Docker Swarm集羣中部署Traefik負載均衡器

  

1、建立單節點的Docker Swarm集羣

docker swarm init

 

2、在Swarm集羣中建立一個網絡

docker network create --driver=overlay traefik --attachable

 

3、在Swarm集羣中部署traefik負載均衡器服務

docker service create \

--name traefik \

--constraint=node.role==manager \

--publish 80:80 --publish 8080:8080 \

--mount type=bind,source=/var/run/docker.sock,target=/var/run/docker.sock \

--network traefik \

traefik \

--docker \

--docker.swarmmode \

--docker.domain=traefik \

--docker.watch \

--web

 

4、在Swarm集羣中分別部署2個容器服務（httpd和nginx）

#2.1 httpd.abc.com

docker service create \

--name httpd \

--network traefik \

--label "traefik.backend=httpd" \

--label "traefik.enable=true" \

--label "traefik.protocol=http" \

--label "traefik.port=80" \

--label "traefik.frontend.rule=Host:httpd.abc.com" \

httpd

 

#2.2 nginx.abc.com

docker service create \

--name nginx \

--network traefik \

--label "traefik.backend=nginx" \

--label "traefik.enable=true" \

--label "traefik.protocol=http" \

--label "traefik.port=80" \

--label "traefik.frontend.rule=Host:nginx.abc.com" \

nginx

 

 

5、在瀏覽器中經過域名訪問2個網站、查看Traefik UI

#修改Win7客戶端電腦的hosts文件C:\Windows\System32\drivers\etc\hosts

#增長2條主機記錄：

httpd.abc.com 192.168.3.168

nginx.abc.com 192.168.3.168

 

http://192.168.3.168:8080

http://httpd.abc.com

http://nginx.abc.com

 

 

6、Swarm集羣中服務擴容後，再查看Traefik UI

docker service scale httpd=2

docker service scale nginx=3

 

http://192.168.3.168:8080

 

附圖:

 

參考連接：

docker swarm模式使用traefik部署服務

https://blog.51cto.com/6764097/2066670

 

Docker Swarm (mode) cluster

http://docs.traefik.cn/user-guide/swarm-mode