Add $package_ensure to glance::backend::rbd

Previously for the python-ceph package ensure was hard coded to 'present', but
in some circumstances we want to set the ensure value same as for the glance
package itself.  This adds that in.

Change-Id: Ib5fc0b3d916eef93c810b0ee3fcecf0d9b80218e

manifests/backend/rbd.pp

@@ -12,6 +12,12 @@
 #
 #  $show_image_direct_url - Optional. Enables direct COW from glance to rbd
 #  DEPRECATED, use show_image_direct_url in glance::api
+#
+#  [*package_ensure*]
+#      (optional) Desired ensure state of packages.
+#      accepts latest or specific versions.
+#      Defaults to present.
+#
 
 class glance::backend::rbd(
   $rbd_store_user         = undef,
@@ -19,6 +25,7 @@ class glance::backend::rbd(
   $rbd_store_pool         = 'images',
   $rbd_store_chunk_size   = '8',
   $show_image_direct_url  = undef,
+  $package_ensure         = 'present',
 ) {
   include glance::params
 
@@ -35,7 +42,7 @@ class glance::backend::rbd(
   }
 
   package { 'python-ceph':
-    ensure => 'present',
+    ensure => $package_ensure,
     name   => $::glance::params::pyceph_package_name,
   }
 

spec/classes/glance_backend_rbd_spec.rb

@@ -31,9 +31,15 @@ describe 'glance::backend::rbd' do
       {
         :rbd_store_user        => 'user',
         :rbd_store_chunk_size  => '2',
+        :package_ensure        => 'latest',
       }
     end
     it { should contain_glance_api_config('DEFAULT/rbd_store_user').with_value('user') }
     it { should contain_glance_api_config('DEFAULT/rbd_store_chunk_size').with_value('2') }
+    it { should contain_package('python-ceph').with(
+        :name   => 'python-ceph',
+        :ensure => 'latest'
+      )
+    }
   end
 end