Comment 2 for bug 1845366

Reviewed: https://review.opendev.org/684826
Committed: https://git.openstack.org/cgit/openstack/tripleo-ansible/commit/?id=2cbe99b42950b385f2d4eb661d9f88ed5d2ef348
Submitter: Zuul
Branch: master

commit 2cbe99b42950b385f2d4eb661d9f88ed5d2ef348
Author: Brent Eagles <email address hidden>
Date: Wed Sep 25 15:34:56 2019 -0230

    Handle empty cert related hostvar info

    When certificates are neither generated nor provided (e.g. on update)
    related variables would be empty or undefined and need to be handled
    accordingly.

    Closes-Bug: #1845366
    Change-Id: I361c90e438e79e180e2a745da82e619347fed13e