change vtn onos app container from bridged to host networking
diff --git a/xos/tosca/samples/vtn.yaml b/xos/tosca/samples/vtn.yaml
index 38db047..4683b70 100644
--- a/xos/tosca/samples/vtn.yaml
+++ b/xos/tosca/samples/vtn.yaml
@@ -56,7 +56,7 @@
               node: docker-onos
               relationship: tosca.relationships.UsesImage
       properties:
-          network: bridged
+          network: host
           default_isolation: container
 
     # Virtual machines