From 4453f2c777572db507d7daf4a679bac9e8b7d6ec Mon Sep 17 00:00:00 2001
From: xiangpengzhao <zhao.xiangpeng@zte.com.cn>
Date: Sun, 19 Nov 2017 15:57:11 +0800
Subject: [PATCH] Fix panic when assigning configmap UID of kubelet
 configuration.

---
 cmd/kubeadm/app/phases/kubelet/kubelet.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/cmd/kubeadm/app/phases/kubelet/kubelet.go b/cmd/kubeadm/app/phases/kubelet/kubelet.go
index af0d5dc7692..f3364e96fea 100644
--- a/cmd/kubeadm/app/phases/kubelet/kubelet.go
+++ b/cmd/kubeadm/app/phases/kubelet/kubelet.go
@@ -86,7 +86,13 @@ func UpdateNodeWithConfigMap(client clientset.Interface, nodeName string) error
 			return false, nil
 		}
 
-		node.Spec.ConfigSource.ConfigMapRef.UID = kubeletCfg.UID
+		node.Spec.ConfigSource = &v1.NodeConfigSource{
+			ConfigMapRef: &v1.ObjectReference{
+				Name:      kubeadmconstants.KubeletBaseConfigurationConfigMap,
+				Namespace: metav1.NamespaceSystem,
+				UID:       kubeletCfg.UID,
+			},
+		}
 
 		newData, err := json.Marshal(node)
 		if err != nil {