docker-compose.yml

version: '3.8'

services:
  # 🔹 PostgreSQL Database
  postgres:
    image: postgres:latest
    container_name: postgres-db
    restart: always
    environment:
      POSTGRES_USER: myuser
      POSTGRES_PASSWORD: mypassword
      POSTGRES_DB: mydatabase
    volumes:
      - pg_data:/var/lib/postgresql/data
    ports:
      - "5432:5432"

  # 🔹 MySQL Database
  mysql:
    image: mysql:latest
    container_name: mysql-db
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword
      MYSQL_USER: myuser
      MYSQL_PASSWORD: mypassword
      MYSQL_DATABASE: mydatabase
    volumes:
      - mysql_data:/var/lib/mysql
    ports:
      - "3306:3306"

  # 🔹 MongoDB Database
  mongodb:
    image: mongo:latest
    container_name: mongodb
    restart: always
    environment:
      MONGO_INITDB_ROOT_USERNAME: myuser
      MONGO_INITDB_ROOT_PASSWORD: mypassword
      MONGO_INITDB_DATABASE: mydatabase
    volumes:
      - mongo_data:/data/db
    ports:
      - "27017:27017"

volumes:
  pg_data:
  mysql_data:
  mongo_data: