Docker compose file for AMP stack: Apache, MySQL, PHP and PHPMyAdmin

docker-compose.yml

version: "3.1"

services:
  www:
    build: .
    ports:
      - "8001:80"
    volumes:
      - ./:/var/www/html/
    networks:
      - default
    links:
      - db
  db:
   image: mysql:5.7
   ports: 
    - "3306:3306"
   command: --default-authentication-plugin=mysql_native_password
   networks:
    - default
   volumes:
    - /var/lib/mysql
   environment:
    MYSQL_DATABASE: test
    MYSQL_USER: user
    MYSQL_PASSWORD: test
    MYSQL_ROOT_PASSWORD: test 
  phpmyadmin:
   image: phpmyadmin/phpmyadmin
   links: 
    - db:db
   ports:
    - 8000:80
   environment:
    MYSQL_USER: user
    MYSQL_PASSWORD: test
    MYSQL_ROOT_PASSWORD: test