Having such Helm code snippet.

{{ if .Values.configOverrides }}
# Overrides
{{- range $key, $value := .Values.configOverrides }}
# {{ $key }}
{{ tpl $value $ }}
{{- end }}
{{- end }}

What is $ sign in {{ tpl $value $ }}?

CodePudding user response：

From the documentation:

However, there is one variable that is always global - $ - this variable will always point to the root context. This can be very useful when you are looping in a range and you need to know the chart's release name.

So the expression you show in your question...

{{ tpl $value $ }}

...is passing root context as the set of values to be used when expanding the template in $value.