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k8s启用ingress错误案例

ingress-nginx访问流程：

 

 

 

问题：

部署2个nginx-deployment内容v1&&v2，结合ingress作为入口分别访问。访问ingress-入口失败

 

排错步骤：

1、首先确认2个nginx访问无问题

2、确认宿主机访问不问题

3、访问ingress一直无法连接服务器

到这一步 找不到服务器地址 cm到后端服务器之间有问题，开始排查

直接看nginx日志和cm日志

 发现找不到svc（v1和v2），查看后端是否存在对于的svc，其实是我svc绑定的pod名称不对

[root@k8smaster01 ingress]# kubectl get svc -n default nginx-v1 nginx-v2
Error from server (NotFound): services "nginx-v1" not found
Error from server (NotFound): services "nginx-v2" not found

 

解决问题：

重新基于后端的pod创建svc

 1 [root@k8smaster01 ingress]# kubectl expose deployment nginx-v1 --port=80 --target-port=80 --type=NodePort
 2 service/nginx-v1 exposed 4 [root@k8smaster01 ingress]# kubectl expose deployment nginx-v2 --port=80 --target-port=80 --type=NodePort
 5 service/nginx-v2 exposed
 6 [root@k8smaster01 ingress]# kubectl get svc
 7 NAME                        TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
 8 kubernetes                  ClusterIP   10.200.0.1       <none>        443/TCP        2d
 9 nginx-v1                    NodePort    10.200.175.219   <none>        80:32031/TCP   9s
10 nginx-v1-7d48f885fb-qbb2z   NodePort    10.200.8.120     <none>        80:31916/TCP   38m
11 nginx-v2                    NodePort    10.200.244.118   <none>        80:31901/TCP   5s
12 nginx-v2-5f45d8768c-8j88l   NodePort    10.200.29.212    <none>        80:30911/TCP   38m

查看cm日志：

I0126 12:10:40.057208       7 controller.go:205] "Backend successfully reloaded"
I0126 12:10:40.057922       7 event.go:285] Event(v1.ObjectReference{Kind:"Pod", Namespace:"ingress-nginx", Name:"ingress-nginx-controller-647f6bdb4c-8jg4b", UID:"8edd09db-2a05-43f3-a678-60f7af8ffa47", APIVersion:"v1", ResourceVersion:"320981", FieldPath:""}): type: 'Normal' reason: 'RELOAD' NGINX reload triggered due to a change in configuration

　　

 

posted @ 2025-01-26 20:44  乔尼娜蓖炀  阅读(115)  评论(0)    收藏  举报
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