Is there a simple way to do a http web server or socket?
What's your definition of http web server or socket? Most frameworks nowadays provide you with tools to get a fully working project up and running with just a couple of clicks.
For instance: https://start.spring.io/
I don't think I agree. The role of a sysadmin involved a lot of hand-holding and wrangling low-level details required to keep servers running. DevOps are something completely different. They handle specific infrastructure such as pipelines and deployment scripts, and are in the business of not getting in the way of developers.