How can I config the same behavior in nginx ingress controller as in nginx?

Question

In nginx, I've got some configuration like this:

    location /admingateway/ {
       proxy_pass      http://localhost:8001/admingateway/;

       proxy_set_header        Host                    $host:$proxy_port;
       proxy_set_header        X-Real-IP               $remote_addr;
       proxy_set_header        X-Forwarded-For         $remote_addr;
       proxy_set_header        Via                     "nginx";   
 }

My question is how can I configure the same behavior in my ingress yaml for the 4 header settings?

Answer 1

You must use the

nginx.ingress.kubernetes.io/server-snippet

Annotation in order to add custom Nginx configuration

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
    name: nginxconfigsnippet
    annotations:
        nginx.ingress.kubernetes.io/server-snippet: |
         location /admingateway/ {
       proxy_pass      http://localhost:8001/admingateway/;

       proxy_set_header        Host                    $host:$proxy_port;
       proxy_set_header        X-Real-IP               $remote_addr;
       proxy_set_header        X-Forwarded-For         $remote_addr;
       proxy_set_header        Via                     "nginx";   
 }
spec:
  rules:
    - http:
        paths:
.
.
.

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