services: db: image: postgres:13-alpine environment: POSTGRES_PASSWORD: postgres ports: - "5432:5432" volumes: - dbdata:/var/lib/postgresql/data frontend: build: context: frontend args: NEXT_PUBLIC_BACKEND_URL: ${NEXT_PUBLIC_BACKEND_URL} ports: - "3000:80" tty: true backend: build: context: backend environment: POSTGRES_CONNECTION_STRING: ${POSTGRES_CONNECTION_STRING} FRONTEND_URL: ${FRONTEND_URL} PORT: 4000 ports: - "4000:4000" volumes: dbdata: