Docker-swarm快速搭建redis集群的方法步骤

目录环境配置修改hostname创建目录创建网络编写compose.yml模版文件启动服务验证测试集群集群测试验证

环境配置

1.三台虚拟机，VM16

操作系统IP备注centos7192.168.2.131centos7192.168.2.132centos7192.168.2.133

2.redis配置

hostnameIP端口备注manager192.168.2.131700117001manager192.168.2.131700217002worker01192.168.2.132700317003worker01192.168.2.132700417004worker02192.168.2.133700517005worker02192.168.2.133700617006

修改hostname

192.168.2.131

sudo hostnamectl set-hostname manager

重启后永久生效，或者执行 exec bash 使立即生效

192.168.2.132

sudo hostnamectl set-hostname worker01

重启后永久生效，或者执行 exec bash 使立即生效

192.168.2.133

sudo hostnamectl set-hostname worker02

重启后永久生效，或者执行 exec bash 使立即生效

创建目录

分别在集群的各服务器（131/132/133）上创建目录：

sudo rm -rf /home/data/redis/ && sudo mkdir -p /home/data/redis/{7001,7002,7003,7004,7005,7006}/{data,conf} && chmod 777 -R /home/data/

创建网络

docker network create –driver overlay mynetwork

这里创建网络类型为overlay，网络类型主要使用比较多的是bridge、overlay ，由于这里使用的是swarm集群部署，要让所有服务在同一个网络中，则需要使用overlay 。

[root@worker2 ~]# docker network ls NETWORK ID NAME DRIVER SCOPE 147f2ede7454 bridge bridge local e29b8451a401 docker_gwbridge bridge local 4b767db33495 host host local splhg7ef8xyc ingress overlay swarm b037f0b632fa mynet bridge local 6zxw8ah74hor mynetwork overlay swarm b6f757b6cadd none null local 063d396e139c somenetwork bridge local

编写compose.yml模版文件

version: “3.8” services:   redis7001:     image: redis:alpine     container_name: redis7001     #设置主机名     hostname: redis7001     restart: always     #privileged: true     #挂载目录,相当于 docker run -v 主机目录:容器目录     volumes:       – /home/data/redis/7001/data:/data       – /home/data/redis/7001/conf:/conf     #启动容器执行命令，相当于docker run [镜像:tag]  [命令], 登录redis: redis-cli -h 192.168.0.80 -p 6379 -a Dszn@2020     command: redis-server –appendonly yes –cluster-enabled yes –cluster-config-file /conf/nodes.conf –cluster-announce-ip 192.168.2.131 –cluster-announce-port 7001 –cluster-announce-bus-port 17001     ports:       – “7001:6379”       – “17001:16379”     #指定环境变量，相当于docker run -e 参数, 登录mysql: mysql -h192.168.3.80 -P3306 -uroot -pDs20Pwd@     environment:       – TZ=Asia/Shanghai     networks:       – mynetwork     deploy:       placement:         constraints:           – node.hostname == manager           – node.role == manager   redis7002:     image: redis:alpine     container_name: redis7002     #设置主机名     hostname: redis7002     restart: always     #privileged: true     #挂载目录,相当于 docker run -v 主机目录:容器目录     volumes:       – /home/data/redis/7002/data:/data       – /home/data/redis/7002/conf:/conf     #启动容器执行命令，相当于docker run [镜像:tag]  [命令], 登录redis: redis-cli -h 192.168.0.80 -p 6379 -a Dszn@2020     command: redis-server –appendonly yes –cluster-enabled yes –cluster-config-file /conf/nodes.conf –cluster-announce-ip 192.168.2.131 –cluster-announce-port 7002 –cluster-announce-bus-port 17002     ports:       – “7002:6379”       – “17002:16379”     #指定环境变量，相当于docker run -e 参数, 登录mysql: mysql -h192.168.3.80 -P3306 -uroot -pDs20Pwd@     environment:       – TZ=Asia/Shanghai     networks:       – mynetwork     deploy:       placement:         constraints:           – node.hostname == manager           – node.role == manager   redis7003:     image: redis:alpine     container_name: redis7003     #设置主机名     hostname: redis7003     restart: always     volumes:       – /home/data/redis/7003/data:/data       – /home/data/redis/7003/conf:/conf     command: redis-server –appendonly yes –cluster-enabled yes –cluster-config-file /conf/nodes.conf –cluster-announce-ip 192.168.2.132 –cluster-announce-port 7003 –cluster-announce-bus-port 17003     ports:       – “7003:6379”       – “17003:16379”     environment:       – TZ=Asia/Shanghai     networks:       – mynetwork     deploy:       placement:         constraints:           – node.hostname == worker1   redis7004:     image: redis:alpine     container_name: redis7004     #设置主机名     hostname: redis7004     restart: always     volumes:       – /home/data/redis/7004/data:/data       – /home/data/redis/7004/conf:/conf     command: redis-server –appendonly yes –cluster-enabled yes –cluster-config-file /conf/nodes.conf –cluster-announce-ip 192.168.2.132 –cluster-announce-port 7004 –cluster-announce-bus-port 17004     ports:       – “7004:6379”       – “17004:16379”     environment:       – TZ=Asia/Shanghai     networks:       – mynetwork     deploy:       placement:         constraints:           – node.hostname == worker1   redis7005:     image: redis:alpine     container_name: redis7005     #设置主机名     hostname: redis7005     restart: always     volumes:       – /home/data/redis/7005/data:/data       – /home/data/redis/7005/conf:/conf     command: redis-server –appendonly yes –cluster-enabled yes –cluster-config-file /conf/nodes.conf –cluster-announce-ip 192.168.2.132 –cluster-announce-port 7005 –cluster-announce-bus-port 17005     ports:       – “7005:6379”       – “17005:16379”     environment:       – TZ=Asia/Shanghai     networks:       – mynetwork     deploy:       placement:         constraints:           – node.hostname == worker2   redis7006:     image: redis:alpine     container_name: redis7006     #设置主机名     hostname: redis7006     restart: always     volumes:       – /home/data/redis/7006/data:/data       – /home/data/redis/7006/conf:/conf     command: redis-server –appendonly yes –cluster-enabled yes –cluster-config-file /conf/nodes.conf –cluster-announce-ip 192.168.2.133 –cluster-announce-port 7006 –cluster-announce-bus-port 17006     ports:       – “7006:6379”       – “17006:16379”     environment:       – TZ=Asia/Shanghai     networks:       – mynetwork     deploy:       placement:         constraints:           – node.hostname == worker2 #声明网桥 networks:   #定义服务网桥名称   mynetwork:     #指定网桥驱动，有bridge/overlay,默认是bridge     driver: overlay     #false-统自动创建网桥名,格式为: 目录名_网桥名，默认为false; true-使用外部创建的网桥，需要自己手动创建     external: true #挂载目录，声明服务使用的创建卷名 volumes:   mysqldata:     #false-系统自动创建的卷名,格式为: 目录名_卷名，默认为false; true-使用外部创建的卷面，需要自己手动创建     external: false

