There are many other benefits to unikernels especially depending on which implementation you choose to go with. For example, MirageOS and Rumprun are good exam

There are many other benefits to unikernels especially depending on which implementation you choose to go with. For example, MirageOS and Rumprun are good examples of clean-slate vs current systems. I'd recommend reading some of the articles at http://unikernel.org/resources http://unikernel.org/resources to get better view of this. As for 'a user friendly mechanism like Docker' ... well, I hope today's news convinces you that it's in progress.