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https://issues.apache.org/jira/browse/YARN-7815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16341728#comment-16341728
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Miklos Szegedi commented on YARN-7815:
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[~ebadger], thank you for raising this. I am just wondering whether it would be
more secure mounting 2. and appcache/filecache read only but not mounting 4.
This would improve security by not letting apps view and modify each others
directories. One reason to containerize is to isolate apps from each other, is
not it?
> Mount the filecache as read-only in Docker containers
> -----------------------------------------------------
>
> Key: YARN-7815
> URL: https://issues.apache.org/jira/browse/YARN-7815
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Shane Kumpf
> Assignee: Shane Kumpf
> Priority: Major
>
> Currently, when using the Docker runtime, the filecache directories are
> mounted read-write into the Docker containers. Read write access is not
> necessary. We should make this more restrictive by changing that mount to
> read-only.
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