I completely understand what you’re saying. However, I am working hard on making Ubuntu (as well as Debian and SLES) as visible and well documented as (RH)EL. Can you point me to specific areas where you’re missing information? May I also refer you to Deploying an Internal Application Guide in the orcharhino documentation? All procedures are also part of the upstream documentation; they are, however, spread accross guides and somewhat “lost” in the bulk of the EL procedures etc.
Adding deb and yum content from upstream (like Canonical or Rocky Linux) to Foreman is very similar. See Adding DEB Repositories in the Foreman documentation. Did you try this and run into issues?
This is a bit more tricky. I am unsure about the current status of the “Host Register” feature for non-EL hosts. cc @MSinghal
Absolutely. My colleagues and everyone from the Foreman community are working hard to make that happen. Please share your feedback on Foreman and specific issues with the Foreman documentation or maybe even open on issue on Github.
For Ubuntu 22.04, there is the new autoinstall mechanism to provision hosts. This is something different than Debian. The community and my colleagues are currently working on this. cc @bastian-src