[keycloak-dev] Allow adapter subsystem to just inject dependencies

Fri Sep 30 06:58:01 EDT 2016

What's the use-case for hawtio on EAP if not for Fuse? With Hawtio on EAP
you need to change some settings in the war to add our login module right?
So not sure why it would be an issue to add jboss-deployment-structure.xml
at the same time?

On 30 September 2016 at 10:35, Marek Posolda <mposolda at redhat.com> wrote:

> On 30/09/16 08:55, Stian Thorgersen wrote:
>
> Wouldn't it actually be better to have the auth-server-url in
> standalone.xml than in the JAAS login module configuration?
>
> Hawtio relies on JAAS and I can't see any nice way how to pass the stuff
> from our subsystem to the JAAS login module. Also I suppose we don't want
> to introduce any keycloak dependencies in hawtio as that would mean other
> complications...
>
> Our adapter subsystem puts the stuff into the JSON string, which is saved
> as servletContext attribute. So what can work is, that hawtio can read it
> from the servletContext and save it to some threadLocal. Then on hawtio
> side, there will be login module, which will read the JSON from threadLocal
> and put it to JAAS sharedState. The Keycloak login module, which will be
> next in the JAAS chain, can then try to see if there is stuff in
> sharedState and if yes, then use it instead of the KeycloakDeployment
> provided by it's JAAS config. Or another possibility that class holding
> threadLocal will be in Keycloak codebase and hawtio will use reflection to
> put the JSON into it (as we don't want keycloak dependencies in hawtio
> directly).
>
> Both approaches looks to me complicated and introducing dependencies on
> keycloak subsystem implementation details into hawtio codebase (reading the
> servletContext attribute etc). Also it will be useful just with hawtio on
> EAP, but not for Hawtio on Fuse. And Fuse seems to be much more important.
>
> Marek
>
>
> On 30 September 2016 at 08:34, Marek Posolda <mposolda at redhat.com> wrote:
>
>> On 29/09/16 10:09, Stian Thorgersen wrote:
>>
>> Oki, so sounds like what you proposed is the way to go. I'm not to keen
>> on option 2 or 3 as they seem a bit artificial. Why do they not need
>> auth-server-url though?
>>
>> Ok, I've created https://issues.jboss.org/browse/KEYCLOAK-3634 . The
>> auth-server-url is needed, but this is provided by the JAAS login module
>> configuration. Hawtio itself just relies on the JAAS. It doesn't have
>> servlet security or any security-constraints in web.xml, so doesn't rely on
>> classic servlet adapter.
>>
>> Marek
>>
>>
>> On 29 September 2016 at 08:18, Marek Posolda <mposolda at redhat.com> wrote:
>>
>>> On 28/09/16 10:58, Stian Thorgersen wrote:
>>>
>>> Not sure even using "<secure-deployment...>" makes sense at all in this
>>> case.  If there's keycloak.json the subsystem still injects the
>>> dependencies, but doesn't do any configuration. Why can't it just rely on
>>> that?
>>>
>>> Without "secure-deployment", you also need the KEYCLOAK in login-config
>>> in web.xml  in addition to keycloak.json.
>>>
>>> Anyway, regarding usability, I suspect it's not an option to require
>>> people to crack inside hawtio.war and change the things in the WAR
>>> directly? Otherwise they can just add jboss-deployment-structure.xml into
>>> the hawtio.war and I don't need to care about subsystem at all.
>>>
>>> Marek
>>>
>>>
>>>
>>>
>>> On 26 September 2016 at 16:39, Marek Posolda <mposolda at redhat.com>
>>> wrote:
>>>
>>>> I've did some testing with hawtio on EAP 7. It works fine, however there
>>>> is one thing in our subsystem, which may improve integration a bit.
>>>>
>>>> Hawtio doesn't use servlet security ( security-constraints in web.xml )
>>>> but they rely on JAAS, which is needed for JMX calls to be performed on
>>>> behalf of JAAS Subject. Hawtio WAR needs to have access to
>>>> keycloak-adapter classes (as it needs login modules for JAAS), however
>>>> it doesn't need subsystem to configure adapter. This is all handled by
>>>> JAAS login module.
>>>>
>>>> In other words, it will be nice if subsystem can just inject
>>>> dependencies ( KeycloakDependencyProcessor ), but ignore adding
>>>> subsystem configuration ( KeycloakAdapterConfigDeploymentProcessor ).
>>>>
>>>> The workaround I used was to add secure-deployment section to
>>>> standalone.xml with some dummy values, which are mandatory for
>>>> subsystem. It works, but it's really not too pretty IMO. Something like:
>>>>
>>>>              <secure-deployment name="hawtio.war">
>>>>                  <resource>does-not-matter</resource>
>>>> <auth-server-url>does-not-matter</auth-server-url>
>>>>              </secure-deployment>
>>>>
>>>> What will be nice is to have some of those possibilities:
>>>>
>>>> 1) Have subsystem to use some default values like "undefined" instead of
>>>> null . This is more a workaround as subsystem will still process the
>>>> KeycloakAdapterConfigDeploymentProcessor. However it's less work and it
>>>> will improve usability, so this will work just fine:
>>>>
>>>> <secure-deployment name="hawtio.war" />
>>>>
>>>>
>>>> 2) Tell the subsystem to ignore
>>>> KeycloakAdapterConfigDeploymentProcessor. Looks like more work, but
>>>> seems to be more proper solution than (1). I can think of:
>>>>
>>>> 2.a) some flag like:
>>>>
>>>> <secure-deployment name="hawtio.war" ignore-deployment-config="true" />
>>>>
>>>> 2.b) Use different element like "deployment" instead of
>>>> "secure-deployment" . The "deployment" will inject dependencies, but
>>>> won't handle adapter configuration. So something like this will work:
>>>>
>>>> <deployment name="hawtio.war" />
>>>>
>>>>
>>>> WDYT?
>>>> Marek
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> keycloak-dev mailing list
>>>> keycloak-dev at lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/keycloak-dev
>>>>
>>>
>>>
>>>
>>
>>
>
>