[systemd-devel] user slice changes for uid ranges

[Jérémy ROSEN]

I don't have a complete solutions, but here are a couple of tools that you
might be able to assemble into something that work
* dropins,  you could do a dropin for every existing UID that sets the
Slice= field
* generators : could be used to generate those dropins....
* also note that if a unit is named a-b-c.service, systemd will look for
dropins named a-b-.service and a-.service... there might be something to do
with that, but I havn't given it much thought

Le ven. 27 sept. 2019 à 18:28, Mantas Mikulėnas <grawity at gmail.com> a
écrit :

> On Fri, Sep 27, 2019 at 5:03 PM Stijn De Weirdt <stijn.deweirdt at ugent.be>
> wrote:
>
>> hi all,
>>
>> i'm looking for an "easy" way to set resource limits on a group of users.
>>
>> we are lucky enough that this group of users is within a (although
>> large) high enough range, so a range of uids is ok for us.
>>
>> generating a user-<uid>.slice file for every user (or symlink them or
>> whatever) looks a bit cumbersome, and probably not really performance
>> friendly if the range is in eg 100k (possible) uids.
>>
>> e.g. if this range was 100k-200k, i was more looking for a way to do
>> e.g. user-1XXXXX.slice or user-100000:200000.slice
>>
>
> As far as I know there isn't a good systemd-native method for this, but
> you can dynamically set slice parameters during PAM processing, as in this
> blog post:
> https://utcc.utoronto.ca/~cks/space/blog/linux/Ubuntu1804SystemdUserLimits
>
> --
> Mantas Mikulėnas
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