docker-compose.yml

---
version: '2'
services:
  zookeeper:
    image: "confluentinc/cp-zookeeper:5.2.1"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

# This has three listeners you can experiment with. 
# BOB for internal traffic on the Docker network
# FRED for traffic from the Docker-host machine (`localhost`)
# ALICE for traffic from outside, reaching the Docker host on the DNS name `never-gonna-give-you-up`
# Use 
  kafka0:
    image: "confluentinc/cp-enterprise-kafka:5.2.1"
    ports:
      - '9092:9092'
      - '29094:29094'
    depends_on:
      - zookeeper
    environment:
      KAFKA_BROKER_ID: 0
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_LISTENERS: LISTENER_BOB://kafka0:29092,LISTENER_FRED://kafka0:9092,LISTENER_ALICE://kafka0:29094
      KAFKA_ADVERTISED_LISTENERS: LISTENER_BOB://kafka0:29092,LISTENER_FRED://localhost:9092,LISTENER_ALICE://never-gonna-give-you-up:29094
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_BOB:PLAINTEXT,LISTENER_FRED:PLAINTEXT,LISTENER_ALICE:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_BOB
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "false"
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 100

  kafkacat:
    image: confluentinc/cp-kafkacat
    command: sleep infinity