Add control_exchange and option

Add control_exchange to configure an exchange name for message.

Change-Id: Ib9af4d5f01cbc4db011707f3f2ccac539db9b1e2

manifests/init.pp

@@ -67,6 +67,12 @@
 #   (Optional) Seconds to wait for a response from a call. (integer value)
 #   Defaults to $::os_service_default.
 #
+# [*control_exchange*]
+#   (Optional) The default exchange under which topics are scoped. May be
+#   overridden by an exchange name specified in the transport_url
+#   option.
+#   Defaults to $::os_service_default
+#
 # [*rpc_backend*]
 #   (optional) The rpc backend implementation to use, can be:
 #     rabbit (for rabbitmq)
@@ -447,6 +453,7 @@ class nova(
   $database_max_overflow                  = undef,
   $default_transport_url                  = $::os_service_default,
   $rpc_response_timeout                   = $::os_service_default,
+  $control_exchange                       = $::os_service_default,
   $rpc_backend                            = $::os_service_default,
   $image_service                          = 'nova.image.glance.GlanceImageService',
   # these glance params should be optional
@@ -732,6 +739,7 @@ but should be one of: ssh-rsa, ssh-dsa, ssh-ecdsa.")
   oslo::messaging::default { 'nova_config':
     transport_url        => $default_transport_url,
     rpc_response_timeout => $rpc_response_timeout,
+    control_exchange     => $control_exchange,
   }
 
   oslo::messaging::notifications { 'nova_config':

releasenotes/notes/add_messaging_default_parameters-51a35df791986123.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - Add new parameter "control_exchange", the default exchange under
+    which topics are scoped. May be overridden by an exchange name
+    specified in the transport_url option.

spec/classes/nova_init_spec.rb

@@ -61,6 +61,7 @@ describe 'nova' do
         is_expected.to contain_nova_config('os_vif_linux_bridge/use_ipv6').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_nova_config('DEFAULT/transport_url').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_nova_config('DEFAULT/rpc_response_timeout').with_value('<SERVICE DEFAULT>')
+        is_expected.to contain_nova_config('DEFAULT/control_exchange').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_nova_config('cinder/os_region_name').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_nova_config('cinder/catalog_info').with('value' => 'volumev2:cinderv2:publicURL')
         is_expected.to contain_nova_config('DEFAULT/cpu_allocation_ratio').with_value('<SERVICE DEFAULT>')
@@ -82,6 +83,7 @@ describe 'nova' do
           :image_service                           => 'nova.image.local.LocalImageService',
           :default_transport_url                   => 'rabbit://rabbit_user:password@localhost:5673',
           :rpc_response_timeout                    => '30',
+          :control_exchange                        => 'nova',
           :rpc_backend                             => 'rabbit',
           :rabbit_host                             => 'rabbit',
           :rabbit_userid                           => 'rabbit_user',
@@ -141,6 +143,8 @@ describe 'nova' do
       it 'configures rabbit' do
         is_expected.to contain_nova_config('DEFAULT/rpc_backend').with_value('rabbit')
         is_expected.to contain_nova_config('DEFAULT/transport_url').with_value('rabbit://rabbit_user:password@localhost:5673')
+        is_expected.to contain_nova_config('DEFAULT/rpc_response_timeout').with_value('30')
+        is_expected.to contain_nova_config('DEFAULT/control_exchange').with_value('nova')
         is_expected.to contain_nova_config('oslo_messaging_rabbit/rabbit_host').with_value('rabbit')
         is_expected.to contain_nova_config('oslo_messaging_rabbit/rabbit_password').with_value('password').with_secret(true)
         is_expected.to contain_nova_config('oslo_messaging_rabbit/rabbit_port').with_value('5673')