[arch-general] Alternative init system proposal

Damjan Georgievski gdamjan at gmail.com
Tue Feb 9 16:52:23 UTC 2016

On 9 February 2016 at 17:34, Guus Snijders <gsnijders at gmail.com> wrote:
> Op 9 feb. 2016 17:27 schreef "Michał Zegan" <webczat_200 at poczta.onet.pl>:
>> A note about using shell scripts in systemd:
>> Who said you can't? and I don't talk about systemd's init.d
>> compatibility that is disabled in arch. Although you have to write
>> unit files, you can start scripts, so you do not really lose
>> flexibility. Also systemd's isolation capabilities are superior, there
>> are some things you currently cannot do from scripts, like
>> PrivateTmp=yes and stuff.
> Isolation is AFAIK based on cgroups, not the easiest subject, but certainly
> not impossible to implement.

not impossible, if you reimplement systemd :)

> PrivateTmp: Does that more then setting $TEMP to a custom value?
> I'm just being curious here.

yes, it creates a filesystem/mount namespace for the process(es) and mount's a
/tmp/systemd-private-xxxx/ directory as /tmp. from the point of view
of the process it will never see
anything else from the outer /tmp


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