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

1. 环境说明

节点IPredis-node-110.10.239.31redis-node-210.10.239.32redis-node-310.10.239.33redis-node-410.10.239.34redis-node-510.10.239.35redis-node-610.10.239.36

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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