整個集群可以分為一個master，N個slave，M個sentinel，本次以2個slave和3個sentinel為例：

首先增加redis.conf

##redis.conf ##redis-0,默認為masterport $redis_port ##授權密碼，請各個配置保持一致 ##暫且禁用指令重命名 ##rename-command ##開啟AOF，禁用snapshotappendonly yes #slaveof redis-master $master_portslave-read-only yes

默認為master，#slaveof注釋去掉後變為slave，這裡固化了master的域名redis-master。
增加sentinel.conf

 port $sentinel_portdir  "hljs-string""/tmp" ##sentinel監控的redis的名字、IP和端口，最後一個數字是sentinel做決策的時候需要投贊同票的最少的sentinel的數量。sentinel "hljs-instruction" monitor mymaster redis-master $master_port 2 ##選項指定了在執行故障轉移時， 最多可以有多少個從服務器同時對新的主服務器進行同步， 這個數字越小， 完成故障轉移所需的時間就越長。sentinel config-epoch mymaster 1sentinel leader-epoch mymaster 1sentinel current-epoch 1

增加啟動腳本，根據入參判斷啟動master，slave，sentinel

  cd /dataredis_role= "hljs-variable"$1echo  "hljs-variable"$redis_role if [  "hljs-variable"$redis_role =  "hljs-string""master" ] ;  then    echo  "hljs-string""master"     sed -i  "hljs-string""s/\$redis_port/ "hljs-variable"$redis_port/g" redis.conf    redis-server /data/redis.conf elif [  "hljs-variable"$redis_role =  "hljs-string""slave" ] ;  then       echo  "hljs-string""slave"     sed -i  "hljs-string""s/\$redis_port/ "hljs-variable"$redis_port/g" redis.conf    sed -i  "hljs-string""s/#slaveof/slaveof/g" redis.conf    sed -i  "hljs-string""s/\$master_port/ "hljs-variable"$master_port/g" redis.conf    redis-server /data/redis.conf elif [  "hljs-variable"$redis_role =  "hljs-string""sentinel" ] ;  then     echo  "hljs-string""sentinel"     sed -i  "hljs-string""s/\$sentinel_port/ "hljs-variable"$sentinel_port/g" sentinel.conf    sed -i  "hljs-string""s/\$master_port/ "hljs-variable"$master_port/g" sentinel.conf    redis-sentinel /data/sentinel.conf else     echo  "hljs-string""unknow role!"  fi      #ifend

其中$redis_port和$master_port,$sentinel_port都是取自環境變量，通過Docker啟動時候傳入。
編寫Dockerfile

  FROM redis:3-alpineMAINTAINER voidman voidmanCOPY  "bash"Shanghai /etc/localtimeCOPY  "bash"redis.conf /data/redis.confCOPY  "bash"sentinel.conf /data/sentinel.confCOPY  "bash"start.sh /data/start.shRUN  "bash"chmod +x /data/start.shRUN  "bash"chown redis:redis /data/*ENTRYPOINT  "bash"[ "hljs-string""sh", "hljs-string""/data/start.sh"] CMD  "bash"[ "hljs-string""master"]

選取redis-alpine鏡像作為基礎鏡像，因為它非常小，只有9M，修改時區和把一些配置拷貝進去後，變更下權限和用戶組，因為基礎鏡像是redis用戶組。ENTRYPOINT和CMD組合，默認以master方式啟動。
build完成後，鏡像只有15M。

redis-master-host:  environment:    redis_port:  "hljs-string"'16379'  labels:    io "hljs-class".rancher "hljs-class".container "hljs-class".pull_image: always  tty: true  image: xxx "hljs-class".aliyun "hljs-class".com:5000/aegis-redis-ha:1.0  stdin_open: true  net: hostredis-slaves:  environment:    master_port:  "hljs-string"'16379'    redis_port:  "hljs-string"'16380'  labels:    io "hljs-class".rancher "hljs-class".scheduler "hljs-class".affinity:container_label_soft_ne: name=slaves    io "hljs-class".rancher "hljs-class".container "hljs-class".pull_image: always    name: slaves  tty: true  command:  - slave  image: xxx "hljs-class".aliyun "hljs-class".com:5000/aegis-redis-cluster:1.0  stdin_open: true  net: hostredis-sentinels:  environment:    master_port:  "hljs-string"'16379'    sentinel_port:  "hljs-string"'16381'  labels:    io "hljs-class".rancher "hljs-class".container "hljs-class".pull_image: always    name: sentinels    io "hljs-class".rancher "hljs-class".scheduler "hljs-class".affinity:container_label_ne: name=sentinels  tty: true  command:  - sentinel  image: xxx "hljs-class".aliyun "hljs-class".com:5000/aegis-redis-cluster:1.0  stdin_open: true  net: host