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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7516) Security check for untrusted docker image
Date Fri, 12 Jan 2018 20:06:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16324489#comment-16324489
] 

Eric Badger commented on YARN-7516:
-----------------------------------

Also, going back to the registry parsing, what about the case where I build an image on the
node myself and then tag it with a name. Think about a single node cluster or similar or manually
pushing images to every node. If I do that, then {{docker.privileged-containers.registries}}
would prevent you from using the image as privileged since it didn't come from a registry.
It would just be local to the node. I'm not sure that parsing for a {{/}} delimiter is the
best method here.

> Security check for untrusted docker image
> -----------------------------------------
>
>                 Key: YARN-7516
>                 URL: https://issues.apache.org/jira/browse/YARN-7516
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>         Attachments: YARN-7516.001.patch, YARN-7516.002.patch, YARN-7516.003.patch, YARN-7516.004.patch,
YARN-7516.005.patch, YARN-7516.006.patch, YARN-7516.007.patch, YARN-7516.008.patch
>
>
> Hadoop YARN Services can support using private docker registry image or docker image
from docker hub.  In current implementation, Hadoop security is enforced through username
and group membership, and enforce uid:gid consistency in docker container and distributed
file system.  There is cloud use case for having ability to run untrusted docker image on
the same cluster for testing.  
> The basic requirement for untrusted container is to ensure all kernel and root privileges
are dropped, and there is no interaction with distributed file system to avoid contamination.
 We can probably enforce detection of untrusted docker image by checking the following:
> # If docker image is from public docker hub repository, the container is automatically
flagged as insecure, and disk volume mount are disabled automatically, and drop all kernel
capabilities.
> # If docker image is from private repository in docker hub, and there is a white list
to allow the private repository, disk volume mount is allowed, kernel capabilities follows
the allowed list.
> # If docker image is from private trusted registry with image name like "private.registry.local:5000/centos",
and white list allows this private trusted repository.  Disk volume mount is allowed, kernel
capabilities follows the allowed list.



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