配置说明：

这里使用了6个节点，3主3从，分别在manager/worker1/worker2上创建2个副本。

注意：挂载目录，如果不使用宿主机挂载目录，可以使用卷的方式挂载，卷挂载会自动创建，可以不用提前手动创建。

启动服务

sudo docker stack deploy -c redis-stack.yml redis

1.启动服务

[root@manager redis]# sudo docker stack deploy -c redis-stack.yml redis Ignoring unsupported options: restart Ignoring deprecated options: container_name: Setting the container name is not supported. Creating service redis_redis7001 Creating service redis_redis7002 Creating service redis_redis7003 Creating service redis_redis7004 Creating service redis_redis7005 Creating service redis_redis7006

2.查看启动节点

[root@manager redis]# sudo docker stack ls NAME SERVICES ORCHESTRATOR redis 6 Swarm

3.查看启动的堆栈

[root@worker2 redis_cluster]# docker stack ps redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS bdofotp2fx91 redis_redis7001.1 redis:alpine manager Running Running 2 minutes ago 81kmx5o61zn0 redis_redis7002.1 redis:alpine manager Running Running about a minute ago wku68rakslzj redis_redis7003.1 redis:alpine worker1 Running Running 49 seconds ago oo7obcm33guk redis_redis7004.1 redis:alpine worker1 Running Running about a minute ago xrt14qitd7ar redis_redis7005.1 redis:alpine worker2 Running Running about a minute ago jc1xxv66fskg redis_redis7006.1 redis:alpine worker2 Running Running 2 minutes ago [root@worker2 redis_cluster]#

验证测试

本地连接成功

集群

进入manager（192.168.2.131）服务设置集群

1.登录manager节点，执行如下命令集群：

[root@manager ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 71092cdaaf55 redis:alpine “docker-entrypoint.s…” 2 minutes ago Up About a minute 6379/tcp redis_redis7001.1.j84ta2mmwttpl2lp6eoyksz71 695c0fc4545b redis:alpine “docker-entrypoint.s…” 2 minutes ago Up About a minute 6379/tcp redis_redis7002.1.8jt2yodv9ju8k4saumd7n5rif [root@manager ~]# docker exec -it 710 /bin/sh /data # redis-cli -h 192.168.2.131 -p 7001 –cluster create 192.168.2.131:7001 192.168.2.131:7002 192.168.2.132:7003 192.168.2.132:7004 192.168.2.133:7005 192.168.2 .133:7006 –cluster-replicas 1 –cluster-yes

