Use host handler to bootstrap tunnel bridge and related ports

Change-Id: I19bb28d86620b9c42c33e0b570ff176b467d71ac
diff --git a/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/K8sHostManager.java b/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/K8sHostManager.java
index fd26763..1747ada 100644
--- a/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/K8sHostManager.java
+++ b/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/K8sHostManager.java
@@ -30,6 +30,7 @@
 import org.onosproject.k8snode.api.K8sHostService;
 import org.onosproject.k8snode.api.K8sHostStore;
 import org.onosproject.k8snode.api.K8sHostStoreDelegate;
+import org.onosproject.net.DeviceId;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.store.service.StorageService;
 import org.osgi.service.component.ComponentContext;
@@ -186,6 +187,25 @@
                 .findFirst().orElse(null);
     }
 
+    @Override
+    public K8sHost host(DeviceId deviceId) {
+        return hostStore.hosts().stream()
+                .filter(host -> Objects.equals(host.ovsdb(), deviceId))
+                .findFirst().orElse(null);
+    }
+
+    @Override
+    public K8sHost hostByTunBridge(DeviceId deviceId) {
+        for (K8sHost host : hostStore.hosts()) {
+            long cnt = host.tunBridges().stream().filter(
+                    br -> br.dpid().equals(deviceId.toString())).count();
+            if (cnt > 0) {
+                return host;
+            }
+        }
+        return null;
+    }
+
     private class InternalHostStoreDelegate implements K8sHostStoreDelegate {
 
         @Override