  when :key_normal then
-                    case char
-                    when '=' then state = :value
-                    when 'a'..'z', 'A'..'Z', '0'..'9', '-', ' ' then key << char
-                    else raise(MalformedError, "Unrecognized RDN attribute type name character \"#{char}\"")
-                    end
-                  when :key_oid then
-                    case char
-                    when '=' then state = :value
-                    when '0'..'9', '.', ' ' then key << char
-                    else raise(MalformedError, "Unrecognized RDN OID attribute type name character \"#{char}\"")
-                    end
-                  when :value then
-                    case char
-                    when '\\' then state = :value_normal_escape
-                    when '"' then state = :value_quoted
-                    when ' ' then state = :value
-                    when '#' then
-                      state = :value_hexstring
-                      value << char
-                    when ',' then
-                      state = :key
-                      yield key.string.strip, rstrip_except_escaped(value.string, dn_index)
-                      key = StringIO.new
-                      value = StringIO.new
-                    else
-                      state = :value_normal
-                      value << char
-                    end
-                  when :value_normal then
-                    case char
-                    when '\\' then state = :value_normal_escape
-                    when ',' then
-                      state = :key
-                      yield key.string.strip, rstrip_except_escaped(value.string, dn_index)
-                      key = StringIO.new
-                      value = StringIO.new
-                    when '+' then raise(UnsupportedError, "Multivalued RDNs are not supported")
-                    else value << char
-                    end
-                  when :value_normal_escape then
-                    case char
-                    when '0'..'9', 'a'..'f', 'A'..'F' then
-                      state = :value_normal_escape_hex
-                      hex_buffer = char
-                    else
-                      state = :value_normal
-                      value << char
-                    end
-                  when :value_normal_escape_hex then
-                    case char
-                    when '0'..'9', 'a'..'f', 'A'..'F' then
-                      state = :value_normal
-                      value << "#{hex_buffer}#{char}".to_i(16).chr
-                    else raise(MalformedError, "Invalid escaped hex code \"\\#{hex_buffer}#{char}\"")
-                    end
-                  when :value_quoted then
-                    case char
-                    when '\\' then state = :value_quoted_escape
-                    when '"' then state = :value_end
-                    else value << char
-                    end
-                  when :value_quoted_escape then
-                    case char
-                    when '0'..'9', 'a'..'f', 'A'..'F' then
-                      state = :value_quoted_escape_hex
-                      hex_buffer = char
-                    else
-                      state = :value_quoted
-                      value << char
-                    end
-                  when :value_quoted_escape_hex then
-                    case char
-                    when '0'..'9', 'a'..'f', 'A'..'F' then
-                      state = :value_quoted
-                      value << "#{hex_buffer}#{char}".to_i(16).chr
-                    else raise(MalformedError, "Expected the second character of a hex pair inside a double quoted value, but got \"#{char}\"")
-                    end
-                  when :value_hexstring then
-                    case char
-                    when '0'..'9', 'a'..'f', 'A'..'F' then
-                      state = :value_hexstring_hex
-                      value << char
-                    when ' ' then state = :value_end
-                    when ',' then
-                      state = :key
-                      yield key.string.strip, rstrip_except_escaped(value.string, dn_index)
-                      key = StringIO.new
-                      value = StringIO.new
-                    else raise(MalformedError, "Expected the first character of a hex pair, but got \"#{char}\"")
-                    end
-                  when :value_hexstring_hex then
-                    case char
-                    when '0'..'9', 'a'..'f', 'A'..'F' then
-                      state = :value_hexstring
-                      value << char
-                    else raise(MalformedError, "Expected the second character of a hex pair, but got \"#{char}\"")
-                    end
-                  when :value_end then
-                    case char
-                    when ' ' then state = :value_end
-                    when ',' then
-                      state = :key
-                      yield key.string.strip, rstrip_except_escaped(value.string, dn_index)
-                      key = StringIO.new
-                      value = StringIO.new
-                    else raise(MalformedError, "Expected the end of an attribute value, but got \"#{char}\"")
-                    end
-                  else raise "Fell out of state machine"
-                  end
-                end
-
-                # Last pair
-                raise(MalformedError, 'DN string ended unexpectedly') unless
-                  [:value, :value_normal, :value_hexstring, :value_end].include? state
-
-                yield key.string.strip, rstrip_except_escaped(value.string, @dn.length)
-              end
-
-              def rstrip_except_escaped(str, dn_index)
-                str_ends_with_whitespace = str.match(/\s\z/)
-
-                if str_ends_with_whitespace
-                  dn_part_ends_with_escaped_whitespace = @dn[0, dn_index].match(/\\(\s+)\z/)
-
-                  if dn_part_ends_with_escaped_whitespace
-                    dn_part_rwhitespace = dn_part_ends_with_escaped_whitespace[1]
-                    num_chars_to_remove = dn_part_rwhitespace.length - 1
-                    str = str[0, str.length - num_chars_to_remove]
-                  else
-                    str.rstrip!
-                  end
-                end
-
-                str
-              end
-
-              ##
-              # Returns the DN as an array in the form expected by the constructor.
-              def to_a
-                a = []
-                self.each_pair { |key, value| a << key << value } unless @dn.empty?
-                a
-              end
-
-              ##
-              # Return the DN as an escaped string.
-              def to_s
-                @dn
-              end
-
-              ##
-              # Return the DN as an escaped and normalized string.
-              def to_normalized_s
-                self.class.new(*to_a).to_s.downcase
-              end
-
-              # https://tools.ietf.org/html/rfc4514 section 2.4 lists these exceptions
-              # for DN values. All of the following must be escaped in any normal string
-              # using a single backslash ('\') as escape. The space character is left
-              # out here because in a "normalized" string, spaces should only be escaped
-              # if necessary (i.e. leading or trailing space).
-              NORMAL_ESCAPES = [',', '+', '"', '\\', '<', '>', ';', '='].freeze
-
-              # The following must be represented as escaped hex
-              HEX_ESCAPES = {
-                "\n" => '\0a',
-                "\r" => '\0d'
-              }.freeze
-
-              # Compiled character class regexp using the keys from the above hash, and
-              # checking for a space or # at the start, or space at the end, of the
-              # string.
-              ESCAPE_RE = Regexp.new("(^ |^#| $|[" +
-                                    NORMAL_ESCAPES.map { |e| Regexp.escape(e) }.join +
-                                    "])")
-
-              HEX_ESCAPE_RE = Regexp.new("([" +
-                                    HEX_ESCAPES.keys.map { |e| Regexp.escape(e) }.join +
-                                    "])")
-
-              ##
-              # Escape a string for use in a DN value
-              def self.escape(string)
-                escaped = string.gsub(ESCAPE_RE) { |char| "\\" + char }
-                escaped.gsub(HEX_ESCAPE_RE) { |char| HEX_ESCAPES[char] }
-              end
-
-              private
-
-              def initialize_array(args)
-                buffer = StringIO.new
-
-                args.each_with_index do |arg, index|
-                  if index.even? # key
-                    buffer << "," if index > 0
-                    buffer << arg
-                  else # value
-                    buffer << "="
-                    buffer << self.class.escape(arg)
-                  end
-                end
-
-                @dn = buffer.string
-              end
-
-              def initialize_string(arg)
-                @dn = arg.to_s
-              end
-
-              ##
-              # Proxy all other requests to the string object, because a DN is mainly
-              # used within the library as a string
-              # rubocop:disable GitlabSecurity/PublicSend
-              def method_missing(method, *args, &block)
-                @dn.send(method, *args, &block)
-              end
-
-              ##
-              # Redefined to be consistent with redefined `method_missing` behavior
-              def respond_to?(sym, include_private = false)
-                @dn.respond_to?(sym, include_private)
-              end
-            end
-          end
-        end
-      end
-
-      def perform(start_id, end_id)
-        return unless migrate?
-
-        ldap_identities = Identity.where("provider like 'ldap%'").where(id: start_id..end_id)
-        ldap_identities.each do |identity|
-          identity.extern_uid = Gitlab::Auth::LDAP::DN.new(identity.extern_uid).to_normalized_s
-          unless identity.save
-            Rails.logger.info "Unable to normalize \"#{identity.extern_uid}\". Skipping."
-          end
-        rescue Gitlab::Auth::LDAP::DN::FormatError => e
-          Rails.logger.info "Unable to normalize \"#{identity.extern_uid}\" due to \"#{e.message}\". Skipping."
-        end
-      end
-
-      def migrate?
-        Identity.table_exists?
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/background_migration/populate_fork_networks_range.rb b/lib/gitlab/background_migration/populate_fork_networks_range.rb
deleted file mode 100644
index aa4f130538c..00000000000
--- a/lib/gitlab/background_migration/populate_fork_networks_range.rb
+++ /dev/null
@@ -1,128 +0,0 @@
-# frozen_string_literal: true
-
-module Gitlab
-  module BackgroundMigration
-    # This background migration is going to create all `fork_networks` and
-    # the `fork_network_members` for the roots of fork networks based on the
-    # existing `forked_project_links`.
-    #
-    # When the source of a fork is deleted, we will create the fork with the
-    # target project as the root. This way, when there are forks of the target
-    # project, they will be joined into the same fork network.
-    #
-    # When the `fork_networks` and memberships for the root projects are created
-    # the `CreateForkNetworkMembershipsRange` migration is scheduled. This
-    # migration will create the memberships for all remaining forks-of-forks
-    class PopulateForkNetworksRange
-      def perform(start_id, end_id)
-        create_fork_networks_for_existing_projects(start_id, end_id)
-        create_fork_networks_for_missing_projects(start_id, end_id)
-        create_fork_networks_memberships_for_root_projects(start_id, end_id)
-
-        delay = BackgroundMigration::CreateForkNetworkMembershipsRange::RESCHEDULE_DELAY
-        BackgroundMigrationWorker.perform_in(
-          delay, "CreateForkNetworkMembershipsRange", [start_id, end_id]
-        )
-      end
-
-      def create_fork_networks_for_existing_projects(start_id, end_id)
-        log("Creating fork networks: #{start_id} - #{end_id}")
-        ActiveRecord::Base.connection.execute <<~INSERT_NETWORKS
-        INSERT INTO fork_networks (root_project_id)
-          SELECT DISTINCT forked_project_links.forked_from_project_id
-
-          FROM forked_project_links
-
-          -- Exclude the forks that are not the first level fork of a project
-          WHERE NOT EXISTS (
-            SELECT true
-            FROM forked_project_links inner_links
-            WHERE inner_links.forked_to_project_id = forked_project_links.forked_from_project_id
-          )
-
-          /* Exclude the ones that are already created, in case the fork network
-             was already created for another fork of the project.
-          */
-          AND NOT EXISTS (
-            SELECT true
-            FROM fork_networks
-            WHERE forked_project_links.forked_from_project_id = fork_networks.root_project_id
-          )
-
-          -- Only create a fork network for a root project that still exists
-          AND EXISTS (
-            SELECT true
-            FROM projects
-            WHERE projects.id = forked_project_links.forked_from_project_id
-          )
-          AND forked_project_links.id BETWEEN #{start_id} AND #{end_id}
-        INSERT_NETWORKS
-      end
-
-      def create_fork_networks_for_missing_projects(start_id, end_id)
-        log("Creating fork networks with missing root: #{start_id} - #{end_id}")
-        ActiveRecord::Base.connection.execute <<~INSERT_NETWORKS
-        INSERT INTO fork_networks (root_project_id)
-          SELECT DISTINCT forked_project_links.forked_to_project_id
-
-          FROM forked_project_links
-
-          -- Exclude forks that are not the root forks
-          WHERE NOT EXISTS (
-            SELECT true
-            FROM forked_project_links inner_links
-            WHERE inner_links.forked_to_project_id = forked_project_links.forked_from_project_id
-          )
-
-          /* Exclude the ones that are already created, in case this migration is
-             re-run
-          */
-          AND NOT EXISTS (
-            SELECT true
-            FROM fork_networks
-            WHERE forked_project_links.forked_to_project_id = fork_networks.root_project_id
-          )
-
-          /* Exclude projects for which the project still exists, those are
-             Processed in the previous step of this migration
-          */
-          AND NOT EXISTS (
-            SELECT true
-            FROM projects
-            WHERE projects.id = forked_project_links.forked_from_project_id
-          )
-          AND forked_project_links.id BETWEEN #{start_id} AND #{end_id}
-        INSERT_NETWORKS
-      end
-
-      def create_fork_networks_memberships_for_root_projects(start_id, end_id)
-        log("Creating memberships for root projects: #{start_id} - #{end_id}")
-
-        ActiveRecord::Base.connection.execute <<~INSERT_ROOT
-          INSERT INTO fork_network_members (fork_network_id, project_id)
-          SELECT DISTINCT fork_networks.id, fork_networks.root_project_id
-
-          FROM fork_networks
-
-          /* Joining both on forked_from- and forked_to- so we could create the
-             memberships for forks for which the source was deleted
-          */
-          INNER JOIN forked_project_links
-              ON forked_project_links.forked_from_project_id = fork_networks.root_project_id
-              OR forked_project_links.forked_to_project_id = fork_networks.root_project_id
-
-          WHERE NOT EXISTS (
-            SELECT true
-            FROM fork_network_members
-            WHERE fork_network_members.project_id = fork_networks.root_project_id
-          )
-          AND forked_project_links.id BETWEEN #{start_id} AND #{end_id}
-        INSERT_ROOT
-      end
-
-      def log(message)
-        Rails.logger.info("#{self.class.name} - #{message}")
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id.rb b/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id.rb
deleted file mode 100644
index dcac355e1b0..00000000000
--- a/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# frozen_string_literal: true
-# rubocop:disable Style/Documentation
-
-module Gitlab
-  module BackgroundMigration
-    class PopulateMergeRequestsLatestMergeRequestDiffId
-      BATCH_SIZE = 1_000
-
-      class MergeRequest < ActiveRecord::Base
-        self.table_name = 'merge_requests'
-
-        include ::EachBatch
-      end
-
-      def perform(start_id, stop_id)
-        update = '
-          latest_merge_request_diff_id = (
-            SELECT MAX(id)
-            FROM merge_request_diffs
-            WHERE merge_requests.id = merge_request_diffs.merge_request_id
-          )'.squish
-
-        MergeRequest
-          .where(id: start_id..stop_id)
-          .where(latest_merge_request_diff_id: nil)
-          .each_batch(of: BATCH_SIZE) do |relation|
-
-          relation.update_all(update)
-        end
-      end
-    end
-  end
-end
diff --git a/lib/tasks/migrate/setup_postgresql.rake b/lib/tasks/migrate/setup_postgresql.rake
index f69d204c579..cda88c130bb 100644
--- a/lib/tasks/migrate/setup_postgresql.rake
+++ b/lib/tasks/migrate/setup_postgresql.rake
@@ -1,23 +1,9 @@
 desc 'GitLab | Sets up PostgreSQL'
 task setup_postgresql: :environment do
-  require Rails.root.join('db/migrate/20151007120511_namespaces_projects_path_lower_indexes')
-  require Rails.root.join('db/migrate/20151008110232_add_users_lower_username_email_indexes')
-  require Rails.root.join('db/migrate/20161212142807_add_lower_path_index_to_routes')
-  require Rails.root.join('db/migrate/20170317203554_index_routes_path_for_like')
-  require Rails.root.join('db/migrate/20170724214302_add_lower_path_index_to_redirect_routes')
-  require Rails.root.join('db/migrate/20170503185032_index_redirect_routes_path_for_like')
-  require Rails.root.join('db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb')
   require Rails.root.join('db/migrate/20180215181245_users_name_lower_index.rb')
   require Rails.root.join('db/migrate/20180504195842_project_name_lower_index.rb')
   require Rails.root.join('db/post_migrate/20180306164012_add_path_index_to_redirect_routes.rb')
 
-  NamespacesProjectsPathLowerIndexes.new.up
-  AddUsersLowerUsernameEmailIndexes.new.up
-  AddLowerPathIndexToRoutes.new.up
-  IndexRoutesPathForLike.new.up
-  AddLowerPathIndexToRedirectRoutes.new.up
-  IndexRedirectRoutesPathForLike.new.up
-  AddIndexOnNamespacesLowerName.new.up
   UsersNameLowerIndex.new.up
   ProjectNameLowerIndex.new.up
   AddPathIndexToRedirectRoutes.new.up
diff --git a/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb b/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb
deleted file mode 100644
index 5076996474f..00000000000
--- a/spec/lib/gitlab/background_migration/create_fork_network_memberships_range_spec.rb
+++ /dev/null
@@ -1,125 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::BackgroundMigration::CreateForkNetworkMembershipsRange, :migration, schema: 20170929131201 do
-  let(:migration) { described_class.new }
-  let(:projects) { table(:projects) }
-
-  let(:base1) { projects.create }
-  let(:base1_fork1) { projects.create }
-  let(:base1_fork2) { projects.create }
-
-  let(:base2) { projects.create }
-  let(:base2_fork1) { projects.create }
-  let(:base2_fork2) { projects.create }
-
-  let(:fork_of_fork) { projects.create }
-  let(:fork_of_fork2) { projects.create }
-  let(:second_level_fork) { projects.create }
-  let(:third_level_fork) { projects.create }
-
-  let(:fork_network1) { fork_networks.find_by(root_project_id: base1.id) }
-  let(:fork_network2) { fork_networks.find_by(root_project_id: base2.id) }
-
-  let!(:forked_project_links) { table(:forked_project_links) }
-  let!(:fork_networks) { table(:fork_networks) }
-  let!(:fork_network_members) { table(:fork_network_members) }
-
-  before do
-    # The fork-network relation created for the forked project
-    fork_networks.create(id: 1, root_project_id: base1.id)
-    fork_network_members.create(project_id: base1.id, fork_network_id: 1)
-    fork_networks.create(id: 2, root_project_id: base2.id)
-    fork_network_members.create(project_id: base2.id, fork_network_id: 2)
-
-    # Normal fork links
-    forked_project_links.create(id: 1, forked_from_project_id: base1.id, forked_to_project_id: base1_fork1.id)
-    forked_project_links.create(id: 2, forked_from_project_id: base1.id, forked_to_project_id: base1_fork2.id)
-    forked_project_links.create(id: 3, forked_from_project_id: base2.id, forked_to_project_id: base2_fork1.id)
-    forked_project_links.create(id: 4, forked_from_project_id: base2.id, forked_to_project_id: base2_fork2.id)
-
-    # Fork links
-    forked_project_links.create(id: 5, forked_from_project_id: base1_fork1.id, forked_to_project_id: fork_of_fork.id)
-    forked_project_links.create(id: 6, forked_from_project_id: base1_fork1.id, forked_to_project_id: fork_of_fork2.id)
-
-    # Forks 3 levels down
-    forked_project_links.create(id: 7, forked_from_project_id: fork_of_fork.id, forked_to_project_id: second_level_fork.id)
-    forked_project_links.create(id: 8, forked_from_project_id: second_level_fork.id, forked_to_project_id: third_level_fork.id)
-
-    migration.perform(1, 8)
-  end
-
-  it 'creates a memberships for the direct forks' do
-    base1_fork1_membership = fork_network_members.find_by(fork_network_id: fork_network1.id,
-                                                          project_id: base1_fork1.id)
-    base1_fork2_membership = fork_network_members.find_by(fork_network_id: fork_network1.id,
-                                                          project_id: base1_fork2.id)
-    base2_fork1_membership = fork_network_members.find_by(fork_network_id: fork_network2.id,
-                                                          project_id: base2_fork1.id)
-    base2_fork2_membership = fork_network_members.find_by(fork_network_id: fork_network2.id,
-                                                          project_id: base2_fork2.id)
-
-    expect(base1_fork1_membership.forked_from_project_id).to eq(base1.id)
-    expect(base1_fork2_membership.forked_from_project_id).to eq(base1.id)
-    expect(base2_fork1_membership.forked_from_project_id).to eq(base2.id)
-    expect(base2_fork2_membership.forked_from_project_id).to eq(base2.id)
-  end
-
-  it 'adds the fork network members for forks of forks' do
-    fork_of_fork_membership = fork_network_members.find_by(project_id: fork_of_fork.id,
-                                                           fork_network_id: fork_network1.id)
-    fork_of_fork2_membership = fork_network_members.find_by(project_id: fork_of_fork2.id,
-                                                            fork_network_id: fork_network1.id)
-    second_level_fork_membership = fork_network_members.find_by(project_id: second_level_fork.id,
-                                                                fork_network_id: fork_network1.id)
-    third_level_fork_membership = fork_network_members.find_by(project_id: third_level_fork.id,
-                                                               fork_network_id: fork_network1.id)
-
-    expect(fork_of_fork_membership.forked_from_project_id).to eq(base1_fork1.id)
-    expect(fork_of_fork2_membership.forked_from_project_id).to eq(base1_fork1.id)
-    expect(second_level_fork_membership.forked_from_project_id).to eq(fork_of_fork.id)
-    expect(third_level_fork_membership.forked_from_project_id).to eq(second_level_fork.id)
-  end
-
-  it 'reschedules itself when there are missing members' do
-    allow(migration).to receive(:missing_members?).and_return(true)
-
-    expect(BackgroundMigrationWorker)
-      .to receive(:perform_in).with(described_class::RESCHEDULE_DELAY, "CreateForkNetworkMembershipsRange", [1, 3])
-
-    migration.perform(1, 3)
-  end
-
-  it 'can be repeated without effect' do
-    expect { fork_network_members.count }.not_to change { migration.perform(1, 7) }
-  end
-
-  it 'knows it is finished for this range' do
-    expect(migration.missing_members?(1, 8)).to be_falsy
-  end
-
-  it 'does not miss members for forks of forks for which the root was deleted' do
-    forked_project_links.create(id: 9, forked_from_project_id: base1_fork1.id, forked_to_project_id: projects.create.id)
-    base1.destroy
-
-    expect(migration.missing_members?(7, 10)).to be_falsy
-  end
-
-  context 'with more forks' do
-    before do
-      forked_project_links.create(id: 9, forked_from_project_id: fork_of_fork.id, forked_to_project_id: projects.create.id)
-      forked_project_links.create(id: 10, forked_from_project_id: fork_of_fork.id, forked_to_project_id: projects.create.id)
-    end
-
-    it 'only processes a single batch of links at a time' do
-      expect(fork_network_members.count).to eq(10)
-
-      migration.perform(8, 10)
-
-      expect(fork_network_members.count).to eq(12)
-    end
-
-    it 'knows when not all memberships within a batch have been created' do
-      expect(migration.missing_members?(8, 10)).to be_truthy
-    end
-  end
-end
diff --git a/spec/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range_spec.rb b/spec/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range_spec.rb
deleted file mode 100644
index 9bae7e53b71..00000000000
--- a/spec/lib/gitlab/background_migration/delete_conflicting_redirect_routes_range_spec.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::BackgroundMigration::DeleteConflictingRedirectRoutesRange, :migration, schema: 20170907170235 do
-  let!(:redirect_routes) { table(:redirect_routes) }
-  let!(:routes) { table(:routes) }
-
-  before do
-    routes.create!(id: 1, source_id: 1, source_type: 'Namespace', path: 'foo1')
-    routes.create!(id: 2, source_id: 2, source_type: 'Namespace', path: 'foo2')
-    routes.create!(id: 3, source_id: 3, source_type: 'Namespace', path: 'foo3')
-    routes.create!(id: 4, source_id: 4, source_type: 'Namespace', path: 'foo4')
-    routes.create!(id: 5, source_id: 5, source_type: 'Namespace', path: 'foo5')
-
-    # Valid redirects
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'bar')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'bar2')
-    redirect_routes.create!(source_id: 2, source_type: 'Namespace', path: 'bar3')
-
-    # Conflicting redirects
-    redirect_routes.create!(source_id: 2, source_type: 'Namespace', path: 'foo1')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo2')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo3')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo4')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo5')
-  end
-
-  # No-op. See https://gitlab.com/gitlab-com/infrastructure/issues/3460#note_53223252
-  it 'NO-OP: does not delete any redirect_routes' do
-    expect(redirect_routes.count).to eq(8)
-
-    described_class.new.perform(1, 5)
-
-    expect(redirect_routes.count).to eq(8)
-  end
-end
diff --git a/spec/lib/gitlab/background_migration/migrate_events_to_push_event_payloads_spec.rb b/spec/lib/gitlab/background_migration/migrate_events_to_push_event_payloads_spec.rb
deleted file mode 100644
index 188969951a6..00000000000
--- a/spec/lib/gitlab/background_migration/migrate_events_to_push_event_payloads_spec.rb
+++ /dev/null
@@ -1,433 +0,0 @@
-require 'spec_helper'
-
-# rubocop:disable RSpec/FactoriesInMigrationSpecs
-describe Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads::Event, :migration, schema: 20170608152748 do
-  describe '#commit_title' do
-    it 'returns nil when there are no commits' do
-      expect(described_class.new.commit_title).to be_nil
-    end
-
-    it 'returns nil when there are commits without commit messages' do
-      event = described_class.new
-
-      allow(event).to receive(:commits).and_return([{ id: '123' }])
-
-      expect(event.commit_title).to be_nil
-    end
-
-    it 'returns the commit message when it is less than 70 characters long' do
-      event = described_class.new
-
-      allow(event).to receive(:commits).and_return([{ message: 'Hello world' }])
-
-      expect(event.commit_title).to eq('Hello world')
-    end
-
-    it 'returns the first line of a commit message if multiple lines are present' do
-      event = described_class.new
-
-      allow(event).to receive(:commits).and_return([{ message: "Hello\n\nworld" }])
-
-      expect(event.commit_title).to eq('Hello')
-    end
-
-    it 'truncates the commit to 70 characters when it is too long' do
-      event = described_class.new
-
-      allow(event).to receive(:commits).and_return([{ message: 'a' * 100 }])
-
-      expect(event.commit_title).to eq(('a' * 67) + '...')
