Docker部署Redis集群(主从复制 高可用)

环境 vmware12+centos7

关于环境安装可以参考我的另一篇博客 https://www.cnblogs.com/pengboke/p/13063168.html

1.清理环境

我这里用的虚拟机所以我把docker的镜像和容器都清空

docker kill $(docker ps -a -q)

docker rm $(docker ps -a)

docker rmi -f $(docker images -q)

2.创建网卡

docker network create redis --subnet 172.188.0.0/16

3.通过脚本创建6个redis配置

for port in $(seq 1 6);\
do \
mkdir -p /mydata/redis/node-${port}/conf
touch /mydata/redis/node-${port}/conf/redis.conf
cat << EOF >> /mydata/redis/node-${port}/conf/redis.conf
port 6379
bind 0.0.0.0
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
cluster-announce-ip 172.188.0.1${port}
cluster-announce-port 6379
cluster-announce-bus-port 16379
appendonly yes
EOF
done

4.通过脚本运行6个redis

for port in $(seq 1 6);\
do \
docker run -p 637${port}:6379 -p 1667${port}:16379 --name redis-${port} \
-v /mydata/redis/node-${port}/data:/data \
-v /mydata/redis/node-${port}/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.188.0.1${port} redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf
done

5.创建集群

5.1 进入redis-1中

docker exec -it redis-1 /bin/sh #redis默认没有bash

5.2 配置集群

redis-cli --cluster create 172.188.0.11:6379 172.188.0.12:6379 172.188.0.13:6379 172.188.0.14:6379 172.188.0.15:6379 172.188.0.16:6379 --cluster-replicas 1

6.查看

redis-cli -c

cluster info

cluster nodes