README.md

Description

This module runs Spanner DDL migrations from a specified directory using gcloud. It looks for .up.sql files in the specified migrations_dir (or an optional sub_directory within it) and applies them in alphabetical order.

Software Requirements

• gcloud CLI

Example

  - id: run_migrations
    source: community/modules/scripts/spanner-migrations-runner
    settings:
      project_id: $(vars.project_id)
      instance_name: my-spanner-instance
      database_name: my-database
      migrations_dir: $(ghpc_stage("my-assets/migrations"))
      sub_directory: db1

License

Copyright 2026 Google LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Requirements

Name	Version
terraform	= 1.12.2
null	>= 3.0

Providers

Name	Version
null	>= 3.0

Modules

No modules.

Resources

Name	Type
null_resource.run_migrations	resource

Inputs

Name	Description	Type	Default	Required
database_name	The Spanner database name.	string	n/a	yes
instance_name	The Spanner instance name.	string	n/a	yes
migrations_dir	The migrations directory.	string	n/a	yes
project_id	The project ID to deploy to.	string	n/a	yes
proto_descriptors_file	Optional path to a compiled proto descriptors file (.pb) needed for custom types in migrations.	string	null	no
sub_directory	Optional sub-directory within migrations_dir to search for SQL files.	string	""	no

Outputs

Name	Description
migration_completion_id	The ID of the migration completion anchor.