2.查看集群

可以看到集群后，redis有3主3从，分别在manager、worker1、worker2节点上创建了2个服务。

[root@manager ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 71092cdaaf55 redis:alpine “docker-entrypoint.s…” 28 minutes ago Up 28 minutes 6379/tcp redis_redis7001.1.j84ta2mmwttpl2lp6eoyksz71 695c0fc4545b redis:alpine “docker-entrypoint.s…” 28 minutes ago Up 28 minutes 6379/tcp redis_redis7002.1.8jt2yodv9ju8k4saumd7n5rif [root@manager ~]# docker exec -it 710 /bin/sh /data # redis-cli -c 127.0.0.1:6379> cluster nodes 01011fe3d1e19db0bfab5d736f7fcb85f84e5a2b 192.168.2.131:7002@17002 slave 9fece13f2f1ff237b0e450cb5485c27cd4cc1522 0 1648894677000 5 connected 9a68f8ad7688f3c7f3a5474d64ffc5adc7448288 192.168.2.132:7004@17004 slave c1a9795720eb270d6bc77632236d30bfb1fe9728 0 1648894678000 1 connected c1a9795720eb270d6bc77632236d30bfb1fe9728 192.168.2.131:7001@17001 myself,master – 0 1648894677000 1 connected 0-5460 9fece13f2f1ff237b0e450cb5485c27cd4cc1522 192.168.2.132:7005@17005 master – 0 1648894679923 5 connected 10923-16383 4b6cafd544d4353249eb7f7d58bed7bf0b1caeb1 192.168.2.132:7003@17003 slave 65c23a5ae11b985b270a5e34d7526648a3c826b8 0 1648894679000 7 connected 65c23a5ae11b985b270a5e34d7526648a3c826b8 192.168.2.133:7006@17006 master – 0 1648894678000 7 connected 5461-10922 127.0.0.1:6379>

集群测试验证

1.Manager节点192.168.2.131:7001@17001 myself,master 登录redis:

redis-cli -c set username ‘zxq’ get username

[root@manager ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 71092cdaaf55 redis:alpine “docker-entrypoint.s…” 4 minutes ago Up 4 minutes 6379/tcp redis_redis7001.1.j84ta2mmwttpl2lp6eoyksz71 695c0fc4545b redis:alpine “docker-entrypoint.s…” 4 minutes ago Up 4 minutes 6379/tcp redis_redis7002.1.8jt2yodv9ju8k4saumd7n5rif [root@manager ~]# docker exec -it 710 /bin/sh /data # redis-cli -c 127.0.0.1:6379> set username “zxq” -> Redirected to slot [14315] located at 192.168.2.132:7005 OK

2.Worker1节点192.168.2.132:7003@17003 master 登录redis:

[root@worker1 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 73da00eeb366 redis:alpine “docker-entrypoint.s…” 24 minutes ago Up 23 minutes 6379/tcp redis_redis7004.1.mofccxkrtzb0erc36fwaj9l3b 8e4fed3c8855 redis:alpine “docker-entrypoint.s…” 24 minutes ago Up 23 minutes 6379/tcp redis_redis7003.1.5qmpefwnglv6jvd62206owq3h [root@worker1 ~]# docker exec -it 73d /bin/sh /data # redis-cli -c 127.0.0.1:6379> get username -> Redirected to slot [14315] located at 192.168.2.132:7005 “zxq” 192.168.2.132:7005> set nodes5 “7005” OK

3.Worker1节点192.168.2.132:7004@17004 slave登录redis:

[root@worker1 ~]# docker exec -it 8e4 /bin/sh /data # redis-cli -c 127.0.0.1:6379> get nodes5 -> Redirected to slot [15322] located at 192.168.2.132:7005 “7005” 192.168.2.132:7005>

4.Worker2节点192.168.2.133:7006@17006 slave 登录redis:

[root@worker2 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7505c9fde687 redis:alpine “docker-entrypoint.s…” 47 minutes ago Up 47 minutes 6379/tcp redis_redis7006.1.o6yly8n6h352g034jhx7nbvaf 2da9dc998c69 redis:alpine “docker-entrypoint.s…” 47 minutes ago Up 47 minutes 6379/tcp redis_redis7005.1.s6lfflko40afutyz9a5b77tib [root@worker2 ~]# docker exec -it 750 /bin/sh /data # redis-cli -c 127.0.0.1:6379> get username -> Redirected to slot [14315] located at 192.168.2.132:7005 “zxq” 192.168.2.132:7005> get name -> Redirected to slot [5798] located at 192.168.2.133:7006 “zxq” 192.168.2.133:7006> get nodes5 -> Redirected to slot [15322] located at 192.168.2.132:7005 “7005” 192.168.2.132:7005>

redis集群完成

参考原文章地址：

docker swarm redis集群_starsky20的博客-CSDN博客_docker swarm搭建redis集群