We introduced nova compute restart to handle problems of it failure
to start when keystone is not available. However, now we get broken
again because stop_service fails when nova compute is not running.
This change makes it ignore failure to stop nova compute.
Also, if n-cpu failed to start the first time, the n-cpu.failure file
that
was created will fail the service_check function in the end
of the deployment, although n-cpu might be in fact up, running and
healthy.
Rename this file to `n-cpu.failure.before-restart-by-ironic` right after
stopping n-cpu so that it does not fail service_check later, but is
still
available for reference if needed.
Change-Id: Idfe7d68d6ebeb786fe9e6da6a001a0ee2e10a76b
Closes-Bug: #1546058
Related-Bug: #1537076
001513f423