Comment 7 for bug 1821377

Reviewed: https://review.opendev.org/656797
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=218582c4cc47d35181ce34a2b27f899fc1316be3
Submitter: Zuul
Branch: stable/rocky

commit 218582c4cc47d35181ce34a2b27f899fc1316be3
Author: Harald Jensås <email address hidden>
Date: Sat Mar 23 14:50:27 2019 +0100

    Make krb-service-principal metadata per-Role

    Not all roles are connected to all networks, there is no
    need to create metadata for networks not associated with
    the role.

    In edge/spine-and-leaf deployments the total number of
    composable networks used can be high. Passing all the
    networks we quickly go beyond the nova metadata fields
    size limit (each field cannot exceed 256 bytes).

    Also update tools/check-up-to-date.sh script to use the
    simple yaml-diff.py instead of diff. The env generator
    code will sort data, while jinja rendered environments
    are not sorted, thus need to diff the data in yaml not
    the text.

    Conflicts:
        environments/ssl/enable-internal-tls.j2.yaml

    Closes-Bug: #1821377
    Change-Id: I5ae3bc845b0a6ad6986d44b14ff4b0737a9b033b
    (cherry picked from commit d5ecc1f6518d14f1ae6fefebd73533f11762bedf)