Kubernetes 后端服务的子路径入口控制器出现问题

我在为后端服务设置路径入口控制器时遇到问题。例如，我想要设置：

具有角度的前端应用程序（路径：/）

带有NodeJs的后端服务（路径：/webservice）

NodeJS:Index.js

const express = require('express')
const app = express()
const port = 4000

app.get('/', (req, res) => res.send('Welcome to myApp!'))

app.use('/data/office', require('./roffice'));
app.listen(port, () => console.log(`Example app listening on port ${port}!`))

var express = require('express')
var router = express.Router()

router.get('/getOffice', async function (req, res) {
   res.send('Get Data Office')
}); 

module.exports = router

另一条路线：roffice.js

const express = require('express')
const app = express()
const port = 4000

app.get('/', (req, res) => res.send('Welcome to myApp!'))

app.use('/data/office', require('./roffice'));
app.listen(port, () => console.log(`Example app listening on port ${port}!`))

var express = require('express')
var router = express.Router()

router.get('/getOffice', async function (req, res) {
   res.send('Get Data Office')
}); 

module.exports = router

部署。yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ws-stack
spec:
  selector:
   matchLabels:
     run: ws-stack
  replicas: 2
  template:
    metadata:
      labels:
      run: ws-stack
  spec:
     containers:
     - name: ws-stack
       image: wsstack/node/img
       imagePullPolicy: IfNotPresent
       ports:
         - containerPort: 4000

apiVersion: v1
kind: Service
metadata:
  name: service-wsstack
   labels:
    run: service-wsstack
  spec:
   type: NodePort
   ports:
   - port: 80
     protocol: TCP
     nodePort: 30009
     targetPort: 4000
   selector:
     run: ws-stack

 apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: stack-ingress
   annotations:
     nginx.ingress.kubernetes.io/rewrite-target: /
     nginx.ingress.kubernetes.io/use-regex: "true"
  spec:
   rules:
    - host: hello-world.info
    - http:
        paths:
        - path: /
          backend:
            serviceName: service-ngstack --> frondend
            servicePort: 80
        - path: /webservice
          backend:
            serviceName: service-wsstack --> backend
            servicePort: 80

服务。yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ws-stack
spec:
  selector:
   matchLabels:
     run: ws-stack
  replicas: 2
  template:
    metadata:
      labels:
      run: ws-stack
  spec:
     containers:
     - name: ws-stack
       image: wsstack/node/img
       imagePullPolicy: IfNotPresent
       ports:
         - containerPort: 4000

apiVersion: v1
kind: Service
metadata:
  name: service-wsstack
   labels:
    run: service-wsstack
  spec:
   type: NodePort
   ports:
   - port: 80
     protocol: TCP
     nodePort: 30009
     targetPort: 4000
   selector:
     run: ws-stack

 apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: stack-ingress
   annotations:
     nginx.ingress.kubernetes.io/rewrite-target: /
     nginx.ingress.kubernetes.io/use-regex: "true"
  spec:
   rules:
    - host: hello-world.info
    - http:
        paths:
        - path: /
          backend:
            serviceName: service-ngstack --> frondend
            servicePort: 80
        - path: /webservice
          backend:
            serviceName: service-wsstack --> backend
            servicePort: 80

ingress.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ws-stack
spec:
  selector:
   matchLabels:
     run: ws-stack
  replicas: 2
  template:
    metadata:
      labels:
      run: ws-stack
  spec:
     containers:
     - name: ws-stack
       image: wsstack/node/img
       imagePullPolicy: IfNotPresent
       ports:
         - containerPort: 4000

apiVersion: v1
kind: Service
metadata:
  name: service-wsstack
   labels:
    run: service-wsstack
  spec:
   type: NodePort
   ports:
   - port: 80
     protocol: TCP
     nodePort: 30009
     targetPort: 4000
   selector:
     run: ws-stack

 apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: stack-ingress
   annotations:
     nginx.ingress.kubernetes.io/rewrite-target: /
     nginx.ingress.kubernetes.io/use-regex: "true"
  spec:
   rules:
    - host: hello-world.info
    - http:
        paths:
        - path: /
          backend:
            serviceName: service-ngstack --> frondend
            servicePort: 80
        - path: /webservice
          backend:
            serviceName: service-wsstack --> backend
            servicePort: 80

我已成功设置部署、服务和入口。但当我打电话给curl时

curl http://<minikubeip>/webservice  --> Welcome to myApp! => Correct
curl http://<minikubeip>/webservice/data/office/getOffice --> Welcome to myApp! => Not correct

curlhttp:///webservice  -->欢迎使用myApp！=>对的
卷曲http:///webservice/data/office/getOffice -->欢迎使用myApp！=>不对

如果我调用另一个路由，结果是相同的“欢迎使用myApp”。但是如果我用Nodeport

curl http://<minikubeip>:30009/data/office/getOffice => 'Get Data Office', working properly.

curl http://:30009/data/office/getOffice=>“获取数据办公室”，工作正常。

有什么问题？有解决办法吗？谢谢

TL；博士

• nginx.ingres.kubernetes.io/rewrite-target://$2

• path:/webservice（$|/）（.*）

解释 问题出在入口的那一行：

nginx.ingres.kubernetes.io/rewrite-target://

您正在告诉nginx将您的url重写为与之匹配的任何内容

• /webservice

  =>

  /

• /webservice/data/office/getOffice

  =>

  /

要使用regex执行您试图执行的操作，这里有一个简单的示例：

 apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: stack-ingress
   annotations:
     nginx.ingress.kubernetes.io/rewrite-target: /$2
     nginx.ingress.kubernetes.io/use-regex: "true"
  spec:
   rules:
    - host: hello-world.info
    - http:
        paths:
        - path: /
          backend:
            serviceName: service-ngstack --> frondend
            servicePort: 80
        - path: /webservice($|/)(.*)
          backend:
            serviceName: service-wsstack --> backend
            servicePort: 80

这样，您就要求nginx使用第二个匹配组重写您的url。 最后它给你：

• /webservice

  =>

  /

• /webservice/data/office/getOffice

  =>

  /data/office/getOffice

---

很抱歉@Noe..前端服务ngstack无法再访问，后端工作正常。。路径前端是否有解决方案？前端应在“/”处工作。以前有用吗？问题是，前端的url将始终为“/”（在此配置中）。因此，我建议您编写自己的正则表达式来匹配url，并创建第二个逻辑组。或者，如果你想要一个快速修复，你可以为pathow做与web服务相同的事情。对不起，这很有效。。我的错..谢谢@Noe。再次提出问题，如果用户写入地址不正确，如何重定向到路径，例如：/foo，/bar。感谢您需要为您的web应用程序客户端创建一个与除/webservice/*之外的所有内容都匹配的正则表达式，并确保您只有一个组，以便URL将被重写/。你可以在网上找到很棒的正则表达式编辑器