docker-compose.yml

services:
  # Redis - In-Memory Database (Lightweight, starts fast)
  redis:
    image: redis:7.2-alpine
    container_name: matching-engine-redis
    ports:
      - "6379:6379"
    command: redis-server --appendonly yes
    volumes:
      - redis-data:/data
    networks:
      - matching-network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 5s
      timeout: 3s
      retries: 5

  # Kafka (Lightweight KRaft mode - no Zookeeper needed!)
  kafka:
    image: apache/kafka:3.7.0
    container_name: matching-engine-kafka
    ports:
      - "9092:9092"
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_LISTENERS: PLAINTEXT://0.0.0.0:9092,CONTROLLER://0.0.0.0:9093
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka:9093
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_NUM_PARTITIONS: 3
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
      CLUSTER_ID: 'MkU3OEVBNTcwNTJENDM2Qk'
    networks:
      - matching-network
    healthcheck:
      test: ["CMD-SHELL", "kafka-broker-api-versions.sh --bootstrap-server localhost:9092 || exit 1"]
      interval: 10s
      timeout: 10s
      retries: 5
      start_period: 30s

networks:
  matching-network:
    driver: bridge

volumes:
  redis-data:
    driver: local