基于Docker搭建Redis Cluster ，三主三从的配置

男娘i 2022-04-03 12:38 185阅读 0赞

基于Docker搭建Redis Cluster

#### 1. 规划网络配置 ####

首先创建redis集群的网络

docker network create --subnet=192.168.200.0/24 redisclusternet

<table> 
 <thead> 
  <tr> 
   <th>ip</th> 
   <th>port</th> 
   <th>remark</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>192.168.200.11</td> 
   <td>7001</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>192.168.200.12</td> 
   <td>7002</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>192.168.200.13</td> 
   <td>7003</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>192.168.200.14</td> 
   <td>7004</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>192.168.200.15</td> 
   <td>7005</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>192.168.200.16</td> 
   <td>7006</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

#### 2. 运行redis ####

采用docker-compose运行集群

docker-compose的安装： [https://docs.docker.com/compose/install/\#install-compose][https_docs.docker.com_compose_install_install-compose]

version: '2.3'
    
    x-image:
      &default-image
      redis:4.0.11
    
    services:
      redis7001:
        image: *default-image
        container_name: redis7001
        command:
          ["redis-server", "/home/redis/cluster/7001/redis.conf"]
        networks:
          redisclusternet:
            ipv4_address: 192.168.200.11
        volumes:
          - /home/redis/cluster/7001/redis.conf:/home/redis/cluster/7001/redis.conf
          - /home/redis-cluster/7001/data:/data
        ports:
          - 7001:7001
          - 17001:17001
      redis7002:
        image: *default-image
        container_name: redis7002
        command:
          ["redis-server", "/home/redis/cluster/7002/redis.conf"]
        networks:
          redisclusternet:
            ipv4_address: 192.168.200.12
        volumes:
          - /home/redis/cluster/7002/redis.conf:/home/redis/cluster/7002/redis.conf
          - /home/redis-cluster/7002/data:/data
        ports:
          - 7002:7002
          - 17002:17002
      redis7003:
        image: *default-image
        container_name: redis7003
        command:
          ["redis-server", "/home/redis/cluster/7003/redis.conf"]
        networks:
          redisclusternet:
            ipv4_address: 192.168.200.13
        volumes:
          - /home/redis/cluster/7003/redis.conf:/home/redis/cluster/7003/redis.conf
          - /home/redis-cluster/7003/data:/data
        ports:
          - 7003:7003
          - 17003:17003
      redis7004:
          image: *default-image
          container_name: redis7004
          command:
            ["redis-server", "/home/redis/cluster/7004/redis.conf"]
          networks:
              redisclusternet:
                ipv4_address: 192.168.200.14
          volumes:
              - /home/redis/cluster/7004/redis.conf:/home/redis/cluster/7004/redis.conf
              - /home/redis-cluster/7004/data:/data
          ports:
              - 7004:7004
              - 17004:17004
      redis7005:
          image: *default-image
          container_name: redis7005
          command:
            ["redis-server", "/home/redis/cluster/7005/redis.conf"]
          networks:
              redisclusternet:
                ipv4_address: 192.168.200.15
          volumes:
              - /home/redis/cluster/7005/redis.conf:/home/redis/cluster/7005/redis.conf
              - /home/redis-cluster/7005/data:/data
          ports:
              - 7005:7005
              - 17005:17005
      redis7006:
          image: *default-image
          container_name: redis7006
          command:
            ["redis-server", "/home/redis/cluster/7006/redis.conf"]
          networks:
              redisclusternet:
                ipv4_address: 192.168.200.16
          volumes:
              - /home/redis/cluster/7006/redis.conf:/home/redis/cluster/7006/redis.conf
              - /home/redis-cluster/7006/data:/data
          ports:
              - 7006:7006
              - 17006:17006
    networks:
       redisclusternet:
        external:
          name: redisclusternet

运行docker-compose up -d

注： -d 是后台运行

docker ps 查看一下，都正常跑起来了

#### 3. 使用redis.trib建立集群 ####

docker run --rm -it --net=redisclusternet --ip=192.168.200.21 inem0o/redis-trib create --replicas 1 192.168.200.11:7001 192.168.200.12:7002 192.168.200.13:7003 192.168.200.14:7004 192.168.200.15:7005 192.168.200.16:7006

这样集群就建立好了

#### 4. 进入redis查看集群信息 ####

可以看到已经完成3主3从的配置

[root@izwz90o0w65t1ogj9cpmiqz cluster]# docker exec -it redis7001 bash
    root@02ee84fd8e91:/data# redis-cli  -p 7001
    127.0.0.1:7001> CLUSTER NODES
    b226a5721b6f2745cfd4a5c09772225a9149f291 39.xxx.xxx.xxx:7001@17001 myself,master - 0 1542676938000 1 connected 0-5460
    48deb6fb7347d4ceddb72880f941572bbb79ed0f 39.xxx.xxx.xxx:7004@17004 slave b226a5721b6f2745cfd4a5c09772225a9149f291 0 1542676938533 4 connected
    135e87086dd9482ee5b4ffb3f82d952e26b8a448 39.xxx.xxx.xxx:7005@17005 slave e9bd4328e0b130d06984de8e0cb8478d099c27f4 0 1542676939234 5 connected
    e9bd4328e0b130d06984de8e0cb8478d099c27f4 39.xxx.xxx.xxx:7002@17002 master - 0 1542676938533 2 connected 5461-10922
    3755f9977426c893a5ad1197d2ee92cecafb28a1 39.xxx.xxx.xxx:7006@17006 slave 7e217c32570648155a37fa1c7dacaec5ecdc8c1d 0 1542676938233 6 connected
    7e217c32570648155a37fa1c7dacaec5ecdc8c1d 39.xxx.xxx.xxx:7003@17003 master - 0 1542676938000 3 connected 10923-16383

[https_docs.docker.com_compose_install_install-compose]: https://docs.docker.com/compose/install/#install-compose