From 0e15eec86d83cbdfefe17966bf5c02e4d419a34d Mon Sep 17 00:00:00 2001
From: Thong Kuah <tkuah@gitlab.com>
Date: Mon, 15 Oct 2018 09:42:29 +1300
Subject: Associate clusters model to groups
Even though we currently only should have one group for a cluster, we
allow the flexibility to associate to other groups in the future.
This also matches the runner <=> groups association.
- Adds Cluster#first_group, aliased to Cluster#group. For the
conceivable future, a cluster will have at most one group.
- Prevent mixing of group and project clusters. If project type
clusters, it should only have projects assigned. Similarly with groups.
- Default cluster_type to :project_type. As it's very small table we can
set default and null: false in one release.
---
db/migrate/20181014203236_create_cluster_groups.rb | 17 +++++++++++++++++
.../20181017001059_add_cluster_type_to_clusters.rb | 18 ++++++++++++++++++
2 files changed, 35 insertions(+)
create mode 100644 db/migrate/20181014203236_create_cluster_groups.rb
create mode 100644 db/migrate/20181017001059_add_cluster_type_to_clusters.rb
(limited to 'db/migrate')
diff --git a/db/migrate/20181014203236_create_cluster_groups.rb b/db/migrate/20181014203236_create_cluster_groups.rb
new file mode 100644
index 00000000000..69382d5c851
--- /dev/null
+++ b/db/migrate/20181014203236_create_cluster_groups.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class CreateClusterGroups < ActiveRecord::Migration
+ include Gitlab::Database::MigrationHelpers
+
+ DOWNTIME = false
+
+ def change
+ create_table :cluster_groups do |t|
+ t.references :cluster, null: false, foreign_key: { on_delete: :cascade }
+ t.references :group, null: false, index: true
+
+ t.index [:cluster_id, :group_id], unique: true
+ t.foreign_key :namespaces, column: :group_id, on_delete: :cascade
+ end
+ end
+end
diff --git a/db/migrate/20181017001059_add_cluster_type_to_clusters.rb b/db/migrate/20181017001059_add_cluster_type_to_clusters.rb
new file mode 100644
index 00000000000..191e7eb4fb3
--- /dev/null
+++ b/db/migrate/20181017001059_add_cluster_type_to_clusters.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class AddClusterTypeToClusters < ActiveRecord::Migration
+ include Gitlab::Database::MigrationHelpers
+
+ DOWNTIME = false
+ PROJECT_CLUSTER_TYPE = 3
+
+ disable_ddl_transaction!
+
+ def up
+ add_column_with_default(:clusters, :cluster_type, :smallint, default: PROJECT_CLUSTER_TYPE)
+ end
+
+ def down
+ remove_column(:clusters, :cluster_type)
+ end
+end
--
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