您好，我是 Kubernetes 和 helm 的新手，最近尝试了 Pluralsight 的一个教程。
根据教程，我的入口文件如下所示 -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: {{ .Release.Name }}-{{ .Chart.Name }}-ingress
spec:
rules:
{{- range .Values.ingress.hosts }}
- host: {{ $.Release.Name }}.{{ .host.domain }}
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: {{ $.Release.Name}}-{{ .host.chart }}
port:
number: 80
{{- end }}
当我尝试连接到 minikube ip 时，它给了我这个错误 -
404 Not Found
----
nginx
我已经使用 helm install dev guestbook 安装了 Helm Chart 这些是我的 pod 和入口日志 - 命令 -
kubectl get ingressNAME CLASS HOSTS ADDRESS PORTS AGE
dev-guestbook-ingress <none> dev.frontend.minikube.local,dev.backend.minikube.local 192.168.99.104 80 136m
命令 -
kubectl describe ingress dev-guestbook-ingressName: dev-guestbook-ingress
Namespace: default
Address: 192.168.99.104
Default backend: default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
Host Path Backends
---- ---- --------
dev.frontend.minikube.local
/* dev-frontend:80 (172.17.0.3:4200)
dev.backend.minikube.local
/* dev-backend:80 (172.17.0.5:3000)
Annotations: meta.helm.sh/release-name: dev
meta.helm.sh/release-namespace: default
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Sync 32m (x2 over 33m) nginx-ingress-controller Scheduled for sync
这些是使用命令后我的 ingress pod 的日志 -
kubectl logs ingress-nginx-controller-69bdbc4d57-jnswj --namespace=ingress-nginx
-------------------------------------------------------------------------------
NGINX Ingress controller
Release: v1.0.0-beta.1
Build: a091b01f436b4ab4f3d04264df93962432a02450
Repository: https://github.com/kubernetes/ingress-nginx
nginx version: nginx/1.20.1
-------------------------------------------------------------------------------
W0928 13:00:25.824832 8 client_config.go:615] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work.
I0928 13:00:25.825340 8 main.go:221] "Creating API client" host="https://10.96.0.1:443"
W0928 13:00:56.974273 8 main.go:262] Initial connection to the Kubernetes API server was retried 1 times.
I0928 13:00:56.974428 8 main.go:265] "Running in Kubernetes cluster" major="1" minor="22" git="v1.22.2" state="clean" commit="8b5a19147530eaac9476b0ab82980b4088bbc1b2" platform="linux/amd64"
I0928 13:00:57.378459 8 main.go:104] "SSL fake certificate created" file="/etc/ingress-controller/ssl/default-fake-certificate.pem"
I0928 13:00:57.401933 8 ssl.go:531] "loading tls certificate" path="/usr/local/certificates/cert" key="/usr/local/certificates/key"
I0928 13:00:57.426834 8 nginx.go:253] "Starting NGINX Ingress controller"
I0928 13:00:57.451326 8 event.go:282] Event(v1.ObjectReference{Kind:"ConfigMap", Namespace:"ingress-nginx", Name:"udp-services", UID:"3fd79ae9-35c2-4147-aa8c-b8bdb94a46e7", APIVersion:"v1", ResourceVersion:"787", FieldPath:""}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/udp-services
I0928 13:00:57.451353 8 event.go:282] Event(v1.ObjectReference{Kind:"ConfigMap", Namespace:"ingress-nginx", Name:"ingress-nginx-controller", UID:"dc2450e0-6542-4b42-81e3-0b68598bdb8d", APIVersion:"v1", ResourceVersion:"785", FieldPath:""}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/ingress-nginx-controller
I0928 13:00:57.453791 8 event.go:282] Event(v1.ObjectReference{Kind:"ConfigMap", Namespace:"ingress-nginx", Name:"tcp-services", UID:"c22ae05e-ac70-47da-9573-087394876f41", APIVersion:"v1", ResourceVersion:"786", FieldPath:""}): type: 'Normal' reason: 'CREATE' ConfigMap ingress-nginx/tcp-services
I0928 13:00:58.543719 8 store.go:361] "Ignoring ingress because of error while validating ingress class" ingress="default/dev-guestbook-ingress" error="ingress does not contain a valid IngressClass"
I0928 13:00:58.640831 8 nginx.go:295] "Starting NGINX process"
I0928 13:00:58.640960 8 leaderelection.go:243] attempting to acquire leader lease ingress-nginx/ingress-controller-leader...
