Thanks for the quick response. That is one of the combinations I tried. The JWT plugin doesn't work with this setup. I get the following:
[2017-08-14T15:05:19,526][WARN ][c.f.s.a.BackendRegistry ] Unable to create instance of class java.lang.reflect.InvocationTargetException with (Settings.class)constructor due to class com.floragunn.dlic.auth.http.jwt.HTTPJwtAuthenticator
[2017-08-14T15:05:19,527][ERROR][c.f.s.a.BackendRegistry ] Unable to initialize auth domain java.lang.NoSuchMethodException: com.floragunn.dlic.auth.http.jwt.HTTPJwtAuthenticator.<init>(org.elasticsearch.common.settings.Settings, com.floragunn.searchguard.action.configupdate.TransportConfigUpdateAction) due to jwt_auth_domain