On Tue, May 14, 2024 at 02:01:09PM +0300, Panu Matilainen wrote:
> On 5/14/24 13:39, Zbigniew Jędrzejewski-Szmek wrote:
> > On Mon, May 13, 2024 at 01:37:11PM +0300, Panu Matilainen wrote:
> > > I outlined the migration process last year in
> > > https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/NEFOV236FJYS2RED2SEOV5YHDFLDX7DK/#OYCWXKAMIXEZNYPVOM6VQ3YYXQ76M3DG
> > > but failed to follow-up, so I'm glad to see this getting revisited.
> >
> > I started looking into this, and I think we need to start at the
> > bottom, i.e. in the setup package.
> >
> > It currently provides /etc/{passwd,group} with a bunch of ids (23 groups)
> > and /usr/lib/sysusers.d/20-setup-{users,groups} with a bunch of entries,
> > but some of the groups listed in sysusers are not listed in the /etc files.
> > IIUC, once we enable the rpm stuff, rpm will create /etc/{passwd,group}
> > automatically, and the file provided by setup will be ignored.
> > (It's specified as %config(noreplace).)
> >
> > Should be drop the static /etc/{passwd,group} from setup?
>
> The static files aren't harmful as long as they're not duplicated in other
> packages.
Harmful — no, but unnecessary and confusing. If we go decide to switch
to the rpm sysusers mechanism, then I think we should go all-in on it.
It doesn't make sense to ship a file in setup that would never be installed.
> I seem to recall seeing systemd-sysusers error out if those files were not
> present, but I might be misremembering and/or it might've changed since
> then. The default mechanism uses useradd/groupadd though, I don't know if
> those support non-existent /etc/{passwd,group}.
There might have been bugs for some specific cases, but in general
sysusers was always intended for starting with empty /etc. We certainly
test that case in our tests.
Zbyszek
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