使用 K8s ingress 部署 Web 应用程序时出现 JS 404 错误

Question

我正在尝试官方示例Example: Deploying PHP Guestbook application with MongoDB。

一切都很好，但是当我为它部署ingress时，我可以在chrome网络调试中看到下一个（这里，31083是节点端口）：

Request URL: http://10.192.244.109:31083/gb 200 OK
Request URL: http://10.192.244.109:31083/controllers.js 404 Not Found

ingress.yaml:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: gb-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - http:
      paths:
      - path: /gb
        pathType: Prefix
        backend:
          service:
            name: frontend
            port:
              number: 80

ingress-nginx:（使用here）

apiVersion: v1
kind: Service
metadata:
  annotations:
  labels:
    helm.sh/chart: ingress-nginx-3.27.0
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 0.45.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx-controller
  namespace: ingress-nginx
spec:
  type: NodePort
  ports:
    - name: http
      port: 80
      protocol: TCP
      targetPort: http
    - name: https
      port: 443
      protocol: TCP
      targetPort: https
  selector:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/component: controller

我从chrome获取的K8s留言板索引页源码:


<html ng-app="guestbook">
  <head>
    <meta content="text/html;charset=utf-8" http-equiv="Content-Type">
    <title>Guestbook</title>
    <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.12/angular.min.js"></script>
    <script src="controllers.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-bootstrap/0.13.0/ui-bootstrap-tpls.js"></script>
  </head>
  <body ng-controller="guestbookCtrl">
    <div style="width: 50%; margin-left: 20px">
      <h2>Guestbook</h2>
    <form>
    <fieldset>
    <input ng-model="msg" placeholder="Messages" class="form-control" type="text" name="input"><br>
    <button type="button" class="btn btn-primary" ng-click="controller.onguestbook()">Submit</button>
    </fieldset>
    </form>
    <div>
      <div ng-repeat="msg in messages track by $index">
        {{msg}}
      </div>
    </div>
    </div>
  </body>
</html>

我知道我的 ingress 只是指定了 /gb 前缀，所以 http://10.192.244.109:31083/controllers.js 无法路由到正确的服务，但我怎样才能让它工作？

我想也许可以为 js 重写添加另一条入口规则，但如果我有多个应用程序怎么办？有什么建议吗？

Answer 1

您应该能够使用正确的 rewrite-rule 和 path 模式执行此操作：

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: gb-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - http:
      paths:
      - path: /gb(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: frontend
            port:
              number: 80

这将按以下方式重写您的请求：

/gb -> /
/gb/controller.js -> /controller.js
/gb/foo -> /foo

使用 K8s ingress 部署 Web 应用程序时出现 JS 404 错误

JS 404 error if deploy web application with K8s ingress

kubernetes

kubernetes-ingress

nginx-ingress