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https://issues.apache.org/jira/browse/YARN-11255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17607691#comment-17607691
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ASF GitHub Bot commented on YARN-11255:
---------------------------------------
PrabhuJoseph merged PR #4884:
URL: https://github.com/apache/hadoop/pull/4884
> Support loading alternative docker client config from system environment
> ------------------------------------------------------------------------
>
> Key: YARN-11255
> URL: https://issues.apache.org/jira/browse/YARN-11255
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Ashutosh Gupta
> Assignee: Ashutosh Gupta
> Priority: Major
> Labels: pull-request-available
>
> When using YARN docker support, although the hadoop shell supported
> {code:java}
> -docker_client_config{code}
> to pass the client config file that contains security token to generate the
> docker config for each job as a temporary file.
> For other applications that submit jobs to YARN, e.g. Spark, which loads the
> docker setting via system environment e.g.
> {code:java}
> spark.executorEnv.* {code}
> will not be able to add those authorization token because this system
> environment isn't considered in YARN.
> Add genetic solution to handle these kind of cases without making changes in
> spark code or others
> Eg
> When using remote container registry, the
> {{YARN_CONTAINER_RUNTIME_DOCKER_CLIENT_CONFIG}} must reference the config.json
> file containing the credentials used to authenticate.
> {code:java}
> DOCKER_IMAGE_NAME=hadoop-docker
> DOCKER_CLIENT_CONFIG=hdfs:///user/hadoop/config.json
> spark-submit --master yarn \
> --deploy-mode cluster \
> --conf spark.executorEnv.YARN_CONTAINER_RUNTIME_TYPE=docker \
> --conf
> spark.executorEnv.YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=$DOCKER_IMAGE_NAME \
> --conf
> spark.executorEnv.YARN_CONTAINER_RUNTIME_DOCKER_CLIENT_CONFIG=$DOCKER_CLIENT_CONFIG
> \
> --conf spark.yarn.appMasterEnv.YARN_CONTAINER_RUNTIME_TYPE=docker \
> --conf
> spark.yarn.appMasterEnv.YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=$DOCKER_IMAGE_NAME
> \
> --conf
> spark.yarn.appMasterEnv.YARN_CONTAINER_RUNTIME_DOCKER_CLIENT_CONFIG=$DOCKER_CLIENT_CONFIG
> \
> sparkR.R{code}
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