Restrict access to admin interface by IP address in Solr 7.7.2

[Ryan W]

What options do I have for restricting access to the admin UI by IP
address?  In Solr 6.x, this could be done with an IPAccessHandler in
jetty.xml, but this doesn't seem to work in Solr 7.x.  Is there some other
way to do it?

Thanks!