zookeeper docker集群如何进行配置

配置Zookeeper Docker集群涉及几个关键步骤，包括环境准备、Docker Compose配置、以及集群的启动和验证。下面是详细的配置指南：

环境准备

确保你已经安装了Docker和Docker Compose。在CentOS 7上，你可以通过以下命令安装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

创建一个zk-docker-compose.yml文件，内容如下：

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

启动Zookeeper集群

在包含zk-docker-compose.yml文件的目录中，运行以下命令启动集群：

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

验证Zookeeper集群

启动集群后，你可以使用Zookeeper客户端工具连接到任意一个节点，使用命令ls /查看集群状态。

通过以上步骤，你应该能够成功配置并运行一个Zookeeper Docker集群。记得根据实际情况调整配置文件中的IP地址和端口映射。