Re: [ANN] nitro 0.5, a tiny but flexible init system and process supervisor

[Hoël Bézier]

Am Sa, Okt 18, 2025 am 09:58:54 -0400 schrieb Demi Marie Obenour:

On 10/17/25 08:55, Leah Neukirchen wrote:

Hello,

I'm happy to announce a new release of "nitro", a new supervisor akin
to daemontools/runit/perp/s6.

These are the main applications nitro is designed for:
- As init for a Linux or NetBSD machine for embedded, desktop or
  server purposes
- As init for a Linux initramfs
- As init for a Linux container (Docker/Podman/LXC/Kubernetes)
- As unprivileged supervision daemon on generic POSIX systems

nitro 0.5 is pretty much feature complete and now supports (relative
to the the previous release announcement):
- usage as NetBSD init
- s6-compatible readiness notification
- event-driven nitroctl which can perform multiple actions in parallel
- improved usability and robustness
- new test suite, which passes on new and old Linux, FreeBSD, NetBSD, OpenBSD

Do you plan to support cgroups on Linux?  Those allow for much
more robust supervision, including of daemons that do nasty things
like double-fork.  It's also necessary to be able to terminate child
daemons reliably without the use of PID namespaces.

Ain’t process group ids enough for that?

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