docker搭建etcd集群环境

其实关于集群网上说的方案已经很多了，尤其是官网，只是这里我个人只有一个虚拟机，在开发环境下建议用docker-compose来搭建etcd集群.

1.拉取etcd镜像

docker pull quay.io/coreos/etcd

2.编辑docker-compose.yaml文件：

version: ''

networks:

  byfn:

services:

  etcd1:

    image: quay.io/coreos/etcd

    container_name: etcd1

    command: etcd -name etcd1 -advertise-client-urls http://0.0.0.0:2379 -listen-client-urls http://0.0.0.0:2379 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster -initial-cluster "etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380" -initial-cluster-state new

    ports:

      - "12379:2379"

      -

    networks:

      - byfn

  etcd2:

    image: quay.io/coreos/etcd

    container_name: etcd2

    command: etcd -name etcd2 -advertise-client-urls http://0.0.0.0:2379 -listen-client-urls http://0.0.0.0:2379 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster -initial-cluster "etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380" -initial-cluster-state new

    ports:

      - "22379:2379"

      -

    networks:

      - byfn

  etcd3:

    image: quay.io/coreos/etcd

    container_name: etcd3

    command: etcd -name etcd3 -advertise-client-urls http://0.0.0.0:2379 -listen-client-urls http://0.0.0.0:2379 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster -initial-cluster "etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380" -initial-cluster-state new

    ports:

      - "32379:2379"

      -

    networks:

      - byfn

3.启动服务验证：

docker-compose up

#docker-compose down

curl -L http://127.0.0.1:12379/v2/members #查看etcd1的数据

curl -L http://127.0.0.1:22379/v2/members #查看etcd2的数据

curl -L http://127.0.0.1:32379/v2/members #查看etcd3的数据

#也可以用命令行工具etcdctl

docker exec -t etcd1 etcdctl member list

#我们往一个node上上传数据，在其他node上就能下载到

curl -L http://127.0.0.1:12379/v2/keys/foo -XPUT -d value="Hello foo"

curl -L http://127.0.0.1:12379/v2/keys/foo1/foo1 -XPUT -d value="Hello foo1"

curl -L http://127.0.0.1:12379/v2/keys/foo2/foo2 -XPUT -d value="Hello foo2"

curl -L http://127.0.0.1:12379/v2/keys/foo2/foo21/foo21 -XPUT -d value="Hello foo21"

curl -L http://127.0.0.1:22379/v2/keys/foo

curl -L http://127.0.0.1:22379/v2/keys/foo2

curl -L http://127.0.0.1:22379/v2/keys/foo2?recursive=true

参考：

巴特西

docker搭建etcd集群环境

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