[jira] [Commented] (YARN-5534) Allow user provided Docker volume mount list

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

    [ https://issues.apache.org/jira/browse/YARN-5534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16259990#comment-16259990 ] 

Shane Kumpf commented on YARN-5534:
-----------------------------------

I've updated the title and description to better reflect the current scope of the issue. I'm attaching a new patch that adds support for the user provided mount list.

One item I did want to discuss. We do still have {{YARN_CONTAINER_RUNTIME_DOCKER_LOCAL_RESOURCE_MOUNTS}} which I believe we could do away with in favor of {{YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS}}. The challenge is the additional validation currently being done for that option and it would be a change in behavior. I don't think the additional validation is necessary with the changes in YARN-6623, and any validation should be handled by c-e anyway. I don't expect {{YARN_CONTAINER_RUNTIME_DOCKER_LOCAL_RESOURCE_MOUNTS}} has been widely used outside of yarn native services, but I don't know for certain. /cc [~billie.rinaldi]

> Allow user provided Docker volume mount list
> --------------------------------------------
>
>                 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
>
>
> YARN-6623 added support in container-executor for admin supplied Docker volume whitelists. This allows controlling which host directories can be mounted into Docker containers launched by YARN. A read-only and read-write whitelist was added. We now need the ability for users to supply the mounts they require for their application, which will be validated against the admin whitelist in container-executor.



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