Rename package to k8s (apache-spark-on-k8s#497)

* Rename package to k8s

* Rename string constants

Author: foxish

core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala

@@ -710,7 +710,7 @@ object SparkSubmit extends CommandLineUtils with Logging {
     }
 
     if (isKubernetesCluster) {
-      childMainClass = "org.apache.spark.deploy.kubernetes.submit.Client"
+      childMainClass = "org.apache.spark.deploy.k8s.submit.Client"
       if (args.isPython) {
         childArgs ++= Array("--primary-py-file", args.primaryResource)
         childArgs ++= Array("--main-class", "org.apache.spark.deploy.PythonRunner")

resource-managers/kubernetes/core/src/main/resources/META-INF/services/org.apache.spark.scheduler.ExternalClusterManager

@@ -1 +1 @@
-org.apache.spark.scheduler.cluster.kubernetes.KubernetesClusterManager
+org.apache.spark.scheduler.cluster.k8s.KubernetesClusterManager

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/CompressionUtils.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/CompressionUtils.scala

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 import java.io.{File, FileInputStream, FileOutputStream, InputStream, OutputStream}
 import java.util.zip.{GZIPInputStream, GZIPOutputStream}

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/ConfigurationUtils.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/ConfigurationUtils.scala

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 import org.apache.spark.{SparkConf, SparkException}
 import org.apache.spark.internal.Logging

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/InitContainerResourceStagingServerSecretPlugin.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/InitContainerResourceStagingServerSecretPlugin.scala

@@ -14,11 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 import io.fabric8.kubernetes.api.model.{Container, ContainerBuilder, Pod, PodBuilder, Secret}
 
-import org.apache.spark.deploy.kubernetes.constants._
+import org.apache.spark.deploy.k8s.constants._
 
 private[spark] trait InitContainerResourceStagingServerSecretPlugin {
 

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/KubernetesCredentials.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/KubernetesCredentials.scala

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 case class KubernetesCredentials(
   oauthTokenBase64: Option[String],

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/KubernetesExternalShuffleService.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/KubernetesExternalShuffleService.scala

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 import java.io.File
 import java.nio.ByteBuffer
@@ -29,8 +29,8 @@ import scala.collection.mutable
 
 import org.apache.spark.{SecurityManager, SparkConf}
 import org.apache.spark.deploy.ExternalShuffleService
-import org.apache.spark.deploy.kubernetes.config._
-import org.apache.spark.deploy.kubernetes.constants._
+import org.apache.spark.deploy.k8s.config._
+import org.apache.spark.deploy.k8s.constants._
 import org.apache.spark.internal.Logging
 import org.apache.spark.network.client.{RpcResponseCallback, TransportClient}
 import org.apache.spark.network.shuffle.ExternalShuffleBlockHandler

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/OptionRequirements.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/OptionRequirements.scala

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 private[spark] object OptionRequirements {
 

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/PodWithDetachedInitContainer.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/PodWithDetachedInitContainer.scala

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 import io.fabric8.kubernetes.api.model.{Container, Pod}
 

resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/kubernetes/SparkKubernetesClientFactory.scala renamed to resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/SparkKubernetesClientFactory.scala

@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.spark.deploy.kubernetes
+package org.apache.spark.deploy.k8s
 
 import java.io.File
 
@@ -25,7 +25,7 @@ import io.fabric8.kubernetes.client.utils.HttpClientUtils
 import okhttp3.Dispatcher
 
 import org.apache.spark.SparkConf
-import org.apache.spark.deploy.kubernetes.config._
+import org.apache.spark.deploy.k8s.config._
 import org.apache.spark.util.ThreadUtils
 
 /**