kafka cluster in docker-compose.

docker-compose.yml

# WARNING: This docker-compose.yml is only for testing purpose.
# Parameters:
# - name: CONFLUENT_PLATFORM_VERSION
#   default: 3.0.0
#   reference: https://hub.docker.com/u/confluentinc/
# Ports:
# - description: Major ports are exposed to host computer
# - zookeeper: 2181
#      kafka1: 9091
#      kafka2: 9092
#      kafka3: 9093
#      kafka4: 9094
#      kafka5: 9095
# Tips:>
#   - You can up part of the cluster with below command.
#     $ docker-compose up -d kafka1 kafka2 kafka3

version: '3.3'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:${CONFLUENT_PLATFORM_VERSION:-3.0.0}
    ports:
    - "2181:2181"
    - "2888:2888"
    - "3888:3888"
    healthcheck:
      test: echo stat | nc localhost 2181
      interval: 10s
      timeout: 10s
      retries: 3
    environment:
    - ZOOKEEPER_SERVER_ID=1
    - ZOOKEEPER_CLIENT_PORT=2181
    - ZOOKEEPER_TICK_TIME=2000
    - ZOOKEEPER_INIT_LIMIT=5
    - ZOOKEEPER_SYNC_LIMIT=2
    - ZOOKEEPER_SERVERS=zookeeper:2888:3888
  kafka1:
    image: confluentinc/cp-kafka:${CONFLUENT_PLATFORM_VERSION:-3.0.0}
    healthcheck:
      test: ps augwwx | egrep [S]upportedKafka
    depends_on:
    - zookeeper
    ports:
    - "9091:9091"
    environment:
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka1:9091
    - KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9091
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
    - KAFKA_BROKER_ID=1
    - BOOTSTRAP_SERVERS=kafka1:9091,kafka2:9092,kafka3:9093,kafka4:9094,kafka5:9095
    - ZOOKEEPER=zookeeper:2181
  kafka2:
    image: confluentinc/cp-kafka:${CONFLUENT_PLATFORM_VERSION:-3.0.0}
    healthcheck:
      test: ps augwwx | egrep [S]upportedKafka
    depends_on:
    - zookeeper
    ports:
    - "9092:9092"
    environment:
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka2:9092
    - KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
    - KAFKA_BROKER_ID=2
    - BOOTSTRAP_SERVERS=kafka1:9091,kafka2:9092,kafka3:9093,kafka4:9094,kafka5:9095
    - ZOOKEEPER=zookeeper:2181
  kafka3:
    image: confluentinc/cp-kafka:${CONFLUENT_PLATFORM_VERSION:-3.0.0}
    healthcheck:
      test: ps augwwx | egrep [S]upportedKafka
    depends_on:
    - zookeeper
    ports:
    - "9093:9093"
    environment:
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka3:9093
    - KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9093
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
    - KAFKA_BROKER_ID=3
    - BOOTSTRAP_SERVERS=kafka1:9091,kafka2:9092,kafka3:9093,kafka4:9094,kafka5:9095
    - ZOOKEEPER=zookeeper:2181
  kafka4:
    image: confluentinc/cp-kafka:${CONFLUENT_PLATFORM_VERSION:-3.0.0}
    healthcheck:
      test: ps augwwx | egrep [S]upportedKafka
    depends_on:
    - zookeeper
    ports:
    - "9094:9094"
    environment:
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka4:9094
    - KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9094
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
    - KAFKA_BROKER_ID=4
    - BOOTSTRAP_SERVERS=kafka1:9091,kafka2:9092,kafka3:9093,kafka4:9094,kafka5:9095
    - ZOOKEEPER=zookeeper:2181
  kafka5:
    image: confluentinc/cp-kafka:${CONFLUENT_PLATFORM_VERSION:-3.0.0}
    healthcheck:
      test: ps augwwx | egrep [S]upportedKafka
    depends_on:
    - zookeeper
    ports:
    - "9095:9095"
    environment:
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka5:9095
    - KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9095
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
    - KAFKA_BROKER_ID=5
    - BOOTSTRAP_SERVERS=kafka1:9091,kafka2:9092,kafka3:9093,kafka4:9094,kafka5:9095
    - ZOOKEEPER=zookeeper:2181