Add the enable_new_services option to nova::conductor

Adds the enable_new_services parameter to the
nova::conductor class. When a new nova services
is started the conductor will create the services.
If enable_new_services is set to False it will set
them to disabled when they are added.

Default value for the enable_new_services option
is True which is the default in the nova code.

Change-Id: I91bfc7a04071025a58629641b5da4f8347cfc133

manifests/conductor.pp

@@ -20,6 +20,13 @@
 #   (optional) Number of workers for OpenStack Conductor service
 #   Defaults to undef (i.e. parameter will not be present)
 #
+# [*enable_new_services*]
+#   (optional) When a new service (for example "nova-compute") start up, it gets
+#   registered in the database as an enabled service. Setting this to false will
+#   cause new services to be disabled when added. This config option is only used
+#   by the conductor service which is responsible for creating the service entries.
+#   Defaults to $::os_service_default
+#
 # DEPRECATED PARAMETERS
 #
 # [*use_local*]
@@ -27,12 +34,13 @@
 #   Defaults to undef
 #
 class nova::conductor(
-  $enabled        = true,
-  $manage_service = true,
-  $ensure_package = 'present',
-  $workers        = undef,
+  $enabled             = true,
+  $manage_service      = true,
+  $ensure_package      = 'present',
+  $workers             = undef,
+  $enable_new_services = $::os_service_default,
   # DEPREACTED PARAMETERS
-  $use_local      = undef,
+  $use_local           = undef,
 ) {
 
   if $use_local {
@@ -56,4 +64,8 @@ class nova::conductor(
       'conductor/workers': value => $workers;
     }
   }
+
+  nova_config {
+    'DEFAULT/enable_new_services': value => $enable_new_services
+  }
 }

releasenotes/notes/add_enable_new_services_parameter-0174ea25ea8b5de7.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Adds the enable_new_services config parameter to nova conductor

spec/classes/nova_conductor_spec.rb

@@ -46,6 +46,18 @@ describe 'nova::conductor' do
       it { is_expected.to contain_nova_config('conductor/workers').with_value('5') }
     end
 
+    context 'with default enable_new_services parameter' do
+      it { is_expected.to contain_nova_config('DEFAULT/enable_new_services').with_value('<SERVICE DEFAULT>') }
+    end
+
+    context 'with enable_new_services parameter set to false' do
+      let :params do
+        { :enable_new_services => false }
+      end
+
+      it { is_expected.to contain_nova_config('DEFAULT/enable_new_services').with_value(false) }
+    end
+
     context 'with default database parameters' do
       let :pre_condition do
         "include nova"