I use this. They’re very effective.

Theyre called MoCA adapters

I always liked Mikrotik. Not the most open of router but the most documented and configurable I’ve seen with a web, gui, ssh, or telnet I’ve seen

Yes and usually sane developers allow you to specify external mysql instances.

Delving into the politics many view docker as a standalone system that shouldn’t need external items so they leave their db internal. Which goes against having configurations external.

But then you have external databases that you need to know enough to setup ahead of time to allow the docker to use and now I gave myself a headache

Expression of an opinion is starting a sentence with “I think that x…”

OP wasn’t expressing an opinion but stating items that I wanted to get examples of.

I’ll need to get some links on any of this. But I generally use VM’s or VPS my self.