Comment 7 for bug 1805825

Reviewed: https://review.openstack.org/624623
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=09daf69622d560bb0c349e65e63c75c1c6aff108
Submitter: Zuul
Branch: stable/rocky

commit 09daf69622d560bb0c349e65e63c75c1c6aff108
Author: Sofer Athlan-Guyot <email address hidden>
Date: Wed Oct 31 12:26:58 2018 +0100

    mistral-executor: bind-mount undercloud.conf when validations are enabled

    When validations are enabled, let's:

    - Bind mount undercloud.conf using UndercloudConfigFilePath generated by
      tripleoclient and mount it to mistral-executor into
      /var/lib/mistral/undercloud.conf in raed-only mode.
    - Export tripleo_undercloud_conf_file hieradata, needed by Ansible when
      looking for the the Undercloud config file path.
      Note: it could be improved in the future by not relying on Hiera
      anymore and using an Ansible variable that we would export into the
      container.

    Closes-Bug: #1805825

    Co-Authored-By: Sofer Athlan-Guyot <email address hidden>
    Co-Authored-By: Emilien Macchi <email address hidden>
    Co-Authored-By: Gael Chamoulaud <email address hidden>
    Co-Authored-By: Florian Fuchs <email address hidden>

    Depends-On: I38f6d562ab452f765672e7cc4e71206b562c471b

    Change-Id: Id947ad7efc96c4657f7b0a0fec4c0036e0044d0e
    (cherry picked from commit bcb079af86304e162a6d29dd0f1fd384fcbe4883)