Hello. On Mon, Apr 04, 2022 at 02:25:27PM +0200, "R. Diez" <rdiez1999@xxxxxxxxx> wrote: > run-on-temporary-cgroup.sh cmd arg1 ... argn. > > The tool should create a temporary cgroup, run the process inside, and > return the same exit code as the user command. This sounds very much like `systemd-run --scope`. > Those requirements are similar to what systemd-run does, but I need an > alternative which does not depend on systemd. Fair enough. > Even if you have systemd, systemd-run is rather convenient, but it is > somewhat heavy weight Then a suggestion of using a container runtime is likely out of question too. > If there is no such a tool, can someone give me some hints on how to > implement one? Is it possible in Shell or Perl? Or do I need to reach > to C / C++? Is there anything similar I could take as basis? There's also libcg [1] (whose cgroup v2 support is WIP AFAIK) with its cgexec utility. I don't know other tools (besides the named previously). You can implement it in whatever environment that can interact with filesystem (and perhaps poll for events), it's all documented in [2] (alternatively [3], which I'd discourage for a new project). HTH, Michal [1] https://github.com/libcgroup/libcgroup/blob/main/README [2] https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html [3] https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v1/cgroups.html
