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https://issues.apache.org/jira/browse/YARN-7430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16251940#comment-16251940
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Eric Badger commented on YARN-7430:
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bq. If someone is allowing jobs in the mix uid:gid environment without taking
the effort to manage user uid/gid, they are inherently running insecured
environment.
I agree, but I was under the assumption that this was acceptable behavior for
hadoop. I would also like to get rid of this so that we can ensure that hadoop
is secured, but this removes the ability to run containers based on arbitrary
docker images. Basically, this would modify the longterm plan for docker in
hadoop so we need to make sure that we understand what the longterm plan is.
> User and Group mapping are incorrect in docker container
> --------------------------------------------------------
>
> Key: YARN-7430
> URL: https://issues.apache.org/jira/browse/YARN-7430
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: security, yarn
> Affects Versions: 2.9.0, 3.0.0
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Blocker
> Attachments: YARN-7430.001.patch, YARN-7430.png
>
>
> In YARN-4266, the recommendation was to use -u [uid]:[gid] numeric values to
> enforce user and group for the running user. In YARN-6623, this translated
> to --user=test --group-add=group1. The code no longer enforce group
> correctly for launched process.
> In addition, the implementation in YARN-6623 requires the user and group
> information to exist in container to translate username and group to uid/gid.
> For users on LDAP, there is no good way to populate container with user and
> group information.
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