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https://issues.apache.org/jira/browse/SPARK-24905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-24905.
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Resolution: Incomplete
> Spark 2.3 Internal URL env variable
> -----------------------------------
>
> Key: SPARK-24905
> URL: https://issues.apache.org/jira/browse/SPARK-24905
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 2.3.1
> Reporter: Björn Wenzel
> Priority: Major
> Labels: bulk-closed
>
> Currently the Kubernetes Master internal URL is hardcoded in the
> Constants.scala file
> ([https://github.com/apache/spark/blob/85fe1297e35bcff9cf86bd53fee615e140ee5bfb/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/Constants.scala#L75)]
> In some cases these URL should be changed e.g. if the Certificate is valid
> for another Hostname.
> Is it possible to make this URL a property like:
> spark.kubernetes.authenticate.driver.hostname?
> Kubernetes The Hard Way maintained by Kelsey Hightower for example uses
> kubernetes.default as hostname, this will produce again a
> SSLPeerUnverifiedException.
>
> Here is the use of the Hardcoded Host:
> [https://github.com/apache/spark/blob/85fe1297e35bcff9cf86bd53fee615e140ee5bfb/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/KubernetesClusterManager.scala#L52]
> maybe this could be changed like the KUBERNETES_NAMESPACE property in Line
> 53.
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