Add a rabbit_transient_queues_ttl and amqp_auto_delete params

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 octavia_config to set it, so this patch is
mandatory for one to set rabbit_transient_queues_ttl in octavia.conf.

Change-Id: I676917dce07b6490cb34eba876be48a67194dea0

manifests/init.pp

@@ -63,6 +63,14 @@
 #   (Optional) Use quorum queues for transients queues in RabbitMQ.
 #   Defaults to $facts['os_service_default']
 #
+# [*rabbit_transient_queues_ttl*]
+#   (Optional) Positive integer representing duration in seconds for
+#   queue TTL (x-expires). Queues which are unused for the duration
+#   of the TTL are automatically deleted.
+#   The parameter affects only reply and fanout queues. (integer value)
+#   Min to 1
+#   Defaults to $facts['os_service_default']
+#
 # [*rabbit_quorum_delivery_limit*]
 #   (Optional) Each time a message is rdelivered to a consumer, a counter is
 #   incremented. Once the redelivery count exceeds the delivery limit
@@ -117,6 +125,10 @@
 #   (string value)
 #   Defaults to $facts['os_service_default']
 #
+# [*amqp_auto_delete*]
+#   (Optional) Define if transient queues should be auto-deleted (boolean value)
+#   Defaults to $facts['os_service_default']
+#
 # [*amqp_durable_queues*]
 #   (optional) Define queues as "durable" to rabbitmq.
 #   Defaults to $facts['os_service_default']
@@ -174,6 +186,7 @@ class octavia (
   $rabbit_qos_prefetch_count          = $facts['os_service_default'],
   $rabbit_quorum_queue                = $facts['os_service_default'],
   $rabbit_transient_quorum_queue      = $facts['os_service_default'],
+  $rabbit_transient_queues_ttl        = $facts['os_service_default'],
   $rabbit_quorum_delivery_limit       = $facts['os_service_default'],
   $rabbit_quorum_max_memory_length    = $facts['os_service_default'],
   $rabbit_quorum_max_memory_bytes     = $facts['os_service_default'],
@@ -187,6 +200,7 @@ class octavia (
   $kombu_failover_strategy            = $facts['os_service_default'],
   $kombu_compression                  = $facts['os_service_default'],
   $amqp_durable_queues                = $facts['os_service_default'],
+  $amqp_auto_delete                   = $facts['os_service_default'],
   $notification_transport_url         = $facts['os_service_default'],
   $notification_driver                = $facts['os_service_default'],
   $notification_topics                = $facts['os_service_default'],
@@ -225,8 +239,10 @@ class octavia (
     kombu_ssl_ca_certs              => $kombu_ssl_ca_certs,
     kombu_compression               => $kombu_compression,
     amqp_durable_queues             => $amqp_durable_queues,
+    amqp_auto_delete                => $amqp_auto_delete,
     rabbit_quorum_queue             => $rabbit_quorum_queue,
     rabbit_transient_quorum_queue   => $rabbit_transient_quorum_queue,
+    rabbit_transient_queues_ttl     => $rabbit_transient_queues_ttl,
     rabbit_quorum_delivery_limit    => $rabbit_quorum_delivery_limit,
     rabbit_quorum_max_memory_length => $rabbit_quorum_max_memory_length,
     rabbit_quorum_max_memory_bytes  => $rabbit_quorum_max_memory_bytes,

releasenotes/notes/amqp_auto_delete-2a8027b3f6ca4bc6.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add a new ``amqp_auto_delete`` parameter, so that transient queues are
+    automatically deleted.

releasenotes/notes/rabbit_transient_queues_ttl-e128789222dee23c.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    A new parameter ``rabbit_transient_queues_ttl`` has been added to the
+    octavia class to configure how long transient queue should stay until
+    they are automatically deleted.

spec/classes/octavia_init_spec.rb

@@ -49,8 +49,10 @@ describe 'octavia' do
           :kombu_ssl_ca_certs              => '<SERVICE DEFAULT>',
           :kombu_compression               => '<SERVICE DEFAULT>',
           :amqp_durable_queues             => '<SERVICE DEFAULT>',
+          :amqp_auto_delete                => '<SERVICE DEFAULT>',
           :rabbit_quorum_queue             => '<SERVICE DEFAULT>',
           :rabbit_transient_quorum_queue   => '<SERVICE DEFAULT>',
+          :rabbit_transient_queues_ttl     => '<SERVICE DEFAULT>',
           :rabbit_quorum_delivery_limit    => '<SERVICE DEFAULT>',
           :rabbit_quorum_max_memory_length => '<SERVICE DEFAULT>',
           :rabbit_quorum_max_memory_bytes  => '<SERVICE DEFAULT>',
@@ -83,6 +85,7 @@ describe 'octavia' do
           :rabbit_qos_prefetch_count          => 0,
           :rabbit_quorum_queue                => true,
           :rabbit_transient_quorum_queue      => true,
+          :rabbit_transient_queues_ttl        => 60,
           :rabbit_quorum_delivery_limit       => 3,
           :rabbit_quorum_max_memory_length    => 5,
           :rabbit_quorum_max_memory_bytes     => 1073741824,
@@ -91,6 +94,7 @@ describe 'octavia' do
           :kombu_reconnect_delay              => '5.0',
           :kombu_failover_strategy            => 'shuffle',
           :amqp_durable_queues                => true,
+          :amqp_auto_delete                   => true,
           :package_ensure                     => '2012.1.1-15.el6',
           :notification_transport_url         => 'rabbit://rabbit_user:password@localhost:5673',
           :notification_driver                => 'ceilometer.compute.octavia_notifier',
@@ -122,8 +126,10 @@ describe 'octavia' do
           :kombu_ssl_ca_certs              => '<SERVICE DEFAULT>',
           :kombu_compression               => 'gzip',
           :amqp_durable_queues             => true,
+          :amqp_auto_delete                => true,
           :rabbit_quorum_queue             => true,
           :rabbit_transient_quorum_queue   => true,
+          :rabbit_transient_queues_ttl     => 60,
           :rabbit_quorum_delivery_limit    => 3,
           :rabbit_quorum_max_memory_length => 5,
           :rabbit_quorum_max_memory_bytes  => 1073741824,