Update node status instead of node in kubelet

pkg/kubelet/kubelet_node_status.go

@@ -107,7 +107,7 @@ func (kl *Kubelet) tryRegisterWithApiServer(node *api.Node) bool {
 		// annotation.
 		requiresUpdate := kl.reconcileCMADAnnotationWithExistingNode(node, existingNode)
 		if requiresUpdate {
-			if _, err := kl.kubeClient.Core().Nodes().Update(existingNode); err != nil {
+			if _, err := kl.kubeClient.Core().Nodes().UpdateStatus(existingNode); err != nil {
 				glog.Errorf("Unable to reconcile node %q with API server: error updating node: %v", kl.nodeName, err)
 				return false
 			}

pkg/kubelet/kubelet_node_status_test.go

@@ -1028,8 +1028,11 @@ func TestTryRegisterWithApiServer(t *testing.T) {
 			// Return an existing (matching) node on get.
 			return true, tc.existingNode, tc.getError
 		})
-		kubeClient.AddReactor("update", "nodes", func(action core.Action) (bool, runtime.Object, error) {
-			return true, nil, tc.updateError
+		kubeClient.AddReactor("update", "*", func(action core.Action) (bool, runtime.Object, error) {
+			if action.GetResource().Resource == "nodes" && action.GetSubresource() == "status" {
+				return true, nil, tc.updateError
+			}
+			return true, nil, fmt.Errorf("no reaction implemented for %s", action)
 		})
 		kubeClient.AddReactor("delete", "nodes", func(action core.Action) (bool, runtime.Object, error) {
 			return true, nil, tc.deleteError