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目錄

• 環境配置
• 修改hostname
• 創建目錄
• 創建網絡
• 編寫compose.yml模版文件
• 啟動服務
• 驗證測試
• 集群
• 集群測試驗證

環境配置

1.三臺虛擬機，VM16

2.redis配置

修改hostname

192.168.2.131

sudo hostnamectl set-hostname manager

重啟后永久生效，或者執行 exec bash 使立即生效

192.168.2.132

sudo hostnamectl set-hostname worker01

重啟后永久生效，或者執行 exec bash 使立即生效

192.168.2.133

sudo hostnamectl set-hostname worker02

重啟后永久生效，或者執行 exec bash 使立即生效

創建目錄

分別在集群的各服務器（131/132/133）上創建目錄：

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/

創建網絡

docker network create --driver overlay mynetwork

這里創建網絡類型為overlay，網絡類型主要使用比較多的是bridge、overlay ，由于這里使用的是swarm集群部署，要讓所有服務在同一個網絡中，則需要使用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

編寫compose.yml模版文件

version: "3.8"
services:
? redis7001:
? ? image: redis:alpine
? ? container_name: redis7001
? ? #設置主機名
? ? hostname: redis7001
? ? restart: always
? ? #privileged: true
? ? #掛載目錄,相當于 docker run -v 主機目錄:容器目錄
? ? volumes:
? ? ? - /home/data/redis/7001/data:/data
? ? ? - /home/data/redis/7001/conf:/conf
? ? #啟動容器執行命令，相當于docker run [鏡像:tag] ?[命令], 登錄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"
? ? #指定環境變量，相當于docker run -e 參數, 登錄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
? ? #設置主機名
? ? hostname: redis7002
? ? restart: always
? ? #privileged: true
? ? #掛載目錄,相當于 docker run -v 主機目錄:容器目錄
? ? volumes:
? ? ? - /home/data/redis/7002/data:/data
? ? ? - /home/data/redis/7002/conf:/conf
? ? #啟動容器執行命令，相當于docker run [鏡像:tag] ?[命令], 登錄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"
? ? #指定環境變量，相當于docker run -e 參數, 登錄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
? ? #設置主機名
? ? 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
? ? #設置主機名
? ? 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
? ? #設置主機名
? ? 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
? ? #設置主機名
? ? 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

#聲明網橋
networks:
? #定義服務網橋名稱
? mynetwork:
? ? #指定網橋驅動，有bridge/overlay,默認是bridge
? ? driver: overlay
? ? #false-統自動創建網橋名,格式為: 目錄名_網橋名，默認為false; true-使用外部創建的網橋，需要自己手動創建
? ? external: true

#掛載目錄，聲明服務使用的創建卷名
volumes:
? mysqldata:
? ? #false-系統自動創建的卷名,格式為: 目錄名_卷名，默認為false; true-使用外部創建的卷面，需要自己手動創建
? ? external: false

配置說明：

這里使用了6個節點，3主3從，分別在manager/worker1/worker2上創建2個副本。
注意：掛載目錄，如果不使用宿主機掛載目錄，可以使用卷的方式掛載，卷掛載會自動創建，可以不用提前手動創建。

啟動服務

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

1.啟動服務

[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.查看啟動節點

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

3.查看啟動的堆棧

[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]# 

驗證測試

本地連接成功

集群

進入manager（192.168.2.131）服務設置集群

1.登錄manager節點，執行如下命令集群：

[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從，分別在manager、worker1、worker2節點上創建了2個服務。

[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> 

集群測試驗證

1.Manager節點192.168.2.131:7001@17001 myself,master 登錄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節點192.168.2.132:7003@17003 master 登錄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節點192.168.2.132:7004@17004 slave登錄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節點192.168.2.133:7006@17006 slave 登錄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

參考原文章地址：

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