enable quorum queues
This implements a global toggle `om_enable_rabbitmq_quorum_queues`
to enable quorum queues for each service in RabbitMQ, similar to
what was done for HA[0].
Quorum Queues are enabled by default.
Quorum queues are more reliable, safer, simpler and faster than
replicated mirrored classic queues[1].
Mirrored classic queues are deprecated and scheduled for removal
in RabbitMQ 4.0[2].
Notice, that we do not need a new policy in the RabbitMQ definitions
template, because their usage is enabled on the client side and can't
be set using a policy[3].
Notice also, that quorum queues are not yet enabled in oslo.messaging
for the usage of reply_ and fanout_ queues (transient queues).
This will change once[4] is merged.
[0]: https://review.opendev.org/c/openstack/kolla-ansible/+/867771
[1]: https://www.rabbitmq.com/quorum-queues.html
[2]: https://blog.rabbitmq.com/posts/2021/08/4.0-deprecation-announcements/
[3]: https://www.rabbitmq.com/quorum-queues.html#declaring
[4]: https://review.opendev.org/c/openstack/oslo.messaging/+/888479
Signed-off-by: Sven Kieske <kieske@osism.tech>
Change-Id: I6c033d460a5c9b93c346e9e47e93b159d3c27830
64575519aa