文章目录

• 环境准备
• 部署
• • 创建文件夹
  • 进入文件夹
  • 生成密钥
  • 启动
  • 查看集群成员
  • 查看节点状态
  • 结果
• 检查
• 配置解说

环境准备

部署

创建文件夹

mkdir -p /docker/etcd/data

mkdir -p /docker/etcd/ca-certificates

进入文件夹

cd /docker/etcd
编辑 docker-compose.yml 文件

services:
  etcd:
    image: bitnami/etcd
    container_name: etcd
    restart: always
    ports:
      - 4001:4001
      - 2380:2380
      - 2379:2379
    volumes:
      - /docker/etcd/ca-certificates/:/etc/ssl/certs
      - /docker/etcd/data:/bitnami/etcd/data
    environment:
      - TZ=Asia/Shanghai
      - ETCD_NAME=etcd0
      - ETCD_DATA_DIR=/bitnami/etcd/data
      - ETCD_ROOT_PASSWORD=123456
      - ETCD_CLIENT_CERT_AUTH=true
      - ETCD_PEER_CLIENT_CERT_AUTH=true
      - ETCD_ADVERTISE_CLIENT_URLS=http://192.168.142.157:2379,http://192.168.142.157:4001
      - ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379,http://0.0.0.0:4001
      - ETCD_INITIAL_ADVERTISE_PEER_URLS=http://192.168.142.157:2380
      - ETCD_LISTEN_PEER_URLS=http://0.0.0.0:2380
      - ETCD_INITIAL_CLUSTER_TOKEN=etcd-cluster-1
      - ETCD_INITIAL_CLUSTER=etcd0=http://192.168.142.157:2380,etcd1=http://192.168.142.156:2380,etcd2=http://192.168.142.155:2380,etcd3=http://192.168.142.158:2380
      - ETCD_INITIAL_CLUSTER_STATE=new
      - ETCD_CERT_FILE=/etc/ssl/certs/etcd.crt
      - ETCD_KEY_FILE=/etc/ssl/certs/etcd.key
      - ETCD_TRUSTED_CA_FILE=/etc/ssl/certs/ca.crt
      - ETCD_PEER_CERT_FILE=/etc/ssl/certs/etcd.crt
      - ETCD_PEER_KEY_FILE=/etc/ssl/certs/etcd.key
      - ETCD_PEER_TRUSTED_CA_FILE=/etc/ssl/certs/ca.crt
      - ETCD_CLIENT_CERT_AUTH=true

所有主机的配置都差不多，略微差别，可以根据上述表格进行更改就行

生成密钥

具体操作请查看：etcd 快速入门

启动

docker-compose.yml

查看集群成员

docker exec -it etcd etcdctl --endpoints=http://192.168.142.157:2379 --user=root:123456 member list

查看节点状态

docker exec -it etcd etcdctl --endpoints=http://192.168.142.157:2379 --user=root:123456 endpoint health

结果

b7201f17edd745e, started, etcd2, http://192.168.142.155:2380, http://192.168.142.155:2379,http://192.168.142.155:4001, false
a3ece45ece93beee, started, etcd0, http://192.168.142.157:2380, http://192.168.142.157:2379,http://192.168.142.157:4001, true
e7c67df1418afbf6, started, etcd3, http://192.168.142.158:2380, http://192.168.142.158:2379,http://192.168.142.158:4001, false
f749462fb1703251, started, etcd1, http://192.168.142.156:2380, http://192.168.142.156:2379,http://192.168.142.156:4001, false

http://192.168.142.157:2379 is healthy: successfully committed proposal: took = 1.309654ms

看到这两个结果就说明集群部署基本成功了

检查

在主机点上插入数据

docker exec -it etcd etcdctl --endpoints=http://192.168.142.157:2379 --user=root:123456 put /mykey "myValue"

在从节点上查看

docker exec -it etcd etcdctl --endpoints=http://192.168.142.158:2379 --user=root:123456 get /mykey

返回

/mykey
myvalue

配置解说