[jira] [Updated] (YARN-7729) Add support for setting the PID namespace mode

["Eric Badger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-7729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Badger updated YARN-7729:
------------------------------
    Labels: Docker  (was: )

> Add support for setting the PID namespace mode
> ----------------------------------------------
>
>                 Key: YARN-7729
>                 URL: https://issues.apache.org/jira/browse/YARN-7729
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Shane Kumpf
>            Assignee: Billie Rinaldi
>            Priority: Major
>              Labels: Docker
>         Attachments: YARN-7729.001.patch, YARN-7729.002.patch, YARN-7729.003.patch
>
>
> Docker has support for allowing containers to share the PID namespace with the host or other containers via the {{docker run --pid}} flag.
> There are a number of use cases where this is desirable:
> * Monitoring tools running in containers that need access to the host level PIDs.
> * Debug containers that can attach to another container to run strace, gdb, etc.
> * Testing Docker on YARN in a container, where the docker socket is bind mounted.
> Enabling this feature should be considered privileged as it exposes host details inside the container.



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