So if you'll indulge me -- this list is exactly why a system like Kubernetes is valuable and why I think personally that it contains a lot of essential complexity.

Kubernetes attempts to do all of the above, which is why it's so massive, and I'd argue it's actually less complex than knowing all the tools above -- but it's an equal degree less universally applicable. In this way, it's perfect for the dev who never wants to "do ops", and less so for the dev that already knows ops (or any regular sysadmin/ops person), because they already know all these answers.