Trying to survive? It already runs all of Microsoft's cloud services and does just fine. Open-sourcing was more of a good-will move so that the community can also use it, similar to how Apple released FoundationDB.

The links you point to are about developing with SF, which doesn't natively run on Mac OSX. It can run on Linux but has fewer features for now, but this is being worked on. It's not the same as K8S/Mesos/Swarm though so if container orchestration is all you need then you shouldn't use SF.