[keycloak-dev] Example Setup to simplify the development of Keycloak Extensions

Thomas Darimont thomas.darimont at googlemail.com
Tue Feb 12 06:32:08 EST 2019

HI Stian,

Thanks for the feedback. In my experience using Arquillian is rather slow -
at least I haven't seen an example setup that doesn't need 30+ seconds
round-trip time per change (without hot-code replacement). Do you have a
fast example at hand (< 10sec round-trip time)?

The aforementioned approach is easy to use and makes a cold-start
round-trip much faster (~5 sec my machine).
Also one can concentrate on the actual extension development first, instead
of figuring out the proper packaging of their extension right from the
beginning, which is IMHO not a nice getting started experience.


Am Di., 12. Feb. 2019 um 12:21 Uhr schrieb Stian Thorgersen <
sthorger at redhat.com>:

> I'd say it would be better to target the real distribution rather than the
> KeycloakServer. It should be reasonably easy to setup Arquillian to use the
> Keycloak distribution from Maven Central and allow it to hot-deploy
> extensions for testing purposes.
> On Tue, 12 Feb 2019 at 09:42, Thomas Darimont <
> thomas.darimont at googlemail.com> wrote:
>> Hello Keycloak-Team,
>> I found a neat setup to simplify the development of Keycloak extensions.
>> I setup a "keycloak-extension-playground" project that contains two or
>> more
>> maven modules:
>> - keycloak-playground-server
>> - simple-auth-extension (example)
>> In the "keycloak-playground-server" module, I wrap a KeycloakServer from
>> the "keycloak-testsuite-utils" library where one could potentially add
>> additional configuration. Note that this library must be in (local) Maven
>> Repository.
>> The "simple-auth-extension" is an example extension module that
>> demonstrates the usage of the Authenticator SPI.
>> I now declare "simple-auth-extension" as a compile time dependency of the
>> "keycloak-playground-server" project. This ensures that it's classes and
>> resources are on the classpath of KeycloakServer. Therefore all SPI
>> implementations in custom extensions can be found. This improves the
>> debugging experience and speeds up development time.
>> The example project can be found here:
>> https://github.com/thomasdarimont/keycloak-extension-playground
>> What do you guys think about this approach?
>> Cheers,
>> Thomas
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>> keycloak-dev at lists.jboss.org
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