I setup a simple app for nodeadmin as a docker image and published it here:
https://hub.docker.com/r/colinmollenhour/nodeadmin/

Just thought you might want to know of it's existence. I don't really want to maintain it long-term so if you want to setup your own Docker repo with a similar barebones app then I'd be fine to take it down so there are not multiple "nodeadmin" repos. If not it might be worth mentioning in the readme that it can be launched with a one-liner "docker run..." from the pre-built image on Docker Hub.

Cheers!