kubernetes集群搭建报错：error #0: dial tcp 127.0.0.1:4001: connect: connection refused

本人尝试部署k8s。安装了etcd，配置如下：但是运行 etcdctl cluster-health。始终报错： error #0: dial tcp 127.0.0.1:4001: connect: connection refused error #1: client: endpoint http://127.0.0.1:2379 exceeded header timeout 求大神解惑。谢

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