docker run --privileged
Turns off all of the docker security.
Has anyone tried to run a container for something like mesos that execs docker commands, to maybe look like
docker run --privileged -v /:/host -v /run:/run -ti -net=host mesos /bin/sh
This would cause all of / to be mounted in /host and then you could execute
/host/usr/bin/docker for example. Not sure why you would want /var/lib/docker mounted into the mesos container.
On 09/23/2014 09:18 AM, Tim St Clair wrote:
Scott -
When you mentioned running in "privileged mode" mode, what does that mean? Could you provide more details.
Cheers, Tim
*From: *"Tim Chen" <tim@mesosphere.io> *To: *user@mesos.apache.org, "Gabriel Monroy" <gabriel@opdemand.com> *Sent: *Tuesday, September 23, 2014 2:41:17 AM *Subject: *Re: Running mesos-slave in Docker container Hi Grzegorz, To run Mesos master|slave in a docker container is not straight forward because we utilize kernel features therefore you need to explicitly test out the features you like to use with Mesos with slave/master in Docker. Gabriel during the Mesosphere hackathon has got master and slave running in docker containers, and he can probably share his Dockerfile and run command. I believe one work around to get cgroups working with Docker run is to mount /sys into the container (mount -v /sys:/sys). Gabriel do you still have the command you used to run slave/master with Docker? Tim On Tue, Sep 23, 2014 at 12:24 AM, Grzegorz Graczyk <gregory90@gmail.com <mailto:gregory90@gmail.com>> wrote: I'm trying to run mesos-slave inside Docker container, but it can't start due to problem with mounting cgroups. I'm using: Kernel Version: 3.13.0-32-generic Operating System: Ubuntu 14.04.1 LTS Docker: 1.2.0(commit fa7b24f) Mesos: 0.20.0 Following error appears: I0923 07:11:20.921475 19 main.cpp:126] Build: 2014-08-22 05:04:26 by root I0923 07:11:20.921608 19 main.cpp:128] Version: 0.20.0 I0923 07:11:20.921620 19 main.cpp:131] Git tag: 0.20.0 I0923 07:11:20.921628 19 main.cpp:135] Git SHA: f421ffdf8d32a8834b3a6ee483b5b59f65956497 Failed to create a containerizer: Could not create DockerContainerizer: Failed to find a mounted cgroups hierarchy for the 'cpu' subsystem; you probably need to mount cgroups manually! I'm running docker container with command: docker run --name mesos-slave --privileged --net=host -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker:/var/lib/docker -v /usr/local/bin/docker:/usr/local/bin/docker gregory90/mesos-slave --containerizers=docker,mesos --master=zk://localhost:2181/mesos --ip=127.0.0.1 Everything is running on single machine. Everything works as expected when mesos-slave is run outside docker container. I'd appreciate some help.-- Cheers, Timothy St. Clair Red Hat Inc.
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