docker部署redis集群

redis集群部署

##创建网卡
docker network create redis --subnet 172.38.0.0/16

##通过脚本创建六个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 172.38.0.1${port}
cluster-announce-port 6379
cluster-announce-bus-port 16379
appendonly yes
EOF
done

###启动
###redis-1
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

###redis-2
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

docker run -p 6376:6379 -p 16376:16379 --name redis-6 
-v /mydata/redis/node-6/data:/data 
-v /mydata/redis/node-6/conf/redis.conf:/etc/redis/redis.conf 
-d --net redis --ip 172.38.0.16 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

root@qsrobot:~# docker exec -it redis-1 /bin/sh
/data # ls
appendonly.aof  nodes.conf
/data # redis-cli --cluster create 172.38.0.11:6379 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

创建集群

root@qsrobot:~# docker exec -it redis-1 /bin/sh
/data # redis-cli -c
127.0.0.1:6379> get a
-> Redirected to slot [15495] located at 172.38.0.14:6379
"b"

 开始的时候1,2,3是主机，4,5,6是从机 存数据，redis-3接收

把3停止 4变成主机顶上 高可用