openstack-ansible/releasenotes/notes/cinder-rolling-upgrades-f06...

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---
features:
- |
The ``os-cinder-install.yml`` playbook will now execute a rolling
upgrade of cinder including database migrations (both schema and
online) as per the procedure described in the
`cinder documentation <https://docs.openstack.org/developer/cinder/upgrade.html>`_.
When haproxy is used as the load balancer, the backend being
changed will be drained before changes are made, then added back
to the pool once the changes are complete.