Comment 8 for bug 1830852

Reviewed: https://review.opendev.org/662041
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=c1865bafb18f213be19a0b2c7bfca6e8f8e27ca1
Submitter: Zuul
Branch: stable/stein

commit c1865bafb18f213be19a0b2c7bfca6e8f8e27ca1
Author: Harald Jensås <email address hidden>
Date: Wed May 29 09:34:52 2019 +0200

    Fix custom network.name_lower in krb-service-principals

    The lowercase network names was hardcoded to 'external',
    'internal_api' and 'storage_mgmt'. Use jinja to get the
    network.name_lower value from network_data.yaml instead
    so that users can customize the lowercase network name.

    Handle service_net_map_replace in the jinja2 logic so that
    service_net_map_replace works for both default networks and
    custom networks.

    Enables a user either to change 'name_lower' of a network
    and overriding the ServiceNetMap accordingly, as well as
    user changeing 'name_lower' and use 'service_net_map_replace'
    so that the default ServiceNetMap can be used.

    Closes-Bug: #1830852
    Change-Id: Ie9bd482782ff770d90dfc38a585237812ed81c06
    (cherry picked from commit c0fcf8674d5f7c5c0cec1179fa56ef4536d5c5fb)
    (cherry picked from commit f708ab7a827cc0db211b4709447f77126087347e)