可能是迁移的副本Kubernetes Master

实际上，您只需要

• 从磁盘克隆数据
• 更改新服务器的身份(IP地址/DNS名称)

更新

如果要在kubeadm配置中更改主IP地址，请检查以下参考:

If you want to change master IP address in kubeadm config, check following references:

• 替换/etc/kubernetes中所有配置文件中的IP地址
• 备份/etc/kubernetes/pki
• 识别/etc/kubernetes/pki中具有旧IP地址作为替代名称的证书
• 同时删除它们的证书和密钥(对我来说，这只是apiserver和etcd/peer)
• 使用kubeadm alpha阶段证书重新生成证书 2
• 在引用旧IP的kube-system命名空间中标识configmap
• 手动编辑这些配置映射 重新启动kubelet和docker(强制重新创建所有容器)

• replacing the IP address in all config files in /etc/kubernetes
• backing up /etc/kubernetes/pki
• identifying certs in /etc/kubernetes/pki that have the old IP address as an alt name
• deleting both the cert and key for each of them (for me it was just apiserver and etcd/peer)
• regenerating the certs using kubeadm alpha phase certs2
• identifying configmap in the kube-system namespace that referenced the old IP
• manually editing those configmaps restarting kubelet and docker (to force all containers to be recreated)

或者逐步查看说明href ="https://github.com/kubernetes/kubeadm/issues/338#issuecomment-418879755" >