[Fedora-directory-users] ObjectClass PosixGroup + UID/GID auto-generation

[Michael Ströder]

Kashif Ali wrote:
> how would you search for the next value? I.e search all UID/GID and show 
> you the results, I could then sort them and work out which number should 
> be next?

The idea with using a pool was to increment the ID as pointed out in the 
example code posted by Ryan.

Additionally you should have a unique constraint configured for these 
attributes.

Ciao, Michael.

> 
> 2008/8/12 Michael Ströder <michael at stroeder.com 
> <mailto:michael at stroeder.com>>
> 
>     Ryan Braun [ADS] wrote:
> 
>         On Monday 11 August 2008 11:35, Kashif Ali wrote:
> 
>         But basically,  you just create an object that holds 2 values.
>          The current available UID and GID.  Then your perl script
>         queries ldap for that object,  uses the available UID,  then
>         increments it and writes it back to ldap.
> 
>      > [..]
> 
>         $mesg = $ldap->modify("cn=idPool,ou=Special
>         Users,$config{BASE_DN}", replace => { "uidNumber" =>
>         $config{NextID}+1 } );
> 
> 
>     FWIW the original idea was different: For this to work reliably with
>     multiple instances generating IDs from the same ID pool entry you
>     have to explicitly delete the old value and add the new one. If the
>     ID was already incremented by another process the old value was
>     already replaced and the modify request fails.
> 
>     Ciao, Michael.