In a similar vain I've used https://github.com/shellinabox/shellinabox (present in the standard Debian repo) to give easy access to a few commands to relevant people at work who don't like my preferred method for such temporary/intermittent needs (a collection of ssh/sudo/similar based wrappers sometimes hooked together using byubo/parallel-ssh/watch to produce a hacked-together dashboard like display). Mostly read-only stuff (the fully interactive use is possible), even then nothing really sensitive (mostly status information), and local access only (I wouldn't trust something like this on a public network, no matter how careful I thought I was being with the setup), but that is useful enough. For a quick dashboard view, throw together a quick page that links a couple of instances in iframes.