Author presumes we need Docker in the first paragraph. I suppose this is why they think we need Kubernetes.
I propose using "the operating system" as the basic-unit here.
It already runs on shared hardware thanks to a hypervisor.
Operating systems know how to network.
The entire desire for Docker in a production app comes down to willful ignorance of how software one depends upon is configured.
The entire desire for Docker in a production app comes down to willful ignorance of how software one depends upon is configured.