Comment 18 for bug 1831690

Reviewed: https://review.opendev.org/667139
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=34450cc635e8dfc7e6f1bb406cb9e7fd978a2db5
Submitter: Zuul
Branch: stable/stein

commit 34450cc635e8dfc7e6f1bb406cb9e7fd978a2db5
Author: Jiri Stransky <email address hidden>
Date: Fri May 10 15:52:49 2019 +0200

    Remove OpenStack packages right before upgrading the operating system

    This could make the upgrade faster, but mainly it's less likely that
    something will go wrong when the node goes down for the offline
    upgrade. We want to minimize the chances of that happening, because
    such error is extremely unpleasant to deal with (restore from backup
    might be the only solution at that point).

    Partial-Bug: #1831690
    Change-Id: Iddf30278f0cb4eb93fcbd8dc829e247bfb534562
    (cherry picked from commit bf8cde549b60a0621b9188a3d99f1610ba062009)