Why should I prefer this:
args: [{{ Values.somevalue | quote }}]to this
args: ["{{ Values.somevalue }}"]I feel like I read about the difference somewhere but I can find anything about what "" do in the docs, they only mention | quote. But if the two lines I wrote above are equivalent, why would they bother creating the quote function in the first place?
It looks like quote's actual interesting property is that it can take arbitrarily many parameters, quotes each of them, and puts a single space between each
{{ $v := "foo" }}
{{ quote $v "bar" "baz" }}
{{/* "foo" "bar" "baz" */}}If you had a need to include it in an extended pipeline, the function form could be convenient.
{{ list (quote $x) | toJson }}
{{/* ["\"foo\""] */}}But otherwise it doesn't seem to do anything special, and in particular doesn't do any quote escaping.
{{ $x := "foo" -}}
{{/* All produce "foo": */}}
"{{ $x }}"
{{ $x | quote }}
{{ $x | printf "\"%s\"" }}
{{/* Not what you hoped for: */}}
{{ $y := "bar\", \"baz" }}
{{ $y | quote }}
{{/* "bar", "baz" */}}(FWIW I almost always {{ ... | quote }}; but I think when I started learning Helm I also expected this to actually do escaping and it doesn't.)