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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7654) Support ENTRY_POINT for docker container
Date Fri, 16 Mar 2018 16:04:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16402098#comment-16402098
] 

Eric Yang commented on YARN-7654:
---------------------------------

[~jlowe] Yes, you are right patch 001 doesn't handle shell expansion, and likely to cause
more problems if release schedule happened prior to having a chance to close all holes.  I
am going to stay on course for execv version.  It is a bit late for me to restart the coding
to fix execv problem first then apply entry_point after.  I think it is possible to get this
done within 50k of code changes.

> 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
>         Attachments: YARN-7654.001.patch, YARN-7654.002.patch, YARN-7654.003.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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