We have two controllers as HA in our OpenStack environment.
There are watcher-applier and watcher-decision-engine in each
controller. So there are two same name in the services table.
In this case, the objects.Service.get_by_name(context, name)
will trigger exception of MultipleResultsFound.
We should use objects.Service.get(context, id) replace of
objects.Service.get_by_name(context, name).
Change-Id: Ic3ce784590d6c2a648cb3b28299744deed281332
Closes-Bug: #1674196
This patch set adds supervisor mechanism for Watcher services
to get ability to track states.
Partially-Implements: blueprint watcher-service-list
Change-Id: Iab1cefb971c79ed27b22b6a5d1bed8698e35f9a4
