Docker-zookeeper

1. 参考资料
   • https://hub.docker.com/_/zookeeper.
   • https://docs.docker.com/compose/networking/
   • https://zhuanlan.zhihu.com/p/110677319
2. 下载镜像

docker pull zookeeper

3. 单机安装

docker run --name zk -h zk -p 2181:2181 --network my-bridge --ip 192.168.17.1 --restart always -d zookeeper

docker exec -it zk /bin/bash

# 三种连接方式
## wget https://downloads.apache.org/zookeeper/zookeeper-3.6.2/apache-zookeeper-3.6.2-bin.tar.gz
## tar zxf apache-zookeeper-3.6.2-bin.tar.gz
## cd apache-zookeeper-3.6.2-bin

## 宿主机 IP:2181
[root@mytest apache-zookeeper-3.6.2-bin]# bin/zkCli.sh -server localhost:2181

## 容器 IP:2181
[root@mytest apache-zookeeper-3.6.2-bin]# bin/zkCli.sh -server 192.168.17.1:2181

## 其它容器通过 hostname::2181
docker run --rm --network my-bridge -it zookeeper /bin/bash
root@e179d72a2d7a:/apache-zookeeper-3.6.2-bin# bin/zkCli.sh -server zk:2181

4. 集群安装
   • ~/docker/zookeeper/docker-compose.yml

version: '3.1'

networks:
  default:
    name: my-bridge
      
services:
  zoo1:
    image: zookeeper
    restart: unless-stopped
    hostname: zoo1
    container_name: zoo1
    ports:
      - 2182:2181
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=0.0.0.0:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

  zoo2:
    image: zookeeper
    restart: unless-stopped
    hostname: zoo2
    container_name: zoo2
    ports:
      - 2183:2181
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=0.0.0.0:2888:3888;2181 server.3=zoo3:2888:3888;2181

  zoo3:
    image: zookeeper
    restart: unless-stopped
    hostname: zoo3
    container_name: zoo3
    ports:
      - 2184:2181
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=0.0.0.0:2888:3888;2181

# 创建容器
docker-compose -f ~/docker/zookeeper/docker-compose.yml up -d

# 查看日志
docker-compose -f ~/docker/zookeeper/docker-compose.yml logs zoo1

docker-compose -f ~/docker/zookeeper/docker-compose.yml logs zoo2

docker-compose -f ~/docker/zookeeper/docker-compose.yml logs zoo3

# 查看节点状态
docker exec -it zoo1 /bin/sh

docker exec -it zoo2 /bin/sh

docker exec -it zoo3 /bin/sh

zkServer.sh status

# 客户端连接
./zkCli.sh -server 127.0.0.1:2181