-    end
-  end
-
-  describe '#commit_from_sha' do
-    it 'returns nil when pushing to a new ref' do
-      event = described_class.new
-
-      allow(event).to receive(:create?).and_return(true)
-
-      expect(event.commit_from_sha).to be_nil
-    end
-
-    it 'returns the ID of the first commit when pushing to an existing ref' do
-      event = described_class.new
-
-      allow(event).to receive(:create?).and_return(false)
-      allow(event).to receive(:data).and_return(before: '123')
-
-      expect(event.commit_from_sha).to eq('123')
-    end
-  end
-
-  describe '#commit_to_sha' do
-    it 'returns nil when removing an existing ref' do
-      event = described_class.new
-
-      allow(event).to receive(:remove?).and_return(true)
-
-      expect(event.commit_to_sha).to be_nil
-    end
-
-    it 'returns the ID of the last commit when pushing to an existing ref' do
-      event = described_class.new
-
-      allow(event).to receive(:remove?).and_return(false)
-      allow(event).to receive(:data).and_return(after: '123')
-
-      expect(event.commit_to_sha).to eq('123')
-    end
-  end
-
-  describe '#data' do
-    it 'returns the deserialized data' do
-      event = described_class.new(data: { before: '123' })
-
-      expect(event.data).to eq(before: '123')
-    end
-
-    it 'returns an empty hash when no data is present' do
-      event = described_class.new
-
-      expect(event.data).to eq({})
-    end
-  end
-
-  describe '#commits' do
-    it 'returns an Array of commits' do
-      event = described_class.new(data: { commits: [{ id: '123' }] })
-
-      expect(event.commits).to eq([{ id: '123' }])
-    end
-
-    it 'returns an empty array when no data is present' do
-      event = described_class.new
-
-      expect(event.commits).to eq([])
-    end
-  end
-
-  describe '#commit_count' do
-    it 'returns the number of commits' do
-      event = described_class.new(data: { total_commits_count: 2 })
-
-      expect(event.commit_count).to eq(2)
-    end
-
-    it 'returns 0 when no data is present' do
-      event = described_class.new
-
-      expect(event.commit_count).to eq(0)
-    end
-  end
-
-  describe '#ref' do
-    it 'returns the name of the ref' do
-      event = described_class.new(data: { ref: 'refs/heads/master' })
-
-      expect(event.ref).to eq('refs/heads/master')
-    end
-  end
-
-  describe '#trimmed_ref_name' do
-    it 'returns the trimmed ref name for a branch' do
-      event = described_class.new(data: { ref: 'refs/heads/master' })
-
-      expect(event.trimmed_ref_name).to eq('master')
-    end
-
-    it 'returns the trimmed ref name for a tag' do
-      event = described_class.new(data: { ref: 'refs/tags/v1.2' })
-
-      expect(event.trimmed_ref_name).to eq('v1.2')
-    end
-  end
-
-  describe '#create?' do
-    it 'returns true when creating a new ref' do
-      event = described_class.new(data: { before: described_class::BLANK_REF })
-
-      expect(event.create?).to eq(true)
-    end
-
-    it 'returns false when pushing to an existing ref' do
-      event = described_class.new(data: { before: '123' })
-
-      expect(event.create?).to eq(false)
-    end
-  end
-
-  describe '#remove?' do
-    it 'returns true when removing an existing ref' do
-      event = described_class.new(data: { after: described_class::BLANK_REF })
-
-      expect(event.remove?).to eq(true)
-    end
-
-    it 'returns false when pushing to an existing ref' do
-      event = described_class.new(data: { after: '123' })
-
-      expect(event.remove?).to eq(false)
-    end
-  end
-
-  describe '#push_action' do
-    let(:event) { described_class.new }
-
-    it 'returns :created when creating a new ref' do
-      allow(event).to receive(:create?).and_return(true)
-
-      expect(event.push_action).to eq(:created)
-    end
-
-    it 'returns :removed when removing an existing ref' do
-      allow(event).to receive(:create?).and_return(false)
-      allow(event).to receive(:remove?).and_return(true)
-
-      expect(event.push_action).to eq(:removed)
-    end
-
-    it 'returns :pushed when pushing to an existing ref' do
-      allow(event).to receive(:create?).and_return(false)
-      allow(event).to receive(:remove?).and_return(false)
-
-      expect(event.push_action).to eq(:pushed)
-    end
-  end
-
-  describe '#ref_type' do
-    let(:event) { described_class.new }
-
-    it 'returns :tag for a tag' do
-      allow(event).to receive(:ref).and_return('refs/tags/1.2')
-
-      expect(event.ref_type).to eq(:tag)
-    end
-
-    it 'returns :branch for a branch' do
-      allow(event).to receive(:ref).and_return('refs/heads/1.2')
-
-      expect(event.ref_type).to eq(:branch)
-    end
-  end
-end
-
-##
-# The background migration relies on a temporary table, hence we're migrating
-# to a specific version of the database where said table is still present.
-#
-describe Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads, :migration, schema: 20170825154015 do
-  let(:user_class) do
-    Class.new(ActiveRecord::Base) do
-      self.table_name = 'users'
-    end
-  end
-
-  let(:migration) { described_class.new }
-  let(:user_class) { table(:users) }
-  let(:author) { build(:user).becomes(user_class).tap(&:save!).becomes(User) }
-  let(:namespace) { create(:namespace, owner: author) }
-  let(:projects) { table(:projects) }
-  let(:project) { projects.create(namespace_id: namespace.id, creator_id: author.id) }
-
-  # We can not rely on FactoryBot as the state of Event may change in ways that
-  # the background migration does not expect, hence we use the Event class of
-  # the migration itself.
-  def create_push_event(project, author, data = nil)
-    klass = Gitlab::BackgroundMigration::MigrateEventsToPushEventPayloads::Event
-
-    klass.create!(
-      action: klass::PUSHED,
-      project_id: project.id,
-      author_id: author.id,
-      data: data
-    )
-  end
-
-  describe '#perform' do
-    it 'returns if data should not be migrated' do
-      allow(migration).to receive(:migrate?).and_return(false)
-
-      expect(migration).not_to receive(:find_events)
-
-      migration.perform(1, 10)
-    end
-
-    it 'migrates the range of events if data is to be migrated' do
-      event1 = create_push_event(project, author, { commits: [] })
-      event2 = create_push_event(project, author, { commits: [] })
-
-      allow(migration).to receive(:migrate?).and_return(true)
-
-      expect(migration).to receive(:process_event).twice
-
-      migration.perform(event1.id, event2.id)
-    end
-  end
-
-  describe '#process_event' do
-    it 'processes a regular event' do
-      event = double(:event, push_event?: false)
-
-      expect(migration).to receive(:replicate_event)
-      expect(migration).not_to receive(:create_push_event_payload)
-
-      migration.process_event(event)
-    end
-
-    it 'processes a push event' do
-      event = double(:event, push_event?: true)
-
-      expect(migration).to receive(:replicate_event)
-      expect(migration).to receive(:create_push_event_payload)
-
-      migration.process_event(event)
-    end
-
-    it 'handles an error gracefully' do
-      event1 = create_push_event(project, author, { commits: [] })
-
-      expect(migration).to receive(:replicate_event).and_call_original
-      expect(migration).to receive(:create_push_event_payload).and_raise(ActiveRecord::InvalidForeignKey, 'invalid foreign key')
-
-      migration.process_event(event1)
-
-      expect(described_class::EventForMigration.all.count).to eq(0)
-    end
-  end
-
-  describe '#replicate_event' do
-    it 'replicates the event to the "events_for_migration" table' do
-      event = create_push_event(
-        project,
-        author,
-        data: { commits: [] },
-        title: 'bla'
-      )
-
-      attributes = event
-        .attributes.with_indifferent_access.except(:title, :data)
-
-      expect(described_class::EventForMigration)
-        .to receive(:create!)
-        .with(attributes)
-
-      migration.replicate_event(event)
-    end
-  end
-
-  describe '#create_push_event_payload' do
-    let(:push_data) do
-      {
-        commits: [],
-        ref: 'refs/heads/master',
-        before: '156e0e9adc587a383a7eeb5b21ddecb9044768a8',
-        after: '0' * 40,
-        total_commits_count: 1
-      }
-    end
-
-    let(:event) do
-      create_push_event(project, author, push_data)
-    end
-
-    before do
-      # The foreign key in push_event_payloads at this point points to the
-      # "events_for_migration" table so we need to make sure a row exists in
-      # said table.
-      migration.replicate_event(event)
-    end
-
-    it 'creates a push event payload for an event' do
-      payload = migration.create_push_event_payload(event)
-
-      expect(PushEventPayload.count).to eq(1)
-      expect(payload.valid?).to eq(true)
-    end
-
-    it 'does not create push event payloads for removed events' do
-      allow(event).to receive(:id).and_return(-1)
-
-      expect { migration.create_push_event_payload(event) }.to raise_error(ActiveRecord::InvalidForeignKey)
-
-      expect(PushEventPayload.count).to eq(0)
-    end
-
-    it 'encodes and decodes the commit IDs from and to binary data' do
-      payload = migration.create_push_event_payload(event)
-      packed = migration.pack(push_data[:before])
-
-      expect(payload.commit_from).to eq(packed)
-      expect(payload.commit_to).to be_nil
-    end
-  end
-
-  describe '#find_events' do
-    it 'returns the events for the given ID range' do
-      event1 = create_push_event(project, author, { commits: [] })
-      event2 = create_push_event(project, author, { commits: [] })
-      event3 = create_push_event(project, author, { commits: [] })
-      events = migration.find_events(event1.id, event2.id)
-
-      expect(events.length).to eq(2)
-      expect(events.pluck(:id)).not_to include(event3.id)
-    end
-  end
-
-  describe '#migrate?' do
-    it 'returns true when data should be migrated' do
-      allow(described_class::Event)
-        .to receive(:table_exists?).and_return(true)
-
-      allow(described_class::PushEventPayload)
-        .to receive(:table_exists?).and_return(true)
-
-      allow(described_class::EventForMigration)
-        .to receive(:table_exists?).and_return(true)
-
-      expect(migration.migrate?).to eq(true)
-    end
-
-    it 'returns false if the "events" table does not exist' do
-      allow(described_class::Event)
-        .to receive(:table_exists?).and_return(false)
-
-      expect(migration.migrate?).to eq(false)
-    end
-
-    it 'returns false if the "push_event_payloads" table does not exist' do
-      allow(described_class::Event)
-        .to receive(:table_exists?).and_return(true)
-
-      allow(described_class::PushEventPayload)
-        .to receive(:table_exists?).and_return(false)
-
-      expect(migration.migrate?).to eq(false)
-    end
-
-    it 'returns false when the "events_for_migration" table does not exist' do
-      allow(described_class::Event)
-        .to receive(:table_exists?).and_return(true)
-
-      allow(described_class::PushEventPayload)
-        .to receive(:table_exists?).and_return(true)
-
-      allow(described_class::EventForMigration)
-        .to receive(:table_exists?).and_return(false)
-
-      expect(migration.migrate?).to eq(false)
-    end
-  end
-
-  describe '#pack' do
-    it 'packs a SHA1 into a 20 byte binary string' do
-      packed = migration.pack('156e0e9adc587a383a7eeb5b21ddecb9044768a8')
-
-      expect(packed.bytesize).to eq(20)
-    end
-
-    it 'returns nil if the input value is nil' do
-      expect(migration.pack(nil)).to be_nil
-    end
-  end
-end
-# rubocop:enable RSpec/FactoriesInMigrationSpecs
diff --git a/spec/lib/gitlab/background_migration/migrate_stage_status_spec.rb b/spec/lib/gitlab/background_migration/migrate_stage_status_spec.rb
deleted file mode 100644
index 89b56906ed0..00000000000
--- a/spec/lib/gitlab/background_migration/migrate_stage_status_spec.rb
+++ /dev/null
@@ -1,92 +0,0 @@
-# frozen_string_literal: true
-
-require 'spec_helper'
-
-describe Gitlab::BackgroundMigration::MigrateStageStatus, :migration, schema: 20170711145320 do
-  let(:projects) { table(:projects) }
-  let(:pipelines) { table(:ci_pipelines) }
-  let(:stages) { table(:ci_stages) }
-  let(:jobs) { table(:ci_builds) }
-
-  let(:statuses) do
-    {
-      created: 0,
-      pending: 1,
-      running: 2,
-      success: 3,
-      failed: 4,
-      canceled: 5,
-      skipped: 6,
-      manual: 7
-    }
-  end
-
-  before do
-    projects.create!(id: 1, name: 'gitlab1', path: 'gitlab1')
-    pipelines.create!(id: 1, project_id: 1, ref: 'master', sha: 'adf43c3a')
-    stages.create!(id: 1, pipeline_id: 1, project_id: 1, name: 'test', status: nil)
-    stages.create!(id: 2, pipeline_id: 1, project_id: 1, name: 'deploy', status: nil)
-  end
-
-  context 'when stage status is known' do
-    before do
-      create_job(project: 1, pipeline: 1, stage: 'test', status: 'success')
-      create_job(project: 1, pipeline: 1, stage: 'test', status: 'running')
-      create_job(project: 1, pipeline: 1, stage: 'deploy', status: 'failed')
-    end
-
-    it 'sets a correct stage status' do
-      described_class.new.perform(1, 2)
-
-      expect(stages.first.status).to eq statuses[:running]
-      expect(stages.second.status).to eq statuses[:failed]
-    end
-  end
-
-  context 'when stage status is not known' do
-    it 'sets a skipped stage status' do
-      described_class.new.perform(1, 2)
-
-      expect(stages.first.status).to eq statuses[:skipped]
-      expect(stages.second.status).to eq statuses[:skipped]
-    end
-  end
-
-  context 'when stage status includes status of a retried job' do
-    before do
-      create_job(project: 1, pipeline: 1, stage: 'test', status: 'canceled')
-      create_job(project: 1, pipeline: 1, stage: 'deploy', status: 'failed', retried: true)
-      create_job(project: 1, pipeline: 1, stage: 'deploy', status: 'success')
-    end
-
-    it 'sets a correct stage status' do
-      described_class.new.perform(1, 2)
-
-      expect(stages.first.status).to eq statuses[:canceled]
-      expect(stages.second.status).to eq statuses[:success]
-    end
-  end
-
-  context 'when some job in the stage is blocked / manual' do
-    before do
-      create_job(project: 1, pipeline: 1, stage: 'test', status: 'failed')
-      create_job(project: 1, pipeline: 1, stage: 'test', status: 'manual')
-      create_job(project: 1, pipeline: 1, stage: 'deploy', status: 'success', when: 'manual')
-    end
-
-    it 'sets a correct stage status' do
-      described_class.new.perform(1, 2)
-
-      expect(stages.first.status).to eq statuses[:manual]
-      expect(stages.second.status).to eq statuses[:success]
-    end
-  end
-
-  def create_job(project:, pipeline:, stage:, status:, **opts)
-    stages = { test: 1, build: 2, deploy: 3 }
-
-    jobs.create!(project_id: project, commit_id: pipeline,
-                 stage_idx: stages[stage.to_sym], stage: stage,
-                 status: status, **opts)
-  end
-end
diff --git a/spec/lib/gitlab/background_migration/normalize_ldap_extern_uids_range_spec.rb b/spec/lib/gitlab/background_migration/normalize_ldap_extern_uids_range_spec.rb
deleted file mode 100644
index dfbf1bb681a..00000000000
--- a/spec/lib/gitlab/background_migration/normalize_ldap_extern_uids_range_spec.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::BackgroundMigration::NormalizeLdapExternUidsRange, :migration, schema: 20170921101004 do
-  let!(:identities) { table(:identities) }
-
-  before do
-    # LDAP identities
-    (1..4).each do |i|
-      identities.create!(id: i, provider: 'ldapmain', extern_uid: " uid = foo #{i}, ou = People, dc = example, dc = com ", user_id: i)
-    end
-
-    # Non-LDAP identity
-    identities.create!(id: 5, provider: 'foo', extern_uid: " uid = foo 5, ou = People, dc = example, dc = com ", user_id: 5)
-
-    # Another LDAP identity
-    identities.create!(id: 6, provider: 'ldapmain', extern_uid: " uid = foo 6, ou = People, dc = example, dc = com ", user_id: 6)
-  end
-
-  it 'normalizes the LDAP identities in the range' do
-    described_class.new.perform(1, 3)
-    expect(identities.find(1).extern_uid).to eq("uid=foo 1,ou=people,dc=example,dc=com")
-    expect(identities.find(2).extern_uid).to eq("uid=foo 2,ou=people,dc=example,dc=com")
-    expect(identities.find(3).extern_uid).to eq("uid=foo 3,ou=people,dc=example,dc=com")
-    expect(identities.find(4).extern_uid).to eq(" uid = foo 4, ou = People, dc = example, dc = com ")
-    expect(identities.find(5).extern_uid).to eq(" uid = foo 5, ou = People, dc = example, dc = com ")
-    expect(identities.find(6).extern_uid).to eq(" uid = foo 6, ou = People, dc = example, dc = com ")
-
-    described_class.new.perform(4, 6)
-    expect(identities.find(1).extern_uid).to eq("uid=foo 1,ou=people,dc=example,dc=com")
-    expect(identities.find(2).extern_uid).to eq("uid=foo 2,ou=people,dc=example,dc=com")
-    expect(identities.find(3).extern_uid).to eq("uid=foo 3,ou=people,dc=example,dc=com")
-    expect(identities.find(4).extern_uid).to eq("uid=foo 4,ou=people,dc=example,dc=com")
-    expect(identities.find(5).extern_uid).to eq(" uid = foo 5, ou = People, dc = example, dc = com ")
-    expect(identities.find(6).extern_uid).to eq("uid=foo 6,ou=people,dc=example,dc=com")
-  end
-end
diff --git a/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb b/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb
deleted file mode 100644
index 0e73c8c59c9..00000000000
