etcdctl --ca-file /etc/kubernetes/ssl/ca.pem --cert-file /etc/kubernetes/ssl/etcd.pem --key-file /etc/kubernetes/ssl/etcd-key.pem member list
etcdctl --ca-file /etc/kubernetes/ssl/ca.pem --cert-file /etc/kubernetes/ssl/etcd.pem --key-file /etc/kubernetes/ssl/etcd-key.pem member list