默认后端 - 使用 dns 时从 nginx-controller 返回 404

Question

一些背景知识是我已经设置了一个 Azure Kubernetes 服务集群并部署了一个基本的 .Net Core api 作为部署对象。然后我部署了一个 nodeport 服务来公开 api，然后部署了一个 nginx-controller 和一个入口对象来配置它。我使用入口控制器的 IP 来路由请求并且有效，例如 http://1.2.3.4/hello-world-one/api/values。但是当我用生成的 dns 替换 Ip 时，不知何故路径被忽略，我得到默认后端 - 从 nginx 控制器返回 404。预期的行为是 dns 将解析然后路径 "api/values" 将发送到我的服务。

谁能帮我解决这个问题？提前致谢。

我的部署、服务和入口配置如下。

    apiVersion: apps/v1beta1
    kind: Deployment
    metadata:
      name: test-deployment
      labels:
        app: test
    spec:
      replicas: 1
      selector:
         matchLabels: 
           app: test
      strategy:
        type: RollingUpdate
        rollingUpdate:
           maxUnavailable: 1
           maxSurge: 1 
      template:
        metadata:
          labels: 
            app: test
        spec:
          containers:
          - name: test-service
            image: <my-repo>.azurecr.io/testservice
            imagePullPolicy: Always
            ports:
            - name: tcp
              containerPort: 80
          imagePullSecrets:
          - name: regsecret
    ---
    apiVersion: v1
    kind: Service
    metadata:
      name: frontend
    spec:
      type: NodePort
      selector:
        app: test
      ports:
      - name: http
        port: 32768
        targetPort: 80
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: hello-world-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/rewrite-target: /
    kubernetes.io/ingress.global-static-ip-name: dev-pip-usw-qa-aks
    kubernetes.io/ingress.class: addon-http-application-routing
spec:
  rules:
  - host: hello-world-ingress.be543d4af69d4c7ca489.westus.aksapp.io
  - http:
      paths:
      - path: /
        backend:
          serviceName: frontend
          servicePort: http
      - path: /hello-world-one
        backend:
          serviceName: frontend
          servicePort: http
      - path: /hello-world-two
        backend:
          serviceName: frontend
          servicePort: http

Answer 1

很确定 rules 应该是这样的：

rules:
- host: hello-world-ingress.be543d4af69d4c7ca489.westus.aksapp.io
  http:
    paths:
    - path: /
      backend:
        serviceName: frontend
        servicePort: http
    - path: /hello-world-one
      backend:
        serviceName: frontend
        servicePort: http
    - path: /hello-world-two
      backend:
        serviceName: frontend
        servicePort: http

阅读：https://kubernetes.io/docs/concepts/services-networking/ingress/#types-of-ingress

默认后端 - 使用 dns 时从 nginx-controller 返回 404

default backend - 404 returned from nginx-controller when dns is used

kubernetes

azure-aks

nginx-ingress