1 files changed, 22 insertions, 0 deletions
diff --git a/db/migrate/20201012122428_add_container_registry_expiration_policies_worker_capacity_constraint.rb b/db/migrate/20201012122428_add_container_registry_expiration_policies_worker_capacity_constraint.rb
new file mode 100644
index 00000000000..e4f7d1309a3
--- /dev/null
+++ b/db/migrate/20201012122428_add_container_registry_expiration_policies_worker_capacity_constraint.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+# See https://docs.gitlab.com/ee/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddContainerRegistryExpirationPoliciesWorkerCapacityConstraint < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  CONSTRAINT_NAME = 'app_settings_registry_exp_policies_worker_capacity_positive'
+
+  disable_ddl_transaction!
+
+  def up
+    add_check_constraint :application_settings, 'container_registry_expiration_policies_worker_capacity >= 0', CONSTRAINT_NAME
+  end
+
+  def down
+    remove_check_constraint :application_settings, CONSTRAINT_NAME
+  end
+end