Even if it is docker it’s still a bash script or something in the container right? Or are people referring to the docker CLI directly changing DNS records somehow?

My best guess is the reason to involve docker would be if you already have a cluster of containers as part of the project. Then you can have a container that does nothing but manage the DNS.

I got permabanned for inciting violence against places when I sarcastically told another commenter that their idea to pour concrete over new housing construction sites would surely solve the housing crisis.