Windows / Mac OSX

The easiest way to install Docker on Mac or Windows is to install Docker Toolbox.

This will install VirtualBox with a small Linux VM with Docker called a Docker Machine.

It also install Kitematic (Alpha), which is a user interface which wraps around your Docker Machine.

Docker Machine

By default, you Docker Machine VM will automatically mount your C:\Users folder on Windows, or the /Users folder on OSX.

This allows you to have a shared space between your host and your Docker Machine without opening up the root directory of your file system.

Linux

Depending on which flavor of Linux you run, your installation instructions may vary.

Simply follow the guides above to get Docker running in your environment and start playing around with containers.