version: "3.3"
services:
  mysql:
    image: "mysql:5.7"
    command: --default-authentication-plugin=mysql_native_password
    restart: always
    environment:
      - MYSQL_ROOT_PASSWORD=secret
    ports:
      - 3307:3306
  postgres:
    image: "postgres"
    #   Setup the username, password, and database name. You can changes these values.
    environment:
      - POSTGRES_USER=rdbc
      - POSTGRES_PASSWORD=secret
    ports:
      - "5433:5432"
    #   Set a volume so that database is not lost after shutting down the container.
    #   I used the name postgres-data but you can changed it to something else.
    volumes:
      - ./postgres-data:/var/lib/postgresql/data