docker-compose.yml

services:
  zookeeper:
    image: bitnami/zookeeper:latest
    environment:
      - ALLOW_ANONYMOUS_LOGIN=yes

  kafka1:
    image: bitnami/kafka:2.8.1
    ports:
      - "9093:9093"
    environment:
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181
      - ALLOW_PLAINTEXT_LISTENER=yes
      - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CLIENT:PLAINTEXT,EXTERNAL:PLAINTEXT
      - KAFKA_CFG_LISTENERS=CLIENT://:9092,EXTERNAL://:9093
      - KAFKA_CFG_ADVERTISED_LISTENERS=CLIENT://kafka1:9092,EXTERNAL://localhost:9093
      - KAFKA_INTER_BROKER_LISTENER_NAME=CLIENT

  kafka2:
    image: bitnami/kafka:2.8.1
    profiles:
      - clustered
    ports:
      - "9094:9094"
    environment:
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181
      - ALLOW_PLAINTEXT_LISTENER=yes
      - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CLIENT:PLAINTEXT,EXTERNAL:PLAINTEXT
      - KAFKA_CFG_LISTENERS=CLIENT://:9092,EXTERNAL://:9094
      - KAFKA_CFG_ADVERTISED_LISTENERS=CLIENT://kafka2:9092,EXTERNAL://localhost:9094
      - KAFKA_INTER_BROKER_LISTENER_NAME=CLIENT