[keycloak-user] Keycloak JPA UserFederation Adapter in multiple realms with different Datasource names

[Niels Bertram]

Yes studied that one before asking the question, its close but not close
enough. I think I will get away with creating an application managed
persistence context with container managed transaction. Then in the
provider factory I will read the DataSource name from config and create the
entity transaction manager. Am just not too sure if it'll work with the
things you do in Keycloak to access these provider EJBs. I kinda need 1
stateful session bean for each provider instance added to the realm and
that needs its on EntityManagerFactory which enrolls the entity manager in
the JTA from Keycloak. Will report back if I can get something working.
Thanks Niels

On Sat, Feb 10, 2018 at 12:18 AM, Marek Posolda <mposolda at redhat.com> wrote:

> I suggest to look at this example: https://github.com/keycloak/ke
> ycloak/tree/master/examples/providers/user-storage-jpa
>
> AFAIK It's probably closest thing to your usecase, which we have.
>
> Marek
>
> Dne 8.2.2018 v 17:49 Niels Bertram napsal(a):
>
>> Hi there,
>>
>> we have a requirement to set the jndi datasource name on a UserFederation
>> provider when added to a realm to support connecting different realms in
>> the same Keycloak server to different databases. Been through the examples
>> and read a few emails from around 2016 in the developer list but do not
>> find anyone who'd actually done this before. we could create a user
>> managed
>> EntityManagerFactory within the federation provider factory but the
>> question is then how can we inject it into the container context and
>> enlist
>> our transactions in the JTA?
>>
>> Has anyone ever had to implement something like that?
>>
>> Cheers,
>> NIels
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>>
>
>
>