1 files changed, 28 insertions, 0 deletions
diff --git a/db/migrate/20201015231049_add_ci_build_id_to_terraform_state_versions.rb b/db/migrate/20201015231049_add_ci_build_id_to_terraform_state_versions.rb
new file mode 100644
index 00000000000..539b2af5fc4
--- /dev/null
+++ b/db/migrate/20201015231049_add_ci_build_id_to_terraform_state_versions.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+class AddCiBuildIdToTerraformStateVersions < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  INDEX_NAME = 'index_terraform_state_versions_on_ci_build_id'
+
+  disable_ddl_transaction!
+
+  def up
+    unless column_exists?(:terraform_state_versions, :ci_build_id)
+      add_column :terraform_state_versions, :ci_build_id, :bigint
+    end
+
+    add_concurrent_index :terraform_state_versions, :ci_build_id, name: INDEX_NAME
+    add_concurrent_foreign_key :terraform_state_versions, :ci_builds, column: :ci_build_id, on_delete: :nullify
+  end
+
+  def down
+    with_lock_retries do
+      remove_foreign_key_if_exists :terraform_state_versions, :ci_builds, column: :ci_build_id
+    end
+
+    remove_concurrent_index_by_name :terraform_state_versions, INDEX_NAME
+    remove_column :terraform_state_versions, :ci_build_id
+  end
+end