Docker compose de Banco Mysql com phpMyAdmin

Docker-compose.yml

version: '3'

services:
  
  # Database
  db:
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    ports:
      - "3307:3306"
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: root
      MYSQL_USER: admin
      MYSQL_PASSWORD: 123456

  # phpmyadmin
  phpmyadmin:
    depends_on:
      - db
    image: phpmyadmin/phpmyadmin
    restart: always
    ports:
      - '8082:80'
    environment:
      PMA_HOST: db
      MYSQL_ROOT_PASSWORD: root 

volumes:
  db_data: