ironic: Support options to distribute baremetal management

The ironic driver now provides a few options to distribute baremetal
node management among multilple nova-compute.

Change-Id: I7fbceb00422c2bd6ae7d594321fe09789fe0a3f3

manifests/ironic/common.pp

@@ -58,6 +58,16 @@
 #   (Optional) Timeout value for connecting to ironic in seconds.
 #   Defaults to $facts['os_service_default']
 #
+# [*conductor_group*]
+#   (Optional) Case-insensitive key to limit the set of the nodes that may be
+#   managed by this service to the set of nodes in Ironic which have a matching
+#   conductor_group property.
+#   Defaults to $facts['os_service_default']
+#
+# [*shard*]
+#   (Optional) Specify which ironic shared this nova-compute will manage.
+#   Defaults to $facts['os_service_default']
+#
 class nova::ironic::common (
   $auth_plugin          = 'password',
   $auth_url             = 'http://127.0.0.1:5000/',
@@ -74,6 +84,8 @@ class nova::ironic::common (
   $service_type         = $facts['os_service_default'],
   $valid_interfaces     = $facts['os_service_default'],
   $timeout              = $facts['os_service_default'],
+  $conductor_group      = $facts['os_service_default'],
+  $shard                = $facts['os_service_default'],
 ) {
 
   include nova::deps
@@ -102,6 +114,8 @@ class nova::ironic::common (
     'ironic/service_type':        value => $service_type;
     'ironic/valid_interfaces':    value => join(any2array($valid_interfaces), ',');
     'ironic/timeout':             value => $timeout;
+    'ironic/conductor_group':     value => $conductor_group;
+    'ironic/shard':               value => $shard;
   }
 
 }

releasenotes/notes/ironic-distribution-b36df55db3d952e5.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The ``conductor_group`` parameter and the ``shard`` parameter have been
+    added to the ``ironic::conductor`` class.

spec/classes/nova_ironic_common_spec.rb

@@ -19,8 +19,10 @@ describe 'nova::ironic::common' do
         is_expected.to contain_nova_config('ironic/user_domain_name').with_value('Default')
         is_expected.to contain_nova_config('ironic/project_domain_name').with_value('Default')
         is_expected.to contain_nova_config('ironic/service_type').with_value('<SERVICE DEFAULT>')
-        is_expected.to contain_nova_config('ironic/timeout').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_nova_config('ironic/valid_interfaces').with_value('<SERVICE DEFAULT>')
+        is_expected.to contain_nova_config('ironic/timeout').with_value('<SERVICE DEFAULT>')
+        is_expected.to contain_nova_config('ironic/conductor_group').with_value('<SERVICE DEFAULT>')
+        is_expected.to contain_nova_config('ironic/shard').with_value('<SERVICE DEFAULT>')
       end
     end
 
@@ -40,6 +42,8 @@ describe 'nova::ironic::common' do
           :service_type        => 'baremetal',
           :timeout             => 30,
           :valid_interfaces    => 'internal',
+          :conductor_group     => 'mygroup',
+          :shard               => 'myshard'
         }
       end
 
@@ -57,8 +61,10 @@ describe 'nova::ironic::common' do
         is_expected.to contain_nova_config('ironic/user_domain_name').with_value('custom_domain')
         is_expected.to contain_nova_config('ironic/project_domain_name').with_value('custom_domain')
         is_expected.to contain_nova_config('ironic/service_type').with_value('baremetal')
-        is_expected.to contain_nova_config('ironic/timeout').with_value(30)
         is_expected.to contain_nova_config('ironic/valid_interfaces').with_value('internal')
+        is_expected.to contain_nova_config('ironic/timeout').with_value(30)
+        is_expected.to contain_nova_config('ironic/conductor_group').with_value('mygroup')
+        is_expected.to contain_nova_config('ironic/shard').with_value('myshard')
       end
     end