Any reason for not specifying the uid parameter for the user?
user { "root":
uid => 0,
comment => "$hostname",
}
Regards,
Jonathan
On 20 July 2010 16:28, Rob McBroom <[email protected]> wrote:
> To start with, I don’t think Puppet did anything wrong here. I’ll pin this
> mainly on `nscd`, but it’s something you might want to know about if you’re
> using both services. I’ll skip the long story of discovery, panic, and
> investigation.
>
> For historical reasons that don’t matter, we do the following on each system:
>
> user { "root":
> comment => "$hostname",
> }
>
> Yesterday, `nscd` on one of our Puppet nodes lost its frakking mind and
> decided there were no users on the box. Puppet comes along, looking to make
> sure the comment for root has the correct value, and sees that there’s no
> such user… so it adds it. I don’t know the exact command Puppet used (since
> it didn’t fail) but either `useradd` or `usermod` was somehow aware of the
> next available UID and that root already existed, so root had its UID (and
> home directory) changed.
>
> That was a fun afternoon. “Why is root’s home set to `/home/root`? Holy shit!
> Why is its UID 1273?!” And of course, though I was able to log in as root, I
> didn’t have permission to examine most log files since its UID wasn’t 0.
>
> Thankfully, the Puppet client was still up and running with UID 0, so I was
> able to throw in a temporary rule to set root’s UID back to 0. After 30
> minutes, I was able to get in and figure out what happened.
>
> Like I said, Puppet didn’t do anything wrong, but I wonder: If its internal
> logic leads it to conclude that it needs to create new user named “root”,
> should it maybe think twice?
>
> --
> Rob McBroom
> <http://www.skurfer.com/>
>
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