I0928 13:00:58.641293 8 nginx.go:315] "Starting validation webhook" address=":8443" certPath="/usr/local/certificates/cert" keyPath="/usr/local/certificates/key"
I0928 13:00:58.641425 8 controller.go:150] "Configuration changes detected, backend reload required"
I0928 13:00:58.657350 8 leaderelection.go:253] successfully acquired lease ingress-nginx/ingress-controller-leader
I0928 13:00:58.657383 8 status.go:84] "New leader elected" identity="ingress-nginx-controller-69bdbc4d57-jnswj"
I0928 13:00:58.668104 8 status.go:204] "POD is not ready" pod="ingress-nginx/ingress-nginx-controller-69bdbc4d57-jnswj" node="minikube"
I0928 13:00:59.289049 8 controller.go:167] "Backend successfully reloaded"
I0928 13:00:59.289288 8 controller.go:178] "Initial sync, sleeping for 1 second"
I0928 13:00:59.289389 8 event.go:282] Event(v1.ObjectReference{Kind:"Pod", Namespace:"ingress-nginx", Name:"ingress-nginx-controller-69bdbc4d57-jnswj", UID:"84ad1680-72e1-4733-a1e7-9c314527d810", APIVersion:"v1", ResourceVersion:"2634", FieldPath:""}): type: 'Normal' reason: 'RELOAD' NGINX reload triggered due to a change in configuration
I0928 13:06:22.563182 8 main.go:101] "successfully validated configuration, accepting" ingress="dev-guestbook-ingress/default"
I0928 13:06:22.568356 8 store.go:396] "creating ingress" ingress="default/dev-guestbook-ingress" ingressclass="nginx"
I0928 13:06:22.568860 8 controller.go:150] "Configuration changes detected, backend reload required"
I0928 13:06:22.569014 8 event.go:282] Event(v1.ObjectReference{Kind:"Ingress", Namespace:"default", Name:"dev-guestbook-ingress", UID:"519a99af-aec5-4316-ae38-d1bcc1127c59", APIVersion:"networking.k8s.io/v1", ResourceVersion:"3001", FieldPath:""}): type: 'Normal' reason: 'Sync' Scheduled for sync
I0928 13:06:22.639189 8 controller.go:167] "Backend successfully reloaded"
I0928 13:06:22.639649 8 event.go:282] Event(v1.ObjectReference{Kind:"Pod", Namespace:"ingress-nginx", Name:"ingress-nginx-controller-69bdbc4d57-jnswj", UID:"84ad1680-72e1-4733-a1e7-9c314527d810", APIVersion:"v1", ResourceVersion:"2634", FieldPath:""}): type: 'Normal' reason: 'RELOAD' NGINX reload triggered due to a change in configuration
I0928 13:06:58.702705 8 status.go:284] "updating Ingress status" namespace="default" ingress="dev-guestbook-ingress" currentValue=[] newValue=[{IP:192.168.99.104 Hostname: Ports:[]}]
I0928 13:06:58.708447 8 event.go:282] Event(v1.ObjectReference{Kind:"Ingress", Namespace:"default", Name:"dev-guestbook-ingress", UID:"519a99af-aec5-4316-ae38-d1bcc1127c59", APIVersion:"networking.k8s.io/v1", ResourceVersion:"3034", FieldPath:""}): type: 'Normal' reason: 'Sync' Scheduled for sync
192.168.99.1 - - [28/Sep/2021:13:07:19 +0000] "GET / HTTP/1.1" 404 548 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36" 444 0.001 [upstream-default-backend] [] 127.0.0.1:8181 548 0.000 404 0fa63d31eee2d30a43ec3e4a810692e2
192.168.99.1 - - [28/Sep/2021:13:07:19 +0000] "GET /favicon.ico HTTP/1.1" 404 548 "http://dev.backend.minikube.local/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36" 399 0.000 [upstream-default-backend] [] 127.0.0.1:8181 548 0.000 404 7578f34eb36a0624571b59ace7874748
192.168.99.1 - - [28/Sep/2021:13:27:37 +0000] "HEAD / HTTP/1.1" 404 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36 Edg/94.0.992.31" 287 0.001 [upstream-default-backend] [] 127.0.0.1:8181 0 0.001 404 de62ff190e82ba05a6614dd727f1170a
192.168.99.1 - - [28/Sep/2021:13:27:40 +0000] "GET / HTTP/1.1" 404 548 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36 Edg/94.0.992.31" 458 0.001 [upstream-default-backend] [] 127.0.0.1:8181 548 0.001 404 a4ebeb4dfadea97778a6394e218e99b0
192.168.99.1 - - [28/Sep/2021:13:27:40 +0000] "GET /favicon.ico HTTP/1.1" 404 548 "http://dev.frontend.minikube.local/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36 Edg/94.0.992.31" 414 0.001 [upstream-default-backend] [] 127.0.0.1:8181 548 0.000 404 e39c1bbc38591ec1e33ba0ca074e8127
I0928 13:32:41.441620 8 main.go:101] "successfully validated configuration, accepting" ingress="dev-guestbook-ingress/default"
I0928 13:32:41.445673 8 store.go:399] "removing ingress because of unknown ingressclass" ingress="default/dev-guestbook-ingress"
I0928 13:32:41.445785 8 controller.go:150] "Configuration changes detected, backend reload required"
I0928 13:32:41.565590 8 controller.go:167] "Backend successfully reloaded"
I0928 13:32:41.566233 8 event.go:282] Event(v1.ObjectReference{Kind:"Pod", Namespace:"ingress-nginx", Name:"ingress-nginx-controller-69bdbc4d57-jnswj", UID:"84ad1680-72e1-4733-a1e7-9c314527d810", APIVersion:"v1", ResourceVersion:"2634", FieldPath:""}): type: 'Normal' reason: 'RELOAD' NGINX reload triggered due to a change in configuration
我的 kubernetes 版本是 -
Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.4", GitCommit:"3cce4a82b44f032d0cd1a1790e6d2f5a55d20aae", GitTreeState:"clean", BuildDate:"2021-08-11T18:16:05Z", GoVersion:"go1.16.7", Compiler:"gc", Platform:"windows/amd64"}
Server Version: version.Info{Major:"1", Minor:"22", GitVersion:"v1.22.2", GitCommit:"8b5a19147530eaac9476b0ab82980b4088bbc1b2", GitTreeState:"clean", BuildDate:"2021-09-15T21:32:41Z", GoVersion:"go1.16.8", Compiler:"gc", Platform:"linux/amd64"}
我的 minikube 版本是 -
minikube version: v1.23.0
commit: 5931455374810b1bbeb222a9713ae2c756daee10
我确实在etc/hosts中添加了带有主机的minikube ip，所以这个问题不存在
尝试添加以下内容来修复默认后端错误，看看是否可以解决问题。另外，值得检查一下您的 Ingress IP 和 minikube IP 是否相同。
spec:
defaultBackend:
service:
name: {{ $.Release.Name}}-{{ .host.chart }}
port:
number: 80