Re: What is old is new.
Welil, if we're going to get into labeling new implementations as old wine in new bottles, let's give credit where credit is due: virtual containers, to my knowledge, first appeared commercially on IBM mainframes. However, the historical containers have little connection to today's implementations, because today's instances are tuned to an entirely different reality: cloud computing. More specifically, the ability to deploy and migrate VMs/containers quickly, which is a concept that simply did not exist on IBM or, IIRC, on Solaris servers.
So, yes, there are historical threads, but, no, they're not the same old thing just repackaged.