Expose parameter to customize [oslo_messaging_notifications] retry

The parameter has been managed by puppet-oslo, but its value could not
be set via this module.

Change-Id: Iee6a97e665d4a830bad6a572142ed7bb3ec3afd2

manifests/init.pp

@@ -146,6 +146,11 @@
 #   (optional) AMQP topic used for OpenStack notifications
 #   Defaults to $facts['os_service_default']
 #
+# [*notification_retry*]
+#   (Optional) The maximum number of attempts to re-sent a notification
+#   message, which failed to be delivered due to a recoverable error.
+#   Defaults to $facts['os_service_default'].
+#
 # [*topic*]
 #   Messaging topic for controller-worker RPC communication.
 #   Defaults to 'octavia-rpc'
@@ -184,6 +189,7 @@ class octavia (
   $notification_transport_url         = $facts['os_service_default'],
   $notification_driver                = $facts['os_service_default'],
   $notification_topics                = $facts['os_service_default'],
+  $notification_retry                 = $facts['os_service_default'],
   $topic                              = 'octavia-rpc',
   Boolean $purge_config               = false,
 ) inherits octavia::params {
@@ -235,6 +241,7 @@ class octavia (
     transport_url => $notification_transport_url,
     driver        => $notification_driver,
     topics        => $notification_topics,
+    retry         => $notification_retry,
   }
 
   # This isn't really an oslo_messaging configuration, but an octavia specific configuration item

releasenotes/notes/notification-retry-9c8c2a29fcc18867.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``octavia::notification_retry`` parameter has been added.

spec/classes/octavia_init_spec.rb

@@ -60,6 +60,7 @@ describe 'octavia' do
           :transport_url => '<SERVICE DEFAULT>',
           :driver        => '<SERVICE DEFAULT>',
           :topics        => '<SERVICE DEFAULT>',
+          :retry         => '<SERVICE DEFAULT>',
         )
       end
     end
@@ -94,6 +95,7 @@ describe 'octavia' do
           :notification_transport_url         => 'rabbit://rabbit_user:password@localhost:5673',
           :notification_driver                => 'ceilometer.compute.octavia_notifier',
           :notification_topics                => 'openstack',
+          :notification_retry                 => 10,
           :topic                              => 'oct-rpc',
         }
       end
@@ -131,6 +133,7 @@ describe 'octavia' do
           :transport_url => 'rabbit://rabbit_user:password@localhost:5673',
           :driver        => 'ceilometer.compute.octavia_notifier',
           :topics        => 'openstack',
+          :retry         => 10,
         )
       end