Kafka bind address puppet

bigtop-deploy/puppet/modules/kafka/manifests/init.pp

@@ -24,7 +24,8 @@
   class server(
       $broker_id = "0",
       $port = "9092",
-      $zookeeper_connection_string = "localhost:2181"
+      $zookeeper_connection_string = "localhost:2181",
+      $bind_addr = ""
     ) {
 
     package { 'kafka':

bigtop-deploy/puppet/modules/kafka/templates/server.properties

@@ -25,7 +25,11 @@ broker.id=<%= @broker_id %>
 port=<%= @port %>
 
 # Hostname the broker will bind to. If not set, the server will bind to all interfaces
+<% if !@bind_addr.nil? && !@bind_addr.empty? %>
+host.name=<%= @bind_addr %>
+<% else %>
 #host.name=localhost
+<% end %>
 
 # Hostname the broker will advertise to producers and consumers. If not set, it uses the
 # value for "host.name" if configured.  Otherwise, it will use the value returned from