Add manage_package to RBD backend

Ability to not manage the ceph-common package by setting
this to false (Default: true)

Change-Id: I1f51d9ed3f4862f2c0e357cb86e7469333c2c208

manifests/backend/rbd.pp

@@ -107,6 +107,10 @@
 #   with volume_backend_name=$volume_backend_name key/value.
 #   Defaults to false.
 #
+# [*manage_package*]
+#   (optional) Ensures ceph client package is installed if true.
+#   Defaults to: true
+#
 # [*extra_options*]
 #   (optional) Hash of extra options to pass to the backend stanza
 #   Defaults to: {}
@@ -136,6 +140,7 @@ define cinder::backend::rbd (
   $deferred_deletion_purge_interval  = $facts['os_service_default'],
   $rbd_concurrent_flatten_operations = $facts['os_service_default'],
   Boolean $manage_volume_type        = false,
+  Boolean $manage_package            = true,
   Hash $extra_options                = {},
 ) {
 
@@ -190,10 +195,12 @@ define cinder::backend::rbd (
     }
   }
 
+  if $manage_package {
     ensure_packages( 'ceph-common', {
       ensure => present,
       name   => $::cinder::params::ceph_common_package_name,
       tag    => 'cinder-support-package'})
+  }
 
   create_resources('cinder_config', $extra_options)
 }

releasenotes/notes/add-manage_package-to-rbd-backend-ce4239485895cbd1.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Added ``manage_package`` parameter to RBD backend to not install ceph-common
+    if set to false. (Default: true)

spec/defines/cinder_backend_rbd_spec.rb

@@ -136,6 +136,15 @@ describe 'cinder::backend::rbd' do
           :properties => ['volume_backend_name=rbd-ssd']
         )}
       end
+      context 'rbd backend without managing package' do
+        before do
+          params.merge!( :manage_package => false )
+        end
+
+        it {
+          is_expected.to_not contain_package('ceph-common')
+        }
+      end
     end
   end