app:
  build:
    image: danbee/chess
    dockerfile: Dockerfile
  depends_on:
    - db
  environment:
    MIX_ENV: test
    POSTGRES_HOST: db
    POSTGRES_USER: postgres
    POSTGRES_PASSWORD: password

db:
  image: healthcheck/postgres:alpine
  environment:
    POSTGRES_USER: postgres
    POSTGRES_PASSWORD: password