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https://issues.apache.org/jira/browse/YARN-8783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16621225#comment-16621225
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Jason Lowe commented on YARN-8783:
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[~simonprewo] I added you to the YARN contributor list. Feel free to assign
this JIRA to yourself if you want to provide a patch.
> Improve the documentation for the docker.trusted.registries configuration
> -------------------------------------------------------------------------
>
> Key: YARN-8783
> URL: https://issues.apache.org/jira/browse/YARN-8783
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 3.1.1
> Reporter: Simon Prewo
> Priority: Major
> Labels: Docker, container-executor, docker
>
> I am deploying the default yarn distributed shell example:
> {code:java}
> yarn jar hadoop-yarn-applications-distributedshell.jar -shell_env
> YARN_CONTAINER_RUNTIME_TYPE=docker -shell_env
> YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=centos -shell_command "sleep 90" -jar
> hadoop-yarn-applications-distributedshell.jar -num_containers 1{code}
> Having a *single trusted registry configured like this works*:
> {code:java}
> docker.trusted.registries=centos{code}
> But having *a list of trusted registries configured fails* ("Shell error
> output: image: centos is not trusted."):
> {code:java}
> docker.trusted.registries=centos,ubuntu{code}
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