crane: `--platform` does nothing?

[slonopotamus]

Describe the bug

I'm trying to create an image with non-empty platform string by passing --platform to various crane command, but none of them seem to respect it

To Reproduce

What I've tried:

1. crane append --oci-empty-base --platform darwin/arm64 -t <tag> -f <tarball> - nope, manifest doesn't have platform in it
2. crane tag --platform darwin/arm64 <image from previous step> <new tag> - nope
3. crane copy --platform darwin/arm64 <image from first step> <new tag> - still nope

Expected behavior

There is some way to produce platform-specific image via crane

Additional context

• Output of crane version: 0.16.1
• Registry used: ghcr.io

[github-actions[bot]]

This issue is stale because it has been open for 90 days with no activity. It will automatically close after 30 more days of inactivity. Keep fresh with the 'lifecycle/frozen' label.

[slonopotamus]

Never understood stalebots... Issues do not magically fix themselves.

[pvillaverde]

Same here, trying to get a list of image from a repo for a platform does not seems to work. i.e.

docker run -ti --entrypoint "" gcr.io/go-containerregistry/crane:debug sh
/ # crane ls --platform linux/amd64 registry.k8s.io/defaultbackend-amd64
1.1
1.2
1.3
1.4
1.5
/ # crane ls --platform linux/arm64 registry.k8s.io/defaultbackend-amd64
1.1
1.2
1.3
1.4
1.5

In theory this repository should not have images for arm64, and viceversa with this other one:

/ # crane ls --platform linux/arm64 registry.k8s.io/defaultbackend-arm64
1.1
1.2
1.3
1.4
1.5
/ # crane ls --platform linux/amd64 registry.k8s.io/defaultbackend-arm64
1.1
1.2
1.3
1.4
1.5

[github-actions[bot]]

This issue is stale because it has been open for 90 days with no activity. It will automatically close after 30 more days of inactivity. Keep fresh with the 'lifecycle/frozen' label.

[slonopotamus]

https://nostalebots.xyz/