spark ExecutorKubernetesCredentialsFeatureStep 源码

2022-10-20
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spark ExecutorKubernetesCredentialsFeatureStep 代码

文件路径：/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/ExecutorKubernetesCredentialsFeatureStep.scala

/*
 * 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 org.apache.spark.deploy.k8s.{KubernetesConf, SparkPod}
import org.apache.spark.deploy.k8s.Config.{KUBERNETES_DRIVER_SERVICE_ACCOUNT_NAME, KUBERNETES_EXECUTOR_SERVICE_ACCOUNT_NAME}
import org.apache.spark.deploy.k8s.KubernetesUtils.buildPodWithServiceAccount

private[spark] class ExecutorKubernetesCredentialsFeatureStep(kubernetesConf: KubernetesConf)
  extends KubernetesFeatureConfigStep {

  private lazy val driverServiceAccount = kubernetesConf.get(KUBERNETES_DRIVER_SERVICE_ACCOUNT_NAME)
  private lazy val executorServiceAccount =
    kubernetesConf.get(KUBERNETES_EXECUTOR_SERVICE_ACCOUNT_NAME)

  override def configurePod(pod: SparkPod): SparkPod = {
      pod.copy(
        // if not setup by the pod template, fallback to the executor's sa,
        // if executor's sa is not setup, the last option is driver's sa.
        pod = if (Option(pod.pod.getSpec.getServiceAccount).isEmpty) {
          buildPodWithServiceAccount(executorServiceAccount
            .orElse(driverServiceAccount), pod).getOrElse(pod.pod)
        } else {
          pod.pod
        })
    }
}

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