Add support for the state_path parameter

Change-Id: I42506c1c4395f547691b7d527329ffefd6bea3d9

manifests/init.pp

@@ -12,6 +12,10 @@
 #   (Optional) Run db sync on the node.
 #   Defaults to true
 #
+# [*state_path*]
+#   (optional) Directory for storing state.
+#   Defaults to $::os_service_default
+#
 # [*randomize_allocation_candidates*]
 #   (Optional) Randomize the results of the returned
 #   allocation candidates.
@@ -25,6 +29,7 @@
 class placement(
   $ensure_package                  = 'present',
   $sync_db                         = true,
+  $state_path                      = $::os_service_default,
   $randomize_allocation_candidates = $::os_service_default,
   $allocation_conflict_retry_count = $::os_service_default,
 ) inherits placement::params {
@@ -49,6 +54,7 @@ class placement(
   }
 
   placement_config {
+    'DEFAULT/state_path'                       : value => $state_path;
     'placement/randomize_allocation_candidates': value => $randomize_allocation_candidates;
     'placement/allocation_conflict_retry_count': value => $allocation_conflict_retry_count;
   }

releasenotes/notes/state_path-d656b10e4ad97f39.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The new ``placemaner::state_path`` parameter has been added to specify
+    the directory for storing state.

spec/classes/placement_init_spec.rb

@@ -30,6 +30,7 @@ describe 'placement' do
         {
           :ensure_package                  => 'absent',
           :sync_db                         => false,
+          :state_path                      => '/var/lib/placement',
           :randomize_allocation_candidates => true,
           :allocation_conflict_retry_count => 10,
         }
@@ -53,6 +54,7 @@ describe 'placement' do
         :tag     => ['openstack', 'placement-package'],
       )}
 
+      it { should contain_placement_config('DEFAULT/state_path').with_value('/var/lib/placement') }
       it { should contain_placement_config('placement/randomize_allocation_candidates').with_value(true) }
       it { should contain_placement_config('placement/allocation_conflict_retry_count').with_value(10) }
     end