[keycloak-dev] Keycloak installation based on MongoDB

[Marek Posolda]

Hi,

Thomas asked me to investigate possibility of using NoSQL database 
(MongoDB) instead of Picketlink as storage of Keycloak identity data. At 
this moment, I have working MongoDB prototype here 
https://github.com/mposolda/keycloak/tree/nosql . Keycloak already has 
flexible identity model, which easily allows to provide different 
abstraction for storing of identity data, so I just needed to create my 
own implementations of KeycloakSessionFactory and KeycloakSession 
interfaces and model classes. I almost didn't need to touch existing 
code despite some changes in KeycloakApplication class to allow 
switching between Picketlink and MongoDB. Note that Picketlink is still 
used by default if you don't provide system property 
-Dkeycloak.sessionFactory=mongo.

To try it, you just need working installation of MongoDB and then you 
can run Keycloak with:

./standalone.sh -Dkeycloak.sessionFactory=mongo 
-Dkeycloak.mongodb.host=localhost -Dkeycloak.mongodb.port=27017 
-Dkeycloak.mongodb.databaseName=keycloak

(Last 3 properties can be usually omited as localhost/27017/keycloak are 
default values for host, port and databaseName. MongoDB is installed on 
port 27017 by default and it automatically creates database "keycloak" 
if it doesn't exist).

There is still work needed, but actually almost everything, which works 
for Picketlink works for MongoDB as well. Let me know if you have any 
questions, concerns.

Marek