I'm working on an itty bittier jeos vm that allows basically any linux userland via docker (rhel, deb, arch etc). It'll ship with zfs and grsecurity on a long-term stable kernel. Completely open source, hackable (core src packages similar to arch PKGBUILDs) and rebuildable from source.

I have tried none of them, but I'm interested in any previous experiences. Can you share your problems with CoreOS?

CoreOS:

During our alpha period, Chaos Monkey (i.e. random reboots) is built in and will give you plenty of opportunities to test out systemd.[1]

Great. While I understand why they do this, I don't want to have to setup a cluster with automatic failover just to try it out.

And then there is etcd. I'd love to use etcd - all I want is a minimal Docker image with etcd installed. When I looked, it seemed like I had to either build it myself, or use a CoreOS image.

I know it's alpha software, but that isn't a great experience.

Boot2Docker[2] OTOH: one 24 M image, burn it to a USB stick, boot it (in about 5 seconds!) and now you have the perfect Dockerhost.

[1] https://coreos.com/docs/quickstart/

[2] https://github.com/steeve/boot2docker

We just added a doc that show you the (very easy) steps to prevent the automatic reboots: http://coreos.com/docs/cluster-management/debugging/prevent-...

Hope that helps.

We have an automatic build of an etcd container on the docker index if that helps you out as well: https://index.docker.io/u/coreos/etcd/

Thanks, and yes it does.