1 files changed, 23 insertions, 0 deletions
diff --git a/db/migrate/20201119125730_add_web_hooks_service_foreign_key.rb b/db/migrate/20201119125730_add_web_hooks_service_foreign_key.rb
new file mode 100644
index 00000000000..d350a7de282
--- /dev/null
+++ b/db/migrate/20201119125730_add_web_hooks_service_foreign_key.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class AddWebHooksServiceForeignKey < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  INDEX_NAME = 'index_web_hooks_on_service_id'
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :web_hooks, :service_id, name: INDEX_NAME
+    add_concurrent_foreign_key :web_hooks, :services, column: :service_id, on_delete: :cascade, validate: false
+  end
+
+  def down
+    with_lock_retries do
+      remove_foreign_key_if_exists :web_hooks, column: :service_id
+    end
+
+    remove_concurrent_index_by_name :web_hooks, INDEX_NAME
+  end
+end