[jira] [Commented] (YARN-3282) DockerContainerExecutor should support environment variables setting

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

    [ https://issues.apache.org/jira/browse/YARN-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341953#comment-14341953 ] 

Abin Shahab commented on YARN-3282:
-----------------------------------

[~guoleitao], Can you not include everything you need inside the docker image? That's the premise of the docker container executor. It assumes that the user will provide a docker image that is self-sufficient and is not dependent on the nodemanager for any files or directories.


> DockerContainerExecutor should support environment variables setting
> --------------------------------------------------------------------
>
>                 Key: YARN-3282
>                 URL: https://issues.apache.org/jira/browse/YARN-3282
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: applications, nodemanager
>    Affects Versions: 2.6.0
>            Reporter: Leitao Guo
>         Attachments: YARN-3282.01.patch
>
>
> Currently, DockerContainerExecutor will mount "yarn.nodemanager.local-dirs" and "yarn.nodemanager.log-dirs" to containers automatically. However applications maybe need set more environment variables before launching containers. 
> In our applications, just as the following command, we need to attach several directories and set some environment variables to docker containers. 
> {code}
> docker run -i -t -v /data/transcode:/data/tmp -v /etc/qcs:/etc/qcs -v /mnt:/mnt -e VTC_MQTYPE=rabbitmq -e VTC_APP=ugc -e VTC_LOCATION=sh -e VTC_RUNTIME=vtc sequenceiq/hadoop-docker:2.6.0 /bin/bash
> {code}



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