wsgi_script based ceilometer-api binary does not support the same CLI arguments as console_script version

Running ceilometer-api from the CLI:

$ ceilometer-api
Traceback (most recent call last):
  File "/usr/bin/ceilometer-api", line 20, in <module>
    server = wss.make_server('', args.port, load_app())
  File "/usr/lib/python2.7/dist-packages/ceilometer/api/app.py", line 85, in load_app
    cfg_file = CONF.find_file(cfg_path)
  File "/usr/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2580, in find_file
    raise NotInitializedError()
oslo_config.cfg.NotInitializedError: call expression on parser has not been invoked

and from the systemd service:

Sep 21 10:55:02 adapted-tahr ceilometer-api[4932]: usage: ceilometer-api [-h] [--port PORT]
Sep 21 10:55:02 adapted-tahr ceilometer-api[4932]: ceilometer-api: error: unrecognized arguments: --config-file=/etc/ceilometer/ceilometer.conf --log-file=/var/log/ceilometer/ceilometer-api.log

Currently we pass in --config-file and --log-file - the new binary does not support these options.

You can pass them by using --:

ceilometer-api -- --config-file=foobar

This change requires a pbr version > 1.8 (current in yakkety development). Upstream is aligned with 1.10.0 in upper-constraints.txt; we should bump to that revision.

As the majority of packages in the archive that depend on pbr are openstack things, this should be low risk, as we are simply aligning version of pbr with upstream openstack.

> we are simply aligning version of pbr with upstream openstack.

Sounds good, please go ahead.

Thanks Martin. We've uploaded a new version of python-pbr to yakkety and it's in the review queue.

This bug was fixed in the package ceilometer - 1:7.0.0~rc2-0ubuntu1

---------------
ceilometer (1:7.0.0~rc2-0ubuntu1) yakkety; urgency=medium

  * New upstream release candidate for OpenStack Newton.
    - d/p/bug1624873.patch: Drop, included in new RC.
  * Fix issues due to switch to wsgi_script for ceilometer-api (LP: #1626006):
    - d/control: Set minimum version of python-pbr to 1.10.0 to ensure
      that useful wsgi_scripts are generated for ceilometer-api.
    - d/ceilometer-api.{service,init}.in: Switch to direct use of systemd
      unit file instead of relying on openstack-pkg-tools for generation of
      templated versions to ensure that configuration options are passed
      correctly to wsgi_script generated ceilometer-api.

 -- James Page <email address hidden> Fri, 23 Sep 2016 10:46:22 +0100

This bug was fixed in the package python-pbr - 1.10.0-0ubuntu3

---------------
python-pbr (1.10.0-0ubuntu3) yakkety; urgency=medium

  * d/control, d/p/stop-gpg-agent.patch: Use psutil to stop gpg agent only
    if it's running.

 -- Corey Bryant <email address hidden> Tue, 04 Oct 2016 16:57:28 -0400