version: '3' services: db: image: postgres:alpine restart: always volumes: - db:/var/lib/postgresql/data env_file: - db.env app: image: nextcloud:apache restart: always ports: - 8080:80 volumes: - nextcloud:/var/www/html environment: - POSTGRES_HOST=db - POSTGRES_DB=nextcloud env_file: - db.env depends_on: - db volumes: db: nextcloud: