Stop docker when not using it

Is there a way to stop docker to release the resources it uses? I mean I don’t use it all the time and perhaps freeing RAM helps when not using it.

(Whale), “Quit Docker”? Or, in the Docker Toolbox world, docker-machine stop default?

(I do, definitely, sometimes have Docker-related memory pressure, and stopping Docker when I’m not using it helps a lot.)

Ah, of course, quit the whale, silly me. Perhaps it would be nice to have a Stop menu item that would leave the whale on tray or something.

Yes.There should be a stop menu.