docker-compose.yml

version: '3.8'
services:
  mysql:
    image: mysql:latest
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword
      MYSQL_USER: user
      MYSQL_PASSWORD: password
      MYSQL_DATABASE: db
    ports:
      - "3306:3306"

  postgres:
    image: postgres:latest
    restart: always
    environment:
      POSTGRES_USER: user
      POSTGRES_PASSWORD: password
      POSTGRES_DB: db
    ports:
      - "5432:5432"

  redis:
    image: redis:latest
    restart: always
    ports:
      - "6379:6379"