Comment 1 for bug 1834042

Reviewed: https://review.opendev.org/665455
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=b1726619959ac8e9cb1d0e2939e097c528a04c81
Submitter: Zuul
Branch: master

commit b1726619959ac8e9cb1d0e2939e097c528a04c81
Author: Alan Bishop <email address hidden>
Date: Fri Jun 14 13:39:27 2019 -0400

    Make Multipathd an optional service

    This is part 1 of a series of patches to properly deploy multipathd.

    This patch makes Multipathd an optional TripleO service (defaults to
    OS::Heat::None), and binds it to every role that might use the service.
    This is essentially any role that accesses cinder volumes. Previously,
    the service was not optional, but was not bound to any roles and so it
    was never deployed.

    Partial-Bug: #1834042
    Change-Id: I3bc7d8557f758103c35533a59e06e36cd15f98b9