Then I brought in Stackato.
This would totally not have worked, if I didn't already have a lot of experience with all this, because the installation steps conveniently didn't mention how you get all of the SSL certificates done in any sort of useful step-order.
The clipboard doesn't seem to work, either, for all VB says it's bi-di. No worries. Emacs in TRAMP mode lets you log in and overcome the limitations of this puny terminal.
There was a one-click install for WordPress, my main driver for doing this project in the first place.
Well, it looks as though there is some 'Docker' gadget that virtualizes the app on the virtualized Ubuntu box.