[jira] [Created] (MESOS-6340) Set HOME for Mesos tasks

["Cody Maloney (JIRA)" <ji...@apache.org>]

Cody Maloney created MESOS-6340:
-----------------------------------

             Summary: Set HOME for Mesos tasks
                 Key: MESOS-6340
                 URL: https://issues.apache.org/jira/browse/MESOS-6340
             Project: Mesos
          Issue Type: Bug
          Components: containerization, slave
            Reporter: Cody Maloney
            Assignee: Jie Yu


Quite a few programs assume {{$HOME}} points to a user-editable data file directory.

One example is PYTHON, which tries to look up $HOME to find user-installed pacakges, and if that fails it tries to look up the user in the passwd database which often goes badly (The container is running under the `nobody` user):

{code}
    if i == 1:
        if 'HOME' not in os.environ:
            import pwd
            userhome = pwd.getpwuid(os.getuid()).pw_dir
        else:
            userhome = os.environ['HOME']
{code}

Just setting HOME by default to WORK_DIR would enable more software to work correctly out of the box. Software which needs to specialize / change it (or schedulers with specific preferences), should still be able to set it arbitrarily and anything a scheduler explicitly sets should overwrite the default value of $WORK_DIR



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