1 files changed, 29 insertions, 0 deletions
diff --git a/db/post_migrate/20210518074332_schedule_disable_expiration_policies_linked_to_no_container_images.rb b/db/post_migrate/20210518074332_schedule_disable_expiration_policies_linked_to_no_container_images.rb
new file mode 100644
index 00000000000..8583f8541c7
--- /dev/null
+++ b/db/post_migrate/20210518074332_schedule_disable_expiration_policies_linked_to_no_container_images.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class ScheduleDisableExpirationPoliciesLinkedToNoContainerImages < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  BATCH_SIZE = 30_000
+  DELAY = 2.minutes.freeze
+  DOWNTIME = false
+  MIGRATION = 'DisableExpirationPoliciesLinkedToNoContainerImages'
+
+  disable_ddl_transaction!
+
+  def up
+    queue_background_migration_jobs_by_range_at_intervals(
+      define_batchable_model('container_expiration_policies').where(enabled: true),
+      MIGRATION,
+      DELAY,
+      batch_size: BATCH_SIZE,
+      track_jobs: false,
+      primary_column_name: :project_id
+    )
+  end
+
+  def down
+    # this migration is irreversible
+
+    # we can't accuretaly know which policies were previously enabled during the background migration
+  end
+end