[Freeipa-devel] Disabling Schema Compatibility rule

[Martin Kosek]

On 03/04/2016 10:10 AM, Alexander Bokovoy wrote:
> On Fri, 04 Mar 2016, Martin Kosek wrote:
>> Hi Alexander and others,
>>
>> As you know, SSSD 1.13.4 added support of reading the native SUDO tree [1].
>> This means that FreeIPA deployments with all clients being SSSD 1.13.4 or older
>> will be able to disable the sudoers schema compatiblity tree
>> (cn=sudoers,cn=Schema Compatibility,cn=plugins,cn=config).
>>
>> Right now, I am only aware of an attribute tu disable the whole Schema Compat
>> plugin (exposed via ipa-compat-manage tool), but this would not fly for people
>> with legacy clients reading from Compat tree.
>>
>> I am thinking, is there an easy way we can recommend to admins on how to do
>> disable just certain Schema Compatibility rules? Ideally having a config
>> options something like:
>>
>> schema-compat-enabled: on|off
>>
>> That could be changed via ldapmodify.
>>
>> [1] https://fedorahosted.org/sssd/ticket/1108
> There is nothing like that in slapi-nis. If you want to remove container
> configuration, you just remove it.
> 
> So, doing as DM 'ldapdelete "cn=sudoers,cn=Schema
> Compatibility,cn=plugins,cn=config"'
> is our simplest way.
> 
> One can create an update file for ipa-ldap-updater, for example:
> --8<--8<--8<--8<--8<--8<--8<--
> dn: cn=sudoers,cn=Schema Compatibility,cn=plugins,cn=config
> deleteentry: cn=sudoers,cn=Schema Compatibility,cn=plugins,cn=config
> -->8-->8-->8-->8-->8-->8-->8--
> 
> and then run it as ipa-ldap-updater ./89-remove-sudo-compat-tree.update

This is what I was afraid of...

> I'm not sure if running server upgrade would not restore the
> configuration, though.

I think it would.

> On the other hand, if no users are going to use the configuration, it
> should not hurt anymore to have it enabled. With current slapi-nis state
> there should be no problems anymore.

Well, slapi-nis will still maintain the memory cache, AFAIK.

How difficult would it be to implement

schema-compat-enabled: on|off

? It seems to me as the best way forward.