Customize the default backend for an NGINX Ingress Controller on your kubernetes cluster. A single Docker image with an NGINX server that handles most status codes.

LIVE Preview - 404 status code

LIVE Preview - 403 status code

You can use the defaultBackend property of the ingress-nginx helm chart like this:

defaultBackend:
  enabled: true
  image:
    # Or your own forked one...
    repository: dvdblk/custom-default-backend
    tag: "latest"
    pullPolicy: Always
  port: 8080

Fork this repository and edit the HTML inside the content/ directory if you want some CSS / text customization.

If you wish to have a different HTML error page per status code you can omit the ssi part and set up the error pages (e.g. content/404.html, content/500.html) like this:

# default.conf

server {
  # ...

  error_page 400 /404.html;
  location = /404.html {
    internal;
  }

  error_page 500 /500.html;
  location = /500.html {
    internal;
  }

  # ...
}