phpmyadminとmysqlの環境を作るやつ

pma-docker-compose.yml

version: '3'

services:
  db:
    container_name: composed-mysql
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: foobar123
      MYSQL_DATABASE: db_study

  pma:
    container_name: composed-pma
    image: phpmyadmin/phpmyadmin
    ports:
      - "8080:80"
    restart: always
    environment:
      PMA_HOST: db
      PMA_USER: root
      PMA_PASSWORD: foobar123

volumes:
  db_data:

ブラウザから http://localhost:8080/ へアクセス！