FYI, we just merged FreeBSD jail support into the OCI runtime spec v1.3[1]. There is already at least one implementation of it[2] as well.

[1]: https://github.com/opencontainers/runtime-spec/pull/1286 [2]: https://github.com/samuelkarp/runj

It already is, if you use most jail managers, this post is a manual approach.

I really don’t like jail managers because I need to learn a non-standard way to operate jails when I already know the manual approach. I just wouldn’t miss the boilerplate. Also, OCI containers > jail managers.