--- a/spec/lib/gitlab/background_migration/populate_fork_networks_range_spec.rb
+++ /dev/null
@@ -1,97 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::BackgroundMigration::PopulateForkNetworksRange, :migration, schema: 20170929131201 do
-  let(:migration) { described_class.new }
-  let(:projects) { table(:projects) }
-  let(:base1) { projects.create }
-
-  let(:base2) { projects.create }
-  let(:base2_fork1) { projects.create }
-
-  let!(:forked_project_links) { table(:forked_project_links) }
-  let!(:fork_networks) { table(:fork_networks) }
-  let!(:fork_network_members) { table(:fork_network_members) }
-
-  let(:fork_network1) { fork_networks.find_by(root_project_id: base1.id) }
-  let(:fork_network2) { fork_networks.find_by(root_project_id: base2.id) }
-
-  before do
-    # A normal fork link
-    forked_project_links.create(id: 1,
-                                forked_from_project_id: base1.id,
-                                forked_to_project_id: projects.create.id)
-    forked_project_links.create(id: 2,
-                                forked_from_project_id: base1.id,
-                                forked_to_project_id: projects.create.id)
-    forked_project_links.create(id: 3,
-                                forked_from_project_id: base2.id,
-                                forked_to_project_id: base2_fork1.id)
-
-    # create a fork of a fork
-    forked_project_links.create(id: 4,
-                                forked_from_project_id: base2_fork1.id,
-                                forked_to_project_id: projects.create.id)
-    forked_project_links.create(id: 5,
-                                forked_from_project_id: projects.create.id,
-                                forked_to_project_id: projects.create.id)
-
-    # Stub out the calls to the other migrations
-    allow(BackgroundMigrationWorker).to receive(:perform_in)
-
-    migration.perform(1, 3)
-  end
-
-  it 'creates the fork network' do
-    expect(fork_network1).not_to be_nil
-    expect(fork_network2).not_to be_nil
-  end
-
-  it 'does not create a fork network for a fork-of-fork' do
-    # perfrom the entire batch
-    migration.perform(1, 5)
-
-    expect(fork_networks.find_by(root_project_id: base2_fork1.id)).to be_nil
-  end
-
-  it 'creates memberships for the root of fork networks' do
-    base1_membership = fork_network_members.find_by(fork_network_id: fork_network1.id,
-                                                    project_id: base1.id)
-    base2_membership = fork_network_members.find_by(fork_network_id: fork_network2.id,
-                                                    project_id: base2.id)
-
-    expect(base1_membership).not_to be_nil
-    expect(base2_membership).not_to be_nil
-  end
-
-  it 'creates a fork network for the fork of which the source was deleted' do
-    fork = projects.create
-    forked_project_links.create(id: 6, forked_from_project_id: 99999, forked_to_project_id: fork.id)
-
-    migration.perform(5, 8)
-
-    expect(fork_networks.find_by(root_project_id: 99999)).to be_nil
-    expect(fork_networks.find_by(root_project_id: fork.id)).not_to be_nil
-    expect(fork_network_members.find_by(project_id: fork.id)).not_to be_nil
-  end
-
-  it 'schedules a job for inserting memberships for forks-of-forks' do
-    delay = Gitlab::BackgroundMigration::CreateForkNetworkMembershipsRange::RESCHEDULE_DELAY
-
-    expect(BackgroundMigrationWorker)
-      .to receive(:perform_in).with(delay, "CreateForkNetworkMembershipsRange", [1, 3])
-
-    migration.perform(1, 3)
-  end
-
-  it 'only processes a single batch of links at a time' do
-    expect(fork_networks.count).to eq(2)
-
-    migration.perform(3, 5)
-
-    expect(fork_networks.count).to eq(3)
-  end
-
-  it 'can be repeated without effect' do
-    expect { migration.perform(1, 3) }.not_to change { fork_network_members.count }
-  end
-end
diff --git a/spec/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id_spec.rb b/spec/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id_spec.rb
deleted file mode 100644
index 0cb753c5853..00000000000
--- a/spec/lib/gitlab/background_migration/populate_merge_requests_latest_merge_request_diff_id_spec.rb
+++ /dev/null
@@ -1,62 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::BackgroundMigration::PopulateMergeRequestsLatestMergeRequestDiffId, :migration, schema: 20171026082505 do
-  let(:projects_table) { table(:projects) }
-  let(:merge_requests_table) { table(:merge_requests) }
-  let(:merge_request_diffs_table) { table(:merge_request_diffs) }
-
-  let(:project) { projects_table.create!(name: 'gitlab', path: 'gitlab-org/gitlab-ce') }
-
-  def create_mr!(name, diffs: 0)
-    merge_request =
-      merge_requests_table.create!(target_project_id: project.id,
-                                   target_branch: 'master',
-                                   source_project_id: project.id,
-                                   source_branch: name,
-                                   title: name)
-
-    diffs.times do
-      merge_request_diffs_table.create!(merge_request_id: merge_request.id)
-    end
-
-    merge_request
-  end
-
-  def diffs_for(merge_request)
-    merge_request_diffs_table.where(merge_request_id: merge_request.id)
-  end
-
-  describe '#perform' do
-    it 'ignores MRs without diffs' do
-      merge_request_without_diff = create_mr!('without_diff')
-      mr_id = merge_request_without_diff.id
-
-      expect(merge_request_without_diff.latest_merge_request_diff_id).to be_nil
-
-      expect { subject.perform(mr_id, mr_id) }
-        .not_to change { merge_request_without_diff.reload.latest_merge_request_diff_id }
-    end
-
-    it 'ignores MRs that have a diff ID already set' do
-      merge_request_with_multiple_diffs = create_mr!('with_multiple_diffs', diffs: 3)
-      diff_id = diffs_for(merge_request_with_multiple_diffs).minimum(:id)
-      mr_id = merge_request_with_multiple_diffs.id
-
-      merge_request_with_multiple_diffs.update!(latest_merge_request_diff_id: diff_id)
-
-      expect { subject.perform(mr_id, mr_id) }
-        .not_to change { merge_request_with_multiple_diffs.reload.latest_merge_request_diff_id }
-    end
-
-    it 'migrates multiple MR diffs to the correct values' do
-      merge_requests = Array.new(3).map.with_index { |_, i| create_mr!(i, diffs: 3) }
-
-      subject.perform(merge_requests.first.id, merge_requests.last.id)
-
-      merge_requests.each do |merge_request|
-        expect(merge_request.reload.latest_merge_request_diff_id)
-          .to eq(diffs_for(merge_request).maximum(:id))
-      end
-    end
-  end
-end
diff --git a/spec/migrations/add_foreign_key_to_merge_requests_spec.rb b/spec/migrations/add_foreign_key_to_merge_requests_spec.rb
deleted file mode 100644
index d9ad9a585f0..00000000000
--- a/spec/migrations/add_foreign_key_to_merge_requests_spec.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20170713104829_add_foreign_key_to_merge_requests.rb')
-
-describe AddForeignKeyToMergeRequests, :migration do
-  let(:projects) { table(:projects) }
-  let(:merge_requests) { table(:merge_requests) }
-  let(:pipelines) { table(:ci_pipelines) }
-
-  before do
-    projects.create!(name: 'gitlab', path: 'gitlab-org/gitlab-ce')
-    pipelines.create!(project_id: projects.first.id,
-                      ref: 'some-branch',
-                      sha: 'abc12345')
-
-    # merge request without a pipeline
-    create_merge_request(head_pipeline_id: nil)
-
-    # merge request with non-existent pipeline
-    create_merge_request(head_pipeline_id: 1234)
-
-    # merge reqeust with existing pipeline assigned
-    create_merge_request(head_pipeline_id: pipelines.first.id)
-  end
-
-  it 'correctly adds a foreign key to head_pipeline_id' do
-    migrate!
-
-    expect(merge_requests.first.head_pipeline_id).to be_nil
-    expect(merge_requests.second.head_pipeline_id).to be_nil
-    expect(merge_requests.third.head_pipeline_id).to eq pipelines.first.id
-  end
-
-  def create_merge_request(**opts)
-    merge_requests.create!(source_project_id: projects.first.id,
-                           target_project_id: projects.first.id,
-                           source_branch: 'some-branch',
-                           target_branch: 'master', **opts)
-  end
-end
diff --git a/spec/migrations/add_head_pipeline_for_each_merge_request_spec.rb b/spec/migrations/add_head_pipeline_for_each_merge_request_spec.rb
deleted file mode 100644
index 13dc62595b5..00000000000
--- a/spec/migrations/add_head_pipeline_for_each_merge_request_spec.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170508170547_add_head_pipeline_for_each_merge_request.rb')
-
-describe AddHeadPipelineForEachMergeRequest, :migration do
-  let(:migration) { described_class.new }
-
-  let!(:project) { table(:projects).create! }
-  let!(:other_project) { table(:projects).create! }
-
-  let!(:pipeline_1) { table(:ci_pipelines).create!(project_id: project.id, ref: "branch_1") }
-  let!(:pipeline_2) { table(:ci_pipelines).create!(project_id: other_project.id, ref: "branch_1") }
-  let!(:pipeline_3) { table(:ci_pipelines).create!(project_id: other_project.id, ref: "branch_1") }
-  let!(:pipeline_4) { table(:ci_pipelines).create!(project_id: project.id, ref: "branch_2") }
-
-  let!(:mr_1) { table(:merge_requests).create!(source_project_id: project.id, target_project_id: project.id, source_branch: "branch_1", target_branch: "target_1") }
-  let!(:mr_2) { table(:merge_requests).create!(source_project_id: other_project.id, target_project_id: project.id, source_branch: "branch_1", target_branch: "target_2") }
-  let!(:mr_3) { table(:merge_requests).create!(source_project_id: project.id, target_project_id: project.id, source_branch: "branch_2", target_branch: "master") }
-  let!(:mr_4) { table(:merge_requests).create!(source_project_id: project.id, target_project_id: project.id, source_branch: "branch_3", target_branch: "master") }
-
-  context "#up" do
-    context "when source_project and source_branch of pipeline are the same of merge request" do
-      it "sets head_pipeline_id of given merge requests" do
-        migration.up
-
-        expect(mr_1.reload.head_pipeline_id).to eq(pipeline_1.id)
-        expect(mr_2.reload.head_pipeline_id).to eq(pipeline_3.id)
-        expect(mr_3.reload.head_pipeline_id).to eq(pipeline_4.id)
-        expect(mr_4.reload.head_pipeline_id).to be_nil
-      end
-    end
-  end
-end
diff --git a/spec/migrations/calculate_conv_dev_index_percentages_spec.rb b/spec/migrations/calculate_conv_dev_index_percentages_spec.rb
deleted file mode 100644
index 09c78d02890..00000000000
--- a/spec/migrations/calculate_conv_dev_index_percentages_spec.rb
+++ /dev/null
@@ -1,59 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170803090603_calculate_conv_dev_index_percentages.rb')
-
-describe CalculateConvDevIndexPercentages, :migration do
-  let(:migration) { described_class.new }
-  let!(:conv_dev_index) do
-    table(:conversational_development_index_metrics).create!(
-      leader_issues: 9.256,
-      leader_notes: 0,
-      leader_milestones: 16.2456,
-      leader_boards: 5.2123,
-      leader_merge_requests: 1.2,
-      leader_ci_pipelines: 12.1234,
-      leader_environments: 3.3333,
-      leader_deployments: 1.200,
-      leader_projects_prometheus_active: 0.111,
-      leader_service_desk_issues: 15.891,
-      instance_issues: 1.234,
-      instance_notes: 28.123,
-      instance_milestones: 0,
-      instance_boards: 3.254,
-      instance_merge_requests: 0.6,
-      instance_ci_pipelines: 2.344,
-      instance_environments: 2.2222,
-      instance_deployments: 0.771,
-      instance_projects_prometheus_active: 0.109,
-      instance_service_desk_issues: 13.345,
-      percentage_issues: 0,
-      percentage_notes: 0,
-      percentage_milestones: 0,
-      percentage_boards: 0,
-      percentage_merge_requests: 0,
-      percentage_ci_pipelines: 0,
-      percentage_environments: 0,
-      percentage_deployments: 0,
-      percentage_projects_prometheus_active: 0,
-      percentage_service_desk_issues: 0)
-  end
-
-  describe '#up' do
-    it 'calculates percentages correctly' do
-      migration.up
-      conv_dev_index.reload
-
-      expect(conv_dev_index.percentage_issues).to be_within(0.1).of(13.3)
-      expect(conv_dev_index.percentage_notes).to be_zero # leader 0
-      expect(conv_dev_index.percentage_milestones).to be_zero # instance 0
-      expect(conv_dev_index.percentage_boards).to be_within(0.1).of(62.4)
-      expect(conv_dev_index.percentage_merge_requests).to eq(50.0)
-      expect(conv_dev_index.percentage_ci_pipelines).to be_within(0.1).of(19.3)
-      expect(conv_dev_index.percentage_environments).to be_within(0.1).of(66.7)
-      expect(conv_dev_index.percentage_deployments).to be_within(0.1).of(64.2)
-      expect(conv_dev_index.percentage_projects_prometheus_active).to be_within(0.1).of(98.2)
-      expect(conv_dev_index.percentage_service_desk_issues).to be_within(0.1).of(84.0)
-    end
-  end
-end
diff --git a/spec/migrations/clean_appearance_symlinks_spec.rb b/spec/migrations/clean_appearance_symlinks_spec.rb
deleted file mode 100644
index 9225dc0d894..00000000000
--- a/spec/migrations/clean_appearance_symlinks_spec.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170613111224_clean_appearance_symlinks.rb')
-
-describe CleanAppearanceSymlinks do
-  let(:migration) { described_class.new }
-  let(:test_dir) { File.join(Rails.root, "tmp", "tests", "clean_appearance_test") }
-  let(:uploads_dir) { File.join(test_dir, "public", "uploads") }
-  let(:new_uploads_dir) { File.join(uploads_dir, "system") }
-  let(:original_path) { File.join(new_uploads_dir, 'appearance') }
-  let(:symlink_path) { File.join(uploads_dir, 'appearance') }
-
-  before do
-    FileUtils.remove_dir(test_dir) if File.directory?(test_dir)
-    FileUtils.mkdir_p(uploads_dir)
-    allow(migration).to receive(:base_directory).and_return(test_dir)
-    allow(migration).to receive(:say)
-  end
-
-  describe "#up" do
-    before do
-      FileUtils.mkdir_p(original_path)
-      FileUtils.ln_s(original_path, symlink_path)
-    end
-
-    it 'removes the symlink' do
-      migration.up
-
-      expect(File.symlink?(symlink_path)).to be(false)
-    end
-  end
-
-  describe '#down' do
-    before do
-      FileUtils.mkdir_p(File.join(original_path))
-      FileUtils.touch(File.join(original_path, 'dummy.file'))
-    end
-
-    it 'creates a symlink' do
-      expected_path = File.join(symlink_path, "dummy.file")
-      migration.down
-
-      expect(File.exist?(expected_path)).to be(true)
-      expect(File.symlink?(symlink_path)).to be(true)
-    end
-  end
-end
diff --git a/spec/migrations/clean_stage_id_reference_migration_spec.rb b/spec/migrations/clean_stage_id_reference_migration_spec.rb
deleted file mode 100644
index 9a581df28a2..00000000000
--- a/spec/migrations/clean_stage_id_reference_migration_spec.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20170710083355_clean_stage_id_reference_migration.rb')
-
-describe CleanStageIdReferenceMigration, :migration, :sidekiq, :redis do
-  let(:migration_class) { 'MigrateBuildStageIdReference' }
-  let(:migration) { spy('migration') }
-
-  before do
-    allow(Gitlab::BackgroundMigration.const_get(migration_class))
-      .to receive(:new).and_return(migration)
-  end
-
-  context 'when there are pending background migrations' do
-    it 'processes pending jobs synchronously' do
-      Sidekiq::Testing.disable! do
-        BackgroundMigrationWorker.perform_in(2.minutes, migration_class, [1, 1])
-        BackgroundMigrationWorker.perform_async(migration_class, [1, 1])
-
-        migrate!
-
-        expect(migration).to have_received(:perform).with(1, 1).twice
-      end
-    end
-  end
-  context 'when there are no background migrations pending' do
-    it 'does nothing' do
-      Sidekiq::Testing.disable! do
-        migrate!
-
-        expect(migration).not_to have_received(:perform)
-      end
-    end
-  end
-end
diff --git a/spec/migrations/clean_stages_statuses_migration_spec.rb b/spec/migrations/clean_stages_statuses_migration_spec.rb
deleted file mode 100644
index 38705f8eaae..00000000000
--- a/spec/migrations/clean_stages_statuses_migration_spec.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20170912113435_clean_stages_statuses_migration.rb')
-
-describe CleanStagesStatusesMigration, :migration, :sidekiq, :redis do
-  let(:migration) { spy('migration') }
-
-  before do
-    allow(Gitlab::BackgroundMigration::MigrateStageStatus)
-      .to receive(:new).and_return(migration)
-  end
-
-  context 'when there are pending background migrations' do
-    it 'processes pending jobs synchronously' do
-      Sidekiq::Testing.disable! do
-        BackgroundMigrationWorker
-          .perform_in(2.minutes, 'MigrateStageStatus', [1, 1])
-        BackgroundMigrationWorker
-          .perform_async('MigrateStageStatus', [1, 1])
-
-        migrate!
-
-        expect(migration).to have_received(:perform).with(1, 1).twice
-      end
-    end
-  end
-
-  context 'when there are no background migrations pending' do
-    it 'does nothing' do
-      Sidekiq::Testing.disable! do
-        migrate!
-
-        expect(migration).not_to have_received(:perform)
-      end
-    end
-  end
-
-  context 'when there are still unmigrated stages afterwards' do
-    let(:stages) { table('ci_stages') }
-
-    before do
-      stages.create!(status: nil, name: 'build')
-      stages.create!(status: nil, name: 'test')
-    end
-
-    it 'migrates statuses sequentially in batches' do
-      migrate!
