Docker container; Can't access server admin

I’m using the docker container lucee/lucee:6.1.1.118-light and when I try to hit “lucee/admin/server.cfm” I get a Tomcat 404 page.

If I “mkdir webapps/ROOT” in the container, I can then successfully access the admin interface. Thanks to Colby Ackerfield at RealGo for tracking that one down.