Ignoring sub directories

[Warren Strange]

We have some legacy helm charts with templates in our git repo. They are in a sub directory.  

When I try to create or set a setter, kpt errors out trying to parse one of the helm chart yaml's (which of course is not valid yaml due to Go templating - the joys of Helm, sigh...)

I thought I'd stick a skeleton Kptfile in that directory to see if that would short circuit kpt going into that directory - but it doesn't seem to work.

Any suggestions? 

I gather that any yaml file in git must be valid yaml? (no templating..)

[Phillip Wittrock]

Yes, any *.yaml files must parse as valid yaml.  Though I haven't tried it, I suspect tools such as ytt would work with kpt as the templating is performed as comments and the yaml is still parseable.

The low-level libraries do support matching based on globs: https://github.com/kubernetes-sigs/kustomize/blob/master/kyaml/kio/pkgio_reader.go#L53

It would probably be possible to add a 'glob' field to the Kptfile and wire it into the directory reader / writer library invocations.  We could probably also add a blacklist glob to ignore files as well.

- Phil

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