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|
# frozen_string_literal: true
require 'gitlab'
require_relative File.expand_path('../../lib/quality/helm_client.rb', __dir__)
require_relative File.expand_path('../../lib/quality/kubernetes_client.rb', __dir__)
class AutomatedCleanup
attr_reader :project_path, :gitlab_token
DEPLOYMENTS_PER_PAGE = 100
HELM_RELEASES_BATCH_SIZE = 5
IGNORED_HELM_ERRORS = [
'transport is closing',
'error upgrading connection'
].freeze
IGNORED_KUBERNETES_ERRORS = [
'NotFound'
].freeze
def self.ee?
# Support former project name for `dev`
%w[gitlab gitlab-ee].include?(ENV['CI_PROJECT_NAME'])
end
def initialize(project_path: ENV['CI_PROJECT_PATH'], gitlab_token: ENV['GITLAB_BOT_REVIEW_APPS_CLEANUP_TOKEN'])
@project_path = project_path
@gitlab_token = gitlab_token
ENV['TILLER_NAMESPACE'] ||= review_apps_namespace
end
def gitlab
@gitlab ||= begin
Gitlab.configure do |config|
config.endpoint = 'https://gitlab.com/api/v4'
# gitlab-bot's token "GitLab review apps cleanup"
config.private_token = gitlab_token
end
Gitlab
end
end
def review_apps_namespace
self.class.ee? ? 'review-apps-ee' : 'review-apps-ce'
end
def helm
@helm ||= Quality::HelmClient.new(namespace: review_apps_namespace)
end
def kubernetes
@kubernetes ||= Quality::KubernetesClient.new(namespace: review_apps_namespace)
end
def perform_gitlab_environment_cleanup!(days_for_stop:, days_for_delete:)
puts "Checking for review apps not updated in the last #{days_for_stop} days..."
checked_environments = []
delete_threshold = threshold_time(days: days_for_delete)
stop_threshold = threshold_time(days: days_for_stop)
deployments_look_back_threshold = threshold_time(days: days_for_delete * 5)
releases_to_delete = []
gitlab.deployments(project_path, per_page: DEPLOYMENTS_PER_PAGE, sort: 'desc').auto_paginate do |deployment|
break if Time.parse(deployment.created_at) < deployments_look_back_threshold
environment = deployment.environment
next unless environment
next unless environment.name.start_with?('review/')
next if checked_environments.include?(environment.slug)
last_deploy = deployment.created_at
deployed_at = Time.parse(last_deploy)
if deployed_at < delete_threshold
delete_environment(environment, deployment)
release = Quality::HelmClient::Release.new(environment.slug, 1, deployed_at.to_s, nil, nil, review_apps_namespace)
releases_to_delete << release
elsif deployed_at < stop_threshold
stop_environment(environment, deployment)
else
print_release_state(subject: 'Review app', release_name: environment.slug, release_date: last_deploy, action: 'leaving')
end
checked_environments << environment.slug
end
delete_helm_releases(releases_to_delete)
end
def perform_helm_releases_cleanup!(days:)
puts "Checking for Helm releases not updated in the last #{days} days..."
threshold_day = threshold_time(days: days)
releases_to_delete = []
helm_releases.each do |release|
# Prevents deleting `dns-gitlab-review-app` releases or other unrelated releases
next unless release.name.start_with?('review-')
if release.status == 'FAILED' || release.last_update < threshold_day
releases_to_delete << release
else
print_release_state(subject: 'Release', release_name: release.name, release_date: release.last_update, action: 'leaving')
end
end
delete_helm_releases(releases_to_delete)
end
private
def delete_environment(environment, deployment)
print_release_state(subject: 'Review app', release_name: environment.slug, release_date: deployment.created_at, action: 'deleting')
gitlab.delete_environment(project_path, environment.id)
end
def stop_environment(environment, deployment)
print_release_state(subject: 'Review app', release_name: environment.slug, release_date: deployment.created_at, action: 'stopping')
gitlab.stop_environment(project_path, environment.id)
end
def helm_releases
args = ['--all', '--date', "--max #{HELM_RELEASES_BATCH_SIZE}"]
helm.releases(args: args)
end
def delete_helm_releases(releases)
return if releases.empty?
releases.each do |release|
print_release_state(subject: 'Release', release_name: release.name, release_status: release.status, release_date: release.last_update, action: 'cleaning')
end
releases_names = releases.map(&:name)
helm.delete(release_name: releases_names)
kubernetes.cleanup(release_name: releases_names, wait: false)
rescue Quality::HelmClient::CommandFailedError => ex
raise ex unless ignore_exception?(ex.message, IGNORED_HELM_ERRORS)
puts "Ignoring the following Helm error:\n#{ex}\n"
rescue Quality::KubernetesClient::CommandFailedError => ex
raise ex unless ignore_exception?(ex.message, IGNORED_KUBERNETES_ERRORS)
puts "Ignoring the following Kubernetes error:\n#{ex}\n"
end
def threshold_time(days:)
Time.now - days * 24 * 3600
end
def ignore_exception?(exception_message, exceptions_ignored)
exception_message.match?(/(#{exceptions_ignored})/)
end
def print_release_state(subject:, release_name:, release_date:, action:, release_status: nil)
puts "\n#{subject} '#{release_name}' #{"(#{release_status}) " if release_status}was last deployed on #{release_date}: #{action} it.\n"
end
end
def timed(task)
start = Time.now
yield(self)
puts "#{task} finished in #{Time.now - start} seconds.\n"
end
automated_cleanup = AutomatedCleanup.new
timed('Review apps cleanup') do
automated_cleanup.perform_gitlab_environment_cleanup!(days_for_stop: 2, days_for_delete: 3)
end
puts
timed('Helm releases cleanup') do
automated_cleanup.perform_helm_releases_cleanup!(days: 3)
end
exit(0)
|
