buildkit-exp for Windows unable to pull remote images

[lydiapostk]

I've set-up the builder for Windows-amd64, as well as the CNI settings. It's able to run a simple Dockerfile.

However, it does not seem to be able to pull from remote repos. I get the following error from my syntax declaration:

Unknown desc = failed to resolve source metadata for 
docker.io/docker/dockerfile:experimental: no match for platform in manifest: not found"

When I deleted the docker syntax declaration, and have my Dockerfile start from pulling a base Python image for Windows, I get the following error:

Unknown desc = python:3.8.8-windowsservercore: failed to resolve 
source metadata for docker.io/library/python:3.8.8-windowsservercore: no match for platform in 
manifest: not found"

[profnandaa]

Could you please share your dockerfile, repro steps and platform details?

[tonistiigi]

docker.io/docker/dockerfile:experimental: no match for platform in manifest: not found"

There is no windows version of the dockerfile frontend image atm. (You need to use the builtin one).

Not sure about the other image though. Seems like a proper wcow image.