[SPARK-22757][Kubernetes] Enable use of remote dependencies (http, s3, gcs, etc.) in Kubernetes mode #19954
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /* | ||
| * 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 | ||
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| import scala.collection.JavaConverters._ | ||
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| import io.fabric8.kubernetes.api.model.{ContainerBuilder, EmptyDirVolumeSource, EnvVarBuilder, PodBuilder, VolumeMount, VolumeMountBuilder} | ||
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| import org.apache.spark.{SparkConf, SparkException} | ||
| import org.apache.spark.deploy.k8s.Config._ | ||
| import org.apache.spark.deploy.k8s.Constants._ | ||
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| /** | ||
| * Bootstraps an init-container for downloading remote dependencies. This is separated out from | ||
| * the init-container steps API because this component can be used to bootstrap init-containers | ||
| * for both the driver and executors. | ||
| */ | ||
| private[spark] class InitContainerBootstrap( | ||
| initContainerImage: String, | ||
| imagePullPolicy: String, | ||
| jarsDownloadPath: String, | ||
| filesDownloadPath: String, | ||
| configMapName: String, | ||
| configMapKey: String, | ||
| sparkRole: String, | ||
| sparkConf: SparkConf) { | ||
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|
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| /** | ||
| * Bootstraps an init-container that downloads dependencies to be used by a main container. | ||
| */ | ||
| def bootstrapInitContainer( | ||
| original: PodWithDetachedInitContainer): PodWithDetachedInitContainer = { | ||
| val sharedVolumeMounts = Seq[VolumeMount]( | ||
| new VolumeMountBuilder() | ||
| .withName(INIT_CONTAINER_DOWNLOAD_JARS_VOLUME_NAME) | ||
| .withMountPath(jarsDownloadPath) | ||
| .build(), | ||
| new VolumeMountBuilder() | ||
| .withName(INIT_CONTAINER_DOWNLOAD_FILES_VOLUME_NAME) | ||
| .withMountPath(filesDownloadPath) | ||
| .build()) | ||
|
|
||
| val customEnvVarKeyPrefix = sparkRole match { | ||
| case SPARK_POD_DRIVER_ROLE => KUBERNETES_DRIVER_ENV_KEY | ||
| case SPARK_POD_EXECUTOR_ROLE => "spark.executorEnv." | ||
| case _ => throw new SparkException(s"$sparkRole is not a valid Spark pod role") | ||
| } | ||
| val customEnvVars = sparkConf.getAllWithPrefix(customEnvVarKeyPrefix).toSeq.map { | ||
| case (key, value) => | ||
| new EnvVarBuilder() | ||
| .withName(key) | ||
| .withValue(value) | ||
| .build() | ||
| } | ||
|
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| val initContainer = new ContainerBuilder(original.initContainer) | ||
| .withName("spark-init") | ||
| .withImage(initContainerImage) | ||
| .withImagePullPolicy(imagePullPolicy) | ||
| .addAllToEnv(customEnvVars.asJava) | ||
| .addNewVolumeMount() | ||
| .withName(INIT_CONTAINER_PROPERTIES_FILE_VOLUME) | ||
| .withMountPath(INIT_CONTAINER_PROPERTIES_FILE_DIR) | ||
| .endVolumeMount() | ||
| .addToVolumeMounts(sharedVolumeMounts: _*) | ||
| .addToArgs(INIT_CONTAINER_PROPERTIES_FILE_PATH) | ||
| .build() | ||
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| val podWithBasicVolumes = new PodBuilder(original.pod) | ||
| .editSpec() | ||
| .addNewVolume() | ||
| .withName(INIT_CONTAINER_PROPERTIES_FILE_VOLUME) | ||
| .withNewConfigMap() | ||
| .withName(configMapName) | ||
| .addNewItem() | ||
| .withKey(configMapKey) | ||
| .withPath(INIT_CONTAINER_PROPERTIES_FILE_NAME) | ||
| .endItem() | ||
| .endConfigMap() | ||
| .endVolume() | ||
| .addNewVolume() | ||
| .withName(INIT_CONTAINER_DOWNLOAD_JARS_VOLUME_NAME) | ||
| .withEmptyDir(new EmptyDirVolumeSource()) | ||
| .endVolume() | ||
| .addNewVolume() | ||
| .withName(INIT_CONTAINER_DOWNLOAD_FILES_VOLUME_NAME) | ||
| .withEmptyDir(new EmptyDirVolumeSource()) | ||
| .endVolume() | ||
| .endSpec() | ||
| .build() | ||
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| val mainContainer = new ContainerBuilder(original.mainContainer) | ||
| .addToVolumeMounts(sharedVolumeMounts: _*) | ||
| .addNewEnv() | ||
| .withName(ENV_MOUNTED_FILES_DIR) | ||
| .withValue(filesDownloadPath) | ||
| .endEnv() | ||
| .build() | ||
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| PodWithDetachedInitContainer( | ||
| podWithBasicVolumes, | ||
| initContainer, | ||
| mainContainer) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| * 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 | ||
|
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| import io.fabric8.kubernetes.api.model.{Container, ContainerBuilder, Pod, PodBuilder} | ||
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| /** | ||
| * Bootstraps a driver or executor container or an init-container with needed secrets mounted. | ||
| */ | ||
| private[spark] class MountSecretsBootstrap(secretNamesToMountPaths: Map[String, String]) { | ||
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| /** | ||
| * Mounts Kubernetes secrets as secret volumes into the given container in the given pod. | ||
| * | ||
| * @param pod the pod into which the secret volumes are being added. | ||
| * @param container the container into which the secret volumes are being mounted. | ||
| * @return the updated pod and container with the secrets mounted. | ||
| */ | ||
| def mountSecrets(pod: Pod, container: Container): (Pod, Container) = { | ||
| var podBuilder = new PodBuilder(pod) | ||
| secretNamesToMountPaths.keys.foreach { name => | ||
| podBuilder = podBuilder | ||
| .editOrNewSpec() | ||
| .addNewVolume() | ||
| .withName(secretVolumeName(name)) | ||
| .withNewSecret() | ||
| .withSecretName(name) | ||
| .endSecret() | ||
| .endVolume() | ||
| .endSpec() | ||
| } | ||
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| var containerBuilder = new ContainerBuilder(container) | ||
| secretNamesToMountPaths.foreach { case (name, path) => | ||
| containerBuilder = containerBuilder | ||
| .addNewVolumeMount() | ||
| .withName(secretVolumeName(name)) | ||
| .withMountPath(path) | ||
| .endVolumeMount() | ||
| } | ||
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| (podBuilder.build(), containerBuilder.build()) | ||
| } | ||
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| private def secretVolumeName(secretName: String): String = { | ||
| secretName + "-volume" | ||
| } | ||
| } | ||
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nit:
spark.kubernetes.initContainer.mountDependencies.timeout?There was a problem hiding this comment.
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Please see the response regarding
spark.kubernetes.mountDependencies.maxSimultaneousDownloads.