I'm not sure what you're referring to when you say "such young OS". Solaris zones and ZFS have been around for almost a decade. Docker is young, but it wraps ar

I'm not sure what you're referring to when you say "such young OS". Solaris zones and ZFS have been around for almost a decade. Docker is young, but it wraps around LXC, cgroups, AUFS, and namespaces. Cgroups and AUFS were introduced in 2006. Namespaces are more recent, but they are basically a reimplementation of concepts from OpenVZ and VServer (and the latter is more than 10 years old). FreeBSD jails are great, and they have also been around for a while; but they are still lacking a lot of features (a jail doesn't have its own network stack, and resource accounting and limiting isn't as evolved as what cgroups provide), and unionfs is far from being as stable as AUFS. Don't misunderstand me: FreeBSD jails are awesome if you're doing FreeBSD and want lightweight virtualization. For the rest of us, LXC is just as awesome, and docker lowers the barrier of entry considerably! My 2c.