Handle munin_allow and nagios_allow variables as arrays

nagios/manifests/target.pp

@@ -179,10 +179,15 @@ define nagios::target::tcp($port, $description=undef) {
 
 # Configure nagios nrpe target.
 #
+#   === Global variables
+#
+#   $nagios_allow:
+#       Array of IP addresses allowed to connect to the nrpe service.
+#
 class nagios::target::nrpe inherits nagios::target {
 
     if !$nagios_allow {
-        $nagios_allow = "127.0.0.1"
+        $nagios_allow = [ "127.0.0.1" ]
     }
 
     include nagios::common
@@ -248,7 +253,7 @@ class nagios::target::nrpe inherits nagios::target {
             "openbsd" => "wheel",
             default   => "root",
         },
-        content => "allowed_hosts=${nagios_allow}\n",
+        content => inline_template("allowed_hosts=<%= @nagios_allow.join(',') %>\n"),
         require => File["/etc/nrpe.d"],
         notify  => Service["nrpe"],
     }