Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/19717#discussion_r154771774
--- Diff:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/submit/steps/DriverKubernetesCredentialsStep.scala
---
@@ -0,0 +1,244 @@
+/*
+ * 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 java.io.File
+import java.nio.charset.StandardCharsets
+
+import scala.collection.JavaConverters._
+import scala.language.implicitConversions
+
+import com.google.common.io.{BaseEncoding, Files}
+import io.fabric8.kubernetes.api.model.{ContainerBuilder, PodBuilder,
Secret, SecretBuilder}
+
+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.KubernetesDriverSpec
+
+/**
+ * Mounts Kubernetes credentials into the driver pod. The driver will use
such mounted credentials
+ * to request executors.
+ */
+private[spark] class DriverKubernetesCredentialsStep(
+ submissionSparkConf: SparkConf,
+ kubernetesResourceNamePrefix: String) extends DriverConfigurationStep {
+
+ private val maybeMountedOAuthTokenFile = submissionSparkConf.getOption(
+
s"$KUBERNETES_AUTH_DRIVER_MOUNTED_CONF_PREFIX.$OAUTH_TOKEN_FILE_CONF_SUFFIX")
+ private val maybeMountedClientKeyFile = submissionSparkConf.getOption(
+
s"$KUBERNETES_AUTH_DRIVER_MOUNTED_CONF_PREFIX.$CLIENT_KEY_FILE_CONF_SUFFIX")
+ private val maybeMountedClientCertFile = submissionSparkConf.getOption(
+
s"$KUBERNETES_AUTH_DRIVER_MOUNTED_CONF_PREFIX.$CLIENT_CERT_FILE_CONF_SUFFIX")
+ private val maybeMountedCaCertFile = submissionSparkConf.getOption(
+
s"$KUBERNETES_AUTH_DRIVER_MOUNTED_CONF_PREFIX.$CA_CERT_FILE_CONF_SUFFIX")
+ private val driverServiceAccount =
submissionSparkConf.get(KUBERNETES_SERVICE_ACCOUNT_NAME)
+
+ override def configureDriver(driverSpec: KubernetesDriverSpec):
KubernetesDriverSpec = {
+ val driverSparkConf = driverSpec.driverSparkConf.clone()
+
+ val oauthTokenBase64 = submissionSparkConf
+
.getOption(s"$KUBERNETES_AUTH_DRIVER_CONF_PREFIX.$OAUTH_TOKEN_CONF_SUFFIX")
+ .map { token =>
+
BaseEncoding.base64().encode(token.getBytes(StandardCharsets.UTF_8))
+ }
+ val caCertDataBase64 = safeFileConfToBase64(
+ s"$KUBERNETES_AUTH_DRIVER_CONF_PREFIX.$CA_CERT_FILE_CONF_SUFFIX",
+ "Driver CA cert file provided at %s does not exist or is not a
file.")
+ val clientKeyDataBase64 = safeFileConfToBase64(
+
s"$KUBERNETES_AUTH_DRIVER_CONF_PREFIX.$CLIENT_KEY_FILE_CONF_SUFFIX",
+ "Driver client key file provided at %s does not exist or is not a
file.")
+ val clientCertDataBase64 = safeFileConfToBase64(
--- End diff --
Not really familiar with how these things are used by k8s, but don't these
certs generally have passwords? I can't seem to find anything related to
passwords for these things.
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