Comment 2 for bug 1804459

Reviewed: https://review.openstack.org/619247
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=0bf32c5796b4001a87d95eba0ae6828ae357fdd5
Submitter: Zuul
Branch: master

commit 0bf32c5796b4001a87d95eba0ae6828ae357fdd5
Author: Sofer Athlan-Guyot <email address hidden>
Date: Wed Nov 21 14:50:31 2018 +0100

    Remove validation part of the online database migration pre-upgrade.

    That task included a validation in the form of "if the container is
    not there fails". This was done to ensure that the online database
    migration was run even in the case where the upgrade was run on a
    environment where some container would be stopped for some reason.

    This validation proves to be problematic as having the related host
    services stopped and the container non-running is a "legitimate" state
    during the re-run of a fail upgrade.

    That validation then completely blocks the upgrade.

    We remove the validation part of that tasks as it's very unlikely,
    belongs to a validation tasks to be done outside of the upgrade and
    block a valid path from working.

    Change-Id: I6ca70cb913f7cdd6fc4fbcc70698992e2074dc9c
    Closes-Bug: #1804459