[openstack-dev] [keystone] LDAP identity driver with groups from local DB

Matt Fischer matt at mattfischer.com
Fri Jul 24 04:51:03 UTC 2015


You want this hybrid backend driver. Bind against LDAP for auth, store
everything else in mysql:


We maintain our own fork with has a few small differences. I do not use the
assignment portion of the driver and I'm not sure anyone does so keep that
in mind.

I know some of the Keystone team has pretty strong opinions about this but
it works for us.

And nice to run into you again...

On Thu, Jul 23, 2015 at 10:00 PM, Julian Edwards <bigjools at gmail.com> wrote:

> Hello,
> I am relatively new to Openstack and Keystone so please forgive me any
> crazy misunderstandings here.
> One of the problems with the existing LDAP Identity driver that I see
> is that for group management it needs write access to the LDAP server,
> or requires an LDAP admin to set up groups separately.
> Neither of these are palatable to some larger users with corporate
> LDAP directories, so I'm interested in discussing a solution that
> would get acceptance from core devs.
> My initial thoughts are to create a new driver that would store groups
> and their user memberships in the local keystone database, while
> continuing to rely on LDAP for user authentication. The advantages of
> this would be that the standard UI tools could continue to work for
> group manipulation.  This is somewhat parallel with ephemeral
> federated user group mappings, but that's all done in the json blob
> which is a bit horrible. (I'd like to see that working with a decent
> UI some time, perhaps it is solved in the same way)
> However, one of the other reasons I'm sending this is to gather more
> ideas to solve this. I'd like to hear from anyone in a similar
> position, and anyone with input on how to help.
> Cheers,
> Julian.
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