services:
  kafka:
    image: apache/kafka:4.0.0
    container_name: kafka-apache-kraft-410
    ports:
      - "9092:9092"          # 映射 Broker 端口
    environment:
      # 1. 启用 KRaft 模式
      KAFKA_NODE_ID: 1
      KAFKA_CLUSTER_ID: 4V-T-K3dRSy_6s2d17K97Q
      KAFKA_PROCESS_ROLES: "broker,controller"

      # 2. 监听器配置
      KAFKA_LISTENERS: "PLAINTEXT://:9092,CONTROLLER://:9093"
      KAFKA_ADVERTISED_LISTENERS: "PLAINTEXT://localhost:9092"
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: "CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT"
      KAFKA_CONTROLLER_LISTENER_NAMES: "CONTROLLER"

      # 3. Controller 连接信息（单节点）
      KAFKA_CONTROLLER_QUORUM_VOTERS: "1@localhost:9093"

      KAFKA_LOG_DIRS: "/var/lib/kafka/data"

    volumes:
      - ./kafka-data:/var/lib/kafka/data   # 数据持久化
      - ./log4j2.properties:/opt/kafka/config/log4j2.properties:ro  # 日志级别配置
    restart: always