Docker

“So what’s the difference between a container and a virtual machine?” I get this question a lot, usually from someone smart who has been nodding along in meetings without quite wanting to admit they’re fuzzy on it. And the honest answer is that most explanations make things worse. They reach for “hypervisor,” “kernel sharing,” and “hardware abstraction” in the first sentence, and now the person has four new terms to be confused about instead of one. ...

I write a lot about Kubernetes. I run it daily. I genuinely like it. So it might surprise you that I spend a fair amount of time talking people out of it. Here is the reality I keep walking into. A small team, a single product, a roadmap full of real features to build, and someone has decided the first milestone is a Kubernetes cluster. Three nodes minimum, etcd, a CNI, an ingress controller, cert-manager, a monitoring stack. Weeks of work before a single customer sees anything. Everyone nods along, because this is just how serious infrastructure looks in 2026. ...