【Docker部署Redis集群】分片+高可用+负载均衡

一、搭建架构

1.1 准备工作

6台Redis

1.2 创建网卡

docker network create redis --subnet 172.38.0.0/16
docker network
docker network inspect redis

1.3 创建redis的6个配置文件

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 172.38.0.1${port}
cluster-announce-port 6379
cluster-announce-bus-port 16379
appendonly yes
EOF
done

1.4 启动6个redis服务

docker run -p 6371:6379 -p 16371:16379 --name redis-1 \
-v /mydata/redis/node-1/data:/data \
-v /mydata/redis/node-1/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.11 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis-conf

docker run -p 6372:6379 -p 16372:16379 --name redis-2 \
-v /mydata/redis/node-2/data:/data \
-v /mydata/redis/node-2/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.12 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis-conf

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以上的命令 -v为数据卷技术 数据同步到centos中

1.5 配置集群

docker exec -it redis-1 /bin/sh

redis-cli --cluster create 172.038.0.11:6379  172.38.0.12:6379  172.38.0.13:6379  172.38.0.14:6379  172.38.0.15:6379  172.38.0.16:6379  --cluster-replicas  1

1.6 测试

redis-cli  -c  
cluster  info

1.7 宕机测试

docker stop redis-3

模拟故障

主机转移