安装：

curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum install -y python2-pip
pip install docker-compose

检查是否安装成功
docker-compose -v

注意事项：名字只能为这个 docker-compose.yml
启动方式: docker-compose up
后台启动：docker-compose up -d

docker-compose.yml文件示例：

vi docker-compose.yml

version: '3'
services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress
   wordpress:
     depends_on:
       - db
     image: wordpress:latest
     volumes:
       - web_data:/var/www/html
     ports:
       - "80"
     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
volumes:
    db_data:
    web_data:

安装zk集群：

version: '2.1'

services:
  zoo1:
    image: zookeeper:3.4.9
    hostname: zoo1
    ports:
      - "2181:2181"
    environment:
        ZOO_MY_ID: 1
        ZOO_PORT: 2181
        ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
    volumes:
      - ./zk-multiple/zoo1/data:/data
      - ./zk-multiple/zoo1/datalog:/datalog

  zoo2:
    image: zookeeper:3.4.9
    hostname: zoo2
    ports:
      - "2182:2182"
    environment:
        ZOO_MY_ID: 2
        ZOO_PORT: 2182
        ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
    volumes:
      - ./zk-multiple/zoo2/data:/data
      - ./zk-multiple/zoo2/datalog:/datalog

  zoo3:
    image: zookeeper:3.4.9
    hostname: zoo3
    ports:
      - "2183:2183"
    environment:
        ZOO_MY_ID: 3
        ZOO_PORT: 2183
        ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
    volumes:
      - ./zk-multiple/zoo3/data:/data
      - ./zk-multiple/zoo3/datalog:/datalog