Support to inject external bridge into k8s node for external routing

1. Add group bucket related rules on receiving endpoint events
   rather than POD events.

Change-Id: I1152343cf8ff6bbccaed3dc34908a3affbc70980
diff --git a/apps/k8s-node/app/src/test/java/org/onosproject/k8snode/web/K8sNodeWebResourceTest.java b/apps/k8s-node/app/src/test/java/org/onosproject/k8snode/web/K8sNodeWebResourceTest.java
index 90f7d0d..207bd0e 100644
--- a/apps/k8s-node/app/src/test/java/org/onosproject/k8snode/web/K8sNodeWebResourceTest.java
+++ b/apps/k8s-node/app/src/test/java/org/onosproject/k8snode/web/K8sNodeWebResourceTest.java
@@ -94,6 +94,7 @@
                 .dataIp(IpAddress.valueOf("10.134.34.222"))
                 .managementIp(IpAddress.valueOf("10.134.231.30"))
                 .intgBridge(DeviceId.deviceId("of:00000000000000a1"))
+                .extBridge(DeviceId.deviceId("of:00000000000000b1"))
                 .state(K8sNodeState.INIT)
                 .build();