学习环境
所使用的pod信息
kubectl get pod -n test -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-deployment-5c767764f5-5ffpm 1/1 Running 1 (17h ago) 17h 10.244.169.167 k8s-node2 <none> <none>
nginx-deployment-5c767764f5-6gs8s 1/1 Running 1 (17h ago) 17h 10.244.169.166 k8s-node2 <none> <none>
nginx-deployment-5c767764f5-vcnmv 1/1 Running 1 (17h ago) 17h 10.244.36.98 k8s-node1 <none> <none>
tomcat-deployment-7db86c59b7-kmbls 1/1 Running 1 (17h ago) 17h 10.244.36.97 k8s-node1 <none> <none>
tomcat-deployment-7db86c59b7-krh95 1/1 Running 1 (17h ago) 17h 10.244.169.165 k8s-node2 <none> <none>
tomcat-deployment-7db86c59b7-zbp5g 1/1 Running 1 (17h ago) 17h 10.244.36.96 k8s-node1 <none> <none>
#ingress pod 信息
kubectl get pod -n ingress-nginx
NAME READY STATUS RESTARTS AGE
ingress-nginx-admission-create--1-cxqkl 0/1 Completed 0 7m9s
ingress-nginx-admission-patch--1-t6whc 0/1 Completed 0 7m9s
ingress-nginx-controller-6b64bc6f47-qqgf2 1/1 Running 0 7m9s
#ingress service创建信息
kubectl get svc -n ingress-nginx
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx-controller NodePort 10.1.71.159 <none> 80:32704/TCP,443:32764/TCP 5m28s
ingress-nginx-controller-admission ClusterIP 10.1.56.158 <none> 443/TCP 5m28s
规则创建信息
kubectl get ing -n test
NAME CLASS HOSTS ADDRESS PORTS AGE
ingress-http ingress-example nginx.test.com,tomcat.test.com 80 17h
#详细信息 ingress
kubectl describe ing -n test
Name: ingress-http
Namespace: test
Address:
Default backend: default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
Host Path Backends
---- ---- --------
nginx.test.com
/ nginx-service:80 (10.244.169.166:80,10.244.169.167:80,10.244.36.98:80)
tomcat.test.com
/ tomcat-service:8080 (10.244.169.165:8080,10.244.36.96:8080,10.244.36.97:8080)
Annotations: <none>
Events: <none>
hosts 文件信息
192.168.100.60 nginx.test.com
192.168.100.60 tomcat.test.com
访问失败
curl nginx.test.com:32704
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx</center>
</body>
</html>
我想要达到的结果 ，是以域名的方式访问到如下结果。
这边是直接访问的调度pod
curl 10.244.169.167
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
看下你的ingress转发配置，
要确认转发规则有没有配置正确。
这个报错的意思呢，就是需要给ingress控制器配置一个default-http-backend的svc。
如果ingress对象中的主机或路径都不匹配http请求，就会把流量分给这个default-http-backend并返回一个404。
参考下面这篇文章
https://blog.csdn.net/fangfu123/article/details/121638163