L'avis de Bryan Cantrill pourrait bien refroidir l'enthousiasme de quelques-uns:
http://www.theregister.co.uk/2016/01/27/unikernels_dos_era/
https://www.joyent.com/blog/unikernels-are-unfit-for-production

Unikernels are entirely undebuggable.
From a debugging perspective, to say this is primitive understates it: this isn’t paleolithic — it is precambrian.