postfix: file_line statt augeas

manifests/postfix.pp

 # Mailversand konfigurieren
 class ubuntu_server::postfix($root_emails,$relayhost = "mailer.gwdg.de") {
 
-
     package{['mailutils','postfix']:
         ensure => present,
     }
-    augeas{'postfix_cfg':
-        context => "/files/etc/postfix/main.cf",
-        changes => [
-            "rm relay_transport",
-            "rm default_transport",
-            "set relayhost $relayhost",
-        ],
+
+    file_line{'postfix_cfg_1':
+        path => "/files/etc/postfix/main.cf",
+        line => "relayhost $relayhost",
+        require => [ Package["mailutils"], Package["postfix"] ],
+    } ~> Service['postfix']
+
+    file_line{'postfix_cfg_2':
+        path => "/files/etc/postfix/main.cf",
+        line => "default_transport = error",
+        match => "(relay|default)_transport",
+        match_for_absence => true,
         require => [ Package["mailutils"], Package["postfix"] ],
     } ~> Service['postfix']
+
     service{'postfix':
         ensure => running,
     }
+
     mailalias{'root':
         recipient => $root_emails,
     } ~> Exec["mail-alias-refresh"]
+
     exec { "mail-alias-refresh":
         path => $path,
         command => "newaliases",