Qian Sun created SPARK-45175:
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Summary: download krb5.conf from remote storage in spark-sumbit on
k8s
Key: SPARK-45175
URL: https://issues.apache.org/jira/browse/SPARK-45175
Project: Spark
Issue Type: Improvement
Components: Kubernetes
Affects Versions: 3.4.1
Reporter: Qian Sun
krb5.conf currently only supports the local file format. Tenants would like to
save this file on their own servers and download it during the spark-submit
phase for better implementation of multi-tenant scenarios. The proposed
solution is to use the *downloadFile* function[1], similar to the
configuration of *spark.kubernetes.driver/executor.podTemplateFile*
[1]https://github.com/apache/spark/blob/822f58f0d26b7d760469151a65eaf9ee863a07a1/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/PodTemplateConfigMapStep.scala#L82C24-L82C24
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