Tiny Linux distro that runs the entire OS as Docker containers

codebeaker wrote: post #3

Didn't Docker release this themselves (different project) just a week or so ago? I forget the name, and can't seem to find it on their site.

this project is pretty old though. i remember playing with an earlier version sometime around august 2015

Re: Tiny Linux distro that runs the entire OS as Docker containers

#5

Post by kordless » Sat, Apr 29, 2017, 5:28 PM UTC

codebeaker wrote: post #3

Didn't Docker release this themselves (different project) just a week or so ago? I forget the name, and can't seem to find it on their site.

Rancher has been around for a while now, at least a few years.

http://rancher.com/getting-started-with-rancheros/

Re: Tiny Linux distro that runs the entire OS as Docker containers

#6

Post by y4mi » Sat, Apr 29, 2017, 5:31 PM UTC

KaiserPro wrote: post #2

for the ignorant, why would I want to wrap docker inside docker?

they actually mention it in their readme.

> it seemed logical and also it would really be bad if somebody did docker rm -f $(docker ps -qa) and deleted the entire OS

or are you asking why anyone would want a 'docker-os', which has everything but the docker daemon as a container?

Re: Tiny Linux distro that runs the entire OS as Docker containers

#7

Post by thrill » Sat, Apr 29, 2017, 5:36 PM UTC

I've been using RancherOS for a few weeks now and I'm quite delighted with it. A confusion that occurred at first for me was the distinction between Rancher (the project/company), Rancher (the application) which can be used for installation and distribution, and RancherOS, which is the concept of replacing the Init process with Docker. Docker is used in separate instances - one to manage the containers that make the OS, and one for the remaining containers that make your apps.

I think the advent of Docker Swarm probably put a crimp on development and use of Rancher (the app). To me the way forward is Docker's own clustering tools, and the ease of standing up a cluster of Atom processors at www.packet.net where they install (as an option) RancherOS is very attractive.

Re: Tiny Linux distro that runs the entire OS as Docker containers

#8

Post by vkat » Sat, Apr 29, 2017, 5:36 PM UTC

codebeaker wrote: post #3

Didn't Docker release this themselves (different project) just a week or so ago? I forget the name, and can't seem to find it on their site.

linuxkit -> https://github.com/linuxkit/linuxkit

Re: Tiny Linux distro that runs the entire OS as Docker containers

#9

Post by magoon » Sat, Apr 29, 2017, 5:52 PM UTC

KaiserPro wrote: post #2

for the ignorant, why would I want to wrap docker inside docker?

no, it's the OS services that are dockerized. so your containers won't be docker inside docked.

Re: Tiny Linux distro that runs the entire OS as Docker containers

#10

Post by cookiecaper » Sat, Apr 29, 2017, 6:01 PM UTC

CoreOS works the same way. All containers. You can run `toolbox` to get into a systemd-namespace'd Fedora container (any other container can be specified; it's just Fedora by default), from which you're supposed to do all your troubleshooting/analysis (caveat: systemd-namespace does not seem to support `auditd` well).

I still strongly dislike "containers". It's not worth the complexity or instability. Two thumbs way down!