Fully agree, this is a typical example of a shitty Swarm/Kubernetes/etc blog post, which gives no real substance - this stuff is covered in first 5 minutes.

We are just deploying our first Kubernetes cluster in production and anything more than basic hello world would be welcome. Like how to configure networking in production, how to route traffic to containers, how to provide volume storage (backups, etc..).

I mean, we'll get there of course, but we opted against Swarm as data is even more lacking than Kubernetes.