-
-      expect(migration).to have_received(:perform).once
-    end
-  end
-end
diff --git a/spec/migrations/clean_upload_symlinks_spec.rb b/spec/migrations/clean_upload_symlinks_spec.rb
deleted file mode 100644
index 26653b9c008..00000000000
--- a/spec/migrations/clean_upload_symlinks_spec.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170406111121_clean_upload_symlinks.rb')
-
-describe CleanUploadSymlinks do
-  let(:migration) { described_class.new }
-  let(:test_dir) { File.join(Rails.root, "tmp", "tests", "move_uploads_test") }
-  let(:uploads_dir) { File.join(test_dir, "public", "uploads") }
-  let(:new_uploads_dir) { File.join(uploads_dir, "-", "system") }
-  let(:original_path) { File.join(new_uploads_dir, 'user') }
-  let(:symlink_path) { File.join(uploads_dir, 'user') }
-
-  before do
-    FileUtils.remove_dir(test_dir) if File.directory?(test_dir)
-    FileUtils.mkdir_p(uploads_dir)
-    allow(migration).to receive(:base_directory).and_return(test_dir)
-    allow(migration).to receive(:say)
-  end
-
-  describe "#up" do
-    before do
-      FileUtils.mkdir_p(original_path)
-      FileUtils.ln_s(original_path, symlink_path)
-    end
-
-    it 'removes the symlink' do
-      migration.up
-
-      expect(File.symlink?(symlink_path)).to be(false)
-    end
-  end
-
-  describe '#down' do
-    before do
-      FileUtils.mkdir_p(File.join(original_path))
-      FileUtils.touch(File.join(original_path, 'dummy.file'))
-    end
-
-    it 'creates a symlink' do
-      expected_path = File.join(symlink_path, "dummy.file")
-      migration.down
-
-      expect(File.exist?(expected_path)).to be(true)
-      expect(File.symlink?(symlink_path)).to be(true)
-    end
-  end
-end
diff --git a/spec/migrations/cleanup_move_system_upload_folder_symlink_spec.rb b/spec/migrations/cleanup_move_system_upload_folder_symlink_spec.rb
deleted file mode 100644
index 3a9fa8c7113..00000000000
--- a/spec/migrations/cleanup_move_system_upload_folder_symlink_spec.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-require 'spec_helper'
-require Rails.root.join("db", "post_migrate", "20170717111152_cleanup_move_system_upload_folder_symlink.rb")
-
-describe CleanupMoveSystemUploadFolderSymlink do
-  let(:migration) { described_class.new }
-  let(:test_base) { File.join(Rails.root, 'tmp', 'tests', 'move-system-upload-folder') }
-  let(:test_folder) { File.join(test_base, '-', 'system') }
-
-  before do
-    allow(migration).to receive(:base_directory).and_return(test_base)
-    FileUtils.rm_rf(test_base)
-    FileUtils.mkdir_p(test_folder)
-    allow(migration).to receive(:say)
-  end
-
-  describe '#up' do
-    before do
-      FileUtils.ln_s(test_folder, File.join(test_base, 'system'))
-    end
-
-    it 'removes the symlink' do
-      migration.up
-
-      expect(File.exist?(File.join(test_base, 'system'))).to be_falsey
-    end
-  end
-
-  describe '#down' do
-    it 'creates the symlink' do
-      migration.down
-
-      expect(File.symlink?(File.join(test_base, 'system'))).to be_truthy
-    end
-  end
-end
diff --git a/spec/migrations/cleanup_nonexisting_namespace_pending_delete_projects_spec.rb b/spec/migrations/cleanup_nonexisting_namespace_pending_delete_projects_spec.rb
deleted file mode 100644
index 0e6bded29b4..00000000000
--- a/spec/migrations/cleanup_nonexisting_namespace_pending_delete_projects_spec.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170816102555_cleanup_nonexisting_namespace_pending_delete_projects.rb')
-
-describe CleanupNonexistingNamespacePendingDeleteProjects, :migration do
-  let(:projects) { table(:projects) }
-  let(:namespaces) { table(:namespaces) }
-
-  describe '#up' do
-    let!(:some_project) { projects.create! }
-    let(:namespace) { namespaces.create!(name: 'test', path: 'test') }
-
-    it 'only cleans up when namespace does not exist' do
-      projects.create!(pending_delete: true, namespace_id: namespace.id)
-      project = projects.create!(pending_delete: true, namespace_id: 0)
-
-      expect(NamespacelessProjectDestroyWorker).to receive(:bulk_perform_async).with([[project.id]])
-
-      described_class.new.up
-    end
-
-    it 'does nothing when no pending delete projects without namespace found' do
-      projects.create!(pending_delete: true, namespace_id: namespace.id)
-
-      expect(NamespacelessProjectDestroyWorker).not_to receive(:bulk_perform_async)
-
-      described_class.new.up
-    end
-  end
-end
diff --git a/spec/migrations/convert_custom_notification_settings_to_columns_spec.rb b/spec/migrations/convert_custom_notification_settings_to_columns_spec.rb
deleted file mode 100644
index d1bf6bdf9d6..00000000000
--- a/spec/migrations/convert_custom_notification_settings_to_columns_spec.rb
+++ /dev/null
@@ -1,120 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170607121233_convert_custom_notification_settings_to_columns')
-
-describe ConvertCustomNotificationSettingsToColumns, :migration do
-  let(:user_class) { table(:users) }
-
-  let(:settings_params) do
-    [
-      { level: 0, events: [:new_note] }, # disabled, single event
-      { level: 3, events: [:new_issue, :reopen_issue, :close_issue, :reassign_issue] }, # global, multiple events
-      { level: 5, events: described_class::EMAIL_EVENTS }, # custom, all events
-      { level: 5, events: [] } # custom, no events
-    ]
-  end
-
-  let(:notification_settings_before) do
-    settings_params.map do |params|
-      events = {}
-
-      params[:events].each do |event|
-        events[event] = true
-      end
-
-      user = user_class.create!(email: "user-#{SecureRandom.hex}@example.org", username: "user-#{SecureRandom.hex}", encrypted_password: '12345678')
-      create_params = { user_id: user.id, level: params[:level], events: events }
-      notification_setting = described_class::NotificationSetting.create(create_params)
-
-      [notification_setting, params]
-    end
-  end
-
-  let(:notification_settings_after) do
-    settings_params.map do |params|
-      events = {}
-
-      params[:events].each do |event|
-        events[event] = true
-      end
-
-      user = user_class.create!(email: "user-#{SecureRandom.hex}@example.org", username: "user-#{SecureRandom.hex}", encrypted_password: '12345678')
-      create_params = events.merge(user_id: user.id, level: params[:level])
-      notification_setting = described_class::NotificationSetting.create(create_params)
-
-      [notification_setting, params]
-    end
-  end
-
-  describe '#up' do
-    it 'migrates all settings where a custom event is enabled, even if they are not currently using the custom level' do
-      notification_settings_before
-
-      described_class.new.up
-
-      notification_settings_before.each do |(notification_setting, params)|
-        notification_setting.reload
-
-        expect(notification_setting.read_attribute_before_type_cast(:events)).to be_nil
-        expect(notification_setting.level).to eq(params[:level])
-
-        described_class::EMAIL_EVENTS.each do |event|
-          # We don't set the others to false, just let them default to nil
-          expected = params[:events].include?(event) || nil
-
-          expect(notification_setting.read_attribute(event)).to eq(expected)
-        end
-      end
-    end
-  end
-
-  describe '#down' do
-    it 'creates a custom events hash for all settings where at least one event is enabled' do
-      notification_settings_after
-
-      described_class.new.down
-
-      notification_settings_after.each do |(notification_setting, params)|
-        notification_setting.reload
-
-        expect(notification_setting.level).to eq(params[:level])
-
-        if params[:events].empty?
-          # We don't migrate empty settings
-          expect(notification_setting.events).to eq({})
-        else
-          described_class::EMAIL_EVENTS.each do |event|
-            expected = params[:events].include?(event)
-
-            expect(notification_setting.events[event]).to eq(expected)
-            expect(notification_setting.read_attribute(event)).to be_nil
-          end
-        end
-      end
-    end
-
-    it 'reverts the database to the state it was in before' do
-      notification_settings_before
-
-      described_class.new.up
-      described_class.new.down
-
-      notification_settings_before.each do |(notification_setting, params)|
-        notification_setting.reload
-
-        expect(notification_setting.level).to eq(params[:level])
-
-        if params[:events].empty?
-          # We don't migrate empty settings
-          expect(notification_setting.events).to eq({})
-        else
-          described_class::EMAIL_EVENTS.each do |event|
-            expected = params[:events].include?(event)
-
-            expect(notification_setting.events[event]).to eq(expected)
-            expect(notification_setting.read_attribute(event)).to be_nil
-          end
-        end
-      end
-    end
-  end
-end
diff --git a/spec/migrations/delete_conflicting_redirect_routes_spec.rb b/spec/migrations/delete_conflicting_redirect_routes_spec.rb
deleted file mode 100644
index 8a191bd7139..00000000000
--- a/spec/migrations/delete_conflicting_redirect_routes_spec.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170907170235_delete_conflicting_redirect_routes')
-
-describe DeleteConflictingRedirectRoutes, :migration, :sidekiq do
-  let!(:redirect_routes) { table(:redirect_routes) }
-  let!(:routes) { table(:routes) }
-
-  around do |example|
-    Timecop.freeze { example.run }
-  end
-
-  before do
-    routes.create!(id: 1, source_id: 1, source_type: 'Namespace', path: 'foo1')
-    routes.create!(id: 2, source_id: 2, source_type: 'Namespace', path: 'foo2')
-    routes.create!(id: 3, source_id: 3, source_type: 'Namespace', path: 'foo3')
-    routes.create!(id: 4, source_id: 4, source_type: 'Namespace', path: 'foo4')
-    routes.create!(id: 5, source_id: 5, source_type: 'Namespace', path: 'foo5')
-
-    # Valid redirects
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'bar')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'bar2')
-    redirect_routes.create!(source_id: 2, source_type: 'Namespace', path: 'bar3')
-
-    # Conflicting redirects
-    redirect_routes.create!(source_id: 2, source_type: 'Namespace', path: 'foo1')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo2')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo3')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo4')
-    redirect_routes.create!(source_id: 1, source_type: 'Namespace', path: 'foo5')
-  end
-
-  # No-op. See https://gitlab.com/gitlab-com/infrastructure/issues/3460#note_53223252
-  it 'NO-OP: does not schedule any background migrations' do
-    Sidekiq::Testing.fake! do
-      Timecop.freeze do
-        migrate!
-
-        expect(BackgroundMigrationWorker.jobs.size).to eq 0
-      end
-    end
-  end
-end
diff --git a/spec/migrations/fix_wrongly_renamed_routes_spec.rb b/spec/migrations/fix_wrongly_renamed_routes_spec.rb
deleted file mode 100644
index 543cf55f076..00000000000
--- a/spec/migrations/fix_wrongly_renamed_routes_spec.rb
+++ /dev/null
@@ -1,86 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170518231126_fix_wrongly_renamed_routes.rb')
-
-describe FixWronglyRenamedRoutes, :migration do
-  let(:subject) { described_class.new }
-  let(:namespaces_table) { table(:namespaces) }
-  let(:projects_table) { table(:projects) }
-  let(:routes_table) { table(:routes) }
-  let(:broken_namespace) do
-    namespaces_table.create!(name: 'apiis', path: 'apiis').tap do |namespace|
-      routes_table.create!(source_type: 'Namespace', source_id: namespace.id, name: 'api0is', path: 'api0is')
-    end
-  end
-  let(:broken_namespace_route) { routes_table.where(source_type: 'Namespace', source_id: broken_namespace.id).first }
-
-  describe '#wrongly_renamed' do
-    it "includes routes that have names that don't match their namespace" do
-      broken_namespace
-      other_namespace = namespaces_table.create!(name: 'api0', path: 'api0')
-      routes_table.create!(source_type: 'Namespace', source_id: other_namespace.id, name: 'api0', path: 'api0')
-
-      expect(subject.wrongly_renamed.map(&:id))
-        .to contain_exactly(broken_namespace_route.id)
-    end
-  end
-
-  describe "#paths_and_corrections" do
-    it 'finds the wrong path and gets the correction from the namespace' do
-      broken_namespace
-      namespaces_table.create!(name: 'uploads-test', path: 'uploads-test').tap do |namespace|
-        routes_table.create!(source_type: 'Namespace', source_id: namespace.id, name: 'uploads-test', path: 'uploads0-test')
-      end
-
-      expected_result = [
-        { 'namespace_path' => 'apiis', 'path' => 'api0is' },
-        { 'namespace_path' => 'uploads-test', 'path' => 'uploads0-test' }
-      ]
-
-      expect(subject.paths_and_corrections).to include(*expected_result)
-    end
-  end
-
-  describe '#routes_in_namespace_query' do
-    it 'includes only the required routes' do
-      namespace = namespaces_table.create!(name: 'hello', path: 'hello')
-      namespace_route = routes_table.create!(source_type: 'Namespace', source_id: namespace.id, name: 'hello', path: 'hello')
-      project = projects_table.new(name: 'my-project', path: 'my-project', namespace_id: namespace.id).tap do |project|
-        project.save!(validate: false)
-      end
-      routes_table.create!(source_type: 'Project', source_id: project.id, name: 'my-project', path: 'hello/my-project')
-      _other_namespace = namespaces_table.create!(name: 'hello0', path: 'hello0')
-
-      result = routes_table.where(subject.routes_in_namespace_query('hello'))
-      project_route = routes_table.where(source_type: 'Project', source_id: project.id).first
-
-      expect(result).to contain_exactly(namespace_route, project_route)
-    end
-  end
-
-  describe '#up' do
-    it 'renames incorrectly named routes' do
-      broken_project =
-        projects_table.new(name: 'broken-project', path: 'broken-project', namespace_id: broken_namespace.id).tap do |project|
-          project.save!(validate: false)
-          routes_table.create!(source_type: 'Project', source_id: project.id, name: 'broken-project', path: 'api0is/broken-project')
-        end
-
-      subject.up
-
-      broken_project_route = routes_table.where(source_type: 'Project', source_id: broken_project.id).first
-
-      expect(broken_project_route.path).to eq('apiis/broken-project')
-      expect(broken_namespace_route.reload.path).to eq('apiis')
-    end
-
-    it "doesn't touch namespaces that look like something that should be renamed" do
-      namespaces_table.create!(name: 'apiis', path: 'apiis')
-      namespace = namespaces_table.create!(name: 'hello', path: 'api0')
-      namespace_route = routes_table.create!(source_type: 'Namespace', source_id: namespace.id, name: 'hello', path: 'api0')
-
-      subject.up
-
-      expect(namespace_route.reload.path).to eq('api0')
-    end
-  end
-end
diff --git a/spec/migrations/issues_moved_to_id_foreign_key_spec.rb b/spec/migrations/issues_moved_to_id_foreign_key_spec.rb
deleted file mode 100644
index 71a4e71ac8a..00000000000
--- a/spec/migrations/issues_moved_to_id_foreign_key_spec.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20171106151218_issues_moved_to_id_foreign_key.rb')
-
-describe IssuesMovedToIdForeignKey, :migration do
-  let(:issues) { table(:issues) }
-
-  let!(:issue_third) { issues.create! }
-  let!(:issue_second) { issues.create!(moved_to_id: issue_third.id) }
-  let!(:issue_first) { issues.create!(moved_to_id: issue_second.id) }
-
-  subject { described_class.new }
-
-  it 'removes the orphaned moved_to_id' do
-    subject.down
-
-    issue_third.update!(moved_to_id: 0)
-
-    subject.up
-
-    expect(issue_first.reload.moved_to_id).to eq(issue_second.id)
-    expect(issue_second.reload.moved_to_id).to eq(issue_third.id)
-    expect(issue_third.reload.moved_to_id).to be_nil
-  end
-end
diff --git a/spec/migrations/migrate_build_stage_reference_again_spec.rb b/spec/migrations/migrate_build_stage_reference_again_spec.rb
deleted file mode 100644
index 6be480ce58e..00000000000
--- a/spec/migrations/migrate_build_stage_reference_again_spec.rb
+++ /dev/null
@@ -1,62 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170526190000_migrate_build_stage_reference_again.rb')
-
-describe MigrateBuildStageReferenceAgain, :migration do
-  ##
-  # Create test data - pipeline and CI/CD jobs.
-  #
-
-  let(:jobs) { table(:ci_builds) }
-  let(:stages) { table(:ci_stages) }
-  let(:pipelines) { table(:ci_pipelines) }
-  let(:projects) { table(:projects) }
-
-  before do
-    # Create projects
-    #
-    projects.create!(id: 123, name: 'gitlab1', path: 'gitlab1')
-    projects.create!(id: 456, name: 'gitlab2', path: 'gitlab2')
-
-    # Create CI/CD pipelines
-    #
-    pipelines.create!(id: 1, project_id: 123, ref: 'master', sha: 'adf43c3a')
-    pipelines.create!(id: 2, project_id: 456, ref: 'feature', sha: '21a3deb')
-
-    # Create CI/CD jobs
-    #
-    jobs.create!(id: 1, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
-    jobs.create!(id: 2, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
-    jobs.create!(id: 3, commit_id: 1, project_id: 123, stage_idx: 1, stage: 'test')
-    jobs.create!(id: 4, commit_id: 1, project_id: 123, stage_idx: 3, stage: 'deploy')
-    jobs.create!(id: 5, commit_id: 2, project_id: 456, stage_idx: 2, stage: 'test:2')
-    jobs.create!(id: 6, commit_id: 2, project_id: 456, stage_idx: 1, stage: 'test:1')
-    jobs.create!(id: 7, commit_id: 2, project_id: 456, stage_idx: 1, stage: 'test:1')
-    jobs.create!(id: 8, commit_id: 3, project_id: 789, stage_idx: 3, stage: 'deploy')
-
-    # Create CI/CD stages
-    #
-    stages.create(id: 101, pipeline_id: 1, project_id: 123, name: 'test')
-    stages.create(id: 102, pipeline_id: 1, project_id: 123, name: 'build')
-    stages.create(id: 103, pipeline_id: 1, project_id: 123, name: 'deploy')
-    stages.create(id: 104, pipeline_id: 2, project_id: 456, name: 'test:1')
-    stages.create(id: 105, pipeline_id: 2, project_id: 456, name: 'test:2')
-    stages.create(id: 106, pipeline_id: 2, project_id: 456, name: 'deploy')
-  end
-
-  it 'correctly migrate build stage references' do
-    expect(jobs.where(stage_id: nil).count).to eq 8
-
-    migrate!
-
-    expect(jobs.where(stage_id: nil).count).to eq 1
-
-    expect(jobs.find(1).stage_id).to eq 102
-    expect(jobs.find(2).stage_id).to eq 102
-    expect(jobs.find(3).stage_id).to eq 101
-    expect(jobs.find(4).stage_id).to eq 103
-    expect(jobs.find(5).stage_id).to eq 105
-    expect(jobs.find(6).stage_id).to eq 104
-    expect(jobs.find(7).stage_id).to eq 104
-    expect(jobs.find(8).stage_id).to eq nil
-  end
-end
diff --git a/spec/migrations/migrate_gcp_clusters_to_new_clusters_architectures_spec.rb b/spec/migrations/migrate_gcp_clusters_to_new_clusters_architectures_spec.rb
deleted file mode 100644
index ba4c66057d4..00000000000
--- a/spec/migrations/migrate_gcp_clusters_to_new_clusters_architectures_spec.rb
+++ /dev/null
@@ -1,181 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20171013104327_migrate_gcp_clusters_to_new_clusters_architectures.rb')
-
-describe MigrateGcpClustersToNewClustersArchitectures, :migration do
-  let(:projects) { table(:projects) }
-  let(:project) { projects.create }
-  let(:users) { table(:users) }
-  let(:user) { users.create! }
-  let(:service) { GcpMigrationSpec::KubernetesService.create!(project_id: project.id) }
-
-  module GcpMigrationSpec
-    class KubernetesService < ActiveRecord::Base
-      self.table_name = 'services'
-
-      serialize :properties, JSON
-
-      default_value_for :active, true
-      default_value_for :type, 'KubernetesService'
-      default_value_for :properties, {
-        api_url: 'https://kubernetes.example.com',
-        token: 'a' * 40
-      }
-    end
-  end
-
-  context 'when cluster is being created' do
-    let(:project_id) { project.id }
-    let(:user_id) { user.id }
-    let(:service_id) { service.id }
-    let(:status) { 2 } # creating
-    let(:gcp_cluster_size) { 1 }
-    let(:created_at) { "'2017-10-17 20:24:02'" }
-    let(:updated_at) { "'2017-10-17 20:28:44'" }
-    let(:enabled) { true }
-    let(:status_reason) { "''" }
-    let(:project_namespace) { "'sample-app'" }
-    let(:endpoint) { 'NULL' }
-    let(:ca_cert) { 'NULL' }
-    let(:encrypted_kubernetes_token) { 'NULL' }
-    let(:encrypted_kubernetes_token_iv) { 'NULL' }
-    let(:username) { 'NULL' }
-    let(:encrypted_password) { 'NULL' }
-    let(:encrypted_password_iv) { 'NULL' }
-    let(:gcp_project_id) { "'gcp_project_id'" }
-    let(:gcp_cluster_zone) { "'gcp_cluster_zone'" }
-    let(:gcp_cluster_name) { "'gcp_cluster_name'" }
-    let(:gcp_machine_type) { "'gcp_machine_type'" }
-    let(:gcp_operation_id) { 'NULL' }
-    let(:encrypted_gcp_token) { "'encrypted_gcp_token'" }
-    let(:encrypted_gcp_token_iv) { "'encrypted_gcp_token_iv'" }
-
-    let(:cluster) { described_class::Cluster.last }
-    let(:cluster_id) { cluster.id }
-
-    before do
-      ActiveRecord::Base.connection.execute <<-SQL
-        INSERT INTO gcp_clusters (project_id, user_id, service_id, status, gcp_cluster_size, created_at, updated_at, enabled, status_reason, project_namespace, endpoint, ca_cert, encrypted_kubernetes_token, encrypted_kubernetes_token_iv, username, encrypted_password, encrypted_password_iv, gcp_project_id, gcp_cluster_zone, gcp_cluster_name, gcp_machine_type, gcp_operation_id, encrypted_gcp_token, encrypted_gcp_token_iv)
-        VALUES (#{project_id}, #{user_id}, #{service_id}, #{status}, #{gcp_cluster_size}, #{created_at}, #{updated_at}, #{enabled}, #{status_reason}, #{project_namespace}, #{endpoint}, #{ca_cert}, #{encrypted_kubernetes_token}, #{encrypted_kubernetes_token_iv}, #{username}, #{encrypted_password}, #{encrypted_password_iv}, #{gcp_project_id}, #{gcp_cluster_zone}, #{gcp_cluster_name}, #{gcp_machine_type}, #{gcp_operation_id}, #{encrypted_gcp_token}, #{encrypted_gcp_token_iv});
-      SQL
-    end
-
-    it 'correctly migrate to new clusters architectures' do
-      migrate!
