title: How to configure nginx when using Helm to install?
body: <p>According to this article one need to set some nginx properties when running a .NET Core 2.x application using https and Azure AD Authentication behind Nginx in a Kubernetes cluster:</p>
  
  <p><a href="https://stackoverflow.com/questions/48964429/net-core-behind-nginx-returns-502-bad-gateway-after-authentication-by-identitys">.Net Core behind NGINX returns 502 Bad Gateway after authentication by IdentityServer4</a></p>
  
  <p>The answer outlines how to do this for a regular Nginx installation, but I would like to do this when installing Nginx in a Kubernetes cluster using Helm.</p>
  
  <p>These are the Nginx properties one need to set:</p>
  
  <pre><code>nginx.conf:
      http{
      ...
      proxy_buffer_size   128k;
      proxy_buffers   4 256k;
      proxy_busy_buffers_size   256k;
      large_client_header_buffers 4 16k;
      ...
      }
  
  
  default.conf:
  location /{
      ...
      fastcgi_buffers 16 16k;
      fastcgi_buffer_size 32k;
      ...
  }
  </code></pre>
  
  <p>The command I use to install Nginx in the Kubernetes cluster is:</p>
  
  <pre><code>helm install stable/nginx-ingress --namespace kube-system
  </code></pre>
  
  <p>How does one set the above properties when installing Nginx using Helm in a Kubernetes cluster?</p>