Updated register_listener endpoint URL in config.yml.exmplate to use web service.

registry/config.yml.exmplate

@@ -35,7 +35,7 @@ notifications:
   endpoints:
     - name: register_listener
       disabled: false
-      url: http://app:9000/registry/v2/event/
+      url: http://web:80/registry/v2/event/
       headers:
         Authorization: [token_for_notifications]
       timeout: 1s