Redis集群官方介绍：http://www.redis.cn/topics/cluster-tutorial.html

基于Docker搭建Redis集群

环境：6个节点，三主三从

制作Redis镜像：docker build -f dockerfile -t jiang/redis-cluster:4.0.1 .

dockerfile文件：

FROM redis:4.0.1ENV TZ=Asia/ShanghaiRUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezoneRUN mkdir /usr/local/etc/redis && chown redis:redis /usr/local/etc/redisENV REDIS_C=/usr/local/etc/redisRUN echo "port 6379" > $REDIS_C/redis.confRUN echo "cluster-enabled yes" >> $REDIS_C/redis.confRUN echo "cluster-config-file nodes.conf" >> $REDIS_C/redis.confRUN echo "cluster-node-timeout 5000" >> $REDIS_C/redis.confRUN echo "appendonly yes" >> $REDIS_C/redis.confCMD [ "redis-server", "/usr/local/etc/redis/redis.conf" ]

 

制作Ruby镜像：docker build -f dockerfile2 -t jiang/my_ruby:2.4 .

dockerfile2文件：

FROM ruby:2.4RUN gem install redisADD ./redis-4.0.1.tgz /usr/localRUN cd /usr/local && ln -sf redis-4.0.1 redis

 

分别启动6个节点实例:

docker run --name redis7000 -p 7000:6379 -d jiang/redis-cluster:4.0.1docker run --name redis7001 -p 7001:6379 -d jiang/redis-cluster:4.0.1docker run --name redis7002 -p 7002:6379 -d jiang/redis-cluster:4.0.1docker run --name redis7003 -p 7003:6379 -d jiang/redis-cluster:4.0.1docker run --name redis7004 -p 7004:6379 -d jiang/redis-cluster:4.0.1docker run --name redis7005 -p 7005:6379 -d jiang/redis-cluster:4.0.1

 

查看6个节点的容器IP

docker inspect --format='{
   {.NetworkSettings.IPAddress}}' redis7000docker inspect --format='{
   {.NetworkSettings.IPAddress}}' redis7001docker inspect --format='{
   {.NetworkSettings.IPAddress}}' redis7002docker inspect --format='{
   {.NetworkSettings.IPAddress}}' redis7003docker inspect --format='{
   {.NetworkSettings.IPAddress}}' redis7004docker inspect --format='{
   {.NetworkSettings.IPAddress}}' redis7005

 

启动Ruby容器，进入/bin/bash，创建redis集群

docker run -it jiang/my_ruby:2.4 /bin/bash# /usr/local/redis/src/redis-trib.rb create --replicas 1 172.17.0.2:6379 172.17.0.3:6379 172.17.0.4:6379 172.17.0.5:6379 172.17.0.6:6379 172.17.0.7:6379出现下面显示说明集群创建成功：[OK] All nodes agree about slots configuration.[OK] All 16384 slots covered.

 

宿主机上利用redis客户端简单测试：

./redis-cli -c -p 7000

cluster info查看集群信息：

cluster nodes查看集群中各节点信息