arpwatch: Added support for defining interface to listen.

arpwatch/manifests/init.pp

@@ -1,15 +1,31 @@
 
 # Install arpwatch daemon
 #
-class arpwatch {
+# === Parameters
+#
+#     $interface:
+#         Network interface to monitor.
+#
+class arpwatch($interface) {
 
     package { "arpwatch":
         ensure => installed,
     }
 
+    file { "/etc/sysconfig/arpwatch":
+        ensure  => present,
+        content => template("arpwatch/arpwatch.sysconfig.erb"),
+        mode    => "0644",
+        owner   => "root",
+        group   => "root",
+        require => Package["arpwatch"],
+        notify  => Service["arpwatch"],
+    }
+
     service { "arpwatch":
         ensure    => running,
         enable    => true,
+        hasstatus => true,
         require   => Package["arpwatch"],
     }
 

arpwatch/templates/arpwatch.sysconfig.erb

@@ -0,0 +1,4 @@
+# -u <username> : defines with what user id arpwatch should run
+# -e <email>    : the <email> where to send the reports
+# -s <from>     : the <from>-address 
+OPTIONS="-u arpwatch -e root -i <%= @interface %> -s 'root (Arpwatch)'"