Github user liyinan926 commented on a diff in the pull request:
https://github.com/apache/spark/pull/20910#discussion_r177266854
--- Diff:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/KubernetesConf.scala
---
@@ -0,0 +1,158 @@
+/*
+ * 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
+
+import io.fabric8.kubernetes.api.model.Pod
+
+import org.apache.spark.SparkConf
+import org.apache.spark.deploy.k8s.Config._
+import org.apache.spark.deploy.k8s.Constants._
+import org.apache.spark.deploy.k8s.submit.{JavaMainAppResource,
MainAppResource}
+import org.apache.spark.internal.config.ConfigEntry
+
+private[spark] sealed trait KubernetesRoleSpecificConf
+
+private[spark] case class KubernetesDriverSpecificConf(
+ mainAppResource: Option[MainAppResource],
+ mainClass: String,
+ appName: String,
+ appArgs: Seq[String]) extends KubernetesRoleSpecificConf
+
+private[spark] case class KubernetesExecutorSpecificConf(
+ executorId: String, driverPod: Pod)
+ extends KubernetesRoleSpecificConf
+
+private[spark] class KubernetesConf[T <: KubernetesRoleSpecificConf](
+ val sparkConf: SparkConf,
+ val roleSpecificConf: T,
+ val appResourceNamePrefix: String,
+ val appId: String,
+ val roleLabels: Map[String, String],
+ val roleAnnotations: Map[String, String],
+ val roleSecretNamesToMountPaths: Map[String, String]) {
+
+ def namespace(): String = sparkConf.get(KUBERNETES_NAMESPACE)
+
+ def sparkJars(): Seq[String] = sparkConf
+ .getOption("spark.jars")
+ .map(str => str.split(",").toSeq)
+ .getOrElse(Seq.empty[String])
+
+ def sparkFiles(): Seq[String] = sparkConf
+ .getOption("spark.files")
+ .map(str => str.split(",").toSeq)
+ .getOrElse(Seq.empty[String])
+
+ def driverCustomEnvs(): Seq[(String, String)] =
+ sparkConf.getAllWithPrefix(KUBERNETES_DRIVER_ENV_KEY).toSeq
+
+ def imagePullPolicy(): String =
sparkConf.get(CONTAINER_IMAGE_PULL_POLICY)
+
+ def nodeSelector(): Map[String, String] =
+ KubernetesUtils.parsePrefixedKeyValuePairs(sparkConf,
KUBERNETES_NODE_SELECTOR_PREFIX)
+
+ def get[T](config: ConfigEntry[T]): T = sparkConf.get(config)
+
+ def get(conf: String, defaultValue: String): String =
sparkConf.get(conf, defaultValue)
+
+ def getOption(key: String): Option[String] = sparkConf.getOption(key)
+
+}
+
+private[spark] object KubernetesConf {
+ def createDriverConf(
+ sparkConf: SparkConf,
+ appName: String,
+ appResourceNamePrefix: String,
+ appId: String,
+ mainAppResource: Option[MainAppResource],
+ mainClass: String,
+ appArgs: Array[String]): KubernetesConf[KubernetesDriverSpecificConf]
= {
+ val sparkConfWithMainAppJar = sparkConf.clone()
+ mainAppResource.foreach {
+ case JavaMainAppResource(res) =>
+ val previousJars = sparkConf
+ .getOption("spark.jars")
+ .map(_.split(","))
+ .getOrElse(Array.empty)
+ if (!previousJars.contains(res)) {
+ sparkConfWithMainAppJar.setJars(previousJars ++ Seq(res))
+ }
+ }
+ val driverCustomLabels = KubernetesUtils.parsePrefixedKeyValuePairs(
--- End diff --
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