Feature request: support .netrc for https credentials

[yujunz]

HTTP credentials may be required for some private repository. It would be nice to support .netrc to provide them, just like the way terraform remote module does.

For example

kustomize build
Username for 'https://code.internal.local':

I would expect it loads the credential from ~/.netrc

machine code.internal.local
login yujunz
password secret

[Liujingfang1]

You can set ssh to access the private repos. Then you won't see the username prompts.

[yujunz]

The problem is that the repo is quite huge, e.g. giga bytes mono repository. It seems git+ssh does not support partial clone well.

I'm pulling the source from some repository browse plugin like gitiles which provides https access only.

[yujunz]

It seems plain tarball url is not supported at all, only GitHub, Azure repo and AWS code commit repo is supported. Is that so?

https://github.com/kubernetes-sigs/kustomize/blob/master/pkg/loader/fileloader.go#L54

//   A base can be either a remote git repo URL, or
//   a directory specified relative to the current
//   root. In the former case, the repo is locally
//   cloned, and the new loader is rooted on a path
//   in that clone.

cc @monopole who seems to be the owner of git related code.

[yujunz]

Suppressed by #923