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Date: Tue, 24 Oct 2017 03:33:00 +0000 (UTC)
From: "Eric Yang (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13102363.1505418463000.41075.1508815980916@Atlassian.JIRA>
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References: <JIRA.13102363.1505418463000@Atlassian.JIRA> <JIRA.13102363.1505418463901@jira-lw-us.apache.org>
Subject: [jira] [Commented] (YARN-7197) Add support for a volume blacklist
 for docker containers
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archived-at: Tue, 24 Oct 2017 03:33:09 -0000


    [ https://issues.apache.org/jira/browse/YARN-7197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16216245#comment-16216245 ] 

Eric Yang commented on YARN-7197:
---------------------------------

The failed unit test is not related to this patch.

> Add support for a volume blacklist for docker containers
> --------------------------------------------------------
>
>                 Key: YARN-7197
>                 URL: https://issues.apache.org/jira/browse/YARN-7197
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: Shane Kumpf
>            Assignee: Eric Yang
>         Attachments: YARN-7197.001.patch, YARN-7197.002.patch
>
>
> Docker supports bind mounting host directories into containers. Work is underway to allow admins to configure a whilelist of volume mounts. While this is a much needed and useful feature, it opens the door for misconfiguration that may lead to users being able to compromise or crash the system. 
> One example would be allowing users to mount /run from a host running systemd, and then running systemd in that container, rendering the host mostly unusable.
> This issue is to add support for a default blacklist. The default blacklist would be where we put files and directories that if mounted into a container, are likely to have negative consequences. Users are encouraged not to remove items from the default blacklist, but may do so if necessary.


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