[Bug 1581171] Fix merged to charm-glance (stable/16.04)

[OpenStack Infra]

Reviewed:  https://review.openstack.org/318224
Committed: https://git.openstack.org/cgit/openstack/charm-glance/commit/?id=6956376e65095b00346a5829e8652df73b0cbc58
Submitter: Jenkins
Branch:    stable/16.04

commit 6956376e65095b00346a5829e8652df73b0cbc58
Author: James Page <james.page at ubuntu.com>
Date:   Wed May 18 17:43:51 2016 +0100

    Resync stable charm-helpers
    
    Avoid use of 'service --status-all' which is currently
    broken on trusty for upstart managed daemons; the change
    moves to detecting how the daemon is managed, and then
    using upstart status XXX or the return code of service XXX
    status to determine whether a process is running.
    
    Fixes for IPv6 network address detection under Ubuntu
    16.04 which changes the output format of the ip commands
    slightly.
    
    Update the version map to include 8.1.x as a Neutron
    version for Mitaka.
    
    Change-Id: Ia7c03c9f38468326718f21db0aed9ad157ae1bed
    Closes-Bug: 1581171
    Closes-Bug: 1581598
    Closes-Bug: 1580674

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https://bugs.launchpad.net/bugs/1581171

Title:
  pause/resume failing (workload status races)

Status in ceilometer-agent package in Juju Charms Collection:
  Fix Committed
Status in cinder package in Juju Charms Collection:
  Fix Committed
Status in glance package in Juju Charms Collection:
  Fix Committed
Status in keystone package in Juju Charms Collection:
  Fix Committed

Bug description:
  Cinder, keystone, glance, swift-proxy are failing pause/resume amulet
  full tests @ master as of May 10-13+, whereas they were all passing
  prior.

  To date, I've only observed this failure on Trusty targets (ie.
  upstart).  I've not pinned this to any one cause, though it could be
  an init/image revision, or an existing race that is simply exacerbated
  by slower performance during higher load.

  ## Timing observation in one repro, cinder at master
  20:11:38 Test issues pause action
  20:11:49 Test declares failure (based on juju action fetch returning non-zero).
  20:12:22 Services on units get SIGTERM

  ## Juju status
  Shows the charm has declared itself not-paused successfully, which is what the Amulet test goes by:
  http://pastebin.ubuntu.com/16380414/

  
  === original bug description ===
  cinder at master amulet test often fails the pause action test

  Observed and reproduced on trusty-liberty, trusty-mitaka test combos.

  ## Unit status
  cinder/0          blocked        idle        1.25.5  1                10.5.1.105     Services should be paused but these services running: cinder-api, cinder-volume, cinder-scheduler, Paused. Use 'resume' action to resume normal service.

  ## Amulet failure (trusty-mitaka, cinder at master 2016 May 12)
  2016-05-12 18:11:56,004 test_910_pause_and_resume DEBUG: Checking pause and resume actions...
  Running command: juju action do --format=json cinder/0 pause

  Traceback (most recent call last):
    File "/tmp/bundletester-QVbeQC/cinder/tests/gate-basic-trusty-mitaka", line 11, in <module>
      deployment.run_tests()
    File "/tmp/bundletester-QVbeQC/cinder/tests/charmhelpers/contrib/amulet/deployment.py", line 95, in run_tests
      getattr(self, test)()
    File "/tmp/bundletester-QVbeQC/cinder/tests/basic_deployment.py", line 773, in test_910_pause_and_resume
      assert self._wait_on_action(action_id), "Pause action failed."
  AssertionError: Pause action failed.

  PASS: 1 ERROR: 1 Total: 2 (869.865811 sec)

  ## Juju status
  http://pastebin.ubuntu.com/16380414/

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