Comment 3 for bug 1537885

Reviewed: https://review.openstack.org/286446
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=c5049d8ffbf9579a6e726c0031411ddb57e1a625
Submitter: Jenkins
Branch: master

commit c5049d8ffbf9579a6e726c0031411ddb57e1a625
Author: Michele Baldessari <email address hidden>
Date: Fri Feb 26 07:41:42 2016 +0000

    Move ordering constraints from httpd to openstack-core

    With the move of keystone under wsgi and httpd, all openstack services received an
    ordering constraint on the 'httpd' service (which now exposes keystone and horizon).

    Since this is not only a layering violation, but it also removes the ability to
    restart keystone (httpd) without having to restart all dependent services, we introduce
    a dummy 'openstack-core' service which all other services depend on and we make also
    keystone (httpd) depend on it.

    The previous constraint ordering graph can be found here:
    http://acksyn.org/files/tripleo/wsgi-2016-02-24-cib.pdf

    Whereas after this change we have the following ordering graph:
    http://acksyn.org/files/tripleo/wsgi-openstack-core.pdf

    Once this is agreed upon, we can start working on fixing the upgrade path
    from Liberty.

    This fixes RHBZ#1290121

    Closes bug: 1537885

    Change-Id: Ie26908ac9bfc0b84b6b65ae3bda711236b03d9d4