dns: Disable IPv6 in named when host has no IPv6 address

dns/manifests/init.pp

@@ -78,6 +78,39 @@ class dns::server {
         }
     }
 
+    if ! $::ipaddress6 {
+        $options = $::operatingsystem ? {
+            "debian" => "-u bind -4",
+            "ubuntu" => "-u bind -4",
+            default  => "-4",
+        }
+    } else {
+        $options = $::operatingsystem ? {
+            "debian" => "-u bind",
+            "ubuntu" => "-u bind",
+            default  => "",
+        }
+    }
+
+    case $::operatingsystem {
+        "debian", "ubuntu": {
+            augeas { "set-named-default":
+                context => "/files/etc/default/named",
+                changes => [ "set OPTIONS '${options}'",
+                notify  => Service["named"],
+                require => Package["bind"],
+            }
+        }
+        "fedora","centos","redhat": {
+            augeas { "set-named-sysconfig":
+                context => "/files/etc/sysconfi/named",
+                changes => [ "set OPTIONS '${options}'",
+                notify  => Service["named"],
+                require => Package["bind"],
+            }
+        }
+    }
+
     file { "${chroot}${rndckey}":
         ensure  => present,
         mode    => "0640",
@@ -130,7 +163,7 @@ class dns::server {
             default   => undef,
         },
         start   => $::operatingsystem ? {
-            "openbsd" => "/usr/sbin/named",
+            "openbsd" => "/usr/sbin/named ${options}",
             default   => undef,
         },
     }