-
-      expect(described_class::Cluster.count).to eq(1)
-      expect(described_class::ClustersProject.count).to eq(1)
-      expect(described_class::ProvidersGcp.count).to eq(1)
-      expect(described_class::PlatformsKubernetes.count).to eq(1)
-
-      expect(cluster.user_id).to eq(user.id)
-      expect(cluster.enabled).to be_truthy
-      expect(cluster.name).to eq(gcp_cluster_name.delete!("'"))
-      expect(cluster.provider_type).to eq('gcp')
-      expect(cluster.platform_type).to eq('kubernetes')
-
-      expect(cluster.project_ids).to include(project.id)
-
-      expect(cluster.provider_gcp.cluster_id).to eq(cluster.id)
-      expect(cluster.provider_gcp.status).to eq(status)
-      expect(cluster.provider_gcp.status_reason).to eq(tr(status_reason))
-      expect(cluster.provider_gcp.gcp_project_id).to eq(tr(gcp_project_id))
-      expect(cluster.provider_gcp.zone).to eq(tr(gcp_cluster_zone))
-      expect(cluster.provider_gcp.num_nodes).to eq(gcp_cluster_size)
-      expect(cluster.provider_gcp.machine_type).to eq(tr(gcp_machine_type))
-      expect(cluster.provider_gcp.operation_id).to be_nil
-      expect(cluster.provider_gcp.endpoint).to be_nil
-      expect(cluster.provider_gcp.encrypted_access_token).to eq(tr(encrypted_gcp_token))
-      expect(cluster.provider_gcp.encrypted_access_token_iv).to eq(tr(encrypted_gcp_token_iv))
-
-      expect(cluster.platform_kubernetes.cluster_id).to eq(cluster.id)
-      expect(cluster.platform_kubernetes.api_url).to be_nil
-      expect(cluster.platform_kubernetes.ca_cert).to be_nil
-      expect(cluster.platform_kubernetes.namespace).to eq(tr(project_namespace))
-      expect(cluster.platform_kubernetes.username).to be_nil
-      expect(cluster.platform_kubernetes.encrypted_password).to be_nil
-      expect(cluster.platform_kubernetes.encrypted_password_iv).to be_nil
-      expect(cluster.platform_kubernetes.encrypted_token).to be_nil
-      expect(cluster.platform_kubernetes.encrypted_token_iv).to be_nil
-    end
-  end
-
-  context 'when cluster has been created' do
-    let(:project_id) { project.id }
-    let(:user_id) { user.id }
-    let(:service_id) { service.id }
-    let(:status) { 3 } # created
-    let(:gcp_cluster_size) { 1 }
-    let(:created_at) { "'2017-10-17 20:24:02'" }
-    let(:updated_at) { "'2017-10-17 20:28:44'" }
-    let(:enabled) { true }
-    let(:status_reason) { "'general error'" }
-    let(:project_namespace) { "'sample-app'" }
-    let(:endpoint) { "'111.111.111.111'" }
-    let(:ca_cert) { "'ca_cert'" }
-    let(:encrypted_kubernetes_token) { "'encrypted_kubernetes_token'" }
-    let(:encrypted_kubernetes_token_iv) { "'encrypted_kubernetes_token_iv'" }
-    let(:username) { "'username'" }
-    let(:encrypted_password) { "'encrypted_password'" }
-    let(:encrypted_password_iv) { "'encrypted_password_iv'" }
-    let(:gcp_project_id) { "'gcp_project_id'" }
-    let(:gcp_cluster_zone) { "'gcp_cluster_zone'" }
-    let(:gcp_cluster_name) { "'gcp_cluster_name'" }
-    let(:gcp_machine_type) { "'gcp_machine_type'" }
-    let(:gcp_operation_id) { "'gcp_operation_id'" }
-    let(:encrypted_gcp_token) { "'encrypted_gcp_token'" }
-    let(:encrypted_gcp_token_iv) { "'encrypted_gcp_token_iv'" }
-
-    let(:cluster) { described_class::Cluster.last }
-    let(:cluster_id) { cluster.id }
-
-    before do
-      ActiveRecord::Base.connection.execute <<-SQL
-        INSERT INTO gcp_clusters (project_id, user_id, service_id, status, gcp_cluster_size, created_at, updated_at, enabled, status_reason, project_namespace, endpoint, ca_cert, encrypted_kubernetes_token, encrypted_kubernetes_token_iv, username, encrypted_password, encrypted_password_iv, gcp_project_id, gcp_cluster_zone, gcp_cluster_name, gcp_machine_type, gcp_operation_id, encrypted_gcp_token, encrypted_gcp_token_iv)
-        VALUES (#{project_id}, #{user_id}, #{service_id}, #{status}, #{gcp_cluster_size}, #{created_at}, #{updated_at}, #{enabled}, #{status_reason}, #{project_namespace}, #{endpoint}, #{ca_cert}, #{encrypted_kubernetes_token}, #{encrypted_kubernetes_token_iv}, #{username}, #{encrypted_password}, #{encrypted_password_iv}, #{gcp_project_id}, #{gcp_cluster_zone}, #{gcp_cluster_name}, #{gcp_machine_type}, #{gcp_operation_id}, #{encrypted_gcp_token}, #{encrypted_gcp_token_iv});
-      SQL
-    end
-
-    it 'correctly migrate to new clusters architectures' do
-      migrate!
-
-      expect(described_class::Cluster.count).to eq(1)
-      expect(described_class::ClustersProject.count).to eq(1)
-      expect(described_class::ProvidersGcp.count).to eq(1)
-      expect(described_class::PlatformsKubernetes.count).to eq(1)
-
-      expect(cluster.user_id).to eq(user.id)
-      expect(cluster.enabled).to be_truthy
-      expect(cluster.name).to eq(tr(gcp_cluster_name))
-      expect(cluster.provider_type).to eq('gcp')
-      expect(cluster.platform_type).to eq('kubernetes')
-
-      expect(cluster.project_ids).to include(project.id)
-
-      expect(cluster.provider_gcp.cluster_id).to eq(cluster.id)
-      expect(cluster.provider_gcp.status).to eq(status)
-      expect(cluster.provider_gcp.status_reason).to eq(tr(status_reason))
-      expect(cluster.provider_gcp.gcp_project_id).to eq(tr(gcp_project_id))
-      expect(cluster.provider_gcp.zone).to eq(tr(gcp_cluster_zone))
-      expect(cluster.provider_gcp.num_nodes).to eq(gcp_cluster_size)
-      expect(cluster.provider_gcp.machine_type).to eq(tr(gcp_machine_type))
-      expect(cluster.provider_gcp.operation_id).to eq(tr(gcp_operation_id))
-      expect(cluster.provider_gcp.endpoint).to eq(tr(endpoint))
-      expect(cluster.provider_gcp.encrypted_access_token).to eq(tr(encrypted_gcp_token))
-      expect(cluster.provider_gcp.encrypted_access_token_iv).to eq(tr(encrypted_gcp_token_iv))
-
-      expect(cluster.platform_kubernetes.cluster_id).to eq(cluster.id)
-      expect(cluster.platform_kubernetes.api_url).to eq('https://' + tr(endpoint))
-      expect(cluster.platform_kubernetes.ca_cert).to eq(tr(ca_cert))
-      expect(cluster.platform_kubernetes.namespace).to eq(tr(project_namespace))
-      expect(cluster.platform_kubernetes.username).to eq(tr(username))
-      expect(cluster.platform_kubernetes.encrypted_password).to eq(tr(encrypted_password))
-      expect(cluster.platform_kubernetes.encrypted_password_iv).to eq(tr(encrypted_password_iv))
-      expect(cluster.platform_kubernetes.encrypted_token).to eq(tr(encrypted_kubernetes_token))
-      expect(cluster.platform_kubernetes.encrypted_token_iv).to eq(tr(encrypted_kubernetes_token_iv))
-    end
-  end
-
-  def tr(str)
-    str.delete("'")
-  end
-end
diff --git a/spec/migrations/migrate_issues_to_ghost_user_spec.rb b/spec/migrations/migrate_issues_to_ghost_user_spec.rb
deleted file mode 100644
index 0016f058a17..00000000000
--- a/spec/migrations/migrate_issues_to_ghost_user_spec.rb
+++ /dev/null
@@ -1,51 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20170825104051_migrate_issues_to_ghost_user.rb')
-
-describe MigrateIssuesToGhostUser, :migration do
-  describe '#up' do
-    let(:projects) { table(:projects) }
-    let(:issues) { table(:issues) }
-    let(:users) { table(:users) }
-
-    before do
-      project = projects.create!(name: 'gitlab', namespace_id: 1)
-      user = users.create(email: 'test@example.com')
-      issues.create(title: 'Issue 1', author_id: nil, project_id: project.id)
-      issues.create(title: 'Issue 2', author_id: user.id, project_id: project.id)
-    end
-
-    context 'when ghost user exists' do
-      let!(:ghost) { users.create(ghost: true, email: 'ghost@example.com') }
-
-      it 'does not create a new user' do
-        expect { migrate! }.not_to change { User.count }
-      end
-
-      it 'migrates issues where author = nil to the ghost user' do
-        migrate!
-
-        expect(issues.first.reload.author_id).to eq(ghost.id)
-      end
-
-      it 'does not change issues authored by an existing user' do
-        expect { migrate! }.not_to change { issues.second.reload.author_id}
-      end
-    end
-
-    context 'when ghost user does not exist' do
-      it 'creates a new user' do
-        expect { migrate! }.to change { User.count }.by(1)
-      end
-
-      it 'migrates issues where author = nil to the ghost user' do
-        migrate!
-
-        expect(issues.first.reload.author_id).to eq(User.ghost.id)
-      end
-
-      it 'does not change issues authored by an existing user' do
-        expect { migrate! }.not_to change { issues.second.reload.author_id}
-      end
-    end
-  end
-end
diff --git a/spec/migrations/migrate_kubernetes_service_to_new_clusters_architectures_spec.rb b/spec/migrations/migrate_kubernetes_service_to_new_clusters_architectures_spec.rb
deleted file mode 100644
index df0015b6dd3..00000000000
--- a/spec/migrations/migrate_kubernetes_service_to_new_clusters_architectures_spec.rb
+++ /dev/null
@@ -1,312 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20171124104327_migrate_kubernetes_service_to_new_clusters_architectures.rb')
-
-describe MigrateKubernetesServiceToNewClustersArchitectures, :migration do
-  context 'when unique KubernetesService exists' do
-    shared_examples 'KubernetesService migration' do
-      let(:sample_num) { 2 }
-
-      let(:projects) do
-        (1..sample_num).each_with_object([]) do |n, array|
-          array << MigrateKubernetesServiceToNewClustersArchitectures::Project.create!
-        end
-      end
-
-      let!(:kubernetes_services) do
-        projects.map do |project|
-          MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-            project: project,
-            active: active,
-            category: 'deployment',
-            type: 'KubernetesService',
-            properties: "{\"namespace\":\"prod\",\"api_url\":\"https://kubernetes#{project.id}.com\",\"ca_pem\":\"ca_pem#{project.id}\",\"token\":\"token#{project.id}\"}")
-        end
-      end
-
-      it 'migrates the KubernetesService to Platform::Kubernetes' do
-        expect { migrate! }.to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }.by(sample_num)
-
-        projects.each do |project|
-          project.clusters.last.tap do |cluster|
-            expect(cluster.enabled).to eq(active)
-            expect(cluster.platform_kubernetes.api_url).to eq(project.kubernetes_service.api_url)
-            expect(cluster.platform_kubernetes.ca_cert).to eq(project.kubernetes_service.ca_pem)
-            expect(cluster.platform_kubernetes.token).to eq(project.kubernetes_service.token)
-            expect(project.kubernetes_service).not_to be_active
-          end
-        end
-      end
-    end
-
-    context 'when KubernetesService is active' do
-      let(:active) { true }
-
-      it_behaves_like 'KubernetesService migration'
-    end
-  end
-
-  context 'when unique KubernetesService spawned from Service Template' do
-    let(:sample_num) { 2 }
-
-    let(:projects) do
-      (1..sample_num).each_with_object([]) do |n, array|
-        array << MigrateKubernetesServiceToNewClustersArchitectures::Project.create!
-      end
-    end
-
-    let!(:kubernetes_service_template) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        template: true,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{\"namespace\":\"prod\",\"api_url\":\"https://sample.kubernetes.com\",\"ca_pem\":\"ca_pem-sample\",\"token\":\"token-sample\"}")
-    end
-
-    let!(:kubernetes_services) do
-      projects.map do |project|
-        MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-          project: project,
-          category: 'deployment',
-          type: 'KubernetesService',
-          properties: "{\"namespace\":\"prod\",\"api_url\":\"#{kubernetes_service_template.api_url}\",\"ca_pem\":\"#{kubernetes_service_template.ca_pem}\",\"token\":\"#{kubernetes_service_template.token}\"}")
-      end
-    end
-
-    it 'migrates the KubernetesService to Platform::Kubernetes without template' do
-      expect { migrate! }.to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }.by(sample_num)
-
-      projects.each do |project|
-        project.clusters.last.tap do |cluster|
-          expect(cluster.platform_kubernetes.api_url).to eq(project.kubernetes_service.api_url)
-          expect(cluster.platform_kubernetes.ca_cert).to eq(project.kubernetes_service.ca_pem)
-          expect(cluster.platform_kubernetes.token).to eq(project.kubernetes_service.token)
-          expect(project.kubernetes_service).not_to be_active
-        end
-      end
-    end
-  end
-
-  context 'when managed KubernetesService exists' do
-    let(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    let(:cluster) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create!(
-        projects: [project],
-        name: 'sample-cluster',
-        platform_type: :kubernetes,
-        provider_type: :user,
-        platform_kubernetes_attributes: {
-          api_url: 'https://sample.kubernetes.com',
-          ca_cert: 'ca_pem-sample',
-          token: 'token-sample'
-        } )
-    end
-
-    let!(:kubernetes_service) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        project: project,
-        active: cluster.enabled,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{\"api_url\":\"#{cluster.platform_kubernetes.api_url}\"}")
-    end
-
-    it 'does not migrate the KubernetesService and disables the kubernetes_service' do # Because the corresponding Platform::Kubernetes already exists
-      expect { migrate! }.not_to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }
-
-      kubernetes_service.reload
-      expect(kubernetes_service).not_to be_active
-    end
-  end
-
-  context 'when production cluster has already been existed' do # i.e. There are no environment_scope conflicts
-    let(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    let(:cluster) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create!(
-        projects: [project],
-        name: 'sample-cluster',
-        platform_type: :kubernetes,
-        provider_type: :user,
-        environment_scope: 'production/*',
-        platform_kubernetes_attributes: {
-          api_url: 'https://sample.kubernetes.com',
-          ca_cert: 'ca_pem-sample',
-          token: 'token-sample'
-        } )
-    end
-
-    let!(:kubernetes_service) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        project: project,
-        active: true,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{\"api_url\":\"https://debug.kube.com\"}")
-    end
-
-    it 'migrates the KubernetesService to Platform::Kubernetes' do
-      expect { migrate! }.to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }.by(1)
-
-      kubernetes_service.reload
-      project.clusters.last.tap do |cluster|
-        expect(cluster.environment_scope).to eq('*')
-        expect(cluster.platform_kubernetes.api_url).to eq(kubernetes_service.api_url)
-        expect(cluster.platform_kubernetes.ca_cert).to eq(kubernetes_service.ca_pem)
-        expect(cluster.platform_kubernetes.token).to eq(kubernetes_service.token)
-        expect(kubernetes_service).not_to be_active
-      end
-    end
-  end
-
-  context 'when default cluster has already been existed' do
-    let(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    let!(:cluster) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create!(
-        projects: [project],
-        name: 'sample-cluster',
-        platform_type: :kubernetes,
-        provider_type: :user,
-        environment_scope: '*',
-        platform_kubernetes_attributes: {
-          api_url: 'https://sample.kubernetes.com',
-          ca_cert: 'ca_pem-sample',
-          token: 'token-sample'
-        } )
-    end
-
-    let!(:kubernetes_service) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        project: project,
-        active: true,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{\"api_url\":\"https://debug.kube.com\"}")
-    end
-
-    it 'migrates the KubernetesService to Platform::Kubernetes with dedicated environment_scope' do # Because environment_scope is duplicated
-      expect { migrate! }.to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }.by(1)
-
-      kubernetes_service.reload
-      project.clusters.last.tap do |cluster|
-        expect(cluster.environment_scope).to eq('migrated/*')
-        expect(cluster.platform_kubernetes.api_url).to eq(kubernetes_service.api_url)
-        expect(cluster.platform_kubernetes.ca_cert).to eq(kubernetes_service.ca_pem)
-        expect(cluster.platform_kubernetes.token).to eq(kubernetes_service.token)
-        expect(kubernetes_service).not_to be_active
-      end
-    end
-  end
-
-  context 'when default cluster and migrated cluster has already been existed' do
-    let(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    let!(:cluster) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create!(
-        projects: [project],
-        name: 'sample-cluster',
-        platform_type: :kubernetes,
-        provider_type: :user,
-        environment_scope: '*',
-        platform_kubernetes_attributes: {
-          api_url: 'https://sample.kubernetes.com',
-          ca_cert: 'ca_pem-sample',
-          token: 'token-sample'
-        } )
-    end
-
-    let!(:migrated_cluster) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Cluster.create!(
-        projects: [project],
-        name: 'sample-cluster',
-        platform_type: :kubernetes,
-        provider_type: :user,
-        environment_scope: 'migrated/*',
-        platform_kubernetes_attributes: {
-          api_url: 'https://sample.kubernetes.com',
-          ca_cert: 'ca_pem-sample',
-          token: 'token-sample'
-        } )
-    end
-
-    let!(:kubernetes_service) do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        project: project,
-        active: true,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{\"api_url\":\"https://debug.kube.com\"}")
-    end
-
-    it 'migrates the KubernetesService to Platform::Kubernetes with dedicated environment_scope' do # Because environment_scope is duplicated
-      expect { migrate! }.to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }.by(1)
-
-      kubernetes_service.reload
-      project.clusters.last.tap do |cluster|
-        expect(cluster.environment_scope).to eq('migrated0/*')
-        expect(cluster.platform_kubernetes.api_url).to eq(kubernetes_service.api_url)
-        expect(cluster.platform_kubernetes.ca_cert).to eq(kubernetes_service.ca_pem)
-        expect(cluster.platform_kubernetes.token).to eq(kubernetes_service.token)
-        expect(kubernetes_service).not_to be_active
-      end
-    end
-  end
-
-  context 'when KubernetesService has nullified parameters' do
-    let(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    before do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        project: project,
-        active: false,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{}")
-    end
-
-    it 'does not migrate the KubernetesService and disables the kubernetes_service' do
-      expect { migrate! }.not_to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }
-
-      expect(project.kubernetes_service).not_to be_active
-    end
-  end
-
-  # Platforms::Kubernetes validates `token` reagdless of the activeness,
-  # whereas KubernetesService validates `token` if only it's activated
-  # However, in this migration file, there are no validations because of the re-defined model class
-  # therefore, we should safely add this raw to Platform::Kubernetes
-  context 'when KubernetesService has empty token' do
-    let(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    before do
-      MigrateKubernetesServiceToNewClustersArchitectures::Service.create!(
-        project: project,
-        active: false,
-        category: 'deployment',
-        type: 'KubernetesService',
-        properties: "{\"namespace\":\"prod\",\"api_url\":\"http://111.111.111.111\",\"ca_pem\":\"a\",\"token\":\"\"}")
-    end
-
-    it 'does not migrate the KubernetesService and disables the kubernetes_service' do
-      expect { migrate! }.to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }.by(1)
-
-      project.clusters.last.tap do |cluster|
-        expect(cluster.environment_scope).to eq('*')
-        expect(cluster.platform_kubernetes.namespace).to eq('prod')
-        expect(cluster.platform_kubernetes.api_url).to eq('http://111.111.111.111')
-        expect(cluster.platform_kubernetes.ca_cert).to eq('a')
-        expect(cluster.platform_kubernetes.token).to be_empty
-        expect(project.kubernetes_service).not_to be_active
-      end
-    end
-  end
-
-  context 'when KubernetesService does not exist' do
-    let!(:project) { MigrateKubernetesServiceToNewClustersArchitectures::Project.create! }
-
-    it 'does not migrate the KubernetesService' do
-      expect { migrate! }.not_to change { MigrateKubernetesServiceToNewClustersArchitectures::Cluster.count }
-    end
-  end
-end
diff --git a/spec/migrations/migrate_old_artifacts_spec.rb b/spec/migrations/migrate_old_artifacts_spec.rb
deleted file mode 100644
index bc826d91471..00000000000
--- a/spec/migrations/migrate_old_artifacts_spec.rb
+++ /dev/null
@@ -1,140 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170523083112_migrate_old_artifacts.rb')
-
-# Adding the ci_job_artifacts table (from the 20170918072948 schema)
-# makes the use of model code below easier.
