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diff --git a/keystone-moon/doc/source/online_schema_migration_examples.rst b/keystone-moon/doc/source/online_schema_migration_examples.rst new file mode 100644 index 00000000..0e0fb399 --- /dev/null +++ b/keystone-moon/doc/source/online_schema_migration_examples.rst @@ -0,0 +1,24 @@ + +==================================== +Online SQL schema migration examples +==================================== + +This document links to several examples implementing online SQL schema +migrations to facilitate simultaneously running OpenStack services in +different versions with the same DB schema. + + +* Nova `data migration example + <http://specs.openstack.org/openstack/nova-specs/specs/kilo/implemented/flavor-from-sysmeta-to-blob.html>`_ +* Nova `data migration enforcement example + <https://review.openstack.org/#/c/174480/15/nova/db/sqlalchemy/migrate_repo/versions/291_enforce_flavors_migrated.py>`_ + of sqlalchemy migrate/deprecated scripts +* Nova `flavor migration spec + <http://specs.openstack.org/openstack/nova-specs/specs/kilo/implemented/flavor-from-sysmeta-to-blob.html>`_ + example of data migrations in the object layer +* Cinder `online schema upgrades spec <https://specs.openstack.org/openstack/cinder-specs/specs/mitaka/online-schema-upgrades.html>`_ + example of migrating a column to a many-to-many relation table + + +For documentation on how to make online migrations move on to +:ref:`Database Schema Migrations <online-migration>`. |