Docker Swarm集群中部署Traefik负载均衡器

  

1、建立单节点的Docker Swarm集群

docker swarm init

 

2、在Swarm集群中建立一个网络

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

 

3、在Swarm集群中部署traefik负载均衡器服务

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集群中分别部署2个容器服务（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、在浏览器中经过域名访问2个网站、查看Traefik UI

#修改Win7客户端电脑的hosts文件C:\Windows\System32\drivers\etc\hosts

#增长2条主机记录：

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集群中服务扩容后，再查看Traefik UI

docker service scale httpd=2

docker service scale nginx=3

 

http://192.168.3.168:8080

 

附图:

 

参考连接：

docker swarm模式使用traefik部署服务

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

 

Docker Swarm (mode) cluster

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