Initial support for multi kubernetes clusters for k8s nodes

Change-Id: I6ca132898f8e157e0583de38a637fdc135f21d6f
diff --git a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java
index 513d21a..c32f766 100644
--- a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java
+++ b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/Constants.java
@@ -26,10 +26,16 @@
     public static final String INTEGRATION_BRIDGE = "kbr-int";
     public static final String EXTERNAL_BRIDGE = "kbr-ex";
     public static final String LOCAL_BRIDGE = "kbr-local";
+    public static final String TUNNEL_BRIDGE = "kbr-tun";
+    public static final String EXTERNAL_ROUTER = "kbr-router";
     public static final String INTEGRATION_TO_EXTERNAL_BRIDGE = "kbr-int-ex";
     public static final String PHYSICAL_EXTERNAL_BRIDGE = "phy-kbr-ex";
     public static final String INTEGRATION_TO_LOCAL_BRIDGE = "kbr-int-local";
     public static final String LOCAL_TO_INTEGRATION_BRIDGE = "kbr-local-int";
+    public static final String EXTERNAL_TO_ROUTER = "kbr-ex-router";
+    public static final String ROUTER_TO_EXTERNAL = "kbr-router-ex";
+    public static final String INTEGRATION_TO_TUN_BRIDGE = "kbr-int-tun";
+    public static final String TUN_TO_INTEGRATION_BRIDGE = "kbr-tun-int";
     public static final String VXLAN_TUNNEL = "vxlan";
     public static final String GRE_TUNNEL = "gre";
     public static final String GENEVE_TUNNEL = "geneve";
@@ -37,4 +43,9 @@
     public static final String VXLAN = "vxlan";
     public static final String GRE = "gre";
     public static final String GENEVE = "geneve";
+
+    public static final String DEFAULT_CLUSTER_NAME = "default";
+    public static final String DEFAULT_CONFIG_MODE = "NORMAL";
+
+    public static final int DEFAULT_SEGMENT_ID = 100;
 }