docker-compose.yml

version: '3'

services:
  pythonregex:
    build: .
    container_name: pythonregex
    image: pythonregex/web

    ports:
      - '8888:8888'

    environment:
      - PYTHONREGEX_DATABASE=db

  db:
   image: 'mongo:3.5'
   hostname: 'db'