Helm: Impossible to pass extraArg argument with 'false' value

[mKaloer]

When using ingress-nginx with Helm, it is impossible to pass a "false" value in the controller.extraArgs value. Since the value evaluates to false, the Helm template assumes that it is nil and hence a flag. Specifically, I'm trying to pass --set controller.extraArgs.metrics-per-host=false, which is passed as --metrics-per-host instead of --metrics-per-host=false.

The relevant template lines are here:

ingress-nginx/charts/ingress-nginx/templates/controller-deployment.yaml

Lines 108 to 114 in f14a981

	{{- range $key, $value := .Values.controller.extraArgs }}
	{{- if $value }}
	- --{{ $key }}={{ $value }}
	{{- else }}
	- --{{ $key }}
	{{- end }}
	{{- end }}