version: "3.7"
services:
  backend:
    build: backend
    ports:
    - 80:8080
    environment:
      POSTGRES_DB: example
    networks:
      - spring-postgres
  db:
    environment:
      POSTGRES_DB: example
      POSTGRES_PASSWORD_FILE: /run/secrets/db-password
    image: postgres
    restart: always
    secrets:
    - db-password
    volumes:
    - db-data:/var/lib/postgresql/data
    networks:
      - spring-postgres
volumes:
  db-data: {}
secrets:
  db-password:
    file: db/password.txt
networks:
  spring-postgres: {}