kuberesource: template GPU per platform

[msanft]

Since the gpu just deploy target relies on the resourcegen tool, the verdict made in 1 was false. The GPU target is only used in development, so hardcoding the platforms should be fine.

[burgerdev]

The other commit lgtm. Maybe it makes sense to separate them?

[burgerdev]

I still believe that this is not the right place to configure this. Rather, this should be modelled similar to the tcb-specs.json and be an input to resourcegen.

[msanft]

How would that work with the just targets? Not saying that it isn't possible, I just wonder what the dataflow would look like.

[burgerdev]

While not ideal, we could configure this with a justfile.env var for now, since we're already doing it for the nodeinstaller target config:

contrast/justfile

Lines 338 to 339 in fb4de83

	sed -i 's/^default_platform=.*/default_platform="Metal-QEMU-TDX"/' justfile.env
	sed -i 's/^node_installer_target_conf_type=.*/node_installer_target_conf_type="k3s"/' justfile.env

Eventually, I'd prefer this to be configured in the cluster instead of in the repo, though.

[msanft]

Maybe it makes sense to separate them?

Done in #2042. We should have that and #2035 merged ASAP so we have a working CI again with the new operator version.

[msanft]

Obsolete with #2070