Useful for upgrade etc., which is preferablly done serially.
Example usage: tools/kolla-ansible deploy OR tools/kolla-ansible upgrade
Closes-Bug: #1576708
DocImpact
Change-Id: I34b2e16f8ce53e472a4682a4738c4ac0f5abf00c
Based on the Nova upgrade patch and recommendations from Swift PTL John
Dickinson at
https://swiftstack.com/blog/2013/12/20/upgrade-openstack-swift-no-downtime/
Notes:
As part of this upgrade I have chosen to *not* migrate any data from the
old style swift_data container. This is because it was never intended to
be used in production; this fact is made clear in the docs.
In regards to testing, as of this patch we do not yet have an upgrade
task for the common containers (rsyslog and kolla-toolbox), so
attempting to upgrade swift will result in it failing to find the
kolla-toolbox. This will be true of any other upgrade until upgrade for
common is added. It can be worked around by deploying another role such
as keystone which will drag in the common role and start up
kolla-toolbox, after which Swift can be successfully upgraded.
Change-Id: I138556932e9bddcd595d94a3dcb69603268880ff
Partially-Implements: blueprint upgrade-kolla
Implements: blueprint upgrade-swift
After introduction of pull action and turing every main.yml into
{{action}}.yml we lost ability to perform upgrade
Change-Id: Ie9fa2cd083b061033abc733fba53d54f9c55e393
Fixes-Bug: #1538210