oslo_messaging_rabbit section should be replaced by [DEFAULT]/transport_url in devstack

[Hidekazu Nakamura]

Currently rabbit configuration is defined by oslo_messaging_rabbit section in watcher.conf of devstack plugin.

[oslo_messaging_rabbit]
rabbit_host = 172.18.11.143
rabbit_password = stackqueue
rabbit_userid = stackrabbit

These options are deprecated for removal. Its value may be silently ignored in the future[1]
These are replaced by [DEFAULT]/transport_url

[1] https://docs.openstack.org/oslo.messaging/latest/configuration/opts.html#oslo_messaging_rabbit.rabbit_host

[Alexander Chadin (joker946)]

We need to update devstack plugin to use tranport_url instead of three separate options

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/555078
Committed: https://git.openstack.org/cgit/openstack/watcher/commit/?id=52a5c99fc597c8cc04690c4f76672a4601c555c1
Submitter: Zuul
Branch: master

commit 52a5c99fc597c8cc04690c4f76672a4601c555c1
Author: Egor Panfilov <email address hidden>
Date: Thu Mar 22 01:05:54 2018 +0300

    Replaced deprecated oslo_messaging_rabbit section

    Added creation of [DEFAULT]/transport_url value
    in devstack.

    Also, fixed same topic in docs.

    Change-Id: I9ad9475c4fccf023daac40c0b1e841eeeb22f040
    Closes-Bug: 1738329

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/watcher 1.9.0 release.