compose.yml

services:
  db:
    image: 'postgres:15-alpine'
    environment:
      POSTGRES_USER: ${DB_USERNAME:-dba}
      POSTGRES_PASSWORD: ${DB_PASSWORD:-secretsecret}
      POSTGRES_DB: ${DB_NAME:-hellojpa-db}
    # Only expose ports if you need to connect from your host machine (e.g., via DBeaver)
    # ports:
    #  - "5432:5432"
    volumes:
      - pg-data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USERNAME:-dba} -d ${DB_NAME:-hellojpa-db}"]
      interval: 5s
      timeout: 5s
      retries: 5
    networks:
      - backend

  app:
    image: 'brunoe/sample-hellojpa:latest'
    build:
      context: .
      # Encourages using the BuildKit cache we set up in the Dockerfile
      dockerfile: Dockerfile
    depends_on:
      db:
        condition: service_healthy
    environment:
      DB_USERNAME: ${DB_USERNAME:-dba}
      DB_PASSWORD: ${DB_PASSWORD:-secretsecret}
      DB_URL: ${DB_URL:-jdbc:postgresql://db/hellojpa-db}
    deploy:
      resources:
        limits:
          memory: 512M
          cpus: '1.0'
    ports:
      - "8080:8080"
    networks:
      - backend

networks:
  backend:

volumes:
  pg-data: