Add a fact to get the name of the libvirt daemon

The name of the libvirt daemon is not the same between MOS 6.1 and MOS
7.0. So we need a fact to know which name is used.

Change-Id: I92f1df73d66b400d3496c6201e96c29a30d208f5
Closes-Bug: #1488517

deployment_scripts/puppet/modules/lma_collector/lib/facter/libvirt_daemon.rb

@@ -0,0 +1,24 @@
+#    Copyright 2015 Mirantis, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#
+Facter.add('libvirt_daemon') do
+    setcode do
+      if File.exists? '/etc/init.d/libvirt-bin'
+        # It is the case for Ubuntu on MOS 6.1
+        'libvirt-bin'
+      else
+        'libvirtd'
+      end
+    end
+end

deployment_scripts/puppet/modules/lma_collector/manifests/logs/libvirt.pp

@@ -22,10 +22,7 @@ class lma_collector::logs::libvirt {
   $libvirt_log       = 'libvirtd.log'
   $libvirt_hooks_dir = '/etc/libvirt/hooks'
   $libvirt_hook      = "${libvirt_hooks_dir}/daemon"
-  $libvirt_service   = $::osfamily ? {
-    'debian' => 'libvirt-bin',
-    default  => 'libvirtd'
-  }
+  $libvirt_service   = $::libvirt_daemon
 
   service {$libvirt_service: }