[SPARK-23146][WIP] Support client mode for Kubernetes in Out-Cluster mode #20451
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,40 @@ | ||
| /* | ||
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There was a problem hiding this comment. We have |
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| * 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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| private[spark] object OptionRequirements { | ||
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| def requireBothOrNeitherDefined( | ||
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There was a problem hiding this comment. not used, and if it were, perhaps would be clearer as (opt1, opt2) match {
case (Some(val1), None) =>
...
case (None, Some(val2)) =>
...
case _ => // ok
}There was a problem hiding this comment. This is part of unused code that could be fixed in other PR (e.g. #21462). Will double check after merging master, but normally, client-mode does not impact this. |
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| opt1: Option[_], | ||
| opt2: Option[_], | ||
| errMessageWhenFirstIsMissing: String, | ||
| errMessageWhenSecondIsMissing: String): Unit = { | ||
| requireSecondIfFirstIsDefined(opt1, opt2, errMessageWhenSecondIsMissing) | ||
| requireSecondIfFirstIsDefined(opt2, opt1, errMessageWhenFirstIsMissing) | ||
| } | ||
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| def requireSecondIfFirstIsDefined( | ||
| opt1: Option[_], opt2: Option[_], errMessageWhenSecondIsMissing: String): Unit = { | ||
| opt1.foreach { _ => | ||
| require(opt2.isDefined, errMessageWhenSecondIsMissing) | ||
| } | ||
| } | ||
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| def requireNandDefined(opt1: Option[_], opt2: Option[_], errMessage: String): Unit = { | ||
| opt1.foreach { _ => require(opt2.isEmpty, errMessage) } | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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@@ -20,7 +20,7 @@ import java.io.File | |
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| import com.google.common.base.Charsets | ||
| import com.google.common.io.Files | ||
| import io.fabric8.kubernetes.client.{Config => Fabric8Client, ConfigBuilder, DefaultKubernetesClient, KubernetesClient} | ||
| import io.fabric8.kubernetes.client.utils.HttpClientUtils | ||
| import okhttp3.Dispatcher | ||
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@@ -36,6 +36,21 @@ import org.apache.spark.util.ThreadUtils | |
| private[spark] object SparkKubernetesClientFactory { | ||
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| def createKubernetesClient( | ||
| master: String, | ||
| namespace: Option[String], | ||
| kubernetesAuthConfPrefix: String, | ||
| sparkConf: SparkConf, | ||
| maybeServiceAccountToken: Option[File], | ||
| maybeServiceAccountCaCert: Option[File]): KubernetesClient = { | ||
| new java.io.File(Fabric8Client.KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH).exists() match { | ||
| case true => createInClusterKubernetesClient(master, namespace, kubernetesAuthConfPrefix, | ||
| sparkConf, maybeServiceAccountToken, maybeServiceAccountCaCert) | ||
| case false => createOutClusterKubernetesClient(master, namespace, kubernetesAuthConfPrefix, | ||
| sparkConf, maybeServiceAccountToken, maybeServiceAccountCaCert) | ||
| } | ||
| } | ||
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| private def createInClusterKubernetesClient( | ||
| master: String, | ||
| namespace: Option[String], | ||
| kubernetesAuthConfPrefix: String, | ||
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@@ -88,6 +103,56 @@ private[spark] object SparkKubernetesClientFactory { | |
| new DefaultKubernetesClient(httpClientWithCustomDispatcher, config) | ||
| } | ||
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| def createOutClusterKubernetesClient( | ||
| master: String, | ||
| namespace: Option[String], | ||
| kubernetesAuthConfPrefix: String, | ||
| sparkConf: SparkConf, | ||
| maybeServiceAccountToken: Option[File], | ||
| maybeServiceAccountCaCert: Option[File]): KubernetesClient = { | ||
| val oauthTokenFileConf = s"$kubernetesAuthConfPrefix.$OAUTH_TOKEN_FILE_CONF_SUFFIX" | ||
| val oauthTokenConf = s"$kubernetesAuthConfPrefix.$OAUTH_TOKEN_CONF_SUFFIX" | ||
| val oauthTokenFile = sparkConf.getOption(oauthTokenFileConf) | ||
| .map(new File(_)) | ||
| .orElse(maybeServiceAccountToken) | ||
| val oauthTokenValue = sparkConf.getOption(oauthTokenConf) | ||
| OptionRequirements.requireNandDefined( | ||
|
There was a problem hiding this comment. Since it's only used once I'm not sure it warrents a separate file/method for checking Options. There was a problem hiding this comment. I did not introduce |
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| oauthTokenFile, | ||
| oauthTokenValue, | ||
| s"Cannot specify OAuth token through both a file $oauthTokenFileConf and a" + | ||
| s" value $oauthTokenConf.") | ||
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| val caCertFile = sparkConf | ||
| .getOption(s"$kubernetesAuthConfPrefix.$CA_CERT_FILE_CONF_SUFFIX") | ||
| .orElse(maybeServiceAccountCaCert.map(_.getAbsolutePath)) | ||
| val clientKeyFile = sparkConf | ||
| .getOption(s"$kubernetesAuthConfPrefix.$CLIENT_KEY_FILE_CONF_SUFFIX") | ||
| val clientCertFile = sparkConf | ||
| .getOption(s"$kubernetesAuthConfPrefix.$CLIENT_CERT_FILE_CONF_SUFFIX") | ||
| val dispatcher = new Dispatcher( | ||
| ThreadUtils.newDaemonCachedThreadPool("kubernetes-dispatcher")) | ||
| val config = new ConfigBuilder() | ||
| .withApiVersion("v1") | ||
| .withMasterUrl(master) | ||
| .withWebsocketPingInterval(0) | ||
| .withOption(oauthTokenValue) { | ||
| (token, configBuilder) => configBuilder.withOauthToken(token) | ||
| }.withOption(caCertFile) { | ||
| (file, configBuilder) => configBuilder.withCaCertFile(file) | ||
| }.withOption(clientKeyFile) { | ||
| (file, configBuilder) => configBuilder.withClientKeyFile(file) | ||
| }.withOption(clientCertFile) { | ||
| (file, configBuilder) => configBuilder.withClientCertFile(file) | ||
| }.withOption(namespace) { | ||
| (ns, configBuilder) => configBuilder.withNamespace(ns) | ||
| }.build() | ||
| val baseHttpClient = HttpClientUtils.createHttpClient(config) | ||
| val httpClientWithCustomDispatcher = baseHttpClient.newBuilder() | ||
| .dispatcher(dispatcher) | ||
| .build() | ||
| new DefaultKubernetesClient(httpClientWithCustomDispatcher, config) | ||
| } | ||
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| private implicit class OptionConfigurableConfigBuilder(val configBuilder: ConfigBuilder) | ||
| extends AnyVal { | ||
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APISERVER_AUTH_DRIVER_MOUNTED_CONF_PREFIXwas replaced byKUBERNETES_AUTH_DRIVER_MOUNTED_CONF_PREFIX. Please revert this addition.There was a problem hiding this comment.
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done