> Docker is the only one who can deliver a universal set of functionality that is leveraged by all. Why do you say that? I have quite a bit more faith in the d

> Docker is the only one who can deliver a universal set of functionality that is leveraged by all. Why do you say that? I have quite a bit more faith in the design chops of the folks behind Kubernetes (Google, Redhat, CoreOS, and many others) than Docker Inc. Swarm really only touches the surface of the requirements for large scale distributed container orchestration. Kubernetes is complex because the problem it attempts to solve is complex. I'd also add that Kubernetes is dead simple to use. The difficulty is in setting it up - but even that is getting much better.