hi igoro@ and myself dch@ have been working on adding generic metadata support to jails. Many thanks to the jails working group for their feedback over recent months.
It's time to get some wider feedback, so I blogged it, including Igor's excellent video - remember to turn the volume up! https://people.freebsd.org/~dch/posts/2025-01-12-jail-metadata The gist is that you can attach public and private metadata to jails, that can be tweaked at runtime, and queried to do clever and useful things, like tagging jails so you can group them, or providing a mechanism to pass a single-use token into a jail, instead of exposing secrets in environment variables or sticking them in a filesystem. This isn't committed to main yet, so you'll need to either just watch the video and read the post, or build from source and include the patch at https://reviews.freebsd.org/D47668 Feedback welcomed, best is via this mailing list https://lists.freebsd.org/subscription/freebsd-jail Thanks, Dave & Igor
