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From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5394) Correct the wrong file name when mounting /etc/passwd to Docker Container
Date Mon, 18 Jul 2016 14:45:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15382380#comment-15382380
] 

Daniel Templeton commented on YARN-5394:
----------------------------------------

Thanks for catching that, [~tangzhankun]!  The patch itself looks fine, but I have some higher
level concerns.  Without also adding /etc/groups and maybe /etc/shadow, I don't think there's
much value to mounting /etc/passwd.  I'm also worried that the /etc/password mount point may
have been intentional.  [~vvasudev], any thoughts?

> Correct the wrong file name when mounting /etc/passwd to Docker Container
> -------------------------------------------------------------------------
>
>                 Key: YARN-5394
>                 URL: https://issues.apache.org/jira/browse/YARN-5394
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: Zhankun Tang
>            Assignee: Zhankun Tang
>         Attachments: YARN-5394-branch-2.8.001.patch
>
>
> Current LCE (DockerLinuxContainerRuntime) is mounting /etc/passwd to the container. But
it seems to use wrong file name "/etc/password" for container.
> {panel}
> .addMountLocation("/etc/passwd", "/etc/password:ro");
> {panel}
> This causes LCE failed to launch the Docker container if the Docker images don't create
the same user name and UID in it.



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