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authorEmilien Macchi <emilien@redhat.com>2015-12-10 16:23:50 -0500
committerEmilien Macchi <emilien@redhat.com>2015-12-10 21:01:04 -0500
commit676ec6ea6d7995266b8162c8caa89f72693eb929 (patch)
treefd7164fc79129399edb4d8b30f3bef9ef4f94c3e /environments
parent99bd9970d6bedee8228a6c8ff3d6f45aa1380e22 (diff)
pacemaker: run neutron-server-start-wait-stop only at step 4
neutron-server-start-wait-stop is a dangerous Exec that is exposed to race conditions, because it does not have "onlyif" or "unless" statements. That means during a deployment, this exec can be run in the wrong order during Step 5 and/or 6, while it was supposed to be run at Step 4 only. If that happens, the exec will fail because puppet tries to start neutron-server while Pacemaker already started the resource. So in that case, systemd would returns 1 to Puppet which would return 6 to the overcloud deployment and the deployment would fail to finish correctly. This patch aims to prevent from this scenario by making sure we run the exec only during the step 4. Also, in order to secure it a bit more, we add 'unless' statement to this exec, so we would make sure the Puppet run would be idempotent and the Exec would run one successful time only. https://bugzilla.redhat.com/show_bug.cgi?id=1290582 Change-Id: I42813c5cff6c525c15c9c24baad4e355f88af672
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