一台云主机怎么搭建Kafka集群？[基于Docker]

前提：

1. 首先服务器内存，建议在4G以上。
2. 安装docker、docker-compose
3. 服务器执行curl cip.cc查看公网IP

docker-compose 一键运行yml

将下面的内容中的[your server ip] ——替换成——> 你的公网ip

version: "3.1"
networks:
  zk-net: # 网络名
    name: zk-net
    driver: bridge

services:
  # zookeeper集群
  zoo1:
    image: zookeeper:3.8.0
    container_name: zoo1 # 容器名称
    restart: always # 开机自启
    hostname: zoo1 # 主机名
    ports:
      - 2181:2181 # 端口号
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181
    networks:
      - zk-net
  zoo2:
    image: zookeeper:3.8.0
    container_name: zoo2
    restart: always
    hostname: zoo2
    ports:
      - 2182:2181
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181
    networks:
      - zk-net
  zoo3:
    image: zookeeper:3.8.0
    container_name: zoo3
    restart: always
    hostname: zoo3
    ports:
      - 2183:2181
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181
    networks:
      - zk-net
  # kafka集群
  kafka1:
    image: "bitnami/kafka:3.0.0"
    container_name: kafka1
    hostname: kafka1
    networks:
      - zk-net
    ports:
      - "9092:9092"
    environment:
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zoo1:2181,zoo2:2182,zoo3:2183/kafka
      - KAFKA_BROKER_ID=1
      - KAFKA_CFG_LISTENERS=PLAINTEXT://:9092
      - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://[your server ip]:9092
      - ALLOW_PLAINTEXT_LISTENER=yes
    depends_on:
      - zoo1
      - zoo2
      - zoo3
  kafka2:
    image: "bitnami/kafka:3.0.0"
    container_name: kafka2
    hostname: kafka2
    networks:
      - zk-net
    ports:
      - "9093:9093"
    environment:
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zoo1:2181,zoo2:2182,zoo3:2183/kafka
      - KAFKA_BROKER_ID=2
      - KAFKA_CFG_LISTENERS=PLAINTEXT://:9093
      - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://[your server ip]:9093
      - ALLOW_PLAINTEXT_LISTENER=yes
    depends_on:
      - zoo1
      - zoo2
      - zoo3
  kafka3:
    image: "bitnami/kafka:3.0.0"
    container_name: kafka3
    hostname: kafka3
    networks:
      - zk-net
    ports:
      - "9094:9094"
    environment:
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zoo1:2181,zoo2:2182,zoo3:2183/kafka
      - KAFKA_BROKER_ID=3
      - KAFKA_CFG_LISTENERS=PLAINTEXT://:9094
      - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://[your server ip]:9094
      - ALLOW_PLAINTEXT_LISTENER=yes
    depends_on:
      - zoo1
      - zoo2
      - zoo3

最后一键执行

docker-compose -f [xxx.yml] up -d

查看是否运行成功：docker-compose ps