Comment 12 for bug 1992988

Reviewed: https://review.opendev.org/c/openstack/tripleo-heat-templates/+/861100
Committed: https://opendev.org/openstack/tripleo-heat-templates/commit/76e37a3b7f0fb26d413c7bb62b99b640a18a0fd1
Submitter: "Zuul (22348)"
Branch: stable/wallaby

commit 76e37a3b7f0fb26d413c7bb62b99b640a18a0fd1
Author: Damien Ciabrini <email address hidden>
Date: Wed Feb 15 11:15:36 2023 +0100

    HA: minor update with new container image name

    Pacemaker-managed services use intermediate container
    image names internally to implement minor updates without
    service disruption. The naming scheme is configured at
    initial deployment from Heat parameters ClusterCommonTag
    and ClusterFullTag.

    This change makes it possible to change the configured
    naming scheme during a minor update, without causing
    service disruption. It works by running new external
    update tasks to prepare for the switch prior to the
    minor update.

    For the `test_tht_ansible_syntax.py` test we have populated
    the groups so that the test won't fail because of an empty
    inventory. Note that the final host list passed to the
    `tripleo_ha_image_update` role is empty.

    Closes-Bug: #1992988

    Depends-On: https://review.opendev.org/c/openstack/tripleo-ansible/+/872029
    Change-Id: Ic6da7d30105f14fb793c2e834ebf8dcdd7c719a3