~/.bash_profile 加入一下全局变量

export ETCD_VERSION=latest
export TOKEN=hudongtang
export CLUSTER_STATE=new
export NAME_1=etcd-node1
export NAME_2=etcd-node2
export NAME_3=etcd-node3
export HOST_1=10.0.0.105
export HOST_2=10.0.0.106
export HOST_3=10.0.0.107
export CLUSTER=${NAME_1}=http://${HOST_1}:2380,${NAME_2}=http://${HOST_2}:2380,${NAME_3}=http://${HOST_3}:2380
export DATA_DIR=/var/lib/etcd

节点1

THIS_NAME=${NAME_1}
THIS_IP=${HOST_1}
docker run -d \
  --net=host \
  --volume=${DATA_DIR}:/etcd-data \
  --name etcd quay.io/coreos/etcd:${ETCD_VERSION} \
  /usr/local/bin/etcd \
  --data-dir=/etcd-data --name ${THIS_NAME} \
  --initial-advertise-peer-urls http://${THIS_IP}:2380 --listen-peer-urls http://${THIS_IP}:2380 \
  --advertise-client-urls http://${THIS_IP}:2379 --listen-client-urls http://${THIS_IP}:2379 \
  --initial-cluster ${CLUSTER} \
  --initial-cluster-state ${CLUSTER_STATE} --initial-cluster-token ${TOKEN}

节点2

THIS_NAME=${NAME_2}
THIS_IP=${HOST_2}
docker run -d \
  --net=host \
  --volume=${DATA_DIR}:/etcd-data \
  --name etcd quay.io/coreos/etcd:${ETCD_VERSION} \
  /usr/local/bin/etcd \
  --data-dir=/etcd-data --name ${THIS_NAME} \
  --initial-advertise-peer-urls http://${THIS_IP}:2380 --listen-peer-urls http://${THIS_IP}:2380 \
  --advertise-client-urls http://${THIS_IP}:2379 --listen-client-urls http://${THIS_IP}:2379 \
  --initial-cluster ${CLUSTER} \
  --initial-cluster-state ${CLUSTER_STATE} --initial-cluster-token ${TOKEN}

节点3

THIS_NAME=${NAME_3}
THIS_IP=${HOST_3}
docker run -d \
  --net=host \
  --volume=${DATA_DIR}:/etcd-data \
  --name etcd quay.io/coreos/etcd:${ETCD_VERSION} \
  /usr/local/bin/etcd \
  --data-dir=/etcd-data --name ${THIS_NAME} \
  --initial-advertise-peer-urls http://${THIS_IP}:2380 --listen-peer-urls http://${THIS_IP}:2380 \
  --advertise-client-urls http://${THIS_IP}:2379 --listen-client-urls http://${THIS_IP}:2379 \
  --initial-cluster ${CLUSTER} \
  --initial-cluster-state ${CLUSTER_STATE} --initial-cluster-token ${TOKEN}

检查集群

docker exec etcd /usr/local/bin/etcdctl --endpoints=http://${HOST_1}:2379 member list