Issue 2471 - Update our Discourse instance

modules/base/manifests/init.pp

 class base ($zone='adblockplus.org') {
   stage {'pre': before => Stage['main']}
   stage {'post': require => Stage['main']}
 
   class {'users':
     stage => 'pre',
   }
 
-  class {'apt':
-    always_apt_update => true
+  if !defined(Class['apt']) {
+    class {'apt':
+      always_apt_update => true
+    }
   }
 
   Exec['apt_update'] -> Package <| |>
 
   include private::users, postfix, ssh
 
   package {['mercurial', 'vim', 'emacs', 'debian-goodies', 'htop']:
     ensure => present,
   }
 
@@ skipping 24 matching lines @@
   $servers = hiera('servers')
   create_resources(base::explicit_host_record, $servers)
 
   define explicit_host_record(
     $ip,
     $ssh_public_key = undef,
     $role           = undef,
     $dns            = undef,
     $groups         = undef,
   ) {
-    
+
     if is_array($ip) {
       $internal_ip = $ip[0]
     } else {
       $internal_ip = $ip
     }
 
     $fqdn_name = join([$name, $base::zone], '.')
-    
+
     host{$name:
       ensure => present,
       ip => $internal_ip,
       name => $fqdn_name,
       host_aliases => $dns ? {
         undef => [],
         default => $dns,
-      }  
+      }
     }
 
     if $ssh_public_key != undef {
 
       $name_key = $dns ? {
         undef => $fqdn_name,
         default => $dns,
       }
 
       @sshkey {$name:
         name => $name_key,
         key => $ssh_public_key,
         type => ssh-rsa,
         host_aliases => $ip,
       }
     }
 
   }
 }