kubernetes - 等待 http-01 挑战传播 : failed to perform self timed out

Question

我设置了一个 kubernetes 集群，目前有两个节点和 metallb 作为负载均衡器。

目前我想使用 Ingress 并通过 ssl 保护它。为此，我决定将 nginx ingress 与 cert-manager 一起使用，并在教程结束后将其放在他们的网站上。

但现在我收到错误“等待 http-01 挑战传播:无法执行自检 GET 请求‘http://example.....zone/.well-known/acme-challenge/A5lFUj69fDccpXlvlyVw9-ekATEjt_-DKiJUzJSafxs’:获取”http://example.....zone/.well-known/acme-challenge/A5lFUj69fDccpXlvlyVw9-ekATEjt_-DKiJUzJSafxs ": 调用 tcp 94.130.150.125:80: connect: 连接超时 "

我当前的 ClusterIssuer 如下所示:

apiVersion: cert-manager.io/v1alpha2
kind: ClusterIssuer
metadata:
 name: letsencrypt-prod
 namespace: cert-manager
spec:
 acme:
   # The ACME server URL
   server: https://acme-v02.api.letsencrypt.org/directory
   # Email address used for ACME registration
   email: letsencrypt@mymail.de
   # Name of a secret used to store the ACME account private key
   privateKeySecretRef:
     name: letsencrypt-prod
   # Enable the HTTP-01 challenge provider
   solvers:
   - http01:
       ingress:
         class:  nginx

我正在尝试自动提供证书

---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: web-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
    cert-manager.io/acme-challenge-type: http01
spec:
  tls:
  - hosts:
    - example.....zone
    secretName: example-...-zone-tls
  rules:
  - host: example.....zone
    http:
      paths:
      - path: /
        backend:
          serviceName: nginx-service
          servicePort: 80

手动我可以完美地到达任何地址。

Answer 1

这个对我有用。

更改 ingress-nginx 服务中的 LoadBalancer。

添加/更改 externalTrafficPolicy: Cluster。

原因是，带有证书颁发者的 pod 与负载均衡器在不同的节点上结束，因此它无法通过入口与自己对话。

下面是取自 https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.26.1/deploy/static/provider/cloud-generic.yaml 的完整 block

kind: Service
apiVersion: v1
metadata:
  name: ingress-nginx
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  #CHANGE/ADD THIS
  externalTrafficPolicy: Cluster
  type: LoadBalancer
  selector:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
  ports:
    - name: http
      port: 80
      targetPort: http
    - name: https
      port: 443
      targetPort: https

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