-describe MigrateOldArtifacts, :migration, schema: 20170918072948 do
-  let(:migration) { described_class.new }
-  let!(:directory) { Dir.mktmpdir }
-
-  before do
-    allow(Gitlab.config.artifacts).to receive(:path).and_return(directory)
-  end
-
-  after do
-    FileUtils.remove_entry_secure(directory)
-  end
-
-  context 'with migratable data' do
-    let(:projects) { table(:projects) }
-    let(:ci_pipelines) { table(:ci_pipelines) }
-    let(:ci_builds) { table(:ci_builds) }
-
-    let!(:project1) { projects.create!(ci_id: 2) }
-    let!(:project2) { projects.create!(ci_id: 3) }
-    let!(:project3) { projects.create! }
-
-    let!(:pipeline1) { ci_pipelines.create!(project_id: project1.id) }
-    let!(:pipeline2) { ci_pipelines.create!(project_id: project2.id) }
-    let!(:pipeline3) { ci_pipelines.create!(project_id: project3.id) }
-
-    let!(:build_with_legacy_artifacts) { ci_builds.create!(commit_id: pipeline1.id, project_id: project1.id, type: 'Ci::Build').becomes(Ci::Build) }
-    let!(:build_without_artifacts) { ci_builds.create!(commit_id: pipeline1.id, project_id: project1.id, type: 'Ci::Build').becomes(Ci::Build) }
-    let!(:build2) { ci_builds.create!(commit_id: pipeline2.id, project_id: project2.id, type: 'Ci::Build').becomes(Ci::Build) }
-    let!(:build3) { ci_builds.create!(commit_id: pipeline3.id, project_id: project3.id, type: 'Ci::Build').becomes(Ci::Build) }
-
-    before do
-      setup_builds(build2, build3)
-
-      store_artifacts_in_legacy_path(build_with_legacy_artifacts)
-    end
-
-    it "legacy artifacts are not accessible" do
-      expect(build_with_legacy_artifacts.artifacts?).to be_falsey
-    end
-
-    describe '#min_id' do
-      subject { migration.send(:min_id) }
-
-      it 'returns the newest build for which ci_id is not defined' do
-        is_expected.to eq(build3.id)
-      end
-    end
-
-    describe '#builds_with_artifacts' do
-      subject { migration.send(:builds_with_artifacts).map(&:id) }
-
-      it 'returns a list of builds that has artifacts and could be migrated' do
-        is_expected.to contain_exactly(build_with_legacy_artifacts.id, build2.id)
-      end
-    end
-
-    describe '#up' do
-      context 'when migrating artifacts' do
-        before do
-          migration.up
-        end
-
-        it 'all files do have artifacts' do
-          Ci::Build.with_artifacts_archive do |build|
-            expect(build).to have_artifacts
-          end
-        end
-
-        it 'artifacts are no longer present on legacy path' do
-          expect(File.exist?(legacy_path(build_with_legacy_artifacts))).to eq(false)
-        end
-      end
-
-      context 'when there are artifacts in old and new directory' do
-        before do
-          store_artifacts_in_legacy_path(build2)
-
-          migration.up
-        end
-
-        it 'does not move old files' do
-          expect(File.exist?(legacy_path(build2))).to eq(true)
-        end
-      end
-    end
-
-    private
-
-    def store_artifacts_in_legacy_path(build)
-      FileUtils.mkdir_p(legacy_path(build))
-
-      FileUtils.copy(
-        Rails.root.join('spec/fixtures/ci_build_artifacts.zip'),
-        File.join(legacy_path(build), "ci_build_artifacts.zip"))
-
-      FileUtils.copy(
-        Rails.root.join('spec/fixtures/ci_build_artifacts_metadata.gz'),
-        File.join(legacy_path(build), "ci_build_artifacts_metadata.gz"))
-
-      build.update_columns(
-        artifacts_file: 'ci_build_artifacts.zip',
-        artifacts_metadata: 'ci_build_artifacts_metadata.gz')
-
-      build.reload
-    end
-
-    def legacy_path(build)
-      File.join(directory,
-        build.created_at.utc.strftime('%Y_%m'),
-        build.project.ci_id.to_s,
-        build.id.to_s)
-    end
-
-    def new_legacy_path(build)
-      File.join(directory,
-                build.created_at.utc.strftime('%Y_%m'),
-                build.project_id.to_s,
-                build.id.to_s)
-    end
-
-    def setup_builds(*builds)
-      builds.each do |build|
-        FileUtils.mkdir_p(new_legacy_path(build))
-
-        build.update_columns(
-          artifacts_file: 'ci_build_artifacts.zip',
-          artifacts_metadata: 'ci_build_artifacts_metadata.gz')
-
-        build.reload
-      end
-    end
-  end
-end
diff --git a/spec/migrations/migrate_pipeline_sidekiq_queues_spec.rb b/spec/migrations/migrate_pipeline_sidekiq_queues_spec.rb
deleted file mode 100644
index e38044ccceb..00000000000
--- a/spec/migrations/migrate_pipeline_sidekiq_queues_spec.rb
+++ /dev/null
@@ -1,49 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170822101017_migrate_pipeline_sidekiq_queues.rb')
-
-describe MigratePipelineSidekiqQueues, :sidekiq, :redis do
-  include Gitlab::Database::MigrationHelpers
-  include StubWorker
-
-  context 'when there are jobs in the queues' do
-    it 'correctly migrates queue when migrating up' do
-      Sidekiq::Testing.disable! do
-        stub_worker(queue: :pipeline).perform_async('Something', [1])
-        stub_worker(queue: :build).perform_async('Something', [1])
-
-        described_class.new.up
-
-        expect(sidekiq_queue_length('pipeline')).to eq 0
-        expect(sidekiq_queue_length('build')).to eq 0
-        expect(sidekiq_queue_length('pipeline_default')).to eq 2
-      end
-    end
-
-    it 'correctly migrates queue when migrating down' do
-      Sidekiq::Testing.disable! do
-        stub_worker(queue: :pipeline_default).perform_async('Class', [1])
-        stub_worker(queue: :pipeline_processing).perform_async('Class', [2])
-        stub_worker(queue: :pipeline_hooks).perform_async('Class', [3])
-        stub_worker(queue: :pipeline_cache).perform_async('Class', [4])
-
-        described_class.new.down
-
-        expect(sidekiq_queue_length('pipeline')).to eq 4
-        expect(sidekiq_queue_length('pipeline_default')).to eq 0
-        expect(sidekiq_queue_length('pipeline_processing')).to eq 0
-        expect(sidekiq_queue_length('pipeline_hooks')).to eq 0
-        expect(sidekiq_queue_length('pipeline_cache')).to eq 0
-      end
-    end
-  end
-
-  context 'when there are no jobs in the queues' do
-    it 'does not raise error when migrating up' do
-      expect { described_class.new.up }.not_to raise_error
-    end
-
-    it 'does not raise error when migrating down' do
-      expect { described_class.new.down }.not_to raise_error
-    end
-  end
-end
diff --git a/spec/migrations/migrate_pipeline_stages_spec.rb b/spec/migrations/migrate_pipeline_stages_spec.rb
deleted file mode 100644
index c47f2bb8ff9..00000000000
--- a/spec/migrations/migrate_pipeline_stages_spec.rb
+++ /dev/null
@@ -1,56 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170526185842_migrate_pipeline_stages.rb')
-
-describe MigratePipelineStages, :migration do
-  ##
-  # Create test data - pipeline and CI/CD jobs.
-  #
-
-  let(:jobs) { table(:ci_builds) }
-  let(:stages) { table(:ci_stages) }
-  let(:pipelines) { table(:ci_pipelines) }
-  let(:projects) { table(:projects) }
-
-  before do
-    # Create projects
-    #
-    projects.create!(id: 123, name: 'gitlab1', path: 'gitlab1')
-    projects.create!(id: 456, name: 'gitlab2', path: 'gitlab2')
-
-    # Create CI/CD pipelines
-    #
-    pipelines.create!(id: 1, project_id: 123, ref: 'master', sha: 'adf43c3a')
-    pipelines.create!(id: 2, project_id: 456, ref: 'feature', sha: '21a3deb')
-
-    # Create CI/CD jobs
-    #
-    jobs.create!(id: 1, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
-    jobs.create!(id: 2, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
-    jobs.create!(id: 3, commit_id: 1, project_id: 123, stage_idx: 1, stage: 'test')
-    jobs.create!(id: 4, commit_id: 1, project_id: 123, stage_idx: 1, stage: 'test')
-    jobs.create!(id: 5, commit_id: 1, project_id: 123, stage_idx: 3, stage: 'deploy')
-    jobs.create!(id: 6, commit_id: 2, project_id: 456, stage_idx: 3, stage: 'deploy')
-    jobs.create!(id: 7, commit_id: 2, project_id: 456, stage_idx: 2, stage: 'test:2')
-    jobs.create!(id: 8, commit_id: 2, project_id: 456, stage_idx: 1, stage: 'test:1')
-    jobs.create!(id: 9, commit_id: 2, project_id: 456, stage_idx: 1, stage: 'test:1')
-    jobs.create!(id: 10, commit_id: 2, project_id: 456, stage_idx: 2, stage: 'test:2')
-    jobs.create!(id: 11, commit_id: 3, project_id: 456, stage_idx: 3, stage: 'deploy')
-    jobs.create!(id: 12, commit_id: 2, project_id: 789, stage_idx: 3, stage: 'deploy')
-  end
-
-  it 'correctly migrates pipeline stages' do
-    expect(stages.count).to be_zero
-
-    migrate!
-
-    expect(stages.count).to eq 6
-    expect(stages.all.pluck(:name))
-      .to match_array %w[test build deploy test:1 test:2 deploy]
-    expect(stages.where(pipeline_id: 1).order(:id).pluck(:name))
-      .to eq %w[test build deploy]
-    expect(stages.where(pipeline_id: 2).order(:id).pluck(:name))
-      .to eq %w[test:1 test:2 deploy]
-    expect(stages.where(pipeline_id: 3).count).to be_zero
-    expect(stages.where(project_id: 789).count).to be_zero
-  end
-end
diff --git a/spec/migrations/migrate_process_commit_worker_jobs_spec.rb b/spec/migrations/migrate_process_commit_worker_jobs_spec.rb
deleted file mode 100644
index 6219a67c900..00000000000
--- a/spec/migrations/migrate_process_commit_worker_jobs_spec.rb
+++ /dev/null
@@ -1,197 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20161124141322_migrate_process_commit_worker_jobs.rb')
-
-describe MigrateProcessCommitWorkerJobs do
-  set(:project) { create(:project, :legacy_storage, :repository) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  set(:user) { create(:user) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let(:commit) do
-    Gitlab::Git::Commit.last(project.repository.raw)
-  end
-
-  describe 'Project' do
-    describe 'find_including_path' do
-      it 'returns Project instances' do
-        expect(described_class::Project.find_including_path(project.id))
-          .to be_an_instance_of(described_class::Project)
-      end
-
-      it 'selects the full path for every Project' do
-        migration_project = described_class::Project
-          .find_including_path(project.id)
-
-        expect(migration_project[:path_with_namespace])
-          .to eq(project.full_path)
-      end
-    end
-
-    describe '#repository' do
-      it 'returns a mock implemention of ::Repository' do
-        migration_project = described_class::Project
-          .find_including_path(project.id)
-
-        expect(migration_project.repository).to respond_to(:storage)
-        expect(migration_project.repository).to respond_to(:gitaly_repository)
-      end
-    end
-  end
-
-  describe '#up', :clean_gitlab_redis_shared_state do
-    let(:migration) { described_class.new }
-
-    def job_count
-      Sidekiq.redis { |r| r.llen('queue:process_commit') }
-    end
-
-    def pop_job
-      JSON.parse(Sidekiq.redis { |r| r.lpop('queue:process_commit') })
-    end
-
-    before do
-      Sidekiq.redis do |redis|
-        job = JSON.dump(args: [project.id, user.id, commit.id])
-        redis.lpush('queue:process_commit', job)
-      end
-    end
-
-    it 'skips jobs using a project that no longer exists' do
-      allow(described_class::Project).to receive(:find_including_path)
-        .with(project.id)
-        .and_return(nil)
-
-      migration.up
-
-      expect(job_count).to eq(0)
-    end
-
-    it 'skips jobs using commits that no longer exist' do
-      allow_any_instance_of(Gitlab::GitalyClient::CommitService)
-        .to receive(:find_commit)
-        .with(commit.id)
-        .and_return(nil)
-
-      migration.up
-
-      expect(job_count).to eq(0)
-    end
-
-    it 'inserts migrated jobs back into the queue' do
-      migration.up
-
-      expect(job_count).to eq(1)
-    end
-
-    it 'encodes data to UTF-8' do
-      allow(commit).to receive(:body)
-        .and_return('김치'.force_encoding('BINARY'))
-
-      migration.up
-
-      job = pop_job
-
-      # We don't care so much about what is being stored, instead we just want
-      # to make sure the encoding is right so that JSON encoding the data
-      # doesn't produce any errors.
-      expect(job['args'][2]['message'].encoding).to eq(Encoding::UTF_8)
-    end
-
-    context 'a migrated job' do
-      let(:job) do
-        migration.up
-        pop_job
-      end
-
-      let(:commit_hash) do
-        job['args'][2]
-      end
-
-      it 'includes the project ID' do
-        expect(job['args'][0]).to eq(project.id)
-      end
-
-      it 'includes the user ID' do
-        expect(job['args'][1]).to eq(user.id)
-      end
-
-      it 'includes the commit ID' do
-        expect(commit_hash['id']).to eq(commit.id)
-      end
-
-      it 'includes the commit message' do
-        expect(commit_hash['message']).to eq(commit.message)
-      end
-
-      it 'includes the parent IDs' do
-        expect(commit_hash['parent_ids']).to eq(commit.parent_ids)
-      end
-
-      it 'includes the author date' do
-        expect(commit_hash['authored_date']).to eq(commit.authored_date.to_s)
-      end
-
-      it 'includes the author name' do
-        expect(commit_hash['author_name']).to eq(commit.author_name)
-      end
-
-      it 'includes the author Email' do
-        expect(commit_hash['author_email']).to eq(commit.author_email)
-      end
-
-      it 'includes the commit date' do
-        expect(commit_hash['committed_date']).to eq(commit.committed_date.to_s)
-      end
-
-      it 'includes the committer name' do
-        expect(commit_hash['committer_name']).to eq(commit.committer_name)
-      end
-
-      it 'includes the committer Email' do
-        expect(commit_hash['committer_email']).to eq(commit.committer_email)
-      end
-    end
-  end
-
-  describe '#down', :clean_gitlab_redis_shared_state do
-    let(:migration) { described_class.new }
-
-    def job_count
-      Sidekiq.redis { |r| r.llen('queue:process_commit') }
-    end
-
-    before do
-      Sidekiq.redis do |redis|
-        job = JSON.dump(args: [project.id, user.id, commit.id])
-        redis.lpush('queue:process_commit', job)
-
-        migration.up
-      end
-    end
-
-    it 'pushes migrated jobs back into the queue' do
-      migration.down
-
-      expect(job_count).to eq(1)
-    end
-
-    context 'a migrated job' do
-      let(:job) do
-        migration.down
-
-        JSON.parse(Sidekiq.redis { |r| r.lpop('queue:process_commit') })
-      end
-
-      it 'includes the project ID' do
-        expect(job['args'][0]).to eq(project.id)
-      end
-
-      it 'includes the user ID' do
-        expect(job['args'][1]).to eq(user.id)
-      end
-
-      it 'includes the commit SHA' do
-        expect(job['args'][2]).to eq(commit.id)
-      end
-    end
-  end
-end
diff --git a/spec/migrations/migrate_stage_id_reference_in_background_spec.rb b/spec/migrations/migrate_stage_id_reference_in_background_spec.rb
deleted file mode 100644
index dd6f5325750..00000000000
--- a/spec/migrations/migrate_stage_id_reference_in_background_spec.rb
+++ /dev/null
@@ -1,55 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170628080858_migrate_stage_id_reference_in_background')
-
-describe MigrateStageIdReferenceInBackground, :migration, :sidekiq do
-  let(:jobs) { table(:ci_builds) }
-  let(:stages) { table(:ci_stages) }
-  let(:pipelines) { table(:ci_pipelines) }
-  let(:projects) { table(:projects) }
-
-  before do
-    stub_const("#{described_class.name}::BATCH_SIZE", 3)
-    stub_const("#{described_class.name}::RANGE_SIZE", 2)
-
-    projects.create!(id: 123, name: 'gitlab1', path: 'gitlab1')
-    projects.create!(id: 345, name: 'gitlab2', path: 'gitlab2')
-
-    pipelines.create!(id: 1, project_id: 123, ref: 'master', sha: 'adf43c3a')
-    pipelines.create!(id: 2, project_id: 345, ref: 'feature', sha: 'cdf43c3c')
-
-    jobs.create!(id: 1, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
-    jobs.create!(id: 2, commit_id: 1, project_id: 123, stage_idx: 2, stage: 'build')
-    jobs.create!(id: 3, commit_id: 1, project_id: 123, stage_idx: 1, stage: 'test')
-    jobs.create!(id: 4, commit_id: 1, project_id: 123, stage_idx: 3, stage: 'deploy')
-    jobs.create!(id: 5, commit_id: 2, project_id: 345, stage_idx: 1, stage: 'test')
-
-    stages.create(id: 101, pipeline_id: 1, project_id: 123, name: 'test')
-    stages.create(id: 102, pipeline_id: 1, project_id: 123, name: 'build')
-    stages.create(id: 103, pipeline_id: 1, project_id: 123, name: 'deploy')
-
-    jobs.create!(id: 6, commit_id: 2, project_id: 345, stage_id: 101, stage_idx: 1, stage: 'test')
-  end
-
-  it 'correctly schedules background migrations' do
-    Sidekiq::Testing.fake! do
-      Timecop.freeze do
-        migrate!
-
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(2.minutes, 1, 2)
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(2.minutes, 3, 3)
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(4.minutes, 4, 5)
-        expect(BackgroundMigrationWorker.jobs.size).to eq 3
-      end
-    end
-  end
-
-  it 'schedules background migrations' do
-    perform_enqueued_jobs do
-      expect(jobs.where(stage_id: nil).count).to eq 5
-
-      migrate!
-
-      expect(jobs.where(stage_id: nil).count).to eq 1
-    end
-  end
-end
diff --git a/spec/migrations/migrate_stages_statuses_spec.rb b/spec/migrations/migrate_stages_statuses_spec.rb
deleted file mode 100644
index 5483e24fce7..00000000000
--- a/spec/migrations/migrate_stages_statuses_spec.rb
+++ /dev/null
@@ -1,68 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170711145558_migrate_stages_statuses.rb')
-
-describe MigrateStagesStatuses, :sidekiq, :migration do
-  let(:jobs) { table(:ci_builds) }
-  let(:stages) { table(:ci_stages) }
-  let(:pipelines) { table(:ci_pipelines) }
-  let(:projects) { table(:projects) }
-
-  STATUSES = { created: 0, pending: 1, running: 2, success: 3,
-               failed: 4, canceled: 5, skipped: 6, manual: 7 }.freeze
-
-  before do
-    stub_const("#{described_class.name}::BATCH_SIZE", 2)
-    stub_const("#{described_class.name}::RANGE_SIZE", 1)
-
-    projects.create!(id: 1, name: 'gitlab1', path: 'gitlab1')
-    projects.create!(id: 2, name: 'gitlab2', path: 'gitlab2')
-
-    pipelines.create!(id: 1, project_id: 1, ref: 'master', sha: 'adf43c3a')
-    pipelines.create!(id: 2, project_id: 2, ref: 'feature', sha: '21a3deb')
-
-    create_job(project: 1, pipeline: 1, stage: 'test', status: 'success')
-    create_job(project: 1, pipeline: 1, stage: 'test', status: 'running')
-    create_job(project: 1, pipeline: 1, stage: 'build', status: 'success')
-    create_job(project: 1, pipeline: 1, stage: 'build', status: 'failed')
-    create_job(project: 2, pipeline: 2, stage: 'test', status: 'success')
-    create_job(project: 2, pipeline: 2, stage: 'test', status: 'success')
-    create_job(project: 2, pipeline: 2, stage: 'test', status: 'failed', retried: true)
-
-    stages.create!(id: 1, pipeline_id: 1, project_id: 1, name: 'test', status: nil)
-    stages.create!(id: 2, pipeline_id: 1, project_id: 1, name: 'build', status: nil)
-    stages.create!(id: 3, pipeline_id: 2, project_id: 2, name: 'test', status: nil)
-  end
-
-  it 'correctly migrates stages statuses' do
-    perform_enqueued_jobs do
-      expect(stages.where(status: nil).count).to eq 3
-
-      migrate!
-
-      expect(stages.where(status: nil)).to be_empty
-      expect(stages.all.order('id ASC').pluck(:status))
-        .to eq [STATUSES[:running], STATUSES[:failed], STATUSES[:success]]
-    end
-  end
-
-  it 'correctly schedules background migrations' do
-    Sidekiq::Testing.fake! do
-      Timecop.freeze do
-        migrate!
-
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(5.minutes, 1, 1)
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(5.minutes, 2, 2)
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(10.minutes, 3, 3)
-        expect(BackgroundMigrationWorker.jobs.size).to eq 3
-      end
-    end
-  end
-
-  def create_job(project:, pipeline:, stage:, status:, **opts)
-    stages = { test: 1, build: 2, deploy: 3 }
-
-    jobs.create!(project_id: project, commit_id: pipeline,
-                 stage_idx: stages[stage.to_sym], stage: stage,
-                 status: status, **opts)
-  end
-end
diff --git a/spec/migrations/migrate_user_activities_to_users_last_activity_on_spec.rb b/spec/migrations/migrate_user_activities_to_users_last_activity_on_spec.rb
deleted file mode 100644
index 88aef3b70b4..00000000000
--- a/spec/migrations/migrate_user_activities_to_users_last_activity_on_spec.rb
+++ /dev/null
@@ -1,49 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170324160416_migrate_user_activities_to_users_last_activity_on.rb')
-
-describe MigrateUserActivitiesToUsersLastActivityOn, :clean_gitlab_redis_shared_state, :migration do
-  let(:migration) { described_class.new }
-  let!(:user_active_1) { table(:users).create!(email: 'test1', username: 'test1') }
-  let!(:user_active_2) { table(:users).create!(email: 'test2', username: 'test2') }
-
-  def record_activity(user, time)
-    Gitlab::Redis::SharedState.with do |redis|
-      redis.zadd(described_class::USER_ACTIVITY_SET_KEY, time.to_i, user.username)
-    end
-  end
-
-  around do |example|
-    Timecop.freeze { example.run }
-  end
-
-  before do
-    record_activity(user_active_1, described_class::TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED + 2.months)
-    record_activity(user_active_2, described_class::TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED + 3.months)
-    mute_stdout { migration.up }
-  end
-
-  describe '#up' do
-    it 'fills last_activity_on from the legacy Redis Sorted Set' do
-      expect(user_active_1.reload.last_activity_on).to eq((described_class::TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED + 2.months).to_date)
-      expect(user_active_2.reload.last_activity_on).to eq((described_class::TIME_WHEN_ACTIVITY_SET_WAS_INTRODUCED + 3.months).to_date)
-    end
-  end
-
-  describe '#down' do
-    it 'sets last_activity_on to NULL for all users' do
-      mute_stdout { migration.down }
-
-      expect(user_active_1.reload.last_activity_on).to be_nil
-      expect(user_active_2.reload.last_activity_on).to be_nil
-    end
-  end
-
-  def mute_stdout
-    orig_stdout = $stdout
-    $stdout = StringIO.new
-    yield
-    $stdout = orig_stdout
-  end
-end
diff --git a/spec/migrations/migrate_user_authentication_token_to_personal_access_token_spec.rb b/spec/migrations/migrate_user_authentication_token_to_personal_access_token_spec.rb
deleted file mode 100644
index b4834705011..00000000000
--- a/spec/migrations/migrate_user_authentication_token_to_personal_access_token_spec.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20171012125712_migrate_user_authentication_token_to_personal_access_token.rb')
-
-describe MigrateUserAuthenticationTokenToPersonalAccessToken, :migration do
-  let(:users) { table(:users) }
-  let(:personal_access_tokens) { table(:personal_access_tokens) }
-
-  let!(:user) { users.create!(id: 1, email: 'user@example.com', authentication_token: 'user-token', admin: false) }
-  let!(:admin) { users.create!(id: 2, email: 'admin@example.com', authentication_token: 'admin-token', admin: true) }
-
-  it 'migrates private tokens to Personal Access Tokens' do
-    migrate!
