Docker部署kafka集群

 

Docker部署kafka集群

 

利用docker可以很方便的在一台机子上搭建kafka集群并进行测试。为了简化配置流程，采用docker-compose进行进行搭建。

 

 

kafka搭建过程如下：

1. 编写docker-compose.yml文件,内容如下:

 

version: '3.3'
  services:
  zookeeper:
    image: wurstmeister/zookeeper
    ports:
      - 2181:2181
    container_name: zookeeper
    networks:
      default:
        ipv4_address: 172.22.0.11
  kafka0:
    image: wurstmeister/kafka
    depends_on:
      - zookeeper
    container_name: kafka0
    ports:
      - 9092:9092
    environment:
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka0:9092
      KAFKA_LISTENERS: PLAINTEXT://kafka0:9092
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_BROKER_ID: 0
    volumes:
      - /data/kafka0/data:/data
      - /data/kafka0/log:/datalog
    networks:
      default:
        ipv4_address: 172.22.0.12
  kafka1:
    image: wurstmeister/kafka
    depends_on:
      - zookeeper
    container_name: kafka1
    ports:
      - 9093:9093
    environment:
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka1:9093
      KAFKA_LISTENERS: PLAINTEXT://kafka1:9093
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_BROKER_ID: 1
    volumes:
      - /data/kafka1/data:/data
      - /data/kafka1/log:/datalog
    networks:
      default:
        ipv4_address: 172.22.0.13
  kafka2:
    image: wurstmeister/kafka
    depends_on:
      - zookeeper
    container_name: kafka2
    ports:
      - 9094:9094
    environment:
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka2:9094
      KAFKA_LISTENERS: PLAINTEXT://kafka2:9094
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_BROKER_ID: 2
    volumes:
      - /data/kafka2/data:/data
      - /data/kafka2/log:/datalog
    networks:
      default:
        ipv4_address: 172.22.0.14
  kafka-manager:
    image: sheepkiller/kafka-manager:latest
    restart: unless-stopped
    container_name: kafka-manager
    hostname: kafka-manager
    ports:
      - "9000:9000"
    links:            # 连接本compose文件创建的container
      - kafka0
      - kafka1
      - kafka2
    external_links:   # 连接本compose文件以外的container
      - zookeeper
    environment:
      ZK_HOSTS:172.17.0.2:2181                 ## 修改:宿主机IP
      TZ: CST-8
networks:
  default:
    external:
      name: zookeeper_kafka

 

 

2、创建子网

docker network create --subnet 172.22.0.0/16 --gateway 172.22.0.1 zookeeper_kafka

 

 

3、 执行docker-compose命令进行搭建

docker-compose -f docker-compose.yaml up -d

输入docker ps -a 命令如能查看到我们启动的三个服务且处于运行状态说明部署成功

 

浏览器访问http://ip:9000进入kafka-manager管理页面，Add Cluster即可

 

 

测试kafka

 

输入docker exec -it kafka0 bash 进入kafka0容器，并执行如下命令创建topic

cd /opt/kafka_2.13-2.7.0/bin/

./kafka-topics.sh --create --topic chat --partitions 5 --zookeeper 172.17.0.2:2181 --replication-factor 3

输入如下命令开启生产者

./kafka-console-producer.sh --broker-list kafka0:9092 --topic chat

开启另一个shell界面进入kafka2容器并执行下列命令开启消费者

./kafka-console-consumer.sh --bootstrap-server kafka2:9094 --topic chat --from-beginning

回到生产者shell输入消息，看消费者shell是否会出现同样的消息，如果能够出现说明kafka集群搭建正常。