安装etcd3.4.13
ETCD_VERSION='3.4.13'
wget https://github.com/etcd-io/etcd/releases/download/v${ETCD_VERSION}/etcd-v${ETCD_VERSION}-linux-amd64.tar.gz
tar -xvf etcd-v${ETCD_VERSION}-linux-amd64.tar.gz && \
cd etcd-v${ETCD_VERSION}-linux-amd64 && \
sudo cp -a etcd etcdctl /usr/bin/
nohup etcd >/tmp/etcd.log 2>&1 &