sample/ingress.yaml在k8s v1.22.4版本中配置失效

[FlowerBirds]

示例中yaml：

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: example-ingress
  annotations:
    ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - http:
      paths:
        - path: /apple
          pathType: Exact
          backend:
            service:
              name: apple-service
              port:
                number: 5678
        - path: /banana
          pathType: Exact
          backend:
            service:
              name: banana-service
              port: 
                number: 5678

实际访问中全部为404，无法访问http://localhost/apple地址。 查看NGINX Ingress（https://kubernetes.github.io/ingress-nginx/user-guide/basic-usage/） 文档如下：

If cluster version >= 1.19 the Ingress resource above will not work, instead of annotations you should use the new ingressClassName: nginx property.

修改yaml，添加ingressClassName: nginx属性，如下：

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: example-ingress
  annotations:
    ingress.kubernetes.io/rewrite-target: /
spec:
  ingressClassName: nginx
  rules:
  - http:
      paths:
        - path: /apple
          pathType: Exact
          backend:
            service:
              name: apple-service
              port:
                number: 5678
        - path: /banana
          pathType: Exact
          backend:
            service:
              name: banana-service
              port: 
                number: 5678

访问成功