前言
由于本人是个docker控,不喜欢安装各种环境,而且安装redis-trib也有点繁琐,索性用docker来做redis cluster。
本文用的是伪集群,真正的集群放到不同的机器即可。端口是7001-7006。
工作目录: /data/redis
创建文件夹
首先创建一堆对应端口的文件夹,下面是脚本
create.sh
for i in `seq 7001 7006` do mkdir -p ${i}/data done
添加执行权限并执行
chmod 777 create.sh ./create.sh
部署redis
本人不喜欢docker run,所以用了docker-compose。官方文档 https://docs.docker.com/compose/overview/
创建docker-compose.yml
用publicisworldwide/redis-cluster镜像的原因是人家已经把配置文件写好了,配置文件没有挂载是懒,别学我
docker-compose.yml
version: '3.4' x-image: &default-image publicisworldwide/redis-cluster x-restart: &default-restart always x-netmode: &default-netmode host services: redis1: image: *default-image network_mode: *default-netmode restart: *default-restart volumes: - /data/redis/7001/data:/data environment: - REDIS_PORT=7001 redis2: image: *default-image network_mode: *default-netmode restart: *default-restart volumes: - /data/redis/7002/data:/data environment: - REDIS_PORT=7002 redis3: image: *default-image network_mode: *default-netmode restart: *default-restart volumes: - /data/redis/7003/data:/data environment: - REDIS_PORT=7003 redis4: image: *default-image network_mode: *default-netmode restart: *default-restart volumes: - /data/redis/7004/data:/data environment: - REDIS_PORT=7004 redis5: image: *default-image network_mode: *default-netmode restart: *default-restart volumes: - /data/redis/7005/data:/data environment: - REDIS_PORT=7005 redis6: image: *default-image network_mode: *default-netmode restart: *default-restart volumes: - /data/redis/7006/data:/data environment: - REDIS_PORT=7006
启动所有redis
docker-compose up -d
如果报错,那就是版本问题。
查看docker版本
docker -v
在文档中可查看docker版本支持的docker-compose.yml版本,为了方便大家查看,我复制出来了。不过一般来说,docker升级比较快,功能迭代也很快,最好还是用最新版本。
Compose file format | Docker Engine release |
---|---|
3.4 | 17.09.0+ |
3.3 | 17.06.0+ |
3.2 | 17.04.0+ |
3.1 | 1.13.1+ |
3.0 | 1.13.0+ |
2.3 | 17.06.0+ |
2.2 | 1.13.0+ |
2.1 | 1.12.0+ |
2.0 | 1.10.0+ |
1.0 | 1.9.1.+ |
部署cluster
运行以下命令(inem0o/redis-trib没有pull会自动pull)
注意:加上-it,不然后续的确认没法继续
docker run --rm -it inem0o/redis-trib create --replicas 1 192.168.30.70:7001 192.168.30.70:7002 192.168.30.70:7003 192.168.30.70:7004 192.168.30.70:7005 192.168.30.70:7006
会出现
>>> Creating cluster >>> Performing hash slots allocation on 6 nodes... Using 3 masters: 192.168.30.70:7001 192.168.30.70:7002 192.168.30.70:7003 Adding replica 192.168.30.70:7004 to 192.168.30.70:7001 Adding replica 192.168.30.70:7005 to 192.168.30.70:7002 Adding replica 192.168.30.70:7006 to 192.168.30.70:7003 M: 5a7bd7698b1fe55beb44faac051d66c8a03fd1b1 192.168.30.70:7001 slots:0-5460 (5461 slots) master M: bb8fda08e1dcd39e937443f81b5458e80f52d804 192.168.30.70:7002 slots:5461-10922 (5462 slots) master M: d907530ee9f6356e0e61a6c7f4d0cc1b22da1189 192.168.30.70:7003 slots:10923-16383 (5461 slots) master S: 52eee69afa751d71c84d5436d14b0e16a37536fa 192.168.30.70:7004 replicates 5a7bd7698b1fe55beb44faac051d66c8a03fd1b1 S: 701ed2fbb3df9fc63b083818620f5c020d05e323 192.168.30.70:7005 replicates bb8fda08e1dcd39e937443f81b5458e80f52d804 S: a3548a9dffa225f05786ea2289db65f5f1c623be 192.168.30.70:7006 replicates d907530ee9f6356e0e61a6c7f4d0cc1b22da1189 Can I set the above configuration? (type 'yes' to accept):
输入yes
Waiting for the cluster to join..... >>> Performing Cluster Check (using node 192.168.30.70:7001) M: 5a7bd7698b1fe55beb44faac051d66c8a03fd1b1 192.168.30.70:7001 slots:0-5460 (5461 slots) master 1 additional replica(s) M: d907530ee9f6356e0e61a6c7f4d0cc1b22da1189 192.168.30.70:7003@17003 slots:10923-16383 (5461 slots) master 1 additional replica(s) S: a3548a9dffa225f05786ea2289db65f5f1c623be 192.168.30.70:7006@17006 slots: (0 slots) slave replicates d907530ee9f6356e0e61a6c7f4d0cc1b22da1189 S: 701ed2fbb3df9fc63b083818620f5c020d05e323 192.168.30.70:7005@17005 slots: (0 slots) slave replicates bb8fda08e1dcd39e937443f81b5458e80f52d804 S: 52eee69afa751d71c84d5436d14b0e16a37536fa 192.168.30.70:7004@17004 slots: (0 slots) slave replicates 5a7bd7698b1fe55beb44faac051d66c8a03fd1b1 M: bb8fda08e1dcd39e937443f81b5458e80f52d804 192.168.30.70:7002@17002 slots:5461-10922 (5462 slots) master 1 additional replica(s) [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered.
完成。
遇到的问题
创建集群的时候会遇到Waiting for the cluster to join....................一直没有成功
答:网络模式改成host,docker run 的方式加上--net host,docker-compose方式加上network_mode: host。
我原本是端口映射 7001:7000+17001:17000,但是不行,不知道什么原因。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持呐喊教程。
声明:本文内容来源于网络,版权归原作者所有,内容由互联网用户自发贡献自行上传,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任。如果您发现有涉嫌版权的内容,欢迎发送邮件至:notice#nhooo.com(发邮件时,请将#更换为@)进行举报,并提供相关证据,一经查实,本站将立刻删除涉嫌侵权内容。