version: "3.8" services: app: build: context: . dockerfile: Dockerfile target: production # Optional: use if your Dockerfile defines multiple stages environment: # Define your app-specific environment variables DATABASE_URL: postgres://user:pass@db:5432/app # Do not define "ports" here—Coolify will handle them for you depends_on: - db db: image: postgres:13 environment: POSTGRES_USER: user POSTGRES_PASSWORD: pass POSTGRES_DB: app volumes: - postgres-data:/var/lib/postgresql/data volumes: postgres-data: