Kubernetes nginx 入口 Controller 不转发带下划线的 header

Question

我遇到了一个问题，我的 kubernetes nginx 入口 Controller 是 不是 转发带有下划线的标题。
我创建了一个名为 my-release-ingress-nginx-controller 的 configMap带有以下条目。

    enable-underscores-in-headers: "true"

在此之后，我通过描述 nginx 入口 Controller pod 来检查 nginx.conf 文件，使用此命令 kubectl exec -it my-release-ingress-nginx-controller-d7648bcc8-6lfxv cat nginx.conf .我在那里找到了这个 underscores_in_headers on; .即使在这个切换之后，nginx 仍然没有转发带有下划线的 header 。
配置映射:

apiVersion: v1
kind: ConfigMap
metadata:
  name: my-release-ingress-nginx-controller
  namespace: default
data:
  enable-underscores-in-headers: "true"
  ignore-invalid-headers: "false"

ConfigMap 描述:

Name:         my-release-ingress-nginx-controller
Namespace:    default
Labels:       <none>
Annotations:  
Data
====
enable-underscores-in-headers:
----
true
ignore-invalid-headers:
----
false
Events:
  Type    Reason  Age   From                      Message
  ----    ------  ----  ----                      -------
  Normal  CREATE  27s   nginx-ingress-controller  ConfigMap default/my-release-ingress-nginx-controller

部署描述

Args:
  /nginx-ingress-controller
  --publish-service=default/my-release-ingress-nginx-controller
  --election-id=ingress-controller-leader
  --ingress-class=nginx
  --configmap=default/my-release-ingress-nginx-controller

入口描述:

Name:             ingress-resource-1
Namespace:        default
Address:          172.31.14.220
Default backend:  default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
  Host                                               Path  Backends
  ----                                               ----  --------
  api.dev.com  
                                                     /   faq-dev:10013 (172.17.0.3:10013)
Annotations:                                         kubernetes.io/ingress.class: nginx
                                                     nginx.ingress.kubernetes.io/rewrite-target: /
Events:
  Type    Reason  Age                     From                      Message
  ----    ------  ----                    ----                      -------
  Normal  UPDATE  3m10s (x2443 over 20h)  nginx-ingress-controller  Ingress default/ingress-resource-1
  Normal  UPDATE  2m10s (x2483 over 20h)  nginx-ingress-controller  Ingress default/ingress-resource-1

PS:我在 AWS ec2 服务器内使用 minikube 设置了一个单节点 kubernetes 集群。此外，入口被配置为部署而不是守护进程。配置的入口是来自这个存储库的 kubernetes - https://github.com/kubernetes/ingress-nginx

Answer 1

请试试这个

apiVersion: v1
kind: ConfigMap
data:
  enable-underscores-in-headers: "true"
  ignore-invalid-headers: "false"
metadata:
  name: nginx-configuration
  namespace: default

并在 nginx-ingress-controller-deployment 中包含相同的内容

containers:
  - name: nginx-ingress-controller
    image: <YOUR NGINX INGRSS IMAGE_NAME>
    args:
      - /nginx-ingress-controller
      - --configmap=$(POD_NAMESPACE)/nginx-configuration
    env:
      - name: POD_NAME
        valueFrom:
          fieldRef:
            fieldPath: metadata.name
      - name: POD_NAMESPACE
        valueFrom:
          fieldRef:
            fieldPath: metadata.namespace