parametrized hostnames for cluster setups
diff --git a/reclass/storage/system/opencontrail_control_cluster.yml b/reclass/storage/system/opencontrail_control_cluster.yml
index 0f882a3..a8d916e 100644
--- a/reclass/storage/system/opencontrail_control_cluster.yml
+++ b/reclass/storage/system/opencontrail_control_cluster.yml
@@ -1,9 +1,13 @@
 parameters:
+  _param:
+    opencontrail_control_node01_hostname: ntw01
+    opencontrail_control_node02_hostname: ntw02
+    opencontrail_control_node03_hostname: ntw03
   reclass:
     storage:
       node:
         opencontrail_control_node01:
-          name: ntw01
+          name: ${_param:opencontrail_control_node01_hostname}
           domain: ${_param:cluster_domain}
           classes:
           - cluster.${_param:cluster_name}.opencontrail.control
@@ -14,7 +18,7 @@
             keepalived_vip_priority: 103
             opencontrail_database_id: 1
         opencontrail_control_node02:
-          name: ntw02
+          name: ${_param:opencontrail_control_node02hostname}
           domain: ${_param:cluster_domain}
           classes:  
           - cluster.${_param:cluster_name}.opencontrail.control
@@ -25,7 +29,7 @@
             keepalived_vip_priority: 102
             opencontrail_database_id: 2
         opencontrail_control_node03:
-          name: ntw03
+          name: ${_param:opencontrail_control_node03_hostname}
           domain: ${_param:cluster_domain}
           classes:
           - cluster.${_param:cluster_name}.opencontrail.control