docker-compose.yml

version: '3.4'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    ports:
      - 22181:2181

  kafka1:
    image: confluentinc/cp-kafka:latest
    depends_on:
      - zookeeper
    restart: unless-stopped 
    ports:
      - 29092:29092
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka1:9092,PLAINTEXT_HOST://localhost:29092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_MIN_INSYNC_REPLICAS: 1
      KAFKA_DEFAULT_REPLICATION_FACTOR: 2
      KAFKA_NUM_PARTITIONS: 2
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 2
      KAFKA_AUTO_LEADER_REBALANCE_ENABLE: 'true'
  
  kafka2:
    image: confluentinc/cp-kafka:latest
    depends_on:
      - zookeeper
    restart: unless-stopped 
    ports:
      - 39092:39092
    environment:
      KAFKA_BROKER_ID: 2
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka2:9092,PLAINTEXT_HOST://localhost:39092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_MIN_INSYNC_REPLICAS: 1
      KAFKA_DEFAULT_REPLICATION_FACTOR: 2
      KAFKA_NUM_PARTITIONS: 2
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 2
      KAFKA_AUTO_LEADER_REBALANCE_ENABLE: 'true'
  
  kafka3:
    image: confluentinc/cp-kafka:latest
    depends_on:
      - zookeeper
    restart: unless-stopped 
    ports:
      - 49092:49092
    environment:
      KAFKA_BROKER_ID: 3
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka3:9092,PLAINTEXT_HOST://localhost:49092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_MIN_INSYNC_REPLICAS: 1
      KAFKA_DEFAULT_REPLICATION_FACTOR: 2
      KAFKA_NUM_PARTITIONS: 2
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 2
      KAFKA_AUTO_LEADER_REBALANCE_ENABLE: 'true'