Ensure dbus is running before starting libvirt

Customer backport

Related to #330

manifests/compute/hypervisor.pp

@@ -102,6 +102,14 @@ Host *
 
   }
 
+  if $::operatingsystem == 'Ubuntu' {
+    service { 'dbus':
+      ensure => running,
+      enable => true,
+      before => Class['nova::compute::libvirt'],
+    }
+  }
+
   Service<| title == 'dbus' |> { enable => true }
   Service<| title == 'libvirt-bin' |> { enable => true }
 

spec/classes/cloud_compute_hypervisor_spec.rb

@@ -248,6 +248,22 @@ describe 'cloud::compute::hypervisor' do
       should contain_nova_config('DEFAULT/live_migration_flag').with('value' => 'VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE,VIR_MIGRATE_PERSIST_DEST')
     end
 
+    context 'with dbus on Ubuntu' do
+      let :facts do
+        { :osfamily        => 'Debian',
+          :operatingsystem => 'Ubuntu',
+          :concat_basedir  => '/var/lib/puppet/concat'
+        }
+      end
+
+      it 'ensure dbus is running and started at boot' do
+        should contain_service('dbus').with(
+          :ensure => 'running',
+          :enable => 'true'
+        )
+      end
+    end
+
     context 'without RBD backend' do
       before :each do
         params.merge!( :has_ceph => false )
@@ -270,6 +286,7 @@ describe 'cloud::compute::hypervisor' do
   context 'on Debian platforms' do
     let :facts do
       { :osfamily        => 'Debian',
+        :operatingsystem => 'Debian',
         :concat_basedir  => '/var/lib/puppet/concat'
       }
     end