I was reading Keycloak documentation about Login Events and configuring external database and I could not find the answers for the following:
What is the maximum expiration time for Login Events for its built in database?
If nothing is configured for expiration time in Admin Console, what will be the default value?
If I configure external database does that mean that all Keycloak schema is generated and data persisted in external database or can I specify to persist only Login Events there?
UPDATE: I manage to find the answers;
Maximum expiration time is forever
If nothing is configured for expiration time in Admin Console,default value is 0, which means never expire
Configuring external database means that all Keycloak schema is
generated automatically upon deployment and all data will be
persisted in configured external data source
Related
I wanted to create an webapp using JHipster with Keycloak and ran into a problem:
There is no deal to create new users using Keycloak or connecting user specific data to these users.
But if I want to delete a user I have to do that via Keycloak too, so the entry in JHipsters JHI_USER, the role-assignments and all the data created by this user will not be affected from these deletion.
So what I can do to make it possible to delete these user's data as well?
If Keycloak supported SCIM, you could use Apache SCIMple to sync your users. Here's a demo script that shows how to do it with Okta:
https://github.com/mraible/okta-scim-spring-boot-example/blob/main/demo.adoc
I have setup Keycloak as a SAML broker, and authentication is done by an external IdP provided by the authorities. Users logging in using this IdP are all accepted and all we need from Keycloak is an OAuth token to access our system.
I have tried both the default setup using H2 and running with an external MariaDB.
The external IdP provides us with a full name of the user and a personal ID. Both data are covered by GDPR and I really do not like the sound of storing that data in a database running in the DMZ. Opening up for Keycloak to access a database in the backend is also not a good solution, especially when I do not need users to be stored.
The benefit of running without a database is that I have a simpler DMZ setup as I really do not need to store anything about the users but on the backend.
Do I need a database, and if not how do I run Keycloak without it?
Do I need a database, and if not how do I run Keycloak without it?
Yes, however, out-of-the-box Keycloak runs without having to deploy any external DB. From the Keycloak official documentation section Relational Database Setup one can read:
Keycloak comes with its own embedded Java-based relational database
called H2. This is the default database that Keycloak will use to
persist data and really only exists so that you can run the
authentication server out of the box.
So out-of-the-box you cannot run Keycloak without a DB.
That being said from the same documentation on can read:
We highly recommend that you replace it with a more production ready external database. The H2 database is not very viable in high concurrency situations and should not be used in a cluster either.
So regarding this:
The benefit running without a database is that I have a simpler DMZ
setup as I really do not need to store anything about the users but
on the backend.
You would still be better offer deploying another DB, because Keycloak stores more than just the users information in DB (e.g., realm information, groups, roles and so on).
The external IdP provides us with a full name of the user and a
personal ID. Both data are covered by GDPR and I really do not like
the sound of storing that data in a database running in the DMZ.
Opening up for Keycloak to access a database in the backend is also
not a good solution, especially when I do not need users to be stored.
You can configured that IDP and Keycloak in a manner that the users are not imported to the Keycloak whenever those user authenticate.
We are currently in the process of migrating our user authentication to Keycloak, using an OIDC server. The issue is that the architecture of some of our client applications rely on existing user tables, linked to numerous other tables throughout the services.
How can we go about keeping Keycloak users in sync with the client user, so that if a customer deletes or creates a user on Keycloak, it's reflected in that client DB? Is this generally done through overwriting OIDC methods?
Similarly, when a user logs in through Keycloak, we will require a lookup on the client DB to get additional attributes for the access token, such as the client userId and accountId for that user. Can this be done via overwriting thetransformAccessToken method and making a request to the client BE?
We are using Keycloak 3.4.0 / Keycloak.js in our single page app. Keycloak stores its data within a MariaDB.
When I restart the Keycloak server (NOT MariaDB) and refresh my single page app I am redirected to the login page. I thougt that Keycloak stores all tokens within its database, shouldn't these tokens still be valid after a restart? Or is it expected that all sessions are logged out?
Do I have to use offline tokens to support this scenario?
The offline token is valid even after a user logout or server restart.
https://www.keycloak.org/docs/3.4/server_admin/index.html#_offline-access
This is written by one of the members of the Keycloak development team:
The JPA user session provider was
dropped (performance was horrible so we deemed it unusable). The user
session persister is only used for offline sessions, they survive a server
restart.
So yes, it seems like they removed it because of performance related issues. Here you've got the whole thread.
We are considering to use the keycloak as our SSO framework.
According to the keycloak documentation for multi-tenancy support the application server should hold all the keycloak.json authentication files, the way to acquire those files is from the keycloak admin, is there a way to get them dynamically via API ? or at least to get the realm public key ? we would like to avoid to manually add this file for each realm to the application server (to avoid downtime, etc).
Another multi-tenancy related question - according to the documentation the same clients should be created for each realm, so if I have 100 realms and 10 clients, I should define the same 10 clients 100 times ? is there an alternative ?
One of our flows is backend micro-service that should be authenticated against an application (defined as keycloak client), we would like to avoid keeping user/psw on the server for security reasons, is there a way that an admin can acquire a token and place it manually on the server file system for that micro service ? is there a option to generate this token in the keycloak UI ?
Thanks in advance.
All Keycloak functionality is available via the admin REST API, so you can automate this. The realm's public key is available via http://localhost:8080/auth/realms/{realm}/
A realm for each tenant will give a tenant-specific login page. Therefore this is the way to go - 10 clients registered 100 times. See more in the chapter Client Registration of the Keycloak documentation. If you don't need specific themes, you can opt to put everything in one realm, but you will lose a lot of flexibility on that path.
If your backend micro service should appear like one (technical) user, you can issue an offline token that doesn't expire. This is the online documentation for offline tokens. Currently there is no admin functionality to retrieve an offline token for a user by an admin. You'll need to build this yourself. An admin can later revoke offline tokens using the given admin API.