[keycloak-dev] Use Cassandra as storage instead of MySQL and MongoDB

Hi, My core backend system use Cassandra and Elasticsearch, running on Wildfly 9. I need to change keycloak data store implementation to use Cassandra instead of MySQL and MongdoDB. I need also change login, sign up to fit with my web app. What is the best way to change as I mentioned above? Best Regards, Sun Chanras