Fix loadbalancer manifest to be able to apply.

There were two outstanding errors preventing us from applying this
manifest:
- It was assuming you always have a non-loopback network interface
configured to use IPv6
- It was assuming the service rsyslog was already defined

Our patch fixed these two problems allowing you to apply the script.

Change-Id: Ie2c2d6ec9740a1d57b0b82e431ad2161c2940a80
Co-Authored-By: Bruno Tavares <btavare@thoughtworks.com>
Co-Authored-By: Danilo Ramalho <dramalho@thoughtworks.com>

manifests/lb.pp

@@ -48,6 +48,7 @@ class cgit::lb (
       'stats'   => 'socket /var/lib/haproxy/stats user root group root mode 0600 level admin'
     },
   }
+
   # The three listen defines here are what the world will hit.
   $haproxy_addresses = delete_undef_values([$::ipaddress, $::ipaddress6])
 
@@ -109,6 +110,13 @@ class cgit::lb (
     options           => 'maxqueue 512',
   }
 
+  if (!defined(Service['rsyslog'])) {
+    service { 'rsyslog':
+      ensure => running,
+      enable => true,
+    }
+  }
+
   file { '/etc/rsyslog.d/haproxy.conf':
     ensure => present,
     owner  => 'root',