helmchk

helmchk

helmchk is a cli tool that can extract all the variables used in the templates of a Helm chart and compare them with the default values configured in the values.yaml file.

Install the latest version of helmchk with:

$ go install github.com/amurant/helmchk@latest

Run helmchk on a chart directory:

$ helm pull jetstack/cert-manager --untar
$ helmchk ./cert-manager/
value missing from values.yaml: .$.acmesolver.image.tag
value missing from values.yaml: .$.automountServiceAccountToken
...

You can also learn what the allowed exceptions are by running helmchk with the --exceptions flag:

# Learn what the allowed exceptions are
$ helmchk ./my-chart/ > exceptions.txt

# Run helmchk and ignore the exceptions
$ helmchk ./my-chart/ --exceptions exceptions.txt