Docker is a kind of technology that packages all the applications and related
dependencies into Containers, thus ensuring that your application works smoothly
and flawlessly in any environment. Docker images are used to create these
containers.
It runs on only Linux and Cloud platforms:
openSUSE 12.3+
Gentoo
ArchLinux
RHEL 6.5+
Fedora 20+
Microsoft Azure
Rackspace