容器编排docker-compose

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

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: