Add randomize_allocation_candidates param

Adds the randomize_allocation_candidates parameter
in the placement section.

Change-Id: I585da30513b17aab823035bb796373d78b52f5f4

manifests/init.pp

@@ -11,10 +11,16 @@
 # [*sync_db*]
 #   (Optional) Run db sync on the node.
 #   Defaults to true
-
+#
+# [*randomize_allocation_candidates*]
+#   (Optional) Randomize the results of the returned
+#   allocation candidates.
+#   Defaults to $::os_service_default
+#
 class placement(
   $ensure_package                  = 'present',
   $sync_db                         = true,
+  $randomize_allocation_candidates = $::os_service_default,
 ) inherits placement::params {
 
   include ::placement::deps
@@ -36,4 +42,7 @@ class placement(
     tag     => ['openstack', 'placement-package'],
   }
 
+  placement_config {
+    'placement/randomize_allocation_candidates': value => $randomize_allocation_candidates;
+  }
 }

releasenotes/notes/add-randomize_allocation_candidates-8421343af6c5f452.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Added placement::randomize_allocation_candidates parameter.

spec/classes/placement_init_spec.rb

@@ -20,6 +20,8 @@ describe 'placement' do
         :require => 'Package[python-placement]',
         :tag     => ['openstack', 'placement-package'],
       )}
+
+      it { should contain_placement_config('placement/randomize_allocation_candidates').with_value('<SERVICE DEFAULT>') }
     end
 
     context 'with overridden parameters' do
@@ -27,6 +29,7 @@ describe 'placement' do
         {
           :ensure_package                  => 'absent',
           :sync_db                         => false,
+          :randomize_allocation_candidates => true,
         }
       end
 
@@ -47,6 +50,8 @@ describe 'placement' do
         :require => 'Package[python-placement]',
         :tag     => ['openstack', 'placement-package'],
       )}
+
+      it { should contain_placement_config('placement/randomize_allocation_candidates').with_value(true) }
     end
   end