Re: stop posting useless cruft and get to work (systemd and Linux are *fundamentally incompatible* -> and I can prove it)

[Cameron Norman <camerontnorman@gmail.com>]

El Wed, 26 de Mar 2014 a las 9:03 PM, gustavo panizzo <gfa> <gfa@zumbi.com.ar> escribió:

On 03/26/2014 11:49 PM, Cameron Norman wrote:
I wonder if dbus activation

could be used to accomplish this. Of course, then one would not be able to put (in the case of Upstart) the socket bridge, dbus bridge, dbus, or anything those services need to boot into a cgroup, but one can still put stuff like Apache, lightdm/gdm/kdm/sddm, nginx, et al into a cgroup. Another option is to push the kernel maintainers to allow delegating parts of the cgroups tree to other processes, so that the init system could say "you get a sub-hierarchy, you get a sub-hierarchy" without the complication of multiple separate hierarchies. How do you suggest this integration with cgroups be done?

i just want to put services inside cgroups, no socket activation, no dbus, no dbus activation.

Haha. The problem there is that cgmanager uses dbus! So you need dbus installed + started before you can use cgroups with later kernels.

i would use it for servers, apache and friends, what i would really like is to be able to run multiple instances of the same service each on it's own cgroup. something like su - user -g cgroup_name -c command or a flag to start-stop-daemon, cgroups could be created in advance by an init script (a Required-Start in lsb slang)

I think cgexec is what you are looking for here. This would break with later versions of the linux kernel, though, because you need one centralized writer (e.g. cgmanager or systemd).

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Cameron Norman