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https://issues.apache.org/jira/browse/YARN-5534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16255583#comment-16255583
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Eric Yang commented on YARN-5534:
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[~ebadger] [~shaneku...@gmail.com] In YARN-7430, there was mentioned how do we
handle arbitrary docker image from docker hub without consistent uid:gid with
the cluster. That discussion is related to allow defining white listed volume.
We can check the origin of the docker image, if it comes from private
registry, image name that starts with hostname of private registry, then we
allow white list volumes. If image is from public repository, then we disallow
user defined mount. When image has been approved to move from dockerhub to
private repository, then user can store data into HDFS. The approval process
is the safe guard to make sure the uid:gid used by image is compatible with the
cluster. Does this sound reasonable approach to protect against unknown images?
> 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: Shane Kumpf
> Attachments: YARN-5534.001.patch, YARN-5534.002.patch,
> YARN-5534.003.patch
>
>
> 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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