MultiDbMigration

Multiple database migration use ridgepole

Installation

Add this line to your application's Gemfile:

gem 'multi_db_migration'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install multi_db_migration

Configuration

• config/multi_db_migration.yml

parallel_num: 1
db:
  config: config/database.yml
shards:
  primary:
    options:
      - --spec-name=primary
      - --ignore-tables=^need_ignore_tables$
      - --skip-drop-table
      - --file=db/schemas/primary/Schemafile
  animals:
    options:
      - --spec-name=animals
      - --ignore-tables=^need_ignore_tables$
      - --skip-drop-table
      - --file=db/schemas/animals/Schemafile

ENV

Name	Default	Description
MULTI_DB_MIGRATION_CONFIG	config/multi_db_migration.yml	path for multi_db_migration.yml

Usage

• dry run

bundle rake multi_db_migration:dry_run

• migrate

bundle rake multi_db_migration:migrate

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/taka0125/multi_db_migration.