Keycloak SPI using Quarkus

[akil-rails]

We've to write a couple of KeyCloak SPI's - Authentication and UserStorage - is this something that can we can do with quarkus or should it be a standard java project?

[codespearhead]

Plugin are meant to only use what's offered by bindings in the main application, which in Keycloak's case are SPIs, since those plugins will be bundled with Keycloak itself.

Hence, I'm not sure I understand your question.

This discussion might help: keycloak/keycloak#29243

[akil-rails]

I will clarify the question - currently for the keycloak SPI we use a standard java project , I was wondering if we can build the SPI as a Quarkus extension instead of a standard java project - with the extension we get lots of extra goodies like RestClient & Config amongst others -

[codespearhead]

Yes, you can use Quarkus or anything that compiles to Java bytecode to develop a Keycloak extension.

If your project is structured as a Quarkus extension and that Quarkus extension is meant to be deployed as an extension to another Quarkus instance running inside the Keycloak plugin, as opposed to an extension to the Quarkus instance that powers Keycloak, it'll work.

p2-inc/keycloak-orgs is an example of a non-trivial plugin that, although doesn't use Quarkus, spins up another server with persistence and REST endpoints.