Comment 4 for bug 1838804

Reviewed: https://review.opendev.org/674402
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=9a6be5798f1654c883ed09e4086df53ffb236971
Submitter: Zuul
Branch: stable/queens

commit 9a6be5798f1654c883ed09e4086df53ffb236971
Author: Ade Lee <email address hidden>
Date: Fri Aug 2 14:23:17 2019 -0400

    Update mysql url for cell0 in step3

    When doing a TLS brown field deployment (ie. updating a previously
    deployed system without internal TLS to using internal TLS), the
    database endpoint stored in the db for the default cell and cell0
    must be changed in step3.

    Logic already exists in step 3 to change the default cell, and the
    FFU group added logic to update cell0 in step 5. We just need to
    move that logic to step 3.

    Note that this is not a problem in stein+ because we have already
    added logic to set the db endpoint for both cells using
    templated values for both cells in step 3.

    Closes-Bug: 1838804

    Change-Id: I7b5f6e0a2c8ba77fd575cf1a1003a1553f96efff