Ceilometer API, Collector and Expirer are removed from upstream,
so lets clean these deprecated services.
Change-Id: Ifd28a3029cd39644833ab0e9fc66efb7b5b67c9d
This patch does 2 things:
* Configure messagingv2 as default driver for Oslo Notifications sent on
RPC.
* Allow users to choose between messagingv2 (default) and noop when we
want to disable notifications (for example, when Telemetry is disabled).
* Deprecate KeystoneNotificationDriver in favor of NotificationDriver.
Change-Id: Ia547d7f4bfb51e7c45246b097b48fd86da231bd3
Related-Bug: #1701357
This will be used in our HA OVB CI job where we currently are
failing due to running out of memory. Telemetry will still be
tested via scenarios, but this will free up a large chunk of
memory in the most memory intensive job.
Closes-Bug: 1693174
Change-Id: Idefe9f0de47c5b0f29b7326642d697ed179e2eb8