在本地 minikube 设置中使用 K8 和 ingress。在networking.k8s.io/v1 api 版本中从yaml 文件创建入口失败。请参阅下面的输出。 正在执行
> kubectl apply -f ingress.yaml
返回
Error from server (InternalError): error when creating "ingress.yaml": Internal error occurred: failed calling webhook "validate.nginx.ingress.kubernetes.io": an error on the server ("") has prevented the request from succeeding
在本地 minikube 环境中，使用 hyperkit 作为 vm 驱动程序。
这是 ingress.yaml 文件：
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: mongodb-express-ingress
namespace: hello-world
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
rules:
- host: mongodb-express.local
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: mongodb-express-service-internal
port:
number: 8081
这里是 mongodb-express 部署文件：
apiVersion: apps/v1
kind: Deployment
metadata:
name: mongodb-express
namespace: hello-world
labels:
app: mongodb-express
spec:
replicas: 1
selector:
matchLabels:
app: mongodb-express
template:
metadata:
labels:
app: mongodb-express
spec:
containers:
- name: mongodb-express
image: mongo-express
ports:
- containerPort: 8081
env:
- name: ME_CONFIG_MONGODB_ADMINUSERNAME
valueFrom:
secretKeyRef:
name: mongodb-secret
key: mongodb-root-username
- name: ME_CONFIG_MONGODB_ADMINPASSWORD
valueFrom:
secretKeyRef:
name: mongodb-secret
key: mongodb-root-password
- name: ME_CONFIG_MONGODB_SERVER
valueFrom:
configMapKeyRef:
name: mongodb-configmap
key: mongodb_url
---
apiVersion: v1
kind: Service
metadata:
name: mongodb-express-service-external
namespace: hello-world
spec:
selector:
app: mongodb-express
type: LoadBalancer
ports:
- protocol: TCP
port: 8081
targetPort: 8081
nodePort: 30000
---
apiVersion: v1
kind: Service
metadata:
name: mongodb-express-service-internal
namespace: hello-world
spec:
selector:
app: mongodb-express
ports:
- protocol: TCP
port: 8081
targetPort: 8081
更多信息：
> kubectl version
Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.7", GitCommit:"1dd5338295409edcfff11505e7bb246f0d325d15", GitTreeState:"clean", BuildDate:"2021-01-13T13:23:52Z", GoVersion:"go1.15.5", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"20", GitVersion:"v1.20.2", GitCommit:"faecb196815e248d3ecfb03c680a4507229c2a56", GitTreeState:"clean", BuildDate:"2021-01-13T13:20:00Z", GoVersion:"go1.15.5", Compiler:"gc", Platform:"linux/amd64"}
> minikube version
minikube version: v1.19.0
commit: 15cede53bdc5fe242228853e737333b09d4336b5
> kubectl get all -n hello-world
NAME READY STATUS RESTARTS AGE
pod/mongodb-68d675ddd7-p4fh7 1/1 Running 0 3h29m
pod/mongodb-express-6586846c4c-5nfg7 1/1 Running 6 3h29m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/mongodb-express-service-external LoadBalancer 10.106.185.132 <pending> 8081:30000/TCP 3h29m
service/mongodb-express-service-internal ClusterIP 10.103.122.120 <none> 8081/TCP 3h3m
service/mongodb-service ClusterIP 10.96.197.136 <none> 27017/TCP 3h29m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/mongodb 1/1 1 1 3h29m
deployment.apps/mongodb-express 1/1 1 1 3h29m
NAME DESIRED CURRENT READY AGE
replicaset.apps/mongodb-68d675ddd7 1 1 1 3h29m
replicaset.apps/mongodb-express-6586846c4c 1 1 1 3h29m
> minikube addons enable ingress
▪ Using image k8s.gcr.io/ingress-nginx/controller:v0.44.0
▪ Using image docker.io/jettech/kube-webhook-certgen:v1.5.1
▪ Using image docker.io/jettech/kube-webhook-certgen:v1.5.1
? Verifying ingress addon...
? The 'ingress' addon is enabled
> kubectl get all -n ingress-nginx
NAME READY STATUS RESTARTS AGE
pod/ingress-nginx-admission-create-2bn8h 0/1 Completed 0 4h4m
pod/ingress-nginx-admission-patch-vsdqn 0/1 Completed 0 4h4m
pod/ingress-nginx-controller-5d88495688-n6f67 1/1 Running 0 4h4m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/ingress-nginx-controller NodePort 10.111.176.223 <none> 80:32740/TCP,443:30636/TCP 4h4m
service/ingress-nginx-controller-admission ClusterIP 10.97.107.77 <none> 443/TCP 4h4m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/ingress-nginx-controller 1/1 1 1 4h4m
NAME DESIRED CURRENT READY AGE
replicaset.apps/ingress-nginx-controller-5d88495688 1 1 1 4h4m
NAME COMPLETIONS DURATION AGE
job.batch/ingress-nginx-admission-create 1/1 7s 4h4m
job.batch/ingress-nginx-admission-patch 1/1 9s 4h4m
但是，它适用于 beta api 版本，即
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: mongodb-express-ingress-deprecated
namespace: hello-world
spec:
rules:
- host: mongodb-express.local
http:
paths:
- path: /
backend:
serviceName: mongodb-express-service-internal
servicePort: 8081
非常感谢任何帮助。
答案 0 :(得分：5)
我遇到了同样的问题。我成功地修复了它：
kubectl delete -A ValidatingWebhookConfiguration ingress-nginx-admission
然后应用 yaml 文件：
kubectl apply -f ingress_file.yaml
答案 1 :(得分：2)
我和你有同样的问题，你可以看到这个问题 https://github.com/kubernetes/minikube/issues/11121。
您可以尝试两种方法：
FileNotFoundError: [Errno 2] No such file or directory:然后您会发现您的 Ingress 缺少端点。然后：
# Run without --addons=ingress
sudo minikube start --vm-driver=none #--addons=ingress
# install external ingress-nginx
sudo helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
sudo helm repo update
sudo helm install ingress-nginx ingress-nginx/ingress-nginx
# expose your services
几分钟后，端点出现。
如果您搜索带有插件 Ingress by Google 的示例，您会发现下面缺少的是 ingress。
sudo minikube addons enable ingress
答案 2 :(得分：1)
参考：Expecting apiVersion - networking.k8s.io/v1 instead of extensions/v1beta1
TL;DR
kubectl Explain 早于很多通用资源解析逻辑，所以它有一个专用的 --api-version 标志。这应该可以满足您的需求。
kubectl explain ingresses --api-version=networking.k8s.io/v1
这应该可以解决您的疑问！