[undertow-dev] How to configure Undertow programatically at runtime within Wildfly?

Hello list, I'm currently working on embedding Keycloak's currently dedicated Proxy Server into Keycloak itself. For this I need to be able to dynamically configure Undertow's ProxyHandler and register VirtualHosts at runtime. For reference the discussion thread on keycloak-dev ML: [1] Keycloak uses the Undertow Subsystem provided by Wildfly 10 which is configured via the standalone(-ha).xml. I could already configure a reverse-proxy and additional hosts via jboss-cli but I wonder whether there is an API that I could use to get access to the undertow infrastructure from within a JAX-RS endpoint. I could probably also use the wildfly management client API or perhaps do something via JMX. Would be great if someone could give me a tip or an example for registering / configuring Undertow Handler or Virtual Hosts as described above. Btw. I saw that Undertow ships with a io.undertow.server.handlers.proxy.HostTable but I couldn't find any usage of it in the Undertow codebase - did I miss something or is this dead code? FYI current code of Keycloak dedicated Proxy Server (uses embedded undertow) can be found here: [0] Cherrs, Thomas [0] https://github.com/keycloak/keycloak/tree/master/proxy [1] http://lists.jboss.org/pipermail/keycloak-dev/2016-August/007742.html