openstack-ansible/releasenotes/notes/nova-rolling-upgrades-5a3927330c6be5fd.yaml
Jesse Pretorius 4cef8b6b20 Implement rolling upgrades for nova
Based on [1], this patch implements changes to
the playbook which executes the nova deployment
in a play per host group, serialised to ensure
that:

1. The services are changed in the right order.
2. The API services remain available at all times during
   an upgrade.
3. If services are sharing a host/container then the
   role execution will not execute twice on the same
   host.

[1] https://docs.openstack.org/developer/nova/upgrade.html

Depends-On: I08e5a7f0ce526b11aa52c35ee29c458954a5f22d
Change-Id: I3173962a35b716fd9b0b2a526420fcc5d844befa
2017-07-07 15:54:58 +01:00

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YAML

---
features:
- |
The ``os-nova-install.yml`` playbook will now execute a rolling
upgrade of nova including database migrations as per the procedure
described in the
`nova documentation <https://docs.openstack.org/developer/nova/upgrade.html>`_.