A while ago, via T321736, we put together a [[ https://horizon.wikimedia.org/project/instances/2122f5ae-3354-41fa-96e2-eed9efb25a4d/ | virtual machine ]] with a mechanism to be able to build arbitrary artifacts via `Dockerfile`s.
The WMCS team [[ https://lists.wikimedia.org/hyperkitty/list/cloud-announce@lists.wikimedia.org/thread/KJSKLMIVSZ5A5G5F2AMF74EHZUBM53PA/ | has announced ]] that we need to do the yearly claim of projects, and I just did. But I also noticed that the instance is running Bullseye and that has now been [[ https://wikitech.wikimedia.org/wiki/News/2025_Cloud_VPS_Bullseye_deprecation | deprecated ]].
AFAIU, `airflow-dags` no longer uses this mechanism, but `conda-analytics` still does.
In this task we should:
[x] double check if we still rely on this mechanism, or if we can perhaps move to bubbler? We do still rely on this for `conda-analytics`, and blubber is not built for these kind of use cases.
[] if we still need this mechanism, then we need to upgrade this gitlab runner to whatever latest LTS version and remove the old one
[] regardless, we should clean up projects that used this mechanism