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docker搭建kafka集群

konsy_dong 人气:0

一、原生Docker命令

1. 删除所有dangling数据卷(即无用的Volume,僵尸文件)

docker volume rm $(docker volume ls -qf dangling=true)

2. 删除所有dangling镜像(即无tag的镜像)

docker rmi $(docker images | grep "^<none>" | awk "{print $3}"

3. 删除所有关闭的容器

docker ps -a | grep Exit | cut -d ' ' -f 1 | xargs docker rm

二、镜像选择

环境为M1版本的mbp:

三、集群规划

1. 新建docker网络

docker network create docker-net --subnet 172.20.10.0/16
docker network ls

2. 集群规划

hostnameIp addrportlistener
zook1172.20.10.112184:2181 
zook2172.20.10.122185:2181 
zook3172.20.10.132186:2181 
kafka1172.20.10.14内部9092:9092,外部9192:9192kafka1
kafka2172.20.10.15内部9093:9093,外部9193:9193kafka2
Kafka3172.20.10.16内部9094:9094,外部9194:9194Kafka3
本机(宿主机Mbp)172.20.10.2  
kafka manager172.20.10.109000:9000 

四、Zookeeper集群安装

1. 新建文件zk-docker-compose.yml

version: '3.4'

services:
  zook1:
    image: zookeeper:latest
    restart: always
    hostname: zook1
    container_name: zook1 #容器名称,方便在rancher中显示有意义的名称
    ports:
    - 2183:2181 #将本容器的zookeeper默认端口号映射出去
    volumes: # 挂载数据卷
    - "/Users/konsy/Development/volume/zkcluster/zook1/data:/data"
    - "/Users/konsy/Development/volume/zkcluster/zook1/datalog:/datalog"
    - "/Users/konsy/Development/volume/zkcluster/zook1/logs:/logs"
    environment:
        ZOO_MY_ID: 1  #即是zookeeper的节点值,也是kafka的brokerid值
        ZOO_SERVERS: server.1=zook1:2888:3888;2181 server.2=zook2:2888:3888;2181 server.3=zook3:2888:3888;2181
    networks:
        docker-net:
            ipv4_address: 172.20.10.11

  zook2:   
    image: zookeeper:latest
    restart: always
    hostname: zook2
    container_name: zook2 #容器名称,方便在rancher中显示有意义的名称
    ports:
    - 2184:2181 #将本容器的zookeeper默认端口号映射出去
    volumes:
    - "/Users/konsy/Development/volume/zkcluster/zook2/data:/data"
    - "/Users/konsy/Development/volume/zkcluster/zook2/datalog:/datalog"
    - "/Users/konsy/Development/volume/zkcluster/zook2/logs:/logs"
    environment:
        ZOO_MY_ID: 2  #即是zookeeper的节点值,也是kafka的brokerid值
        ZOO_SERVERS: server.1=zook1:2888:3888;2181 server.2=zook2:2888:3888;2181 server.3=zook3:2888:3888;2181
    networks:
        docker-net:
            ipv4_address: 172.20.10.12
            
  zook3:   
    image: zookeeper:latest
    restart: always
    hostname: zook3
    container_name: zook3 #容器名称,方便在rancher中显示有意义的名称
    ports:
    - 2185:2181 #将本容器的zookeeper默认端口号映射出去
    volumes:
    - "/Users/konsy/Development/volume/zkcluster/zook3/data:/data"
    - "/Users/konsy/Development/volume/zkcluster/zook3/datalog:/datalog"
    - "/Users/konsy/Development/volume/zkcluster/zook3/logs:/logs"
    environment:
        ZOO_MY_ID: 3  #即是zookeeper的节点值,也是kafka的brokerid值
        ZOO_SERVERS: server.1=zook1:2888:3888;2181 server.2=zook2:2888:3888;2181 server.3=zook3:2888:3888;2181
    networks:
        docker-net:
            ipv4_address: 172.20.10.13
networks:
  docker-net:
    external:
      name: docker-net

2. 执行脚本部署zookeeper至Docker:

docker compose -f ./zk-docker-compose.yml up -d

五、Kafka集群安装

1. 新建文件kafka-docker-compose.yml

version: '2'

services:
  kafka1:
    image: docker.io/wurstmeister/kafka
    restart: always
    hostname: kafka1
    container_name: kafka1
    ports:
      - 9093:9093
      - 9193:9193
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_LISTENERS: INSIDE://:9093,OUTSIDE://:9193
      #KAFKA_ADVERTISED_LISTENERS=INSIDE://<container>:9092,OUTSIDE://<host>:9094
      SKAFKA_ADVERTISED_LISTENERS: INSIDE://kafka1:9093,OUTSIDE://localhost:9193
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INSIDE
      KAFKA_ZOOKEEPER_CONNECT: zook1:2181,zook2:2181,zook3:2181
      ALLOW_PLAINTEXT_LISTENER : 'yes'
      JMX_PORT: 9999 #开放JMX监控端口,来监测集群数据
    volumes:
      - /Users/konsy/Development/volume/kafka/kafka1/wurstmeister/kafka:/wurstmeister/kafka
      - /Users/konsy/Development/volume/kafka/kafka1/kafka:/kafka
    external_links:
      - zook1
      - zook2
      - zook3
    networks:
      docker-net:
        ipv4_address: 172.20.10.14

