Github user mccheah commented on a diff in the pull request:
https://github.com/apache/spark/pull/22146#discussion_r211802430
--- Diff:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/TemplateVolumeStep.scala
---
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
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+ * The ASF licenses this file to You under the Apache License, Version 2.0
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+ *
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+package org.apache.spark.deploy.k8s.features
+
+import io.fabric8.kubernetes.api.model.{Config => _, _}
+
+import org.apache.spark.deploy.k8s._
+
+private[spark] class TemplateVolumeStep(
--- End diff --
So this pushes the pod spec yml from the spark-submit process's local disk
up to the driver pod. It may be worthwhile to support specifying the file as a
location in the driver pod that hasn't been mounted by spark-submit, but I
think doing it this way is fine for now.
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