手把手教你基于docker容器搭建redis集群

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1、创建【redis.conf】配置文件模板redis-cluster.tmpl

vim /usr/local/redis_docker/redis-cluster.tmpl

#设置外部网络连接redis服务，默认是yes，即开启。开启protected-mode保护模式，需配置bind ip或者设置访问密码，关闭protected-mode模式，此时外部网络可以直接访问

protected-mode no

#节点端口

port ${PORT}

#指定redis是否要用守护线程的方式启动，默认no

daemonize no

#持久化模式

appendonly yes

#cluster集群模式

cluster-enabled yes

#集群配置名

cluster-config-file nodes.conf

#超时时间

cluster-node-timeout 15000

#实际为各节点网卡分配ip

cluster-announce-ip 172.18.0.${TEMP}

#节点映射端口

cluster-announce-port ${PORT}

#节点总线端

cluster-announce-bus-port 1${PORT}

2、创建自定义网桥redis-net

docker network create redis-net

查看自定义网桥

docker network ls

3、创建Redis集群并启动6个实例

vim /usr/local/redis_docker/redisClusterDeploy.sh

#!/bin/bash

for port in `seq 7001 7006`; do base=6999 && ip=$[port-base] && mkdir -p ${port}/conf && PORT=${port} TEMP=${ip} envsubst < redis-cluster.tmpl > ${port}/conf/redis.conf && mkdir -p ${port}/data; done

for port in `seq 7001 7006`; do

docker run -p ${port}:${port} -p 1${port}:1${port} –name redis-${port} -v /usr/local/redis_docker/${port}/conf/redis.conf:/usr/local/redis/redis.conf -v /usr/local/redis_docker/${port}/data:/data –name redis-${port} –network redis-net -d redis_prod:6.0.5 redis-server /usr/local/redis/redis.conf

done

4、查看容器启动情况

sudo docker ps -a

5、查看容器日志

sudo docker logs -f [CONTAINER ID]

6、查看容器内网下关联的IP

sudo docker inspect 68eb833b4ff8 | grep IPAddress

7、创建redis-cluster集群

(1) 进入其中一个实例

docker exec -it redis-7001 bash

(2) 执行如下命令搭建集群

/usr/local/bin/redis-cli –cluster create 172.18.0.2:7001 172.18.0.3:7002 172.18.0.4:7003 172.18.0.5:7004 172.18.0.6:7005 172.18.0.7:7006 –cluster-replicas 1

8、测试

(1) 在127.18.0.2:7001中set key

docker exec -it redis-7001 /usr/local/bin/redis-cli -c -h 127.18.0.2 -p 7001

>set aaa 111

(2) 在172.18.0.3:7002中get key

docker exec -it redis-7002 /usr/local/bin/redis-cli -c -h 127.18.0.3 -p 7002

>get aaa