diskimage-builder/elements/mysql-migration
Clint Byrum 948347131f Migrate data into MySQL from bootstrap.
Use Heat Metadata to specify host and credentials to pull whole database
snapshot and setup Replication. Also include root credentials for use after
the snapshot has been applied.

Change-Id: Ie3aa92463d28db54a523f520c2b4cdfb528acf9d
2013-04-04 11:12:09 -07:00
..
os-config-applier Migrate data into MySQL from bootstrap. 2013-04-04 11:12:09 -07:00
os-refresh-config/migration.d Migrate data into MySQL from bootstrap. 2013-04-04 11:12:09 -07:00
element-deps Migrate data into MySQL from bootstrap. 2013-04-04 11:12:09 -07:00
README.md Migrate data into MySQL from bootstrap. 2013-04-04 11:12:09 -07:00

Migrate data from another MySQL server into the local one using os-config-applier and os-refresh-config.

Please note the migration process is destructive to any data currently in the MySQL database running on the target host. Safeguards are in place to ensure the process only happens once on any machine.

Configuration

Pass in Heat Metadata with the following structure in the OpenStack::Config sub-key.

mysql:
  users:
    root:
      username: rootuser
      password: XXXXXXX
    dump:
      username: dumpuser
      password: XXXXXXX
mysql-migration:
  bootstrap_host: x.y.z
  slave_user: slave-bot1
  slave_password: XXXXXXXX

The migration process assumes dump and root exist on the bootstrap_host and have access from this host.

The dump user will be used to dump data from bootstrap_host. The root user will be used for localhost access after the database is migrated. If slave_user and slave_password are set to non-empty strings, replication will be setup against the bootstrap_host using this user/password combination.

Special /root/.my.cnf

As a convenience, we copy the given dump and root user names and passwords to /root/.my.cnf after migration. If this file is overwritten, they will also be available as /root/metadata.my.cnf