> One of the things that rankles the greybeards is when people think over-hyped tools like Docker are original creations and they don't acknowledge that contain

> One of the things that rankles the greybeards is when people think over-hyped tools like Docker are original creations and they don't acknowledge that containerization has been around for a long time. That does rankle the greybears, but a question: why does it matter? Why does it matter that they "acknowledge that containerization has been around for a long time"? I think it's a reaction to the invading of their space by younger, hipper folk, who don't know how to set up sendmail and don't know perl, etc, etc. That is, the "get off my lawn" crowd. While I get that feeling a lot myself, esp as I get older, I try hard to push it down. What gives me the right to say that X is shit because the Xers don't know about the V and the W that came before? Secondly, I'll challenge your assertion that containers have been around for a long time. I am of course familiar with chroots, Solaris Zones, FreeBSD jails, the LXC stuff that's more recent but still significantly predates Docker, etc. However, Docker is more than prettier LXC. It's also a distribution format and a run-time for that format, and a suite of tools that works well with it. Look at Kubernetes and look at the state of the art in 2005. Not even close!