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From "Jim Brennan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7654) Support ENTRY_POINT for docker container
Date Wed, 09 May 2018 15:12:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16468949#comment-16468949
] 

Jim Brennan commented on YARN-7654:
-----------------------------------

{quote}docker logs does not seem to separate out stdout from stderr. [This issue|https://github.com/moby/moby/issues/7440]
is unresolved in docker. This is different from YARN log file management. It would be nice
to follow yarn approach to make the output less confusing in many situations.
{quote}
[~eyang] did you reference the correct link here? The [issue|https://github.com/moby/moby/issues/7440]
referenced appears to have been closed as a user misunderstanding.

> Support ENTRY_POINT for docker container
> ----------------------------------------
>
>                 Key: YARN-7654
>                 URL: https://issues.apache.org/jira/browse/YARN-7654
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>    Affects Versions: 3.1.0
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Blocker
>              Labels: Docker
>         Attachments: YARN-7654.001.patch, YARN-7654.002.patch, YARN-7654.003.patch, YARN-7654.004.patch,
YARN-7654.005.patch, YARN-7654.006.patch, YARN-7654.007.patch, YARN-7654.008.patch, YARN-7654.009.patch,
YARN-7654.010.patch, YARN-7654.011.patch, YARN-7654.012.patch, YARN-7654.013.patch, YARN-7654.014.patch,
YARN-7654.015.patch, YARN-7654.016.patch, YARN-7654.017.patch, YARN-7654.018.patch, YARN-7654.019.patch,
YARN-7654.020.patch, YARN-7654.021.patch
>
>
> Docker image may have ENTRY_POINT predefined, but this is not supported in the current
implementation.  It would be nice if we can detect existence of {{launch_command}} and base
on this variable launch docker container in different ways:
> h3. Launch command exists
> {code}
> docker run [image]:[version]
> docker exec [container_id] [launch_command]
> {code}
> h3. Use ENTRY_POINT
> {code}
> docker run [image]:[version]
> {code}



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