Yeah, I agree and I think that FreeBSD jails in particular are much better (to be fair, I am not very well informed on Solaris Zones, so maybe they're the best). They are certainly much less ostentatious and do not try to redo everything for their own little subworld like Kubernetes does.

I sat down one day to try to write down what would make Linux containers/orchestration usable and good, and realized after about 20 minutes that I was describing FreeBSD jails almost to a T. The sample configuration format I theorized is very close to the real one.

However, I think that there's good reason for actual deployments of containerized systems to remain niche, as it did until the VCs started dumping hundreds of millions into the current Docker hype-cycle, and the big non-Amazons jumped on board as a mechanism to try to get an advantage over AWS.

What people really want are true VMs nearly as lightweight and efficient as containerized systems. In fact, I think many people wrongly believe that's what containerized systems are.