搭建redis-cluster

我就是我 2022-02-28 14:00 220阅读 0赞

# 搭建redis-cluster #

*  **1. redis容器初始化**

mkdir redis-cluster
    cd redis-cluster
    vi Dockerfile

*  **Dockerfile内容如下：**

#基础镜像
    FROM redis
    #修复时区
    RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
    RUN echo 'Asia/Shanghai' >/etc/timezone
    #环境变量
    ENV REDIS_PORT 8000
    #ENV REDIS_PORT_NODE 18000
    #暴露变量
    EXPOSE $REDIS_PORT
    #EXPOSE $REDIS_PORT_NODE
    #复制
    COPY entrypoint.sh /usr/local/bin/
    COPY redis.conf /usr/local/etc/
    #for config rewrite
    RUN chmod 777 /usr/local/etc/redis.conf
    RUN chmod +x /usr/local/bin/entrypoint.sh
    #入口
    ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
    #命令
    CMD ["redis-server", "/usr/local/etc/redis.conf"]

*  **[编写shell文件entrypoint.sh][shell_entrypoint.sh]**

#!/bin/sh
    #只作用于当前进程,不作用于其创建的子进程
    set -e
    #$0--Shell本身的文件名 $1--第一个参数 $@--所有参数列表
    # allow the container to be started with `--user`
    if [ "$1" = 'redis-server' -a "$(id -u)" = '0' ]; then
        sed -i 's/REDIS_PORT/'$REDIS_PORT'/g' /usr/local/etc/redis.conf
        chown -R redis .  #改变当前文件所有者
        exec gosu redis "$0" "$@"  #gosu是sudo轻量级”替代品”
    fi
    
    exec "$@"

*  **编写redis.conf**

#端口
    port REDIS_PORT
    #开启集群
    cluster-enabled yes
    #配置文件
    cluster-config-file nodes.conf
    cluster-node-timeout 5000
    #更新操作后进行日志记录
    appendonly yes
    #设置主服务的连接密码
    # masterauth
    #设置从服务的连接密码
    # requirepass
    # bind 127.0.0.1
    protected-mode no

*  **编写docker-compose.yml文件**

version: '3'
    
    services:
        redis1:
            build: ./
            restart: always
            volumes:
                - ./data/redis/8001/data:/data
            environment:
                - REDIS_PORT=8001
            ports:
                - '8001:8001'       #服务端口
                - '18001:18001'   #集群端口
    
        redis2:
            build: ./
            restart: always
            volumes:
                - ./data/redis/8002/data:/data
            environment:
                - REDIS_PORT=8002
            ports:
                - '8002:8002'
                - '18002:18002'
    
        redis3:
            build: ./
            restart: always
            volumes:
                - ./data/redis/8003/data:/data
            environment:
                - REDIS_PORT=8003
            ports:
                - '8003:8003'
                - '18003:18003'
              
        redis4:
            build: ./
            restart: always
            volumes:
                - ./data/redis/8004/data:/data
            environment:
                - REDIS_PORT=8004
            ports:
                - '8004:8004'
                - '18004:18004'
        redis5:
            build: ./
            restart: always
            volumes:
                - ./data/redis/8005/data:/data
            environment:
                - REDIS_PORT=8005
            ports:
                - '8005:8005'
                - '18005:18005'
        redis6:
            build: ./
            restart: always
            volumes:
                - ./data/redis/8006/data:/data
            environment:
                - REDIS_PORT=8006
            ports:
                - '8006:8006'

*  **创建镜像**

后台进程
    docker-compose up -d
    重新创建
    docker-compose up --build

*  **进入容器查看集群信息**

docker exec -it cfe80afb8314 bash
    redis-cli -c -p 8003
    cluster info

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1bHZlamllMDE0Mw_size_16_color_FFFFFF_t_70]  
从上面的日志里看到，当前集群状态失败。

*  **2. redis容器集群配置**

docker run --rm -it inem0o/redis-trib create --replicas 1 你的ip:8001 你的ip:8002 你的ip:8003 你的ip:8004 你的ip:8005 你的ip:8006

再次查看  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1bHZlamllMDE0Mw_size_16_color_FFFFFF_t_70 1]  
已经成功搭建集群。

*  **设置集群密码**  
    每个节点逐一配置

docker exec -it 7b43e8c80052 bash
    redis-cli -c -p 8002
    config set masterauth 123456
    config set requirepass 123456
    auth 123456
    config rewrite

![在这里插入图片描述][20190326104611600.png]

*  **查看密码文件（进入容器）**  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1bHZlamllMDE0Mw_size_16_color_FFFFFF_t_70 2]  
    已经成功了。。。。。。。

[shell_entrypoint.sh]: http://xn--shellentrypoint-lm6xy14abo4gzq3e.sh
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1bHZlamllMDE0Mw_size_16_color_FFFFFF_t_70]: /images/20220228/3d0df6868d064927b7db795c187f0eec.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1bHZlamllMDE0Mw_size_16_color_FFFFFF_t_70 1]: /images/20220228/168a9b32a60a41d8b4fd326065ece98c.png
[20190326104611600.png]: /images/20220228/cb728f4e2f8a4ad3b4d7a1d6e95e1b22.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1bHZlamllMDE0Mw_size_16_color_FFFFFF_t_70 2]: /images/20220228/6cb76867017a4cd585d7ae02d82c76f7.png