zookeeper docker集群如何進行配置

配置Zookeeper Docker集群涉及幾個關鍵步驟，包括環境準備、Docker Compose配置、以及集群的啟動和驗證。下面是詳細的配置指南：

環境準備

確保你已經安裝了Docker和Docker Compose。在CentOS 7上，你可以通過以下命令安裝Docker和Docker Compose：

sudo yum install -y docker
sudo systemctl enable docker
sudo systemctl start docker
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

Docker Compose配置

創建一個zk-docker-compose.yml文件，內容如下：

version: '3.4'
services:
  zoo1:
    image: zookeeper:3.6.2
    container_name: zoo1
    ports:
      - "2181:2181"
      - "2888:2888"
      - "3888:3888"
    volumes:
      - "/opt/zookeeper/zkcluster/zoo1/data:/data"
      - "/opt/zookeeper/zkcluster/zoo1/datalog:/datalog"
      - "/opt/zookeeper/zkcluster/zoo1/logs:/logs"
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1 172.18.0.2:2888:3888;server.2 172.18.0.3:2888:3888;server.3 172.18.0.4:2888:3888
    networks:
      - zookeeper

  zoo2:
    image: zookeeper:3.6.2
    container_name: zoo2
    ports:
      - "2182:2181"
      - "2889:2888"
      - "3889:3888"
    volumes:
      - "/opt/zookeeper/zkcluster/zoo2/data:/data"
      - "/opt/zookeeper/zkcluster/zoo2/datalog:/datalog"
      - "/opt/zookeeper/zkcluster/zoo2/logs:/logs"
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1 172.18.0.2:2888:3888;server.2 172.18.0.3:2888:3888;server.3 172.18.0.4:2888:3888
    networks:
      - zookeeper

  zoo3:
    image: zookeeper:3.6.2
    container_name: zoo3
    ports:
      - "2183:2181"
      - "2890:2888"
      - "3890:3888"
    volumes:
      - "/opt/zookeeper/zkcluster/zoo3/data:/data"
      - "/opt/zookeeper/zkcluster/zoo3/datalog:/datalog"
      - "/opt/zookeeper/zkcluster/zoo3/logs:/logs"
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1 172.18.0.2:2888:3888;server.2 172.18.0.3:2888:3888;server.3 172.18.0.4:2888:3888
    networks:
      - zookeeper

networks:
  zookeeper:
    driver: bridge

啟動Zookeeper集群

在包含zk-docker-compose.yml文件的目錄中，運行以下命令啟動集群：

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

驗證Zookeeper集群

啟動集群后，你可以使用Zookeeper客戶端工具連接到任意一個節點，使用命令ls /查看集群狀態。

通過以上步驟，你應該能夠成功配置并運行一個Zookeeper Docker集群。記得根據實際情況調整配置文件中的IP地址和端口映射。