Comment 20 for bug 1792416

Reviewed: https://review.openstack.org/637539
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=c9b06deaa1c25fdd663e5ce4792c28374d9b2eff
Submitter: Zuul
Branch: stable/queens

commit c9b06deaa1c25fdd663e5ce4792c28374d9b2eff
Author: Damien Ciabrini <email address hidden>
Date: Sun Sep 16 07:38:35 2018 -0400

    mysql: do not overwrite password file during docker-puppet

    During a stack update, when docker-puppet regenerates configs files for the
    mysql service, the root mysql passwords may change. Mysql has to update its
    internal state (e.g. password in mysql DB) to reflect the change, but this
    only happens when paunch restarts mysql; and the old password it required
    to until the change is applied.

    For such services, update the config hash to notify paunch that a restart is
    needed, but do not update the password file in docker-puppet and let the
    service's containers regenerate it instead.

    Change-Id: I5bdbc89897a6dcd5bd57f2132e2acf99702b28ea
    Partial-Bug: #1792416
    (cherry picked from commit 8e67ec833173920ac60b5548a711885a4d28e16f)