CORD-1008 Dockerfile and docker-compose for vtn synchronizer

Change-Id: Ia6624c199624fcb9d497da1326220353c5d2614b
diff --git a/xos/synchronizer/steps/sync_vtn_service.py b/xos/synchronizer/steps/sync_vtn_service.py
index 44e29d7..6db26f8 100644
--- a/xos/synchronizer/steps/sync_vtn_service.py
+++ b/xos/synchronizer/steps/sync_vtn_service.py
@@ -212,7 +212,7 @@
                     logger.error("Received error from vtn service (%d)" % r.status_code)
 
     def call(self, **args):
-        vtn_service = VTNService.get_service_objects().all()
+        vtn_service = VTNService.objects.all()
         if not vtn_service:
             raise Exception("No VTN Service")