下载 etcdctl wget https://github.com/etcd-io/etcd/releases/download/v3.4.13/etcd-v3.4.13-linux-amd64.tar.gz 设置备份还原所需环境变量 ETCDCTL_API=3 endpoint=https://10.157.1.16:2379 cacert=/etc/kubernetes/pki/etcd/ca.crt cert=/etc/kubernetes/