tootlab-mastodon/docker-compose.yml

version: '2'
services:
  db:
    image: postgres
  redis:
    image: redis
  web:
    build: .
    command: bundle exec rails s -p 3000 -b '0.0.0.0'
    ports:
      - "3000:3000"
    depends_on:
      - db
      - redis
    volumes:
      - ./public/assets:/mastodon/public/assets
      - ./public/system:/mastodon/public/system
    env_file: .env.production