service代理模式及负载均衡

service代理模式及负载均衡
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大家好,我是架构君,一个会写代码吟诗的架构师。今天说一说service代理模式及负载均衡,希望能够帮助大家进步!!!

[root@k8s-master ~]# vim service.yaml

apiVersion: v1

kind: Service

metadata:

  name: my-service

spec:

  selector:

    app: MyApp

  ports:

  - name: http

    protocol: TCP

    port: 80

    targetPort: 80

  - name: https

    protocol: TCP

    port: 443

targetPort: 443

 

[root@k8s-master ~]# kubectl get all

NAME                TYPE        CLUSTER-IP    EXTERNAL-IP   PORT(S)   AGE

svc/kubernetes      ClusterIP   10.10.10.1    <none>        443/TCP   5d

svc/nginx-service   ClusterIP   10.10.10.85   <none>        88/TCP    20h

 

[root@k8s-master ~]# kubectl create -f service.yaml

[root@k8s-master ~]# kubectl get svc

NAME            TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE

kubernetes      ClusterIP   10.10.10.1     <none>        443/TCP          5d

my-service      ClusterIP   10.10.10.212   <none>        80/TCP,443/TCP   24s

nginx-service   ClusterIP   10.10.10.85    <none>        88/TCP           20h

 

查看pod的标签,用标签来识别,并代理到后端的服务上

[root@k8s-master ~]# kubectl get pod --show-labels -o wide

nginx-pod                           1/1       Running   1          17h       172.17.80.4   192.168.30.23   app=nginx

 

修改我们创建的my-service,把标签改为nginx,然后我们访问我们的my-service分配的clusterIP就能直接代理到后端的Nginx上了

[root@k8s-master ~]# kubectl edit svc/my-service

 

访问10.10.10.212:80

[root@k8s-node1 ~]# curl 10.10.10.212:80

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

 

[root@k8s-node2 ~]# curl 10.10.10.212:80

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

 

转载于:https://www.cnblogs.com/zc1741845455/p/11158298.html

本文来源weixin_30595035,由架构君转载发布,观点不代表Java架构师必看的立场,转载请标明来源出处:https://javajgs.com/archives/29689

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