  kafka2:
    image: docker.io/wurstmeister/kafka
    restart: always
    hostname: kafka2
    container_name: kafka2
    ports:
      - 9094:9094
      - 9194:9194
    environment:
      KAFKA_BROKER_ID: 2
      KAFKA_LISTENERS: INSIDE://:9094,OUTSIDE://:9194
      #KAFKA_ADVERTISED_LISTENERS=INSIDE://<container>:9092,OUTSIDE://<host>:9094
      KAFKA_ADVERTISED_LISTENERS: INSIDE://kafka2:9094,OUTSIDE://localhost:9194
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INSIDE
      KAFKA_ZOOKEEPER_CONNECT: zook1:2181,zook2:2181,zook3:2181
      ALLOW_PLAINTEXT_LISTENER : 'yes'
      JMX_PORT: 9999 #开放JMX监控端口,来监测集群数据
    volumes:
      - /Users/konsy/Development/volume/kafka/kafka2/wurstmeister/kafka:/wurstmeister/kafka
      - /Users/konsy/Development/volume/kafka/kafka2/kafka:/kafka
    external_links:
      - zook1
      - zook2
      - zook3
    networks:
      docker-net:
        ipv4_address: 172.20.10.15

  kafka3:
    image: docker.io/wurstmeister/kafka
    restart: always
    hostname: kafka3
    container_name: kafka3
    ports:
      - 9095:9095
      - 9195:9195
    environment:
      KAFKA_BROKER_ID: 3
      KAFKA_LISTENERS: INSIDE://:9095,OUTSIDE://:9195
      #KAFKA_ADVERTISED_LISTENERS=INSIDE://<container>:9092,OUTSIDE://<host>:9094
      KAFKA_ADVERTISED_LISTENERS: INSIDE://kafka3:9095,OUTSIDE://localhost:9195
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INSIDE
      KAFKA_ZOOKEEPER_CONNECT: zook1:2181,zook2:2181,zook3:2181
      ALLOW_PLAINTEXT_LISTENER : 'yes'
      JMX_PORT: 9999 #开放JMX监控端口,来监测集群数据
    volumes:
      - /Users/konsy/Development/volume/kafka/kafka3/wurstmeister/kafka:/wurstmeister/kafka
      - /Users/konsy/Development/volume/kafka/kafka3/kafka:/kafka
    external_links:
      - zook1
      - zook2
      - zook3
    networks:
      docker-net:
        ipv4_address: 172.20.10.16
networks:
  docker-net:
    external:
      name: docker-net

2. 执行脚本部署kafka至Docker:

docker compose -f ./kafka-docker-compose.yml up -d

3. listeners 和 advertised.listeners

比如说:

   listeners: INSIDE://172.17.0.10:9092,OUTSIDE://172.17.0.10:9094
   advertised_listeners: INSIDE://172.17.0.10:9092,OUTSIDE://<公网 ip>:端口
   kafka_listener_security_protocol_map: "INSIDE:SASL_PLAINTEXT,OUTSIDE:SASL_PLAINTEXT"
   kafka_inter_broker_listener_name: "INSIDE"

advertised_listeners 监听器会注册在 zookeeper 中;

当我们对 172.17.0.10:9092 请求建立连接,kafka 服务器会通过 zookeeper 中注册的监听器,找到 INSIDE 监听器,然后通过 listeners 中找到对应的 通讯 ip 和 端口;

同理,当我们对 <公网 ip>:端口 请求建立连接,kafka 服务器会通过 zookeeper 中注册的监听器,找到 OUTSIDE 监听器,然后通过 listeners 中找到对应的 通讯 ip 和 端口 172.17.0.10:9094;

总结:advertised_listeners 是对外暴露的服务端口,真正建立连接用的是 listeners。

4.安装kafka-manager

4.1 新建文件kafka-manager-docker-compose.yml

version: '2'

services:
  kafka-manager:
    image: scjtqs/kafka-manager:latest
    restart: always
    hostname: kafka-manager
    container_name: kafka-manager
    ports:
      - 9000:9000
    external_links:  # 连接本compose文件以外的container
      - zook1
      - zook2
      - zook3
      - kafka1
      - kafka2
      - kafka3
    environment:
      ZK_HOSTS: zook1:2181,zook2:2181,zook3:2181
      KAFKA_BROKERS: kafka1:9093,kafka2:9094,kafka3:9095
      APPLICATION_SECRET: letmein
      KM_ARGS: -Djava.net.preferIPv4Stack=true
    networks:
      docker-net:
        ipv4_address: 172.20.10.10
networks:
  docker-net:
    external:
      name: docker-net

4.2 执行脚本部署kafka-manager至Docker:

docker compose -f ./kafka-manager-docker-compose.yml up -d

4.3 配置Cluster

5. 测试kafka

5.1连接容器

进入kafka容器的命令行:

docker exec -ti kafka /bin/bash

进入kafka所在目录:

cd opt/kafka_2.13-2.8.1/

5.2 创建Replication为2,Partition为2的topic

bin/kafka-topics.sh --create --zookeeper zook1:2181 --replication-factor 2 --partitions 2 --topic partopic

5.3 查看topic的状态

在kafka容器中的 opt/kafka_2.12-1.1.0/ 目录下输入

bin/kafka-topics.sh --describe --zookeeper zook1:2181 --topic partopic

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