Release contrast cli for Mac OS on Apple Silicon (nix: aarch64-darwin)

[blenessy]

It would be very appreciated if you guys could release CLIs for other CPU/OS architectures too so that we do not need to run contrast CLI virtualized (emulated) environment. Apart from better UX, running virtualisation/emulation bloats the TCB significantly.

[burgerdev]

Hi @blenessy,

Thanks for the suggestion and sorry for not getting back to you earlier.

Support for aarch64-darwin is on our roadmap, but we're making slow progress towards that goal. Only recently we got some level of Mac support merged upstream (kata-containers/kata-containers#10425). This change needs to be ported to the Microsoft fork, too, or we need to make AKS-CLH-SNP work with the upstream genpolicy tool. After that, we need to either figure out how to cross-compile the VM images on Mac (this may be hard!), or we need to rely on Linux remote builders and explicitly request a Linux build of the images for all CLI target platforms, or we need a way to add the image measurements to the CLI without building them.

This needs some deliberation, and I don't have a good proposal right now.

Cheers, Markus