Allow specification of nova-volume package version.

manifests/volume.pp

@@ -1,5 +1,6 @@
 class nova::volume(
-  $enabled=false
+  $enabled        = false,
+  $ensure_package = 'present',
 ) {
 
   include 'nova::params'
@@ -12,9 +13,10 @@ class nova::volume(
   }
 
   nova::generic_service { 'volume':
-    enabled      => $enabled,
-    package_name => $::nova::params::volume_package_name,
-    service_name => $::nova::params::volume_service_name,
+    enabled        => $enabled,
+    package_name   => $::nova::params::volume_package_name,
+    service_name   => $::nova::params::volume_service_name,
+    ensure_package => $ensure_package,
   }
 
   package { 'tgt':

spec/classes/nova_volume_spec.rb

@@ -53,6 +53,14 @@ describe 'nova::volume' do
         )}
       end
     end
+    describe 'with package version' do
+      let :params do
+        {:ensure_package => '2012.1-2'}
+      end
+      it { should contain_package('nova-volume').with(
+        'ensure' => '2012.1-2'
+      )}
+    end
   end
   describe 'on rhel' do
     let :facts do