rabbitmq epmd process running from user 'root'

[Bartosz Kupidura]

After deployment of 7.0 on controller epmd process is running from 'root' user.
When epmd+rabbitmq is killed, epmd is properly spawned from 'rabbitmq' user.

root@node-2:~# ps aux|grep -i epmd
root 16596 0.0 0.0 9540 2632 ? S 11:47 0:00 /usr/lib/erlang/erts-5.10.4/bin/epmd -daemon
root@node-2:~# kill -9 16596 && killall -9 -u rabbitmq
root@node-2:~# ps aux|grep -i epmd
rabbitmq 12755 0.0 0.0 7492 316 ? S 13:00 0:00 /usr/lib/erlang/erts-5.10.4/bin/epmd -daemon

VERSION:
  feature_groups:
    - mirantis
    - advanced
  production: "docker"
  release: "7.0"
  openstack_version: "2015.1.0-7.0"
  api: "1.0"
  build_number: "154"
  build_id: "2015-08-10_03-11-20"
  nailgun_sha: "58c080206cc17137b124744a40218c89beb6bb28"
  python-fuelclient_sha: "e069d9fde92451ec7f555342951807c5528e96e5"
  fuel-agent_sha: "57145b1d8804389304cd04322ba0fb3dc9d30327"
  fuel-nailgun-agent_sha: "e01693992d7a0304d926b922b43f3b747c35964c"
  astute_sha: "e1d3a435e5df5b40cbfb1a3acf80b4176d15a2dc"
  fuel-library_sha: "1851b4dff75170dbd63f6e15cde734e348e86d27"
  fuel-ostf_sha: "c7f745431aa3c147f2491c865e029e0ffea91c47"
  fuelmain_sha: "bdca75d0256338519c7eddd8a840ee6ecba7f992"

[Bogdan Dobrelya (bogdando)]

this bug is not related to fuel library and has nothing to the puppet manifests.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/230479

[Matthew Mosesohn (raytrac3r)]

We just need to enable the tweaks to prevent rabbitmq-server from starting automatically on package install.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/230479
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=79f6c91d4aa57f91f1337d144d32c8b110c973bd
Submitter: Jenkins
Branch: master

commit 79f6c91d4aa57f91f1337d144d32c8b110c973bd
Author: Matthew Mosesohn <email address hidden>
Date: Fri Oct 2 17:43:49 2015 +0300

    Avoid starting rabbitmq server as root

    Starting rabbitmq-server causes rabbitmq (and dependent
    processes) to start as root user, causing undesirable
    results. epmd process stays running as root until killed
    by OCF scripts. It is more desirable to start rabbitmq
    manually when Puppet tells it to.

    Additionally, rabbitmq-plugins must be run as root
    (in order to set /etc/rabbitmq/enabled_plugins), but as
    a consequence, it starts epmd and leaves it running.
    This can be worked around by starting epmd as rabbitmq
    user before evaluating any plugins.

    Added test for ensuring all RabbitMQ related processes
    are running as rabbitmq user.

    Upstream proposed change:
    https://github.com/puppetlabs/puppetlabs-rabbitmq/pull/403

    Change-Id: Ia6e5392c9d16d1be0ea166a61402d2103c5d4453
    Closes-Bug: #1483249

[Vladimir Khlyunev (vkhlyunev)]

ISO 152 - verified.
right after deployment:
root@node-1:~# ps aux|grep -i epmd
root 4721 0.0 0.0 10460 944 pts/18 S+ 11:27 0:00 grep --color=auto -i epmd
rabbitmq 19004 0.0 0.0 9412 2216 ? S 09:57 0:00 epmd -daemon