On: RancherOS: An OS for Docker Containers

[Animats]

It's not quite an OS for Docker containers yet. It's a distro with special middleware. The next question is how much can be thrown out of the Linux kernel. Or can it be replaced with something more secure? What would it take to run this in Xen without Linux?

[_ytji → Animats]

I think running linux containers without linux would be difficult! You probably want Mirage OS or OSv.

http://www.openmirage.org/

http://osv.io/

[carlos22 → _ytji]

The Joyent guys are running docker in smartos by so called "branded zones". They emulate the Linux Kernel ABI. This works surprisingly well, as they say. See: https://www.joyent.com/developers/videos/docker-and-the-futu...

The cool thing is, that they open sourced the SDC in November 2014.

[jdub → Animats]

Docker is a user interface and policy wrapper around core Linux features. It's not, in itself, a virtualisation or container system. So... not likely!

(But you can use Docker as a user interface / API to non-Linux container implementations -- see all the stuff the Joyent folk are doing.)