ImageOS and ImageVersion environment variables aren't populated in ubuntu24-full-x64

[MarkIannucci]

I noticed that ImageOS and ImageVersion environment variables are not populated in the ubuntu24-full-x64 image.

It looks like we're trying to do that in the code however, so I'm not sure why it doesn't work:

runner-images-for-aws/releases/ubuntu24/x64/images/ubuntu/scripts/build/configure-environment.sh

Lines 11 to 13 in 5253e26

	# Set ImageVersion and ImageOS env variables
	set_etc_environment_variable "ImageVersion" "${IMAGE_VERSION}"
	set_etc_environment_variable "ImageOS" "${IMAGE_OS}"

I found this issue because the erlef/setup-beam@v1 action will throw the following error when you switch it from ubuntu-latest to a runs-on runner using the ubuntu24-full-x64 image:

Tried to map a target OS from env. variable 'ImageOS' (got undefined), but failed. If you're using a self-hosted runner, you should set 'env': 'ImageOS': ... to one of the following: ['ubuntu18', 'ubuntu20', 'ubuntu22', 'ubuntu24', 'win19', 'win22']

Unfortunately, I can't easily share the repro because it is closed code. That said if we need one, I'm happy to produce it.

[crohr]

Hi @MarkIannucci, does it also happen with the ubuntu22 variant?

[MarkIannucci]

That's quickly testable. Checking :)

[MarkIannucci]

Yes. It reproduces with the ubuntu22 variant.

[crohr]

@MarkIannucci thanks, I suppose it behaves properly if you manually set the env, as per https://github.com/erlef/setup-beam?tab=readme-ov-file#self-hosted-runners ?

[MarkIannucci]

Yes, can confirm. I am doing that in the interim. I am sorry I didn't include that in my initial report to have better helped you prioritize this need.