[keycloak-user] Monitoring Keycloak

Hi, is there any documentation about how and what is possible to monitor in Keycloak via an API or something? I don't find anything about a special Keycloak monitoring in the docs. Customers are in general curious about the current session count, cache size (and memory allocation) of Infinispan, error rates, etc. Do we have to use standard Wildfly/Infinispan APIs? JMX? How do others solve this? Any ideas? Thanks and regards, - Niko