itay-nvn-nv

tested with this image: `kubeflow/pytorch-dist-mnist:latest`(latest tag, pushed at 22/11/2024) https://hub.docker.com/r/kubeflow/pytorch-dist-mnist/tags the links were switched to a public S3 bucket, and download process completes: ``` Using distributed PyTorch with gloo backend...

> Hi [@itay-nvn-nv](https://github.com/itay-nvn-nv) , > > the correct domain you need to use is `index.docker.io`, I just verified it and tag resolution does both work and can also be skipped...

**Update from Original Report:** After extensive debugging, seems like this is **not a bug** but rather a documentation gap / potential enhancement opportunity regarding Docker Hub authentication during tag-to-digest resolution....

@linkvt Thanks! Quick note on `nvcr.io`: initially it seemed broken, but after careful testing it works fine. I probably just made a mistake during my first attempt. The problem is...