But when you do Kubernetes or Docker, there’s almost always another stack beneath you that you have to build and maintain. Whether that’s bare metal (yikes), VMWare ($$$) or AWS/Azure (not self-hosting) you still have to deal with upgrades / API changes / hardware refresh there.
Container solutions really only get you out of “doing the work” if you can leverage a prepackaged container management solution from a cloud provider. Self-hosted containers are frequently more trouble than they’re worth since the solutions for managing them are either insanely complex (Kubernetes) or so simplistic you have to write some custom logic to build/deploy them.
Agree with the point about CentOS though; at this point the idea of a Linux “distro” is dead. The way forward is a hypervisor model where the kernel is protected from application code (including all dependencies from the userland) with barebones Docker images like Alpine used as the basis for a declaratively-defined system. The one thing Docker does very well is isolate dependencies which reduces integration complexity and lets you modularuse the whole thing. Incidentally this actually makes it harder for hobbyists to get into as the mental model for it has a lot more complexity and you need more expert knowledge to write the scripts to build and configure your app automatically.