Happy to see Lunanode rated Really Good. My exact experience during more than three years as a completely happy customer. They don't stock any Alpine Linux, but fetching the install image and setting up is a breeze, and not once, ever, have I had an issue with any of my instances. And highly appreciated: I can clone an instance, download the qcow2 image, fiddle with it locally, upload, and put it back in production. Flexible, easy, clean, no nonsense, reliable, cheap, and absolutely recommended. Don't know about support, though, since so far I have had no cause to call them.