Public IP configurable

Change-Id: I5b5f1a846701326abbdc81295646d431c1ff62bf
diff --git a/local/config-samples/co1-config.json b/local/config-samples/co1-config.json
index 1a1b169..222832d 100644
--- a/local/config-samples/co1-config.json
+++ b/local/config-samples/co1-config.json
@@ -16,9 +16,7 @@
     },
     "org.opencord.ce.local.channel.http" : {
       "global" : {
-        "clusterIps" : [
-          "10.128.14.1"
-        ],
+        "publicIp" : "10.128.14.1",
         "port" : "8181",
         "username" : "sdn",
         "password" : "rocks",