Default-Backend's ConfigMap should support binaryData

[mmueller-rs]

When deploying a Default-Backend, I want to be able to return an error of my style. For that, I'd like to be able to upload pictures (i.e. .png) via ConfigMap.
However, in the ConfigMap-Template, the data section is hardcoded without any option to specify binaryData which I would need to upload pictures.

My experience with Helm-Templating is limited, but maybe

ingress-nginx/charts/ingress-nginx/templates/default-backend-extra-configmaps.yaml

Lines 18 to 21 in cd2aa47

	data:
	{{- with .data }}
	{{- toYaml . | nindent 2 }}
	{{- end }}

could be replaced with:

{{- with .data }}
data:
  {{- toYaml . | nindent 2 }}
 {{- end }}
{{- with .binaryData }}
binaryData:
  {{- toYaml . | nindent 2 }}
 {{- end }}

That way, if no binaryData is present, it should just skip it.

No

No

Kubernetes >= 1.10 is required, see https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.10.md#apps

[k8s-ci-robot]

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[Gacko]

You can always deploy and configure a default backend on your own. The default backend provided by us is not meant to cover all possible use cases. It's rather a default implementation for the API we provide, but it's not meant to cover all use cases as we'd like to focus on the Ingress API.