[systemd-devel] nss-systemd

[Lennart Poettering]

On Di, 05.04.22 10:30, Gildas Bayard (gildas.bayard at hds.utc.fr) wrote:

> Hello,
>
> I'd like to dynamically provide group data when group data is queried by the
> system (as in "getent group").
>
> Since nsswitch can use systemd, I've looked at nss-systemd.
>
> As a first step I tried to define a Static Drop-In JSON User Record (because
> user definition is documented with more details than group definition).
>
> So I added a toto.user in /etc/userdb/ with this
>
> {
>   "userName" : "toto",
>   "uid" : 7777
> }
> and a 7777.user file pointing to toto.user
>
> But when I run "getent passwd", there's no toto user.
>
> I tried to see a bit what's going on with strace and I see that getent opens
> libnss_systemd.so.2 and looks for files in /run/systemd/userdb.
>
> But it's not even trying to read in the directories |etc/userdb/|,
> |/run/userdb/|, |/run/host/userdb/| and |/usr/lib/userdb/|
>
> ||
>
> Any suggestion?

Maybe your systemd version is simply too old? You need v249 at the
least for the above.

Lennart

--
Lennart Poettering, Berlin