[rfe] change neutron process names to match their role

[Doug Wiegley]

See the commit message description here: https://review.openstack.org/#/c/637019/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/637119
Committed: https://git.openstack.org/cgit/openstack/neutron-lib/commit/?id=2c1e09bfd5a275c74213d200a7455bbf46893a1a
Submitter: Zuul
Branch: master

commit 2c1e09bfd5a275c74213d200a7455bbf46893a1a
Author: Doug Wiegley <email address hidden>
Date: Thu Feb 14 20:24:02 2019 -0700

    Add setproctitle support to the workers module

    - Set the process name of child neutron-servers to be something more
      readily identifiable than today.
    - Enable by default for all users of the workers module, neutron will
      have a conf setting for its workers.

    Matching neutron change:
    https://review.openstack.org/637019

    Partial-Bug: #1816485
    Depends-On: https://review.openstack.org/637024
    Change-Id: Ic6eca08f2ccacb3f8bf741c47a45e88cd3877b29

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/637019
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=61b231a9995a0fe3230302ce913ffde707393d81
Submitter: Zuul
Branch: master

commit 61b231a9995a0fe3230302ce913ffde707393d81
Author: Doug Wiegley <email address hidden>
Date: Thu Feb 14 11:12:57 2019 -0700

    Change process name of neutron-server to match worker role

    We spawn a lot of neutron-servers, on all but the smallest systems.
    It's often hard to tell which are busy/overloaded or spinning.
    Add an option to set the process names to their role.

    This has a small chance of breaking existing scripting, depending
    how they're parsing ps output.

    Sample output:
    $ ps xw | grep neutron-server
     1126 pts/2 S+ 0:00 grep --color=auto neutron-server
    25355 ? Ss 0:26 /usr/bin/python /usr/local/bin/neutron-server \
      --config-file /etc/neutron/neutron.conf \
      --config-file /etc/neutron/plugins/ml2/ml2_conf.ini
    25368 ? S 0:00 neutron-server: api worker
    25369 ? S 0:00 neutron-server: api worker
    25370 ? S 0:00 neutron-server: api worker
    25371 ? S 0:00 neutron-server: api worker
    25372 ? S 0:02 neutron-server: rpc worker
    25373 ? S 0:02 neutron-server: rpc worker
    25374 ? S 0:02 neutron-server: services worker

    The "normal" looking ps output is the main parent.

    Partial-Bug: #1816485
    Depends-On: https://review.openstack.org/637119
    Change-Id: I0e664a5f8e792d85b8f5483fb8c6f1cd59a677cd

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/693396

[OpenStack Infra (hudson-openstack)]

Change abandoned by Nate Johnston (<email address hidden>) on branch: stable/rocky
Review: https://review.opendev.org/693396
Reason: Sorry, I thought this was a neutron change not a neutron-lib change.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.opendev.org/693412

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/693413

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.opendev.org/693415

[OpenStack Infra (hudson-openstack)]

Change abandoned by Nate Johnston (<email address hidden>) on branch: stable/rocky
Review: https://review.opendev.org/693413
Reason: impossible due to backport requirements change

[OpenStack Infra (hudson-openstack)]

Change abandoned by Nate Johnston (<email address hidden>) on branch: stable/rocky
Review: https://review.opendev.org/693396
Reason: impossible due to backport requirements change

[OpenStack Infra (hudson-openstack)]

Change abandoned by Nate Johnston (<email address hidden>) on branch: stable/queens
Review: https://review.opendev.org/693412
Reason: Cancelling backport b/c this does not meet backport rules.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Nate Johnston (<email address hidden>) on branch: stable/queens
Review: https://review.opendev.org/693415
Reason: Cancelling backport b/c this does not meet backport rules.