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KubernetesVolumeUtilsSuite.scala
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KubernetesVolumeUtilsSuite.scala
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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
import org.apache.spark.{SparkConf, SparkFunSuite}
class KubernetesVolumeUtilsSuite extends SparkFunSuite {
test("Parses hostPath volumes correctly") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.hostPath.volumeName.mount.path", "/path")
sparkConf.set("test.hostPath.volumeName.mount.readOnly", "true")
sparkConf.set("test.hostPath.volumeName.options.path", "/hostPath")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountReadOnly)
assert(volumeSpec.volumeConf.asInstanceOf[KubernetesHostPathVolumeConf] ===
KubernetesHostPathVolumeConf("/hostPath"))
}
test("Parses subPath correctly") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.emptyDir.volumeName.mount.path", "/path")
sparkConf.set("test.emptyDir.volumeName.mount.readOnly", "true")
sparkConf.set("test.emptyDir.volumeName.mount.subPath", "subPath")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountSubPath === "subPath")
}
test("Parses persistentVolumeClaim volumes correctly") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.persistentVolumeClaim.volumeName.mount.path", "/path")
sparkConf.set("test.persistentVolumeClaim.volumeName.mount.readOnly", "true")
sparkConf.set("test.persistentVolumeClaim.volumeName.options.claimName", "claimeName")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountReadOnly)
assert(volumeSpec.volumeConf.asInstanceOf[KubernetesPVCVolumeConf] ===
KubernetesPVCVolumeConf("claimeName"))
}
test("Parses emptyDir volumes correctly") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.emptyDir.volumeName.mount.path", "/path")
sparkConf.set("test.emptyDir.volumeName.mount.readOnly", "true")
sparkConf.set("test.emptyDir.volumeName.options.medium", "medium")
sparkConf.set("test.emptyDir.volumeName.options.sizeLimit", "5G")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountReadOnly)
assert(volumeSpec.volumeConf.asInstanceOf[KubernetesEmptyDirVolumeConf] ===
KubernetesEmptyDirVolumeConf(Some("medium"), Some("5G")))
}
test("Parses emptyDir volume options can be optional") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.emptyDir.volumeName.mount.path", "/path")
sparkConf.set("test.emptyDir.volumeName.mount.readOnly", "true")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountReadOnly)
assert(volumeSpec.volumeConf.asInstanceOf[KubernetesEmptyDirVolumeConf] ===
KubernetesEmptyDirVolumeConf(None, None))
}
test("Defaults optional readOnly to false") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.hostPath.volumeName.mount.path", "/path")
sparkConf.set("test.hostPath.volumeName.options.path", "/hostPath")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.mountReadOnly === false)
}
test("Fails on missing mount key") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.emptyDir.volumeName.mnt.path", "/path")
val e = intercept[NoSuchElementException] {
KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.")
}
assert(e.getMessage.contains("emptyDir.volumeName.mount.path"))
}
test("Fails on missing option key") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.hostPath.volumeName.mount.path", "/path")
sparkConf.set("test.hostPath.volumeName.mount.readOnly", "true")
sparkConf.set("test.hostPath.volumeName.options.pth", "/hostPath")
val e = intercept[NoSuchElementException] {
KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.")
}
assert(e.getMessage.contains("hostPath.volumeName.options.path"))
}
test("Parses read-only nfs volumes correctly") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.nfs.volumeName.mount.path", "/path")
sparkConf.set("test.nfs.volumeName.mount.readOnly", "true")
sparkConf.set("test.nfs.volumeName.options.path", "/share")
sparkConf.set("test.nfs.volumeName.options.server", "nfs.example.com")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountReadOnly === true)
assert(volumeSpec.volumeConf.asInstanceOf[KubernetesNFSVolumeConf] ===
KubernetesNFSVolumeConf("/share", "nfs.example.com"))
}
test("Parses read/write nfs volumes correctly") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.nfs.volumeName.mount.path", "/path")
sparkConf.set("test.nfs.volumeName.mount.readOnly", "false")
sparkConf.set("test.nfs.volumeName.options.path", "/share")
sparkConf.set("test.nfs.volumeName.options.server", "nfs.example.com")
val volumeSpec = KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.").head
assert(volumeSpec.volumeName === "volumeName")
assert(volumeSpec.mountPath === "/path")
assert(volumeSpec.mountReadOnly === false)
assert(volumeSpec.volumeConf.asInstanceOf[KubernetesNFSVolumeConf] ===
KubernetesNFSVolumeConf("/share", "nfs.example.com"))
}
test("Fails on missing path option") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.nfs.volumeName.mount.path", "/path")
sparkConf.set("test.nfs.volumeName.mount.readOnly", "true")
sparkConf.set("test.nfs.volumeName.options.server", "nfs.example.com")
val e = intercept[NoSuchElementException] {
KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.")
}
assert(e.getMessage.contains("nfs.volumeName.options.path"))
}
test("Fails on missing server option") {
val sparkConf = new SparkConf(false)
sparkConf.set("test.nfs.volumeName.mount.path", "/path")
sparkConf.set("test.nfs.volumeName.mount.readOnly", "true")
sparkConf.set("test.nfs.volumeName.options.path", "/share")
val e = intercept[NoSuchElementException] {
KubernetesVolumeUtils.parseVolumesWithPrefix(sparkConf, "test.")
}
assert(e.getMessage.contains("nfs.volumeName.options.server"))
}
}