parametrized hostnames for cluster setups
diff --git a/reclass/storage/system/openstack_billing_single.yml b/reclass/storage/system/openstack_billing_single.yml
index c0e05c4..5b63ec0 100644
--- a/reclass/storage/system/openstack_billing_single.yml
+++ b/reclass/storage/system/openstack_billing_single.yml
@@ -1,9 +1,11 @@
 parameters:
+  _param:
+    openstack_billing_hostname: bil01
   reclass:
     storage:
       node:
         opencontrail_billing_node01:
-          name: bil01
+          name: ${_param:openstack_billing_hostname}
           domain: ${_param:cluster_domain}
           classes:
           - cluster.${_param:cluster_name}.openstack.billing