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 <[email protected]> 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. >
