Expose executor_thread_pool_size

Adding configuration of the size of executor thread pool

Depends-on: https://review.openstack.org/#/c/630712/
Change-Id: Id4a61c39ef6392a3d656952467c756be9e68de91

manifests/init.pp

@@ -44,6 +44,10 @@
 #   class is explicitly requested.
 #   Defaults to $::os_service_default
 #
+# [*executor_thread_pool_size*]
+#   (optional) Size of executor thread pool when executor is threading or eventlet.
+#   Defaults to $::os_service_default.
+#
 # [*rpc_response_timeout*]
 #   (optional) Seconds to wait for a response from a call. (integer value)
 #   Defaults to $::os_service_default.
@@ -256,6 +260,7 @@ class ironic (
   $auth_strategy                      = 'keystone',
   $default_resource_class             = $::os_service_default,
   $control_exchange                   = $::os_service_default,
+  $executor_thread_pool_size          = $::os_service_default,
   $rpc_response_timeout               = $::os_service_default,
   $default_transport_url              = $::os_service_default,
   $rabbit_use_ssl                     = $::os_service_default,
@@ -341,9 +346,10 @@ class ironic (
   }
 
   oslo::messaging::default {'ironic_config':
-    transport_url        => $default_transport_url,
+    executor_thread_pool_size => $executor_thread_pool_size,
-    rpc_response_timeout => $rpc_response_timeout,
+    transport_url             => $default_transport_url,
-    control_exchange     => $control_exchange,
+    rpc_response_timeout      => $rpc_response_timeout,
+    control_exchange          => $control_exchange,
   }
 
   oslo::messaging::rabbit {'ironic_config':

releasenotes/notes/add_executor_thread_pool_size-d975cafddd385239.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Add possibility to configure the size of executor thread pool.

spec/classes/ironic_init_spec.rb

@@ -103,6 +103,7 @@ describe 'ironic' do
     it 'configures ironic.conf' do
       is_expected.to contain_ironic_config('DEFAULT/auth_strategy').with_value('keystone')
       is_expected.to contain_ironic_config('DEFAULT/my_ip').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_ironic_config('DEFAULT/executor_thread_pool_size').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_ironic_config('DEFAULT/rpc_response_timeout').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_ironic_config('DEFAULT/control_exchange').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_ironic_config('DEFAULT/transport_url').with_value('<SERVICE DEFAULT>').with_secret(true)