Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/19717#discussion_r154759371 --- Diff: resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/steps/BaseDriverConfigurationStep.scala --- @@ -0,0 +1,164 @@ +/* + * 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.submit.steps + +import scala.collection.JavaConverters._ + +import io.fabric8.kubernetes.api.model.{ContainerBuilder, EnvVarBuilder, EnvVarSourceBuilder, PodBuilder, QuantityBuilder} + +import org.apache.spark.{SparkConf, SparkException} +import org.apache.spark.deploy.k8s.Config._ +import org.apache.spark.deploy.k8s.ConfigurationUtils +import org.apache.spark.deploy.k8s.Constants._ +import org.apache.spark.deploy.k8s.submit.KubernetesDriverSpec + +/** + * Represents the initial setup required for the driver. + */ +private[spark] class BaseDriverConfigurationStep( + kubernetesAppId: String, + kubernetesResourceNamePrefix: String, + driverLabels: Map[String, String], + dockerImagePullPolicy: String, + appName: String, + mainClass: String, + appArgs: Array[String], + submissionSparkConf: SparkConf) extends DriverConfigurationStep { + + private val kubernetesDriverPodName = submissionSparkConf.get(KUBERNETES_DRIVER_POD_NAME) + .getOrElse(s"$kubernetesResourceNamePrefix-driver") + + private val driverExtraClasspath = submissionSparkConf.get( + org.apache.spark.internal.config.DRIVER_CLASS_PATH) + + private val driverDockerImage = submissionSparkConf + .get(DRIVER_DOCKER_IMAGE) + .getOrElse(throw new SparkException("Must specify the driver Docker image")) + + // CPU settings + private val driverCpuCores = submissionSparkConf.getOption("spark.driver.cores").getOrElse("1") --- End diff -- You could move the `DRIVER_CORES` config from the YARN module to core.
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