The issue is present if you're running 2 or more nodes with
a keepalived < 1.2.8. This bumps the version of keepalived role
(installing a more recent version of keepalived by default) AND
edits the keepalived configuration file to avoid having nodes
with the same priority.
This will restart your keepalived service.
Please note this commit is not meant for backporting. The deployer
running on mitaka and below should follow the documentation here:
https://review.openstack.org/#/c/279664/
Bug: #1545066
Change-Id: Ie28d2d3fa8670212c64ecbdf5a87314e7ca0a2d9
12a3fbafd0