Yep, jails, containers, solaris zones all the way back to IBM mainframes have been similar core technologies. Docker it self isn't containerization, Docker buil

Yep, jails, containers, solaris zones all the way back to IBM mainframes have been similar core technologies. Docker it self isn't containerization, Docker builds on Linux containers but adds a layer to dramatically simplify the build, distribution and execution of containers and that's what makes it game changing. docker run gtihub.com/some/project That command will clone, build and execute a container based on the contents of a repository by simply dropping a Dockerfile in the root of the project. That's a fundamentally different level of usage beyond any existing container technology.