Expose executor_thread_pool_size

This option has been supported by puppet-oslo but has not been
configurable.

Change-Id: If4ea3913c5ec9c3719d57b8b682a87816cbaabf7

manifests/init.pp

@@ -24,6 +24,10 @@
 #   (Optional) Configure the timeout (in seconds) for rpc responses
 #   Defaults to $facts['os_service_default'].
 #
+# [*executor_thread_pool_size*]
+#   (Optional) Size of executor thread pool when executor is threading or eventlet.
+#   Defaults to $facts['os_service_default'].
+#
 # [*rabbit_ha_queues*]
 #   (optional) Use HA queues in RabbitMQ (x-ha-policy: all).
 #   Defaults to $facts['os_service_default'].
@@ -253,6 +257,7 @@ class heat(
   $default_transport_url              = $facts['os_service_default'],
   $rpc_response_timeout               = $facts['os_service_default'],
   $control_exchange                   = $facts['os_service_default'],
+  $executor_thread_pool_size          = $facts['os_service_default'],
   $rabbit_ha_queues                   = $facts['os_service_default'],
   $rabbit_heartbeat_timeout_threshold = $facts['os_service_default'],
   $rabbit_heartbeat_rate              = $facts['os_service_default'],
@@ -404,6 +409,7 @@ class heat(
     transport_url             => $default_transport_url,
     rpc_response_timeout      => $rpc_response_timeout,
     control_exchange          => $control_exchange,
+    executor_thread_pool_size => $executor_thread_pool_size,
   }
 
   oslo::middleware { 'heat_config':

releasenotes/notes/executor_thread_pool_size-97e638d8731b2d30.yaml

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

spec/classes/heat_init_spec.rb

@@ -41,7 +41,7 @@ describe 'heat' do
     it_configures 'with SSL enabled without kombu'
     it_configures 'with SSL disabled'
     it_configures 'with enable_stack_adopt and enable_stack_abandon set'
-    it_configures 'with overridden transport_url parameter'
+    it_configures 'with overridden messaging default parameters'
     it_configures 'with notification_driver set to a string'
 
     context 'with amqp messaging' do
@@ -75,10 +75,13 @@ describe 'heat' do
       is_expected.to contain_heat_config('DEFAULT/host').with_value('<SERVICE DEFAULT>')
     end
 
-    it 'configures default transport_url' do
+    it 'configures default messaging default parameters' do
-      is_expected.to contain_heat_config('DEFAULT/transport_url').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_oslo__messaging__default('heat_config').with(
-      is_expected.to contain_heat_config('DEFAULT/rpc_response_timeout').with_value('<SERVICE DEFAULT>')
+        :transport_url             => '<SERVICE DEFAULT>',
-      is_expected.to contain_heat_config('DEFAULT/control_exchange').with_value('<SERVICE DEFAULT>')
+        :rpc_response_timeout      => '<SERVICE DEFAULT>',
+        :control_exchange          => '<SERVICE DEFAULT>',
+        :executor_thread_pool_size => '<SERVICE DEFAULT>',
+      )
     end
 
     it 'configures max_template_size' do
@@ -323,20 +326,22 @@ describe 'heat' do
     end
   end
 
-  shared_examples_for 'with overridden transport_url parameter' do
+  shared_examples_for 'with overridden messaging default parameters' do
     before do
       params.merge!(
         :default_transport_url     => 'rabbit://rabbit_user:password@localhost:5673',
-        :rpc_response_timeout  => '120',
+        :rpc_response_timeout      => 120,
         :control_exchange          => 'heat',
+        :executor_thread_pool_size => 64,
       )
     end
 
-    it 'configures transport_url' do
+    it 'configures messaging default parameters' do
       is_expected.to contain_oslo__messaging__default('heat_config').with(
         :transport_url             => 'rabbit://rabbit_user:password@localhost:5673',
-        :rpc_response_timeout => '120',
+        :rpc_response_timeout      => 120,
-        :control_exchange     => 'heat'
+        :control_exchange          => 'heat',
+        :executor_thread_pool_size => 64,
       )
     end
   end