-
-    expect(personal_access_tokens.count).to eq(2)
-
-    user_token = personal_access_tokens.find_by(user_id: user.id)
-    admin_token = personal_access_tokens.find_by(user_id: admin.id)
-
-    expect(user_token.token).to eq('user-token')
-    expect(admin_token.token).to eq('admin-token')
-
-    expect(user_token.scopes).to eq(%w[api].to_yaml)
-    expect(admin_token.scopes).to eq(%w[api sudo].to_yaml)
-  end
-end
diff --git a/spec/migrations/migrate_user_project_view_spec.rb b/spec/migrations/migrate_user_project_view_spec.rb
deleted file mode 100644
index a0179ab3ceb..00000000000
--- a/spec/migrations/migrate_user_project_view_spec.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170406142253_migrate_user_project_view.rb')
-
-describe MigrateUserProjectView, :migration do
-  let(:migration) { described_class.new }
-  let!(:user) { table(:users).create!(project_view: User.project_views['readme']) }
-
-  describe '#up' do
-    it 'updates project view setting with new value' do
-      migration.up
-
-      expect(user.reload.project_view).to eq(User.project_views['files'])
-    end
-  end
-end
diff --git a/spec/migrations/move_personal_snippets_files_spec.rb b/spec/migrations/move_personal_snippets_files_spec.rb
deleted file mode 100644
index d94ae1e52f5..00000000000
--- a/spec/migrations/move_personal_snippets_files_spec.rb
+++ /dev/null
@@ -1,197 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170612071012_move_personal_snippets_files.rb')
-
-describe MovePersonalSnippetsFiles, :migration do
-  let(:migration) { described_class.new }
-  let(:test_dir) { File.join(Rails.root, "tmp", "tests", "move_snippet_files_test") }
-  let(:uploads_dir) { File.join(test_dir, 'uploads') }
-  let(:new_uploads_dir) { File.join(uploads_dir, '-', 'system') }
-
-  let(:notes) { table(:notes) }
-  let(:snippets) { table(:snippets) }
-  let(:uploads) { table(:uploads) }
-
-  let(:user) { table(:users).create!(email: 'user@example.com', projects_limit: 10) }
-  let(:project) { table(:projects).create!(name: 'gitlab', namespace_id: 1) }
-
-  before do
-    allow(CarrierWave).to receive(:root).and_return(test_dir)
-    allow(migration).to receive(:base_directory).and_return(test_dir)
-    FileUtils.remove_dir(test_dir) if File.directory?(test_dir)
-    allow(migration).to receive(:say)
-  end
-
-  describe "#up" do
-    let(:snippet) do
-      snippet = snippets.create!(author_id: user.id)
-      create_upload('picture.jpg', snippet)
-      snippet.update(description: markdown_linking_file('picture.jpg', snippet))
-      snippet
-    end
-
-    let(:snippet_with_missing_file) do
-      snippet = snippets.create!(author_id: user.id, project_id: project.id)
-      create_upload('picture.jpg', snippet, create_file: false)
-      snippet.update(description: markdown_linking_file('picture.jpg', snippet))
-      snippet
-    end
-
-    it 'moves the files' do
-      source_path = File.join(uploads_dir, model_file_path('picture.jpg', snippet))
-      destination_path = File.join(new_uploads_dir, model_file_path('picture.jpg', snippet))
-
-      migration.up
-
-      expect(File.exist?(source_path)).to be_falsy
-      expect(File.exist?(destination_path)).to be_truthy
-    end
-
-    describe 'updating the markdown' do
-      it 'includes the new path when the file exists' do
-        secret = "secret#{snippet.id}"
-        file_location = "/uploads/-/system/personal_snippet/#{snippet.id}/#{secret}/picture.jpg"
-
-        migration.up
-
-        expect(snippet.reload.description).to include(file_location)
-      end
-
-      it 'does not update the markdown when the file is missing' do
-        secret = "secret#{snippet_with_missing_file.id}"
-        file_location = "/uploads/personal_snippet/#{snippet_with_missing_file.id}/#{secret}/picture.jpg"
-
-        migration.up
-
-        expect(snippet_with_missing_file.reload.description).to include(file_location)
-      end
-
-      it 'updates the note markdown' do
-        secret = "secret#{snippet.id}"
-        file_location = "/uploads/-/system/personal_snippet/#{snippet.id}/#{secret}/picture.jpg"
-        markdown = markdown_linking_file('picture.jpg', snippet)
-        note = notes.create!(noteable_id: snippet.id,
-                             noteable_type: Snippet,
-                             note: "with #{markdown}",
-                             author_id: user.id)
-
-        migration.up
-
-        expect(note.reload.note).to include(file_location)
-      end
-    end
-  end
-
-  describe "#down" do
-    let(:snippet) do
-      snippet = snippets.create!(author_id: user.id)
-      create_upload('picture.jpg', snippet, in_new_path: true)
-      snippet.update(description: markdown_linking_file('picture.jpg', snippet, in_new_path: true))
-      snippet
-    end
-
-    let(:snippet_with_missing_file) do
-      snippet = snippets.create!(author_id: user.id)
-      create_upload('picture.jpg', snippet, create_file: false, in_new_path: true)
-      snippet.update(description: markdown_linking_file('picture.jpg', snippet, in_new_path: true))
-      snippet
-    end
-
-    it 'moves the files' do
-      source_path = File.join(new_uploads_dir, model_file_path('picture.jpg', snippet))
-      destination_path = File.join(uploads_dir, model_file_path('picture.jpg', snippet))
-
-      migration.down
-
-      expect(File.exist?(source_path)).to be_falsey
-      expect(File.exist?(destination_path)).to be_truthy
-    end
-
-    describe 'updating the markdown' do
-      it 'includes the new path when the file exists' do
-        secret = "secret#{snippet.id}"
-        file_location = "/uploads/personal_snippet/#{snippet.id}/#{secret}/picture.jpg"
-
-        migration.down
-
-        expect(snippet.reload.description).to include(file_location)
-      end
-
-      it 'keeps the markdown as is when the file is missing' do
-        secret = "secret#{snippet_with_missing_file.id}"
-        file_location = "/uploads/-/system/personal_snippet/#{snippet_with_missing_file.id}/#{secret}/picture.jpg"
-
-        migration.down
-
-        expect(snippet_with_missing_file.reload.description).to include(file_location)
-      end
-
-      it 'updates the note markdown' do
-        markdown = markdown_linking_file('picture.jpg', snippet, in_new_path: true)
-        secret = "secret#{snippet.id}"
-        file_location = "/uploads/personal_snippet/#{snippet.id}/#{secret}/picture.jpg"
-        note = notes.create!(noteable_id: snippet.id,
-                             noteable_type: Snippet,
-                             note: "with #{markdown}",
-                             author_id: user.id)
-
-        migration.down
-
-        expect(note.reload.note).to include(file_location)
-      end
-    end
-  end
-
-  describe '#update_markdown' do
-    it 'escapes sql in the snippet description' do
-      migration.instance_variable_set('@source_relative_location', '/uploads/personal_snippet')
-      migration.instance_variable_set('@destination_relative_location', '/uploads/system/personal_snippet')
-
-      secret = '123456789'
-      filename = 'hello.jpg'
-      snippet = snippets.create!(author_id: user.id)
-
-      path_before = "/uploads/personal_snippet/#{snippet.id}/#{secret}/#{filename}"
-      path_after = "/uploads/system/personal_snippet/#{snippet.id}/#{secret}/#{filename}"
-      description_before = "Hello world; ![image](#{path_before})'; select * from users;"
-      description_after = "Hello world; ![image](#{path_after})'; select * from users;"
-
-      migration.update_markdown(snippet.id, secret, filename, description_before)
-
-      expect(snippet.reload.description).to eq(description_after)
-    end
-  end
-
-  def create_upload(filename, snippet, create_file: true, in_new_path: false)
-    secret = "secret#{snippet.id}"
-    absolute_path = if in_new_path
-                      File.join(new_uploads_dir, model_file_path(filename, snippet))
-                    else
-                      File.join(uploads_dir, model_file_path(filename, snippet))
-                    end
-
-    if create_file
-      FileUtils.mkdir_p(File.dirname(absolute_path))
-      FileUtils.touch(absolute_path)
-    end
-
-    uploads.create!(model_id: snippet.id,
-                    model_type: snippet.class,
-                    path: "#{secret}/#{filename}",
-                    uploader: PersonalFileUploader,
-                    size: 100.kilobytes)
-  end
-
-  def markdown_linking_file(filename, snippet, in_new_path: false)
-    markdown =  "![#{filename.split('.')[0]}]"
-    markdown += '(/uploads'
-    markdown += '/-/system' if in_new_path
-    markdown += "/#{model_file_path(filename, snippet)})"
-    markdown
-  end
-
-  def model_file_path(filename, snippet)
-    secret = "secret#{snippet.id}"
-
-    File.join('personal_snippet', snippet.id.to_s, secret, filename)
-  end
-end
diff --git a/spec/migrations/move_system_upload_folder_spec.rb b/spec/migrations/move_system_upload_folder_spec.rb
deleted file mode 100644
index d3180477db3..00000000000
--- a/spec/migrations/move_system_upload_folder_spec.rb
+++ /dev/null
@@ -1,80 +0,0 @@
-require 'spec_helper'
-require Rails.root.join("db", "migrate", "20170717074009_move_system_upload_folder.rb")
-
-describe MoveSystemUploadFolder do
-  let(:migration) { described_class.new }
-  let(:test_base) { File.join(Rails.root, 'tmp', 'tests', 'move-system-upload-folder') }
-
-  before do
-    allow(migration).to receive(:base_directory).and_return(test_base)
-    FileUtils.rm_rf(test_base)
-    FileUtils.mkdir_p(test_base)
-    allow(migration).to receive(:say)
-  end
-
-  describe '#up' do
-    let(:test_folder) { File.join(test_base, 'system') }
-    let(:test_file) { File.join(test_folder, 'file') }
-
-    before do
-      FileUtils.mkdir_p(test_folder)
-      FileUtils.touch(test_file)
-    end
-
-    it 'moves the related folder' do
-      migration.up
-
-      expect(File.exist?(File.join(test_base, '-', 'system', 'file'))).to be_truthy
-    end
-
-    it 'creates a symlink linking making the new folder available on the old path' do
-      migration.up
-
-      expect(File.symlink?(File.join(test_base, 'system'))).to be_truthy
-      expect(File.exist?(File.join(test_base, 'system', 'file'))).to be_truthy
-    end
-
-    it 'does not move if the target directory already exists' do
-      FileUtils.mkdir_p(File.join(test_base, '-', 'system'))
-
-      expect(FileUtils).not_to receive(:mv)
-      expect(migration).to receive(:say).with(/already exists. No need to redo the move/)
-
-      migration.up
-    end
-  end
-
-  describe '#down' do
-    let(:test_folder) { File.join(test_base, '-', 'system') }
-    let(:test_file) { File.join(test_folder, 'file') }
-
-    before do
-      FileUtils.mkdir_p(test_folder)
-      FileUtils.touch(test_file)
-    end
-
-    it 'moves the system folder back to the old location' do
-      migration.down
-
-      expect(File.exist?(File.join(test_base, 'system', 'file'))).to be_truthy
-    end
-
-    it 'removes the symlink if it existed' do
-      FileUtils.ln_s(test_folder, File.join(test_base, 'system'))
-
-      migration.down
-
-      expect(File.directory?(File.join(test_base, 'system'))).to be_truthy
-      expect(File.symlink?(File.join(test_base, 'system'))).to be_falsey
-    end
-
-    it 'does not move if the old directory already exists' do
-      FileUtils.mkdir_p(File.join(test_base, 'system'))
-
-      expect(FileUtils).not_to receive(:mv)
-      expect(migration).to receive(:say).with(/already exists and is not a symlink, no need to revert/)
-
-      migration.down
-    end
-  end
-end
diff --git a/spec/migrations/move_uploads_to_system_dir_spec.rb b/spec/migrations/move_uploads_to_system_dir_spec.rb
deleted file mode 100644
index ca11a2004c5..00000000000
--- a/spec/migrations/move_uploads_to_system_dir_spec.rb
+++ /dev/null
@@ -1,68 +0,0 @@
-require "spec_helper"
-require Rails.root.join("db", "migrate", "20170316163845_move_uploads_to_system_dir.rb")
-
-describe MoveUploadsToSystemDir do
-  let(:migration) { described_class.new }
-  let(:test_dir) { File.join(Rails.root, "tmp", "move_uploads_test") }
-  let(:uploads_dir) { File.join(test_dir, "public", "uploads") }
-  let(:new_uploads_dir) { File.join(uploads_dir, "-", "system") }
-
-  before do
-    FileUtils.remove_dir(test_dir) if File.directory?(test_dir)
-    FileUtils.mkdir_p(uploads_dir)
-    allow(migration).to receive(:base_directory).and_return(test_dir)
-    allow(migration).to receive(:say)
-  end
-
-  describe "#up" do
-    before do
-      FileUtils.mkdir_p(File.join(uploads_dir, 'user'))
-      FileUtils.touch(File.join(uploads_dir, 'user', 'dummy.file'))
-    end
-
-    it 'moves the directory to the new path' do
-      expected_path = File.join(new_uploads_dir, 'user', 'dummy.file')
-
-      migration.up
-
-      expect(File.exist?(expected_path)).to be(true)
-    end
-
-    it 'creates a symlink in the old location' do
-      symlink_path = File.join(uploads_dir, 'user')
-      expected_path = File.join(symlink_path, 'dummy.file')
-
-      migration.up
-
-      expect(File.exist?(expected_path)).to be(true)
-      expect(File.symlink?(symlink_path)).to be(true)
-    end
-  end
-
-  describe "#down" do
-    before do
-      FileUtils.mkdir_p(File.join(new_uploads_dir, 'user'))
-      FileUtils.touch(File.join(new_uploads_dir, 'user', 'dummy.file'))
-    end
-
-    it 'moves the directory to the old path' do
-      expected_path = File.join(uploads_dir, 'user', 'dummy.file')
-
-      migration.down
-
-      expect(File.exist?(expected_path)).to be(true)
-    end
-
-    it 'removes the symlink if it existed' do
-      FileUtils.ln_s(File.join(new_uploads_dir, 'user'), File.join(uploads_dir, 'user'))
-
-      directory = File.join(uploads_dir, 'user')
-      expected_path = File.join(directory, 'dummy.file')
-
-      migration.down
-
-      expect(File.exist?(expected_path)).to be(true)
-      expect(File.symlink?(directory)).to be(false)
-    end
-  end
-end
diff --git a/spec/migrations/normalize_ldap_extern_uids_spec.rb b/spec/migrations/normalize_ldap_extern_uids_spec.rb
deleted file mode 100644
index a23a5d54e0a..00000000000
--- a/spec/migrations/normalize_ldap_extern_uids_spec.rb
+++ /dev/null
@@ -1,56 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170921101004_normalize_ldap_extern_uids')
-
-describe NormalizeLdapExternUids, :migration, :sidekiq do
-  let!(:identities) { table(:identities) }
-
-  around do |example|
-    Timecop.freeze { example.run }
-  end
-
-  before do
-    stub_const("Gitlab::Database::MigrationHelpers::BACKGROUND_MIGRATION_BATCH_SIZE", 2)
-    stub_const("Gitlab::Database::MigrationHelpers::BACKGROUND_MIGRATION_JOB_BUFFER_SIZE", 2)
-
-    # LDAP identities
-    (1..4).each do |i|
-      identities.create!(id: i, provider: 'ldapmain', extern_uid: " uid = foo #{i}, ou = People, dc = example, dc = com ", user_id: i)
-    end
-
-    # Non-LDAP identity
-    identities.create!(id: 5, provider: 'foo', extern_uid: " uid = foo 5, ou = People, dc = example, dc = com ", user_id: 5)
-  end
-
-  it 'correctly schedules background migrations' do
-    Sidekiq::Testing.fake! do
-      Timecop.freeze do
-        migrate!
-
-        expect(BackgroundMigrationWorker.jobs[0]['args']).to eq([described_class::MIGRATION, [1, 2]])
-        expect(BackgroundMigrationWorker.jobs[0]['at']).to eq(2.minutes.from_now.to_f)
-        expect(BackgroundMigrationWorker.jobs[1]['args']).to eq([described_class::MIGRATION, [3, 4]])
-        expect(BackgroundMigrationWorker.jobs[1]['at']).to eq(4.minutes.from_now.to_f)
-        expect(BackgroundMigrationWorker.jobs[2]['args']).to eq([described_class::MIGRATION, [5, 5]])
-        expect(BackgroundMigrationWorker.jobs[2]['at']).to eq(6.minutes.from_now.to_f)
-        expect(BackgroundMigrationWorker.jobs.size).to eq 3
-      end
-    end
-  end
-
-  it 'migrates the LDAP identities' do
-    perform_enqueued_jobs do
-      migrate!
-      identities.where(id: 1..4).each do |identity|
-        expect(identity.extern_uid).to eq("uid=foo #{identity.id},ou=people,dc=example,dc=com")
-      end
-    end
-  end
-
-  it 'does not modify non-LDAP identities' do
-    perform_enqueued_jobs do
-      migrate!
-      identity = identities.last
-      expect(identity.extern_uid).to eq(" uid = foo 5, ou = People, dc = example, dc = com ")
-    end
-  end
-end
diff --git a/spec/migrations/populate_can_push_from_deploy_keys_projects_spec.rb b/spec/migrations/populate_can_push_from_deploy_keys_projects_spec.rb
deleted file mode 100644
index 0ff98933d5c..00000000000
--- a/spec/migrations/populate_can_push_from_deploy_keys_projects_spec.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20171215113714_populate_can_push_from_deploy_keys_projects.rb')
-
-describe PopulateCanPushFromDeployKeysProjects, :migration do
-  let(:migration) { described_class.new }
-  let(:deploy_keys) { table(:keys) }
-  let(:deploy_keys_projects) { table(:deploy_keys_projects) }
-  let(:projects) { table(:projects) }
-
-  before do
-    deploy_keys.inheritance_column = nil
-
-    projects.create!(id: 1, name: 'gitlab1', path: 'gitlab1')
-    (1..10).each do |index|
-      deploy_keys.create!(id: index, title: 'dummy', type: 'DeployKey', key: Spec::Support::Helpers::KeyGeneratorHelper.new(1024).generate + ' dummy@gitlab.com')
-      deploy_keys_projects.create!(id: index, deploy_key_id: index, project_id: 1)
-    end
-  end
-
-  describe '#up' do
-    it 'migrates can_push from deploy_keys to deploy_keys_projects' do
-      deploy_keys.limit(5).update_all(can_push: true)
-
-      expected = deploy_keys.order(:id).pluck(:id, :can_push)
-
-      migration.up
-
-      expect(deploy_keys_projects.order(:id).pluck(:deploy_key_id, :can_push)).to eq expected
-    end
-  end
-
-  describe '#down' do
-    it 'migrates can_push from deploy_keys_projects to deploy_keys' do
-      deploy_keys_projects.limit(5).update_all(can_push: true)
-
-      expected = deploy_keys_projects.order(:id).pluck(:deploy_key_id, :can_push)
-
-      migration.down
-
-      expect(deploy_keys.order(:id).pluck(:id, :can_push)).to eq expected
-    end
-  end
-end
diff --git a/spec/migrations/remove_assignee_id_from_issue_spec.rb b/spec/migrations/remove_assignee_id_from_issue_spec.rb
deleted file mode 100644
index 2c6f992d3ae..00000000000
--- a/spec/migrations/remove_assignee_id_from_issue_spec.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170523073948_remove_assignee_id_from_issue.rb')
-
-describe RemoveAssigneeIdFromIssue, :migration do
-  let(:issues) { table(:issues) }
-  let(:issue_assignees) { table(:issue_assignees) }
-  let(:users) { table(:users) }
-
-  let!(:user_1) { users.create(email: 'email1@example.com') }
-  let!(:user_2) { users.create(email: 'email2@example.com') }
-  let!(:user_3) { users.create(email: 'email3@example.com') }
-
-  def create_issue(assignees:)
-    issues.create.tap do |issue|
-      assignees.each do |assignee|
-        issue_assignees.create(issue_id: issue.id, user_id: assignee.id)
-      end
-    end
-  end
-
-  let!(:issue_single_assignee) { create_issue(assignees: [user_1]) }
-  let!(:issue_no_assignee) { create_issue(assignees: []) }
-  let!(:issue_multiple_assignees) { create_issue(assignees: [user_2, user_3]) }
-
-  describe '#down' do
-    it 'sets the assignee_id to a random matching assignee from the assignees table' do
-      migrate!
