在 GKE 中保护客户端和应用程序之间的连接后无法访问应用程序

问题描述

我想使用 https 保护网络浏览器和我的网络应用程序之间的连接。我的应用程序包含使用 GKE 部署的 play Web 应用程序。应用程序在没有 https 的情况下运行良好。然后我进行了以下更改，导致应用程序无法访问。

应用类型为 Deployment。

apiVersion: apps/v1
kind: Deployment
Metadata:
  name: webapp
spec:
  replicas: 2
  selector:
    matchLabels:
      app: webapp

它有一个与之关联的 service

apiVersion: v1
kind: Service
Metadata:
  name: webapp-service
spec:
  selector:
    app: webapp
  ports:
    - protocol: TCP
      port: 9000 #this service is reachable at this port
      targetPort: 9000 #this service will forward the request to correspoding nodes of the service at this port
  #type: LoadBalancer
  type: NodePort

然后我按照此处描述的步骤生成了 certificates 和 secrets - https://cloud.google.com/kubernetes-engine/docs/how-to/ingress-multi-ssl

 openssl genrsa -out webapp-ingress.key 2048
openssl req -new -key webapp-ingress.key -out test-ingress-1.csr -subj "/CN=webapp.com"
openssl x509 -req -days 365 -in test-ingress-1.csr -signkey wewbapp-ingress.key -out webapp-ingress.crt
kubectl create secret tls test-ingress-1.csr   --cert webapp-ingress.crt --key webapp-ingress.key

然后我应用以下文件来创建 ingress

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
Metadata:
  name: webapp-https-loadbalancer-ingress
  annotations:
    # If the class annotation is not specified it defaults to "gce".
    #There are two Ingress classes available for GKE Ingress. The gce class deploys an external load balancer and the gce-internal class deploys an internal load balancer. Ingress resources without a class specified default to gce.
    kubernetes.io/ingress.class: "gce"
    # kubernetes.io/ingress.global-static-ip-name: SomeReservedIP
    # networking.gke.io/managed-certificates: SomeSSLCertificate
    kubernetes.io/ingress.allow-http: "false"
spec:
  tls:
  - secretName: test-ingress-1.csr
  rules:
    - host: webapp.com
    - http:
        paths:
          - path: /*
            backend:
              serviceName: webapp-service
              servicePort: 9000

当我运行时，我可以看到有一个 IP 地址（也可以从外部访问）

kubectl describe ingress codingjedi-https-loadbalancer-ingress
Name:             webapp-https-loadbalancer-ingress
Namespace:        default
Address:          3x.yyy.zzz.pq
Default backend:  default-http-backend:80 (10.88.0.5:8080)
TLS:
  test-ingress-1.csr terminates
Rules:
  Host        Path  Backends
  ----        ----  --------
  *
              /*   webapp-service:9000 (10.88.0.9:9000,10.88.1.11:9000)
...                  kubernetes.io/ingress.allow-http: false
                  kubernetes.io/ingress.class: gce
    Events:
      Type    Reason  Age   From                     Message
      ----    ------  ----  ----                     -------
      normal  ADD     13m   loadbalancer-controller  default/webapp-https-loadbalancer-ingress
      normal  CREATE  12m   loadbalancer-controller  ip: 3x.yyy.zzz.pq

但我无法使用 https://3x.yyy.zzz.pq 访问该应用程序。我尚未将域与 IP 关联。我收到警告 Your connection is not private，如果我仍然继续，我会看到错误

更新 - 为了尝试负载均衡器在没有 https 的情况下是否工作，我从 secret 文件中删除了 ingress 信息

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
Metadata:
  name: webapp-https-loadbalancer-ingress
  annotations:

    kubernetes.io/ingress.class: "gce"
    # kubernetes.io/ingress.global-static-ip-name: LerenReservedIP
    # networking.gke.io/managed-certificates: LerenSSLCertificate
    # kubernetes.io/ingress.allow-http: "false"
spec:
        #tls:
        #- secretName: test-ingress-1.csr
  rules:
          #- host: leren.space
    - http:
        paths:
          - path: /*
            backend:
              serviceName: codingjediweb-service
              servicePort: 9000

服务器仍然无法访问，curl 显示 502 bad gateway 错误

curl -v 3x.xxx.xxx.xxx
* Expire in 0 ms for 6 (transfer 0x55d4c5258f90)
*   Trying 3x.xxx.xxx.xxx...
* TCP_NODELAY set
* Expire in 200 ms for 4 (transfer 0x55d4c5258f90)
* Connected to 3x.xxx.xxx.xxx (3x.xxx.xxx.xxx) port 80 (#0)
> GET / HTTP/1.1
> Host: 3x.xxx.xxx.xxx
> User-Agent: curl/7.64.0
> Accept: */*
>
< HTTP/1.1 502 Bad Gateway
< Content-Type: text/html; charset=UTF-8
< Referrer-Policy: no-referrer
< Content-Length: 332
< Date: Tue,22 Dec 2020 22:27:23 GMT
<

<html><head>
<Meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>502 Server Error</title>
</head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Server Error</h1>
<h2>The server encountered a temporary error and Could not complete your request.<p>Please try again in 30 seconds.</h2>
<h2></h2>
</body></html>
* Connection #0 to host 3x.xxx.xxx.xxx left intact

解决方法

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