Docker compose file to run postgresql and mongodb locally

docker-compose.yml

version: '3.1'
services:
  docker-postgres:
    image: postgres:11.1
    container_name: docker-postgres
    volumes:
      - path/to/volume:/var/lib/postgresql/data
    environment:
      - POSTGRES_USER=docker
      - POSTGRES_DB=docker
      - POSTGRES_PASSWORD=docker
    ports:
      - local_port:5432
    networks:
      - default
    restart: always

  docker-mongodb:
    image: mongo:4.0.5
    container_name: docker-mongodb
    volumes:
      - path/to/volume:/data/db
    ports:
      - local_port:27017
    networks:
      - default
    restart: always

networks:
  default:
    external:
      name: docker_default

Volumes: are optional, they provide consistent data.
Images: versions are optional, choose what best fits for you.