-      disable_migrations_output { described_class.new.down }
-
-      expect(issue_single_assignee.reload.assignee_id).to eq(user_1.id)
-      expect(issue_no_assignee.reload.assignee_id).to be_nil
-      expect(issue_multiple_assignees.reload.assignee_id).to eq(user_2.id).or(user_3.id)
-
-      disable_migrations_output { described_class.new.up }
-    end
-  end
-end
diff --git a/spec/migrations/remove_dot_git_from_usernames_spec.rb b/spec/migrations/remove_dot_git_from_usernames_spec.rb
deleted file mode 100644
index f11880a83e9..00000000000
--- a/spec/migrations/remove_dot_git_from_usernames_spec.rb
+++ /dev/null
@@ -1,58 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20161226122833_remove_dot_git_from_usernames.rb')
-
-describe RemoveDotGitFromUsernames do
-  let(:user) { create(:user) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let(:migration) { described_class.new }
-
-  describe '#up' do
-    before do
-      update_namespace(user, 'test.git')
-    end
-
-    it 'renames user with .git in username' do
-      migration.up
-
-      expect(user.reload.username).to eq('test_git')
-      expect(user.namespace.reload.path).to eq('test_git')
-      expect(user.namespace.route.path).to eq('test_git')
-    end
-  end
-
-  context 'when new path exists already' do
-    describe '#up' do
-      let(:user2) { create(:user) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-
-      before do
-        update_namespace(user, 'test.git')
-        update_namespace(user2, 'test_git')
-
-        default_hash = Gitlab.config.repositories.storages.default.to_h
-        default_hash['path'] = 'tmp/tests/custom_repositories'
-        storages = { 'default' => Gitlab::GitalyClient::StorageSettings.new(default_hash) }
-
-        allow(Gitlab.config.repositories).to receive(:storages).and_return(storages)
-        allow(migration).to receive(:route_exists?).with('test_git').and_return(true)
-        allow(migration).to receive(:route_exists?).with('test_git1').and_return(false)
-      end
-
-      it 'renames user with .git in username' do
-        migration.up
-
-        expect(user.reload.username).to eq('test_git1')
-        expect(user.namespace.reload.path).to eq('test_git1')
-        expect(user.namespace.route.path).to eq('test_git1')
-      end
-    end
-  end
-
-  def update_namespace(user, path)
-    namespace = user.namespace
-    namespace.path = path
-    namespace.save!(validate: false)
-
-    user.update_column(:username, path)
-  end
-end
diff --git a/spec/migrations/remove_duplicate_mr_events_spec.rb b/spec/migrations/remove_duplicate_mr_events_spec.rb
deleted file mode 100644
index 2509ac6afd6..00000000000
--- a/spec/migrations/remove_duplicate_mr_events_spec.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170815060945_remove_duplicate_mr_events.rb')
-
-describe RemoveDuplicateMrEvents, :delete do
-  let(:migration) { described_class.new }
-
-  describe '#up' do
-    let(:user) { create(:user) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-    let(:merge_requests) { create_list(:merge_request, 2) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-    let(:issue) { create(:issue) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-    let!(:events) do
-      [
-        create(:event, :created, author: user, target: merge_requests.first), # rubocop:disable RSpec/FactoriesInMigrationSpecs
-        create(:event, :created, author: user, target: merge_requests.first), # rubocop:disable RSpec/FactoriesInMigrationSpecs
-        create(:event, :updated, author: user, target: merge_requests.first), # rubocop:disable RSpec/FactoriesInMigrationSpecs
-        create(:event, :created, author: user, target: merge_requests.second), # rubocop:disable RSpec/FactoriesInMigrationSpecs
-        create(:event, :created, author: user, target: issue), # rubocop:disable RSpec/FactoriesInMigrationSpecs
-        create(:event, :created, author: user, target: issue) # rubocop:disable RSpec/FactoriesInMigrationSpecs
-      ]
-    end
-
-    it 'removes duplicated merge request create records' do
-      expect { migration.up }.to change { Event.count }.from(6).to(5)
-    end
-  end
-end
diff --git a/spec/migrations/remove_empty_fork_networks_spec.rb b/spec/migrations/remove_empty_fork_networks_spec.rb
deleted file mode 100644
index f6d030ab25c..00000000000
--- a/spec/migrations/remove_empty_fork_networks_spec.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20171114104051_remove_empty_fork_networks.rb')
-
-describe RemoveEmptyForkNetworks, :migration do
-  let!(:fork_networks) { table(:fork_networks) }
-  let!(:projects) { table(:projects) }
-  let!(:fork_network_members) { table(:fork_network_members) }
-
-  let(:deleted_project) { projects.create! }
-  let!(:empty_network) { fork_networks.create!(id: 1, root_project_id: deleted_project.id) }
-  let!(:other_network) { fork_networks.create!(id: 2, root_project_id: projects.create.id) }
-
-  before do
-    fork_network_members.create(fork_network_id: empty_network.id,
-                                project_id: empty_network.root_project_id)
-    fork_network_members.create(fork_network_id: other_network.id,
-                                project_id: other_network.root_project_id)
-
-    deleted_project.destroy!
-  end
-
-  after do
-    Upload.reset_column_information
-  end
-
-  it 'deletes only the fork network without members' do
-    expect(fork_networks.count).to eq(2)
-
-    migrate!
-
-    expect(fork_networks.find_by(id: empty_network.id)).to be_nil
-    expect(fork_networks.find_by(id: other_network.id)).not_to be_nil
-    expect(fork_networks.count).to eq(1)
-  end
-end
diff --git a/spec/migrations/rename_duplicated_variable_key_spec.rb b/spec/migrations/rename_duplicated_variable_key_spec.rb
deleted file mode 100644
index 11096564dfa..00000000000
--- a/spec/migrations/rename_duplicated_variable_key_spec.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20170622135451_rename_duplicated_variable_key.rb')
-
-describe RenameDuplicatedVariableKey, :migration do
-  let(:variables) { table(:ci_variables) }
-  let(:projects) { table(:projects) }
-
-  before do
-    projects.create!(id: 1)
-    variables.create!(id: 1, key: 'key1', project_id: 1)
-    variables.create!(id: 2, key: 'key2', project_id: 1)
-    variables.create!(id: 3, key: 'keyX', project_id: 1)
-    variables.create!(id: 4, key: 'keyX', project_id: 1)
-    variables.create!(id: 5, key: 'keyY', project_id: 1)
-    variables.create!(id: 6, key: 'keyX', project_id: 1)
-    variables.create!(id: 7, key: 'key7', project_id: 1)
-    variables.create!(id: 8, key: 'keyY', project_id: 1)
-  end
-
-  it 'correctly remove duplicated records with smaller id' do
-    migrate!
-
-    expect(variables.pluck(:id, :key)).to contain_exactly(
-      [1, 'key1'],
-      [2, 'key2'],
-      [3, 'keyX_3'],
-      [4, 'keyX_4'],
-      [5, 'keyY_5'],
-      [6, 'keyX'],
-      [7, 'key7'],
-      [8, 'keyY']
-    )
-  end
-end
diff --git a/spec/migrations/rename_more_reserved_project_names_spec.rb b/spec/migrations/rename_more_reserved_project_names_spec.rb
deleted file mode 100644
index 80ae209e9d1..00000000000
--- a/spec/migrations/rename_more_reserved_project_names_spec.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170313133418_rename_more_reserved_project_names.rb')
-
-# This migration uses multiple threads, and thus different transactions. This
-# means data created in this spec may not be visible to some threads. To work
-# around this we use the DELETE cleaning strategy.
-describe RenameMoreReservedProjectNames, :delete do
-  let(:migration) { described_class.new }
-  let!(:project) { create(:project) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-
-  before do
-    project.path = 'artifacts'
-    project.save!(validate: false)
-  end
-
-  describe '#up' do
-    context 'when project repository exists' do
-      before do
-        project.create_repository
-      end
-
-      context 'when no exception is raised' do
-        it 'renames project with reserved names' do
-          migration.up
-
-          expect(project.reload.path).to eq('artifacts0')
-        end
-      end
-
-      context 'when exception is raised during rename' do
-        before do
-          service = instance_double('service')
-
-          allow(service)
-            .to receive(:execute)
-            .and_raise(Projects::AfterRenameService::RenameFailedError)
-
-          expect(migration)
-            .to receive(:after_rename_service)
-            .and_return(service)
-        end
-
-        it 'captures exception from project rename' do
-          expect { migration.up }.not_to raise_error
-        end
-      end
-    end
-
-    context 'when project repository does not exist' do
-      it 'does not raise error' do
-        expect { migration.up }.not_to raise_error
-      end
-    end
-  end
-end
diff --git a/spec/migrations/rename_reserved_project_names_spec.rb b/spec/migrations/rename_reserved_project_names_spec.rb
deleted file mode 100644
index 93e5c032287..00000000000
--- a/spec/migrations/rename_reserved_project_names_spec.rb
+++ /dev/null
@@ -1,61 +0,0 @@
-# encoding: utf-8
-
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20161221153951_rename_reserved_project_names.rb')
-
-# This migration is using factories, which set fields that don't actually
-# exist in the DB schema previous to 20161221153951. Thus we just use the
-# latest schema when testing this migration.
-# This is ok-ish because:
-#   1. This migration is a data migration
-#   2. It only relies on very stable DB fields: routes.id, routes.path, namespaces.id, projects.namespace_id
-# Ideally, the test should not use factories and rely on the `table` helper instead.
-describe RenameReservedProjectNames, :migration, schema: :latest do
-  let(:migration) { described_class.new }
-  let!(:project) { create(:project) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-
-  before do
-    project.path = 'projects'
-    project.save!(validate: false)
-  end
-
-  describe '#up' do
-    context 'when project repository exists' do
-      before do
-        project.create_repository
-      end
-
-      context 'when no exception is raised' do
-        it 'renames project with reserved names' do
-          migration.up
-
-          expect(project.reload.path).to eq('projects0')
-        end
-      end
-
-      context 'when exception is raised during rename' do
-        before do
-          service = instance_double('service')
-
-          allow(service)
-            .to receive(:execute)
-            .and_raise(Projects::AfterRenameService::RenameFailedError)
-
-          expect(migration)
-            .to receive(:after_rename_service)
-            .and_return(service)
-        end
-
-        it 'captures exception from project rename' do
-          expect { migration.up }.not_to raise_error
-        end
-      end
-    end
-
-    context 'when project repository does not exist' do
-      it 'does not raise error' do
-        expect { migration.up }.not_to raise_error
-      end
-    end
-  end
-end
diff --git a/spec/migrations/rename_users_with_renamed_namespace_spec.rb b/spec/migrations/rename_users_with_renamed_namespace_spec.rb
deleted file mode 100644
index b8a4dc2b2c0..00000000000
--- a/spec/migrations/rename_users_with_renamed_namespace_spec.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170518200835_rename_users_with_renamed_namespace.rb')
-
-describe RenameUsersWithRenamedNamespace, :delete do
-  it 'renames a user that had their namespace renamed to the namespace path' do
-    other_user = create(:user, username: 'kodingu') # rubocop:disable RSpec/FactoriesInMigrationSpecs
-    other_user1 = create(:user, username: 'api0') # rubocop:disable RSpec/FactoriesInMigrationSpecs
-
-    user = create(:user, username: "Users0") # rubocop:disable RSpec/FactoriesInMigrationSpecs
-    user.update_column(:username, 'Users')
-    user1 = create(:user, username: "import0") # rubocop:disable RSpec/FactoriesInMigrationSpecs
-    user1.update_column(:username, 'import')
-
-    described_class.new.up
-
-    expect(user.reload.username).to eq('Users0')
-    expect(user1.reload.username).to eq('import0')
-
-    expect(other_user.reload.username).to eq('kodingu')
-    expect(other_user1.reload.username).to eq('api0')
-  end
-end
diff --git a/spec/migrations/schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb b/spec/migrations/schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb
deleted file mode 100644
index 76fe16581ac..00000000000
--- a/spec/migrations/schedule_merge_request_latest_merge_request_diff_id_migrations_spec.rb
+++ /dev/null
@@ -1,64 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20171026082505_schedule_merge_request_latest_merge_request_diff_id_migrations')
-
-describe ScheduleMergeRequestLatestMergeRequestDiffIdMigrations, :migration, :sidekiq do
-  let(:projects_table) { table(:projects) }
-  let(:merge_requests_table) { table(:merge_requests) }
-  let(:merge_request_diffs_table) { table(:merge_request_diffs) }
-
-  let(:project) { projects_table.create!(name: 'gitlab', path: 'gitlab-org/gitlab-ce') }
-
-  let!(:merge_request_1) { create_mr!('mr_1', diffs: 1) }
-  let!(:merge_request_2) { create_mr!('mr_2', diffs: 2) }
-  let!(:merge_request_migrated) { create_mr!('merge_request_migrated', diffs: 3) }
-  let!(:merge_request_4) { create_mr!('mr_4', diffs: 3) }
-
-  def create_mr!(name, diffs: 0)
-    merge_request =
-      merge_requests_table.create!(target_project_id: project.id,
-                                   target_branch: 'master',
-                                   source_project_id: project.id,
-                                   source_branch: name,
-                                   title: name)
-
-    diffs.times do
-      merge_request_diffs_table.create!(merge_request_id: merge_request.id)
-    end
-
-    merge_request
-  end
-
-  def diffs_for(merge_request)
-    merge_request_diffs_table.where(merge_request_id: merge_request.id)
-  end
-
-  before do
-    stub_const("#{described_class.name}::BATCH_SIZE", 1)
-
-    diff_id = diffs_for(merge_request_migrated).minimum(:id)
-    merge_request_migrated.update!(latest_merge_request_diff_id: diff_id)
-  end
-
-  it 'correctly schedules background migrations' do
-    Sidekiq::Testing.fake! do
-      Timecop.freeze do
-        migrate!
-
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(5.minutes, merge_request_1.id, merge_request_1.id)
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(10.minutes, merge_request_2.id, merge_request_2.id)
-        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(15.minutes, merge_request_4.id, merge_request_4.id)
-        expect(BackgroundMigrationWorker.jobs.size).to eq 3
-      end
-    end
-  end
-
-  it 'schedules background migrations' do
-    perform_enqueued_jobs do
-      expect(merge_requests_table.where(latest_merge_request_diff_id: nil).count).to eq 3
-
-      migrate!
-
-      expect(merge_requests_table.where(latest_merge_request_diff_id: nil).count).to eq 0
-    end
-  end
-end
diff --git a/spec/migrations/track_untracked_uploads_spec.rb b/spec/migrations/track_untracked_uploads_spec.rb
deleted file mode 100644
index 2fccfb3f12c..00000000000
--- a/spec/migrations/track_untracked_uploads_spec.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20171103140253_track_untracked_uploads')
-
-describe TrackUntrackedUploads, :migration, :sidekiq do
-  include MigrationsHelpers::TrackUntrackedUploadsHelpers
-
-  it 'correctly schedules the follow-up background migration' do
-    Sidekiq::Testing.fake! do
-      migrate!
-
-      expect(described_class::MIGRATION).to be_scheduled_migration
-      expect(BackgroundMigrationWorker.jobs.size).to eq(1)
-    end
-  end
-end
diff --git a/spec/migrations/turn_nested_groups_into_regular_groups_for_mysql_spec.rb b/spec/migrations/turn_nested_groups_into_regular_groups_for_mysql_spec.rb
deleted file mode 100644
index 5f5ba426d69..00000000000
--- a/spec/migrations/turn_nested_groups_into_regular_groups_for_mysql_spec.rb
+++ /dev/null
@@ -1,70 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'migrate', '20170503140202_turn_nested_groups_into_regular_groups_for_mysql.rb')
-
-describe TurnNestedGroupsIntoRegularGroupsForMysql do
-  let!(:parent_group) { create(:group) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let!(:child_group) { create(:group, parent: parent_group) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let!(:project) { create(:project, :legacy_storage, :empty_repo, namespace: child_group) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let!(:member) { create(:user) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let(:migration) { described_class.new }
-
-  before do
-    parent_group.add_developer(member)
-
-    allow(migration).to receive(:run_migration?).and_return(true)
-    allow(migration).to receive(:verbose).and_return(false)
-  end
-
-  describe '#up' do
-    let(:updated_project) do
-      # path_with_namespace is memoized in an instance variable so we retrieve a
-      # new row here to work around that.
-      Project.find(project.id)
-    end
-
-    before do
-      migration.up
-    end
-
-    it 'unsets the parent_id column' do
-      expect(Namespace.where('parent_id IS NOT NULL').any?).to eq(false)
-    end
-
-    it 'adds members of parent groups as members to the migrated group' do
-      is_member = child_group.members
-        .where(user_id: member, access_level: Gitlab::Access::DEVELOPER).any?
-
-      expect(is_member).to eq(true)
-    end
-
-    it 'update the path of the nested group' do
-      child_group.reload
-
-      expect(child_group.path).to eq("#{parent_group.name}-#{child_group.name}")
-    end
-
-    it 'renames projects of the nested group' do
-      expect(updated_project.full_path)
-        .to eq("#{parent_group.name}-#{child_group.name}/#{updated_project.path}")
-    end
-
-    it 'renames the repository of any projects' do
-      repo_path = Gitlab::GitalyClient::StorageSettings.allow_disk_access do
-        updated_project.repository.path
-      end
-
-      expect(repo_path)
-        .to end_with("#{parent_group.name}-#{child_group.name}/#{updated_project.path}.git")
-
-      expect(File.directory?(repo_path)).to eq(true)
-    end
-
-    it 'creates a redirect route for renamed projects' do
-      exists = RedirectRoute
-        .where(source_type: 'Project', source_id: project.id)
-        .any?
-
-      expect(exists).to eq(true)
-    end
-  end
-end
diff --git a/spec/migrations/update_legacy_diff_notes_type_for_import_spec.rb b/spec/migrations/update_legacy_diff_notes_type_for_import_spec.rb
deleted file mode 100644
index d625b60ff50..00000000000
--- a/spec/migrations/update_legacy_diff_notes_type_for_import_spec.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170927112318_update_legacy_diff_notes_type_for_import.rb')
-
-describe UpdateLegacyDiffNotesTypeForImport, :migration do
-  let(:notes) { table(:notes) }
-
-  before do
-    notes.inheritance_column = nil
-
-    notes.create(type: 'Note')
-    notes.create(type: 'LegacyDiffNote')
-    notes.create(type: 'Github::Import::Note')
-    notes.create(type: 'Github::Import::LegacyDiffNote')
-  end
-
-  it 'updates the notes type' do
-    migrate!
-
-    expect(notes.pluck(:type))
-      .to contain_exactly('Note', 'Github::Import::Note', 'LegacyDiffNote', 'LegacyDiffNote')
-  end
-end
diff --git a/spec/migrations/update_notes_type_for_import_spec.rb b/spec/migrations/update_notes_type_for_import_spec.rb
deleted file mode 100644
index 06195d970d8..00000000000
--- a/spec/migrations/update_notes_type_for_import_spec.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170927112319_update_notes_type_for_import.rb')
-
-describe UpdateNotesTypeForImport, :migration do
-  let(:notes) { table(:notes) }
-
-  before do
-    notes.inheritance_column = nil
-
-    notes.create(type: 'Note')
-    notes.create(type: 'LegacyDiffNote')
-    notes.create(type: 'Github::Import::Note')
-    notes.create(type: 'Github::Import::LegacyDiffNote')
-  end
-
-  it 'updates the notes type' do
-    migrate!
-
-    expect(notes.pluck(:type))
-      .to contain_exactly('Note', 'Note', 'LegacyDiffNote', 'Github::Import::LegacyDiffNote')
-  end
-end
diff --git a/spec/migrations/update_retried_for_ci_build_spec.rb b/spec/migrations/update_retried_for_ci_build_spec.rb
deleted file mode 100644
index 637dcbb8e01..00000000000
--- a/spec/migrations/update_retried_for_ci_build_spec.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170503004427_update_retried_for_ci_build.rb')
-
-describe UpdateRetriedForCiBuild, :delete do
-  let(:pipeline) { create(:ci_pipeline) } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let!(:build_old) { create(:ci_build, pipeline: pipeline, name: 'test') } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-  let!(:build_new) { create(:ci_build, pipeline: pipeline, name: 'test') } # rubocop:disable RSpec/FactoriesInMigrationSpecs
-
-  before do
-    described_class.new.up
-  end
-
-  it 'updates ci_builds.is_retried' do
-    expect(build_old.reload).to be_retried
-    expect(build_new.reload).not_to be_retried
-  end
-end
diff --git a/spec/migrations/update_upload_paths_to_system_spec.rb b/spec/migrations/update_upload_paths_to_system_spec.rb
deleted file mode 100644
index 984b428a020..00000000000
--- a/spec/migrations/update_upload_paths_to_system_spec.rb
+++ /dev/null
@@ -1,59 +0,0 @@
-require 'spec_helper'
-require Rails.root.join('db', 'post_migrate', '20170317162059_update_upload_paths_to_system.rb')
-
-describe UpdateUploadPathsToSystem, :migration do
-  let(:migration) { described_class.new }
-  let(:uploads_table) { table(:uploads) }
-  let(:base_upload_attributes) { { size: 42, uploader: 'John Doe' } }
-
-  before do
-    allow(migration).to receive(:say)
-  end
-
-  describe '#uploads_to_switch_to_new_path' do
-    it 'contains only uploads with the old path for the correct models' do
-      _upload_for_other_type = create_upload('Pipeline', 'uploads/ci_pipeline/avatar.jpg')
-      _upload_with_system_path = create_upload('Project', 'uploads/-/system/project/avatar.jpg')
-      _upload_with_other_path = create_upload('Project', 'thelongsecretforafileupload/avatar.jpg')
-      old_upload = create_upload('Project', 'uploads/project/avatar.jpg')
-      group_upload = create_upload('Namespace', 'uploads/group/avatar.jpg')
-
-      expect(uploads_table.where(migration.uploads_to_switch_to_new_path)).to contain_exactly(old_upload, group_upload)
-    end
-  end
-
-  describe '#uploads_to_switch_to_old_path' do
-    it 'contains only uploads with the new path for the correct models' do
-      _upload_for_other_type = create_upload('Pipeline', 'uploads/ci_pipeline/avatar.jpg')
-      upload_with_system_path = create_upload('Project', 'uploads/-/system/project/avatar.jpg')
-      _upload_with_other_path = create_upload('Project', 'thelongsecretforafileupload/avatar.jpg')
-      _old_upload = create_upload('Project', 'uploads/project/avatar.jpg')
-
-      expect(uploads_table.where(migration.uploads_to_switch_to_old_path)).to contain_exactly(upload_with_system_path)
-    end
-  end
-
-  describe '#up' do
-    it 'updates old upload records to the new path' do
-      old_upload = create_upload('Project', 'uploads/project/avatar.jpg')
-
-      migration.up
-
-      expect(old_upload.reload.path).to eq('uploads/-/system/project/avatar.jpg')
-    end
-  end
-
-  describe '#down' do
-    it 'updates the new system patsh to the old paths' do
-      new_upload = create_upload('Project', 'uploads/-/system/project/avatar.jpg')
-
-      migration.down
-
-      expect(new_upload.reload.path).to eq('uploads/project/avatar.jpg')
-    end
-  end
-
-  def create_upload(type, path)
-    uploads_table.create(base_upload_attributes.merge(model_type: type, path: path))
-  end
-end