[wildfly-dev] Creating a Keycloak Feature Pack

Stuart Douglas stuart.w.douglas at gmail.com
Wed Sep 10 17:30:15 EDT 2014

Stan Silvert wrote:
> Perhaps it's a little early to start implementing a Keycloak FP, but I'm
> starting to look at it and identify potential issues. So I thought I
> should list the issues here and find out which ones are already
> addressed and which need some time to work out.
> *Task:* Implement a feature pack that adds the Keycloak Auth Server to
> either/both of the _WildFly Web build_ and the _WildFly Full build_.
> Note that this is completely separate from the effort to use Keycloak to
> secure the web console. That only involves Keycloak adapter integration
> destined to ride on top of Elytron.
> Here, we are talking about using a feature pack to add and configure the
> Keycloak Auth Server.
> *Issue #1: Module duplication.* Keycloak needs to install the
> bouncycastle module. This module already exists in the full build but
> not the web build. So you have the same module specified for the
> Keycloak FP and the Full WildFly FP.
> I assume this is already handled? Will the FP mechanism have a problem
> with duplication of modules when I try to add a module to full that
> already exists?

This should work fine. Eventually we may have a solution where you can 
specify a dependency on just some modules in the full build, although 
that is not implemented yet.

> *Issue #2: Adding a subsystem:* It looks like the current mechanism for
> creating configuration files is inappropriate for the Keycloak FP. The
> way this is done right now is that a config file is generated via the
> combination of a template file and a list of subsystem snippets. So you
> would have, for example:
> template-keycloak.xml + subsystems-keycloak.xml = standalone-keycloak.xml
> But that's not what we really want. We don't want a separate
> standalone-keycloak.xml. We really just want to add the keycloak
> subssytem to every generated config file, whatever they may be.

We should be able to add a feature to enable this.


> *Issue #3: Adding a deployment:* The Keycloak auth server is deployed as
> a WAR. We can use the copy-artifacts mechanism to simply copy the WAR
> into the deployments directory. But that doesn't work for a domain where
> you want to have the WAR pre-loaded into the content repository.
> Furthermore, it's probably not the best way to integrate this for
> standalone either.
> What would be a better option?
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