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https://issues.apache.org/jira/browse/MESOS-6143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15770957#comment-15770957
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Avinash Sridharan commented on MESOS-6143:
------------------------------------------
Have seen a reproduce of this problem for a while, so going to close this as
"Not reproducible" at this point. Please feel free to re-open if and when we
have more data on this.
> resolv.conf is not copied when using the Mesos containerizer with a Docker
> image
> --------------------------------------------------------------------------------
>
> Key: MESOS-6143
> URL: https://issues.apache.org/jira/browse/MESOS-6143
> Project: Mesos
> Issue Type: Bug
> Components: containerization, isolation
> Affects Versions: 1.0.0
> Environment: OS: Debian Jessie
> Mesos version: 1.0.0
> Reporter: Justin Pinkul
> Assignee: Avinash Sridharan
>
> When using the Mesos containierizer, host networking and a Docker image
> {{resolv.conf}} is not copied from the host. The only piece of Mesos code
> that copies these file is currently in the {{network/cni}} isolator so I
> tried turning this on, by setting
> {{isolation=network/cni,namespaces/pid,docker/runtime,cgroups/devices,gpu/nvidia,cgroups/cpu,disk/du,filesystem/linux}},
> but the issue still remained. I suspect this might be related to not setting
> {{network_cni_config_dir}} and {{network_cni_plugins_dir}} but it seems
> incorrect that these flags would be required to use host networking.
> Here is how I am able to reproduce this issue:
> {code}
> mesos-execute --master=mesosmaster1:5050 \
> --name=dns-test \
> --docker_image=my-docker-image:1.1.3 \
> --command="bash -c 'ping google.com; while ((1)); do date;
> sleep 10; done'"
> # Find the PID of mesos-executor's child process and enter it
> nsenter -m -u -i -n -p -r -w -t $PID
> # This file will be empty
> cat /etc/resolv.conf
> {code}
> {code:title=Mesos agent log}
> I0908 17:39:24.599149 181564 slave.cpp:1688] Launching task dns-test for
> framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006
> I0908 17:39:24.599567 181564 paths.cpp:528] Trying to chown
> '/mnt/01/mesos_work/slaves/67025326-9dfd-4cbb-a008-454a40bce2f5-S2/frameworks/51831498-0902-4ae9-a1ff-4396f8b8d823-0006/executors/dns-test/runs/52bdce71-04b0-4440-bb71-cb826f0635c6'
> to user 'root'
> I0908 17:39:24.603970 181564 slave.cpp:5748] Launching executor dns-test of
> framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006 with resources
> cpus(*):0.1; mem(*):32 in work directory
> '/mnt/01/mesos_work/slaves/67025326-9dfd-4cbb-a008-454a40bce2f5-S2/frameworks/51831498-0902-4ae9-a1ff-4396f8b8d823-0006/executors/dns-test/runs/52bdce71-04b0-4440-bb71-cb826f0635c6'
> I0908 17:39:24.604178 181564 slave.cpp:1914] Queuing task 'dns-test' for
> executor 'dns-test' of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006
> I0908 17:39:24.604284 181571 docker.cpp:1020] Skipping non-docker container
> I0908 17:39:24.604532 181578 containerizer.cpp:781] Starting container
> '52bdce71-04b0-4440-bb71-cb826f0635c6' for executor 'dns-test' of framework
> '51831498-0902-4ae9-a1ff-4396f8b8d823-0006'
> I0908 17:39:24.606972 181571 provisioner.cpp:294] Provisioning image rootfs
> '/mnt/01/mesos_work/provisioner/containers/52bdce71-04b0-4440-bb71-cb826f0635c6/backends/copy/rootfses/db97ba50-c9f0-45e7-8a39-871e4038abf9'
> for container 52bdce71-04b0-4440-bb71-cb826f0635c6
> I0908 17:39:30.037472 181564 cpushare.cpp:389] Updated 'cpu.shares' to 102
> (cpus 0.1) for container 52bdce71-04b0-4440-bb71-cb826f0635c6
> I0908 17:39:30.038415 181560 linux_launcher.cpp:281] Cloning child process
> with flags = CLONE_NEWNS | CLONE_NEWPID
> I0908 17:39:30.040742 181560 systemd.cpp:96] Assigned child process '190563'
> to 'mesos_executors.slice'
> I0908 17:39:30.161613 181576 slave.cpp:2902] Got registration for executor
> 'dns-test' of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006 from
> executor(1)@10.191.4.65:43707
> I0908 17:39:30.162148 181563 disk.cpp:171] Updating the disk resources for
> container 52bdce71-04b0-4440-bb71-cb826f0635c6 to cpus(*):0.1; mem(*):32;
> gpus(*):2
> I0908 17:39:30.162648 181566 cpushare.cpp:389] Updated 'cpu.shares' to 102
> (cpus 0.1) for container 52bdce71-04b0-4440-bb71-cb826f0635c6
> I0908 17:39:30.162822 181574 slave.cpp:2079] Sending queued task 'dns-test'
> to executor 'dns-test' of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006
> at executor(1)@10.191.4.65:43707
> I0908 17:39:30.168383 181570 slave.cpp:3285] Handling status update
> TASK_RUNNING (UUID: 319e0235-01b9-42ce-a2f8-ed9fc33de150) for task dns-test
> of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006 from
> executor(1)@10.191.4.65:43707
> I0908 17:39:30.169019 181577 status_update_manager.cpp:320] Received status
> update TASK_RUNNING (UUID: 319e0235-01b9-42ce-a2f8-ed9fc33de150) for task
> dns-test of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006
> I0908 17:39:30.169173 181576 slave.cpp:3678] Forwarding the update
> TASK_RUNNING (UUID: 319e0235-01b9-42ce-a2f8-ed9fc33de150) for task dns-test
> of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006 to
> master@10.191.248.194:5050
> I0908 17:39:30.169242 181576 slave.cpp:3588] Sending acknowledgement for
> status update TASK_RUNNING (UUID: 319e0235-01b9-42ce-a2f8-ed9fc33de150) for
> task dns-test of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006 to
> executor(1)@10.191.4.65:43707
> I0908 17:39:30.171314 181565 status_update_manager.cpp:392] Received status
> update acknowledgement (UUID: 319e0235-01b9-42ce-a2f8-ed9fc33de150) for task
> dns-test of framework 51831498-0902-4ae9-a1ff-4396f8b8d823-0006
> {code}
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