version: "3.7" services: web: build: context: . dockerfile: .docker/ruby/Dockerfile command: ruby bin/rails server --port 3000 --binding 0.0.0.0 links: - postgres - redis environment: - SPROCKETS_CACHE=/cache volumes: - ./:/app - cache:/cache ports: - 3000:3000 redis: image: redis:3.2.11-alpine ports: - 6379:6379 postgres: image: postgres:10.12 ports: - 5432:5432 environment: POSTGRES_PASSWORD: justask POSTGRES_DB: justask_development volumes: cache: