Add Debian 12 Dockerfile

[mthalman]

This is intended to be the replacement for the Debian 11 Dockerfile that will be removed by #1260.

[richlander]

Who is using this style of image at this point. My intuition is that we should have Azure Linux build images and helix test images for everything else. Perhaps I'm missing a scenario.

@sbomer

[MichaelSimons]

Who is using this style of image at this point. My intuition is that we should have Azure Linux build images and helix test images for everything else. Perhaps I'm missing a scenario.

One important instance using this style of image is source-build (although it doesn't use the Debian image specifically). Azure Linux would not be appropriate for Source Build as it is trying to build as close as possible to how maintainers would.

The PowerBI Docker usage report is useful in answering your question. Regarding the Debian image specifically, I only see one usage - dotnet-diagnostics. They are using it for a test leg - https://github.com/dotnet/diagnostics/blob/d12018ba56f7db766272699877908668cba517ef/eng/pipelines/pipeline-resources.yml#L70. Likely the builder image is overkill for their usage.

[richlander]

Last time I looked at the diagnostics repo, it seems like they were using old patterns. I think we need to stop providing them with images perpetuating old patterns. We should be certain we need non-helix images going forward.

[MichaelSimons]

Last time I looked at the diagnostics repo, it seems like they were using old patterns. I think we need to stop providing them with images perpetuating old patterns. We should be certain we need non-helix images going forward.

@hoyosjs and @mikem8361, can you comment on what the Debian requirements are for the diagnostic test leg that is using the buildtools Debian image? It is currently utilizing a "builder" image which carries build tools like cmake, etc.

[mikem8361]

Last time I looked at the diagnostics repo, it seems like they were using old patterns. I think we need to stop providing them with images perpetuating old patterns. We should be certain we need non-helix images going forward.

@hoyosjs and @mikem8361, can you comment on what the Debian requirements are for the diagnostic test leg that is using the buildtools Debian image? It is currently utilizing a "builder" image which carries build tools like cmake, etc.

The diagnostics repo only uses the Debian image for testing so it only needs lldb installed. We don't build anything on it.

[richlander]

Do you need an lldb of a particular version or the one in the distro will typically work?

[mikem8361]

The version that comes with the distro should be good enough.