Github user mccheah commented on a diff in the pull request:
https://github.com/apache/spark/pull/22146#discussion_r211800176
--- 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
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.spark.deploy.k8s.features
+
+import io.fabric8.kubernetes.api.model.{Config => _, _}
+
+import org.apache.spark.deploy.k8s._
+
+private[spark] class TemplateVolumeStep(
+ conf: KubernetesConf[_ <: KubernetesRoleSpecificConf])
+ extends KubernetesFeatureConfigStep {
+ def configurePod(pod: SparkPod): SparkPod = {
+
require(conf.get(Config.KUBERNETES_EXECUTOR_PODTEMPLATE_FILE).isDefined)
+ val podTemplateFile =
conf.get(Config.KUBERNETES_EXECUTOR_PODTEMPLATE_FILE).get
+ val podWithVolume = new PodBuilder(pod.pod)
+ .editSpec()
+ .addNewVolume()
+ .withName(Constants.POD_TEMPLATE_VOLUME)
+ .withHostPath(new HostPathVolumeSource(podTemplateFile))
+ .endVolume()
+ .endSpec()
+ .build()
+
+ val containerWithVolume = new ContainerBuilder(pod.container)
+ .withVolumeMounts(new VolumeMountBuilder()
--- End diff --
`addNewVolumeMount()`
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