docker info?

[Benjamin Perrault]

> On Jul 28, 2015, at 6:55 PM, Larry Rosenman <ler at lerctr.org> wrote:
> 
> On 2015-07-28 20:44, Michael Dexter wrote:
>> On 7/28/15 1:17 PM, Kegan Myers wrote:
>>> Make sure you have permissions. Docker isn't good at figuring out that you
>>> need sudo or other permissions to talk to the socket.
>> Also, do make sure you are using a recent version of 11 CURRENT or a
>> 10.2 BETA/RC. I do not know what errors will be thrown by older
>> versions of FreeBSD with Linux images, though they will support
>> FreeBSD images with some risk of ABI mismatch.
>> Michael
>> _______________________________________________
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> 
> I'm running absolutely top of tree.
> 
> borg.lerctr.org /home/ler $ sudo -s
> Password:
> borg.lerctr.org /home/ler # docker info
> Get http:///var/run/docker.sock/v1.19/info: EOF. Are you trying to connect to a TLS-enabled daemon without TLS?
> borg.lerctr.org /home/ler # ps auxw|grep docker
> root        867   0.0  0.0  14412  2220  -  Is   16:48      0:00.00 daemon: /usr/local/bin/docker[868] (daemon)
> root        868   0.0  0.0  38628 16116  -  S    16:48      0:12.21 /usr/local/bin/docker -d -e jail -s zfs -g /usr/docker -D
> root       3544   0.0  0.0  18772  2548  0  S+   20:54      0:00.00 grep docker
> borg.lerctr.org /home/ler # uname -aKU
> FreeBSD borg.lerctr.org 11.0-CURRENT FreeBSD 11.0-CURRENT #29 r285983: Tue Jul 28 16:15:05 CDT 2015     root at borg.lerctr.org:/usr/obj/usr/src/sys/VT-LER  amd64 1100077 1100077
> borg.lerctr.org /home/ler #
> 
> borg.lerctr.org /home/ler # pkg info docker-freebsd
> docker-freebsd-20150625
> Name           : docker-freebsd
> Version        : 20150625
> Installed on   : Wed Jul 22 11:17:21 CDT 2015
> Origin         : sysutils/docker-freebsd
> Architecture   : freebsd:11:x86:64
> Prefix         : /usr/local
> Categories     : sysutils
> Licenses       : APACHE20
> Maintainer     : kmoore at FreeBSD.org
> WWW            : https://github.com/kvasdopil/docker
> Comment        : Docker containment system
> Annotations    :
> Flat size      : 11.5MiB
> Description    :
> Docker is an open source project to pack, ship and run any
> application as a lightweight container.
> 
> Docker containers are both hardware-agnostic and platform-agnostic.
> This means they can run anywhere, from your laptop to the largest
> EC2 compute instance and everything in between - and they don't
> require you to use a particular language, framework or packaging
> system. That makes them great building blocks for deploying and
> scaling web apps, databases, and backend services without depending
> on a particular stack or provider.
> 
> WWW: https://github.com/kvasdopil/docker
> 
> borg.lerctr.org /home/ler #
> — 

~20% of a few customers containers have had issues - from stability to performance to bizarre behavior - but most of it is rather new stuff based off CoreOS,  Ubuntu 15.x, Debian 8.1, etc. - with CoreOS showing issue the most often. These all have VERY recent kernels, so it’s likely missing ABI functionality in the emulation layer. 

With that said - I’ve found that Ubuntu 12/14 LTS and Centos/RHEL 6.x containers work great. Most Centos 7 ones we’ve tested also seem to be okay - though later 7/7.1 have show high cpu usage and erratic network performance. Once I have time, I might delve deeper into it - though it’s not a huge priority at the moment.

Hopefully that was useful in some capacity.

best,
-bp
@creepingfur
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