The amqp_auto_delete option needs this patch: https://review.opendev.org/c/openstack/puppet-oslo/+/944132 Since transient_queues_ttl is also managed by oslo::messaging::rabbit, there's no way to use ceilometer_config to set it, so this patch is mandatory for one to set rabbit_transient_queues_ttl in ceilometer.conf. Change-Id: I72e08e90e55afab4a76c9b80365164af5c54b14c