[root@shuaichao ~]# cat /opt/docker-compose.yaml
version: "3"
services:
    mysql_master:
        image: mysql:5.7
        volumes:
            - /opt/master_my.cnf:/etc/my.cnf
            - /opt/master_data:/var/lib/mysql
        expose:
            - 3306
        ports:
            - 3306:3306
        environment:
            MYSQL_ROOT_PASSWORD: redhat
            MYSQL_DATABASE: wordpress
            MYSQL_USER: wordpress
            MYSQL_PASSWORD: redhat
    redis:
        image: redis:latest
        expose:
            - 6379
        volumes:
            - /opt/redis_data:/data
            - /opt/redis.conf:/etc/redis/redis.conf
    wordpress:
        image: wordpress:latest
        expose:
            - 80
        volumes:
            - /opt/wordpress_data:/var/www/html
        depends_on:
            - mysql_master
            - redis
        links:
            - mysql_master:mysql_master
            - redis:redis
        environment:
            WORDPRESS_DB_HOST: mysql_master
            WORDPRESS_DB_USER: wordpress
            WORDPRESS_DB_PASSWORD: redhat
            WORDPRESS_DB_NAME: wordpress
            WORDPRESS_TABLE_PREFIX: wp_
        ports:
            - 80:80