Re: docker daemon not found when docker command executed with qsub

From: Rayson Ho <no email>
Date: Mon, 16 Nov 2015 22:26:55 -0500

Xander,

Can you check whether the Grid Engine job environment has the "docker"
group as one of the supplemental groups by submitting a job that runs "id"?

http://man7.org/linux/man-pages/man1/id.1.html

IIRC, Docker requires the process to be a member of the docker group in
order to dial /var/run/docker.sock.

Rayson

==================================================
Open Grid Scheduler - The Official Open Source Grid Engine
http://gridscheduler.sourceforge.net/
http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html




On Mon, Nov 16, 2015 at 7:15 PM, Xander Dunn <xander.dunn_at_icloud.com> wrote:
>
> I have star cluster installed from the develop branch because I need to
use c4 instance types, which aren’t in a released version yet. I have open
grid scheduler 2011.11 installed on an Ubuntu 14.04 AMI.
>
> I have Docker installed in that AMI and the daemon starts on boot. If I
manually ssh into my master node or any worker node and execute a Docker
command, it works. The Docker daemon is found and the command succeeds.
Furthermore, executing any docker command from the master node in the form
`ssh node001 docker pull IMAGE` also works correctly.
>
> However, those same commands, when executed with qsub, will fail because
the running Docker daemon can’t be found:
> Post IMAGE: dial unix /var/run/docker.sock: permission denied.
> * Are you trying to connect to a TLS-enabled daemon without TLS?
> * Is your docker daemon up and running?
>
> Example: `qsub -V -b y -cwd docker pull ubuntu:14.04`
>
> What’s the difference in the way qsub executes commands that’s causing
this?
>
> Thanks,
> Xander
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Received on Mon Nov 16 2015 - 22:26:57 EST