https://github.com/hawkular/hawkular-agent/blob/master/hawkular-wildfly-agent-wf-extension/src/main/resources/system/layers/base/org/hawkular/agent/main/subsystem-snippet.xml

<storage-adapter type="HAWKULAR" username="jdoe" password="password" url="http://${jboss.bind.address:127.0.0.1}:${jboss.http.port:8080}" />
Use bindings.