Um no. Containers are not just chroot. Chroot is a way to isolate or namespace the filesystem giving the process run inside access only to those files. Containers do this. But they also isolate the process id, network, and various other system resources.
Additionally with runtimes like docker they bring in vastly better tooling around this. Making them much easier to work with. They are like chroot on steroids, not simply marketing fluff.
So they say I can run a dozen of different web applications on the same machine all on the same port internally and different port externally and have a reverse proxy forwarding the traffic to the correct port based on the hostname it was called with by simply using a bunch of chrooted environments?
Slightly related: my own blogpost about demistifying containers. It takes a quite different approach from the OP and focuses on a different side of containers. Would appreciate any feedback!
Today i learn chroot is a word
