docker-compose.yml

services:
  # 1. Backend
  backend:
    build: .
    restart: unless-stopped
    depends_on:
      - redis
      - kafka
    environment:
      - REDIS_URL=redis://redis:6379
      - KAFKA_BOOTSTRAP_SERVERS=kafka:9092
    expose:
      - "3000"

  # 2. Redis
  redis:
    image: redis:7
    restart: unless-stopped

  # 3. Nginx
  nginx:
    image: nginx:latest
    restart: unless-stopped
    ports:
      - "80:80"
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    depends_on:
      - backend

  # 4. Zookeeper (Required for Kafka)
  zookeeper:
    image: confluentinc/cp-zookeeper:7.4.0
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

  # 5. Kafka Broker
  kafka:
    image: confluentinc/cp-kafka:7.4.0
    depends_on:
      - zookeeper
    expose:
      - "9092"
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1