Comment 7 for bug 1794320

Reviewed: https://review.openstack.org/605111
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-os_sahara/commit/?id=7f595f01b10a59d8fc9df3509a765e8f722ee3eb
Submitter: Zuul
Branch: master

commit 7f595f01b10a59d8fc9df3509a765e8f722ee3eb
Author: ZhijunWei <email address hidden>
Date: Wed Sep 19 08:20:41 2018 -0400

    Update messaging notification configuration

    This patch removes the conditional inclusion of the notification
    section of the service configuration. This ensures that oslo.messaging
    notifications use the correct transport for deployments that have
    separate rpc and notify messaging backends. For example, if the
    transport_url is not provided in the notification section of the
    service configuration, the transport_url specified in the default
    section will be used instead.

    This patch conditionally selects the notifier driver. The noop
    driver will be selected when notification publishing is disabled.
    The messagingv2 driver is selected when notification publishing is
    enabled.

    Change-Id: Ib68aa2669b5d70626ed2777d5601d8914207451d
    Closes-Bug: #1794320