[jira] [Commented] (YARN-5534) Allow whitelisted volume mounts

["luhuichun (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15466568#comment-15466568 ] 

luhuichun commented on YARN-5534:
---------------------------------

[~sidharta-s][~vvasudev] 

> Allow whitelisted volume mounts 
> --------------------------------
>
>                 Key: YARN-5534
>                 URL: https://issues.apache.org/jira/browse/YARN-5534
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: luhuichun
>            Assignee: luhuichun
>
> Introduction 
> Mounting files or directories from the host is one way of passing configuration and other information into a docker container. 
> We could allow the user to set a list of mounts in the environment of ContainerLaunchContext (e.g. /dir1:/targetdir1,/dir2:/targetdir2). 
> These would be mounted read-only to the specified target locations. This has been resolved in YARN-4595
> 2.Problem Definition
> Bug mounting arbitrary volumes into a Docker container can be a security risk.
> 3.Possible solutions
> one approach to provide safe mounts is to allow the cluster administrator to configure a set of parent directories as white list mounting directories.
>  Add a property named yarn.nodemanager.volume-mounts.white-list, when container executor do mount checking, only the allowed directories or sub-directories can be mounted. 



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