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docker-compose启动redis多机集群的实现(6台服务器3主3从)

docker-composeredis多机集群 docker-composeredis集群 2022-07-13 16:07:10 256人浏览八月长安

摘要

目录1. 环境说明2. 集群部署Redis-node-1redis-node-2redis-node-3redis-node-4redis-node-5redis-node-63. 初始化4. 测试1. 环境说明节点I

1. 环境说明

节点	IP
redis-node-1	10.10.239.31
redis-node-2	10.10.239.32
redis-node-3	10.10.239.33
redis-node-4	10.10.239.34
redis-node-5	10.10.239.35
redis-node-6	10.10.239.36

2. 集群部署

redis-node-1

yml 文件

version: '2.2'
services:
  redis-node-1:
    image: bitnami/redis-cluster:7.0
    restart: always
    container_name: redis-node-1
    network_mode: "host"
    volumes:
      - ./redis-cluster_data-1:/bitnami/redis/data
    environment:
      - 'REDIS_PASSWord=liubei@161'
      - 'REDIS_NODES=10.10.239.31 10.10.239.32 10.10.239.33 10.10.239.34 10.10.239.35 10.10.239.36'

持久化存储

因为容器中执行初始化的不是root用户，自动创建挂载文件权限一般会有问题。我这里容器中执行初始化的用户对应宿主机ID是1001的用户，因此提前给了权限（当然你也可以直接给777权限，但不建议）。
如果你不是这个用户，可以先给777权限。等容器启动后看初始化后的文件属主是谁，就把该目录的属主改成谁，然后改回755或750权限。

[root@liubei-01 redis-cluster]# mkdir ./redis-cluster_data-1
[root@liubei-01 redis-cluster]# chown 1001  ./redis-cluster_data-1

启动

[root@liubei-01 redis-cluster]# Docker-compose up -d

查看结果

[root@liubei-01 redis-cluster]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------------------
redis-node-1 /opt/bitnami/scripts/redis ... Up

redis-node-2

version: '2.2'
services:
  redis-node-2:
    image: bitnami/redis-cluster:7.0
    restart: always
    container_name: redis-node-2
    network_mode: "host"
    volumes:
      - ./redis-cluster_data-2:/bitnami/redis/data
    environment:
      - 'REDIS_PASSWORD=liubei@161'
      - 'REDIS_NODES=10.10.239.31 10.10.239.32 10.10.239.33 10.10.239.34 10.10.239.35 10.10.239.36'

持久化存储

[root@liubei-02 redis-cluster]# mkdir ./redis-cluster_data-2
[root@liubei-02 redis-cluster]# chown 1001  ./redis-cluster_data-2

启动

[root@liubei-02 redis-cluster]# docker-compose up -d

查看结果

[root@liubei-02 redis-cluster]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------------------
redis-node-2 /opt/bitnami/scripts/redis ... Up

redis-node-3

version: '2.2'

services:
  redis-node-3:
    image: bitnami/redis-cluster:7.0
    restart: always
    container_name: redis-node-3
    network_mode: "host"
    volumes:
      - ./redis-cluster_data-3:/bitnami/redis/data
    environment:
      - 'REDIS_PASSWORD=liubei@161'
      - 'REDIS_NODES=10.10.239.31 10.10.239.32 10.10.239.33 10.10.239.34 10.10.239.35 10.10.239.36'

持久化存储

[root@liubei-03 redis-cluster]# mkdir ./redis-cluster_data-3
[root@liubei-03 redis-cluster]# chown 1001  ./redis-cluster_data-3

启动

[root@liubei-03 redis-cluster]# docker-compose up -d

查看结果

[root@liubei-03 redis-cluster]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------------------
redis-node-3 /opt/bitnami/scripts/redis ... Up

redis-node-4

version: '2.2'
services:
  redis-node-2:
    image: bitnami/redis-cluster:7.0
    restart: always
    container_name: redis-node-4
    network_mode: "host"
    volumes:
      - ./redis-cluster_data-4:/bitnami/redis/data
    environment:
      - 'REDIS_PASSWORD=liubei@161'
      - 'REDIS_NODES=10.10.239.31 10.10.239.32 10.10.239.33 10.10.239.34 10.10.239.35 10.10.239.36'

持久化存储

[root@liubei-04 redis-cluster]# mkdir ./redis-cluster_data-4
[root@liubei-04 redis-cluster]# chown 1001  ./redis-cluster_data-4

启动

[root@liubei-04 redis-cluster]# docker-compose up -d

查看结果

[root@liubei-04 redis-cluster]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------------------
redis-node-4 /opt/bitnami/scripts/redis ... Up

redis-node-5

version: '2.2'

services:
  redis-node-5:
    image: bitnami/redis-cluster:7.0
    restart: always
    container_name: redis-node-5
    network_mode: "host"
    volumes:
      - ./redis-cluster_data-5:/bitnami/redis/data
    environment:
      - 'REDIS_PASSWORD=liubei@161'
      - 'REDIS_NODES=10.10.239.31 10.10.239.32 10.10.239.33 10.10.239.34 10.10.239.35 10.10.239.36'

持久化存储

[root@liubei-05 redis-cluster]# mkdir ./redis-cluster_data-5
[root@liubei-05 redis-cluster]# chown 1001  ./redis-cluster_data-5

启动

[root@liubei-05 redis-cluster]# docker-compose up -d

查看结果

[root@liubei-05 redis-cluster]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------------------
redis-node-5 /opt/bitnami/scripts/redis ... Up

redis-node-6

version: '2.2'

services:
  redis-node-6:
    image: bitnami/redis-cluster:7.0
    restart: always
    container_name: redis-node-6
    network_mode: "host"
    volumes:
      - ./redis-cluster_data-6:/bitnami/redis/data
    environment:
      - 'REDIS_PASSWORD=liubei@161'
      - 'REDIS_NODES=10.10.239.31 10.10.239.32 10.10.239.33 10.10.239.34 10.10.239.35 10.10.239.36'

持久化存储

[root@liubei-06 redis-cluster]# mkdir ./redis-cluster_data-6
[root@liubei-06 redis-cluster]# chown 1001  ./redis-cluster_data-6

启动

[root@liubei-06 redis-cluster]# docker-compose up -d

查看结果

[root@liubei-06 redis-cluster]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------------------------
redis-node-6 /opt/bitnami/scripts/redis ... Up

3. 初始化

 redis-cli -h 10.10.239.31 -a liubei@161 --cluster create 10.10.239.31:6379 10.10.239.32:6379 10.10.239.33:6379 10.10.239.34:6379 10.10.239.35:6379 10.10.239.36:6379 --cluster-replicas 1

输出结果和状态查看参考另一篇文档《docker-compose启动redis伪集群》初始化部分。

4. 测试

I have no name!@0fc49662e765:/$ redis-cli -h 10.10.239.31 -a liubei@161 -c
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
10.10.239.31:6379> set name liubei
-> Redirected to slot [5798] located at 10.10.239.35:6379
OK
10.10.239.35:6379> get name
"liubei"
10.10.239.35:6379>

说明：
进入10.10.239.31的redis容器，从该节点进入集群，写入数据。
显示写入在 10.10.239.35 这个节点
同时我们的连接也跳到了这个节点。
我们读一下，读到了数据。
换一个节点连接，效果相同。

可参考另一篇文档《docker-compose启动redis伪集群》测试部分。

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