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https://issues.apache.org/jira/browse/SPARK-49731?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-49731.
-----------------------------------
Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 48181
[https://github.com/apache/spark/pull/48181]
> Support Kubernetes subPathExpr and hostPath volume type options
> ---------------------------------------------------------------
>
> Key: SPARK-49731
> URL: https://issues.apache.org/jira/browse/SPARK-49731
> Project: Spark
> Issue Type: New Feature
> Components: k8s, Kubernetes
> Affects Versions: 4.0.0
> Reporter: Enrico Minack
> Assignee: Enrico Minack
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> Spark on K8S supports mounting volumes to driver and executor pods. It
> supports the {{subPath}} but not the {{subPathExpr}} K8S option, which allows
> using environment variables for the {{subPath}}. Further, hostPath volumes
> are always mounted as default type {{""}}. Providing a different hostPath
> volume type allows for more flexibility.
> Add the following configuration options:
> -
> {{spark.kubernetes.executor.volumes.[VolumeType].[VolumeName].mount.subPathExpr}}
> - {{spark.kubernetes.executor.volumes.hostPath.[VolumeName].options.type}}
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