无法设置kubernetes ingress-nginx

Question

我在设置kubernetes ingress-nginx时遇到了麻烦，以便在外部公开我的应用程序。下面是我所做的步骤：

应用程序部署：

1. 创建了名为Ingress的命名空间
2. 部署了statefulset集资源，用于在入口命名空间中描述我的应用程序（我们称之为testapp)
3. 创建了ClusterIP服务，使我的应用程序在kube集群（testapp）中的入口命名空间中可用

入口nginx设置：

null

ingress-nginx          NodePort    10.102.152.58   <none>      80:30692/TCP,443:32297/TCP   6d2h

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target:  /
  name: testappingress
spec:
  rules:
  - host: testapp.k8s.myorg.io
    http:
      paths:
      - backend:
          serviceName: testapp
          servicePort: 80
        path: /

ubuntu@ip-10-0-20-81:~/ingress$ kubectl describe ingress testappingress -n ingress
Name:             testappingress
Namespace:        ingress
Address:
Default backend:  default-http-backend:80 (<none>)
Rules:
  Host                      Path  Backends
  ----                      ----  --------
  testapp.k8s.myorg.io
                            /   testapp:80 (<none>)
Annotations:
  kubernetes.io/ingress.class:                 nginx
  nginx.ingress.kubernetes.io/rewrite-target:  /
Events:
  Type    Reason  Age   From                      Message
  ----    ------  ----  ----                      -------
  Normal  CREATE  15m   nginx-ingress-controller  Ingress ingress/testappingress
  Normal  CREATE  15m   nginx-ingress-controller  Ingress ingress/testappingress
  Normal  UPDATE  14m   nginx-ingress-controller  Ingress ingress/testappingress
  Normal  UPDATE  14m   nginx-ingress-controller  Ingress ingress/testappingress

I0317 15:06:00.029706       6 event.go:221] Event(v1.ObjectReference{Kind:"Ingress", Namespace:"ingress", Name:"testappingress", UID:"2c8db73f-48c6-11e9-ae46-12bdb9ac3010", APIVersion:"extensions/v1beta1", ResourceVersion:"1185441", FieldPath:""}): type: 'Normal' reason: 'CREATE' Ingress ingress/testappingress
I0317 15:06:00.039419       6 controller.go:177] Configuration changes detected, backend reload required.
I0317 15:06:00.508433       6 controller.go:195] Backend successfully reloaded.
I0317 15:06:00.568448       6 controller.go:212] Dynamic reconfiguration succeeded.

null

curl http://testapp.k8s.myorg.io

下面是我尝试解决问题的方法：

如果我这样做：

telnet testapp.k8s.myorg.io 80

它将解析为我的ELB classic DNS名称

curl http://testapp 

不确定我还可以做什么来排除为什么我无法通过Ingress访问我的服务的故障？

Answer 1

这是我这边的一个错误。缺少的部分如下：

在ELB上，我没有正确设置侦听器。因此，基本上，所需要的是将80/443端口从ELB指向Ingress服务的节点端口。

ingress-nginx   ingress-nginx          NodePort    10.96.249.168    <none>        80:32327/TCP,443:30313/TCP   25h