docker-compose.yml (nginx/php/mysql/phpmyadmin)

docker-compose-nginx-php-mysql-phpmyadmin.yml

version: '2'
services:

    # mysql
    mysql:
        container_name: "mysql"
        image: mysql:5.7
        ports:
            - '3306:3306' #デバッグ用
        environment:
            MYSQL_ROOT_PASSWORD: root

    # nginx
    nginx:
        container_name: "nginx"
        image: nginx:1.15.1
        links:
            - mysql
            - php

    # php
    php:
        container_name: "php"
        image: php:7.2-apache
        ports:
            - '80:80'
        volumes:
            - ./html:/var/www/html
        links:
            - mysql

    #phpmyadmin
    phpmyadmin:
        image: phpmyadmin/phpmyadmin
        environment:
            - PMA_ARBITRARY=1
            - PMA_HOST=mysql
            - PMA_USER=root
            - PMA_PASSWORD=root
        links:
            - mysql
        ports:
            - 8080:80
        volumes:
            - ./phpmyadmin/sessions:/sessions