[jira] [Created] (MESOS-7223) Can't mount /dev/log

["Haralds Ulmanis (JIRA)" <ji...@apache.org>]

Haralds Ulmanis created MESOS-7223:
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             Summary: Can't mount /dev/log
                 Key: MESOS-7223
                 URL: https://issues.apache.org/jira/browse/MESOS-7223
             Project: Mesos
          Issue Type: Bug
          Components: containerization
    Affects Versions: 1.1.0
            Reporter: Haralds Ulmanis


I'm trying to mount /dev/log.
ls -l /dev/log
lrwxrwxrwx 1 root root 28 Mar  9 01:49 /dev/log -> /run/systemd/journal/dev-log
# ls -l /run/systemd/journal/dev-log
srw-rw-rw- 1 root root 0 Mar  9 01:49 /run/systemd/journal/dev-log

I have tried mounting /dev/log and /run/systemd/journal/dev-log, both produce same errors:

from stdout:
Executing pre-exec command '{"arguments":["mesos-containerizer","mount","--help=false","--operation=make-rslave","--path=\/"],"shell":false,"value":"\/usr\/lib\/mesos\/mesos-containerizer"}'
Executing pre-exec command '{"arguments":["mount","-n","--rbind","\/data\/mesos-agent\/slaves\/9b7ad711-9381-4338-b3c0-dac86253701e-S93\/frameworks\/a872f621-d10f-4021-a886-c5d564df104e-0000\/executors\/services_dev-2_lb-6.b8202973-04b0-11e7-be02-0a2b9a5c33cf\/runs\/cfb170f0-6c69-4475-9dbe-bb9967e19b42","\/data\/mesos-agent\/provisioner\/containers\/cfb170f0-6c69-4475-9dbe-bb9967e19b42\/backends\/overlay\/rootfses\/890a25e6-cb15-42e3-be9c-0aa3baf889f8\/data\/mesos-agent\/sandbox"],"shell":false,"value":"mount"}'
Executing pre-exec command '{"arguments":["mount","-n","--rbind","\/run\/systemd\/journal\/dev-log","\/data\/mesos-agent\/provisioner\/containers\/cfb170f0-6c69-4475-9dbe-bb9967e19b42\/backends\/overlay\/rootfses\/890a25e6-cb15-42e3-be9c-0aa3baf889f8\/dev\/log"],"shell":false,"value":"mount"}'

from stderr:
mount: mount(2) failed: /data/mesos-agent/provisioner/containers/cfb170f0-6c69-4475-9dbe-bb9967e19b42/backends/overlay/rootfses/890a25e6-cb15-42e3-be9c-0aa3baf889f8/dev/log: Not a directory
Failed to execute pre-exec command '{"arguments":["mount","-n","--rbind","\/run\/systemd\/journal\/dev-log","\/data\/mesos-agent\/provisioner\/containers\/cfb170f0-6c69-4475-9dbe-bb9967e19b42\/backends\/overlay\/rootfses\/890a25e6-cb15-42e3-be9c-0aa3baf889f8\/dev\/log"],"shell":false,"value":"mount"}'

This particular job  i start from marathon and have the following definition (if I change MESOS to DOCKER - it works): 
"container": {
    "type": "MESOS",
    "volumes": [
      {
        "hostPath": "/run/systemd/journal/dev-log",
        "containerPath": "/dev/log",
        "mode": "RW"
      }
    ],
    "docker": {
      "image": "xxxx",
      "credential": null,
      "forcePullImage": true
    }
  },



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