[keycloak-dev] How to assign new client default roles to existing users?

[Vlastimil Elias]

Hi,

we just found one admin use case which is not covered by existing 
Keycloak and its Admin GUI.

When you create new Client later and define some default role/s for it, 
then there is not any way how to assign these roles to existing users.
Problem is that default roles are assigned to users in DB when they are 
created. Then admin GUI allows to assign roles for one user only, not 
too useful when you have hundreds or thousands of users ;-)
Only workaround for now is to write script which uses REST API to assign 
new default roles to all existing users.

I see these possible solutions:

  * do not assign default roles in DB when user is created, but assign
    them dynamically when user roles are asked - possible cons of this
    solution is that it does not allow to remove default role from
    concrete/selected users
  * keep default roles assignment into DB on user create, but
    automatically assign new default role to all existing users once it
    is defined for client
  * keep default roles assignment into DB on user create, but add some
    manual bulk role assignment action into Admin GUI, which allows
    admin to assign role to existing users.

WDYT, which solution should be better?

Cheers

Vlastimil

-- 
Vlastimil Elias
Principal Software Engineer
jboss.org Development Team

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