未找到 Kubernetes Ingress Nginx 控制器

如何解决未找到 Kubernetes Ingress Nginx 控制器

Ingress Nginx 控制器为 React 应用程序返回 404 Not Found。我将范围缩小到 React 应用程序，因为如果我尝试点击 posts.com/posts，它实际上会返回现有帖子的 JSON 列表，但对于前端应用程序，它会一直显示 GET http://posts.com/ 404（未找到）

我查看了其他一些 stackoverflow 问题，但不幸的是无济于事。

ingress-srv.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
Metadata:
  name: ingress-srv
  annotations:
    kubernetes.io/ingress.class: Nginx
    Nginx.ingress.kubernetes.io/use-regex: "use"
spec:
  rules:
    - host: posts.com
      http:
        paths:
          - path: /posts/create
            pathType: Prefix
            backend:
              service:
                name: posts-clusterip-srv
                port:
                  number: 4000
          - path: /posts
            pathType: Prefix
            backend:
              service:
                name: query-srv
                port:
                  number: 4002
          - path: /posts/?(.*)/comments
            pathType: Prefix
            backend:
              service:
                name: comments-srv
                port:
                  number: 4001
          - path: /?(.*)
            pathType: Prefix
            backend:
              service:
                name: client-srv
                port:
                  number: 3000

client-depl.yaml

apiVersion: apps/v1
kind: Deployment
Metadata:
  name: client-depl
spec: 
  replicas: 1
  selector:
    matchLabels:
      app: client
  template:
    Metadata:
      labels:
        app: client
    spec:
      containers:
        - name: client
          image: brachikaa/client
          imagePullPolicy: Always
---
apiVersion: v1
kind: Service
Metadata:
  name: client-srv
spec:
  selector: 
    app: client
  ports: 
    - name: client
      protocol: TCP
      port: 3000
      targetPort: 3000
          

前端Dockerfile

FROM node:alpine

ENV CI=true

workdir /app
copY package.json ./
RUN npm install
copY ./ ./ 

CMD ["npm","start"]

记录 Pod：

Events:
  Type    Reason     Age   From               Message
  ----    ------     ----  ----               -------
  normal  Scheduled  11m   default-scheduler  Successfully assigned default/client-depl-f7cf996cf-cvh6m to minikube
  normal  Pulling    11m   kubelet            Pulling image "brachikaa/client"
  normal  Pulled     11m   kubelet            Successfully pulled image "brachikaa/client" in 42.832431635s
  normal  Created    11m   kubelet            Created container client
  normal  Started    11m   kubelet            Started container client

如果您需要任何其他日志，我很乐意提供。谢谢。

解决方法

在您的 yaml 中，有一个路径“/?...”用于处理查询参数，但此路径不会接收来自“/”路径的流量，因为没有前缀匹配。所以你必须创建一个带有类型前缀的路径“/”来解决这个问题。然后你可以忽略当前的“/?...”路径，因为它会匹配前缀与“/”路径。

请试试这个：

ingress-srv.yaml
__________________
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ingress-srv
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/use-regex: "use"
spec:
  rules:
    - host: posts.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: client-srv
                port:
                  number: 3000
          - path: /posts/create
            pathType: Prefix
            backend:
              service:
                name: posts-clusterip-srv
                port:
                  number: 4000
          - path: /posts
            pathType: Prefix
            backend:
              service:
                name: query-srv
                port:
                  number: 4002
          - path: /posts/?(.*)/comments
            pathType: Prefix
            backend:
              service:
                name: comments-srv
                port:
                  number: 4001
          - path: /?(.*)
            pathType: Prefix
            backend:
              service:
                name: client-srv
                port:
                  number: 3000

,

所以这个问题真的很愚蠢 - 我实际上设置了 nginx.ingress.kubernetes.io/use-regex: "use" 而不是 nginx.ingress.kubernetes.io/use-regex: "true" ...经过三天的查阅文档，我终于找到了。如果有人遇到类似的问题 - 就是这样。

,

您必须在规范中添加以下规则

          - path: /
            pathType: Prefix
            backend:
              service:
                name: client-srv
                port:
                  number: 3000

这匹配所有路径。

参考 - https://kubernetes.io/docs/concepts/services-networking/ingress/#examples