Comment 1 for bug 1807418

Reviewed: https://review.openstack.org/622969
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=5bc5ae944a32d5c24090a4c5f5e44c64c2879c1a
Submitter: Zuul
Branch: master

commit 5bc5ae944a32d5c24090a4c5f5e44c64c2879c1a
Author: Jose Luis Franco Arza <email address hidden>
Date: Wed Dec 5 15:09:07 2018 +0100

    Perform docker reconfiguration on upgrade_tasks.

    The container-registry role is idempotent in a way that the
    restarting of the docker service will be done only if some
    configuration value has changed.
    During the upgrade, host_prep_tasks are being run and if the
    new templates bring some configuration change then the Docker
    service gets restarted. The issue is the point at which they
    get restarted, which is after the upgrade_tasks have already
    run and prior to the deploy_tasks. This is causing issues with
    Pacemaker handled resources.

    For that reason, we include the very same task running in host_prep_tasks
    into upgrade_tasks for the docker and docker-registry services,
    forcing the Docker service reconfiguration to happen during
    upgrade_tasks instead of at a latter point.

    Closes-Bug: #1807418
    Change-Id: I5e6ca987c01ff72a3c7e8900f9572024521164de