docker-compose.yml

version: '3'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    container_name: zookeeper
    networks:
      - kafka_network
    ports:
      - "22181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
  kafka:
    image: confluentinc/cp-kafka:latest
    depends_on:
      - zookeeper
    container_name: kafka
    networks:
      - kafka_network
    ports:
      - 29092:29092
    
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_LISTENERS: EXTERNAL_SAME_HOST://:29092,INTERNAL://:9092
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka:9092,EXTERNAL_SAME_HOST://localhost:29092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL_SAME_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1

networks:
    kafka_network:
      name: kafka_docker_example_net