SUBMARINE-54. Add test coverage for YarnServiceJobSubmitter and make it ready for extension for PyTorch. Contributed by Szilard Nemeth.

hadoop-submarine/hadoop-submarine-core/src/main/java/org/apache/hadoop/yarn/submarine/client/cli/param/RunJobParameters.java

@@ -293,10 +293,18 @@ public class RunJobParameters extends RunParameters {
     return psDockerImage;
   }
 
+  public void setPsDockerImage(String psDockerImage) {
+    this.psDockerImage = psDockerImage;
+  }
+
   public String getWorkerDockerImage() {
     return workerDockerImage;
   }
 
+  public void setWorkerDockerImage(String workerDockerImage) {
+    this.workerDockerImage = workerDockerImage;
+  }
+
   public boolean isDistributed() {
     return distributed;
   }
@@ -313,6 +321,10 @@ public class RunJobParameters extends RunParameters {
     return tensorboardDockerImage;
   }
 
+  public void setTensorboardDockerImage(String tensorboardDockerImage) {
+    this.tensorboardDockerImage = tensorboardDockerImage;
+  }
+
   public List<Quicklink> getQuicklinks() {
     return quicklinks;
   }
@@ -366,6 +378,10 @@ public class RunJobParameters extends RunParameters {
     return this;
   }
 
+  public void setDistributed(boolean distributed) {
+    this.distributed = distributed;
+  }
+
   @VisibleForTesting
   public static class UnderscoreConverterPropertyUtils extends PropertyUtils {
     @Override

hadoop-submarine/hadoop-submarine-core/src/test/java/org/apache/hadoop/yarn/submarine/client/cli/TestRunJobCliParsing.java

@@ -177,6 +177,25 @@ public class TestRunJobCliParsing {
     Assert.assertTrue(success);
   }
 
+  @Test
+  public void testJobWithoutName() throws Exception {
+    RunJobCli runJobCli = new RunJobCli(getMockClientContext());
+    String expectedErrorMessage =
+        "--" + CliConstants.NAME + " is absent";
+    String actualMessage = "";
+    try {
+      runJobCli.run(
+          new String[]{"--docker_image", "tf-docker:1.1.0",
+              "--num_workers", "0", "--tensorboard", "--verbose",
+              "--tensorboard_resources", "memory=2G,vcores=2",
+              "--tensorboard_docker_image", "tb_docker_image:001"});
+    } catch (ParseException e) {
+      actualMessage = e.getMessage();
+      e.printStackTrace();
+    }
+    assertEquals(expectedErrorMessage, actualMessage);
+  }
+
   @Test
   public void testLaunchCommandPatternReplace() throws Exception {
     RunJobCli runJobCli = new RunJobCli(getMockClientContext());

hadoop-submarine/hadoop-submarine-core/src/test/java/org/apache/hadoop/yarn/submarine/common/fs/MockRemoteDirectoryManager.java

@@ -26,6 +26,7 @@ import org.apache.hadoop.fs.Path;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Objects;
 
 public class MockRemoteDirectoryManager implements RemoteDirectoryManager {
   private File jobsParentDir = null;
@@ -35,6 +36,7 @@ public class MockRemoteDirectoryManager implements RemoteDirectoryManager {
   @Override
   public Path getJobStagingArea(String jobName, boolean create)
       throws IOException {
+    Objects.requireNonNull(jobName, "Job name must not be null!");
     if (jobsParentDir == null && create) {
       jobsParentDir = new File(
           "target/_staging_area_" + System.currentTimeMillis());

hadoop-submarine/hadoop-submarine-yarnservice-runtime/pom.xml

@@ -115,6 +115,12 @@
       <artifactId>hadoop-yarn-services-core</artifactId>
       <version>3.3.0-SNAPSHOT</version>
     </dependency>
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-yarn-common</artifactId>
+      <type>test-jar</type>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/AbstractComponent.java

@@ -0,0 +1,99 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.AbstractLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+
+import java.io.IOException;
+import java.util.Objects;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.getScriptFileName;
+
+/**
+ * Abstract base class for Component classes.
+ * The implementations of this class are act like factories for
+ * {@link Component} instances.
+ * All dependencies are passed to the constructor so that child classes
+ * are obliged to provide matching constructors.
+ */
+public abstract class AbstractComponent {
+  private final FileSystemOperations fsOperations;
+  protected final RunJobParameters parameters;
+  protected final TaskType taskType;
+  private final RemoteDirectoryManager remoteDirectoryManager;
+  protected final Configuration yarnConfig;
+  private final LaunchCommandFactory launchCommandFactory;
+
+  /**
+   * This is only required for testing.
+   */
+  private String localScriptFile;
+
+  public AbstractComponent(FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      RunJobParameters parameters, TaskType taskType,
+      Configuration yarnConfig,
+      LaunchCommandFactory launchCommandFactory) {
+    this.fsOperations = fsOperations;
+    this.remoteDirectoryManager = remoteDirectoryManager;
+    this.parameters = parameters;
+    this.taskType = taskType;
+    this.launchCommandFactory = launchCommandFactory;
+    this.yarnConfig = yarnConfig;
+  }
+
+  protected abstract Component createComponent() throws IOException;
+
+  /**
+   * Generates a command launch script on local disk,
+   * returns path to the script.
+   */
+  protected void generateLaunchCommand(Component component)
+      throws IOException {
+    AbstractLaunchCommand launchCommand =
+        launchCommandFactory.createLaunchCommand(taskType, component);
+    this.localScriptFile = launchCommand.generateLaunchScript();
+
+    String remoteLaunchCommand = uploadLaunchCommand(component);
+    component.setLaunchCommand(remoteLaunchCommand);
+  }
+
+  private String uploadLaunchCommand(Component component)
+      throws IOException {
+    Objects.requireNonNull(localScriptFile, "localScriptFile should be " +
+        "set before calling this method!");
+    Path stagingDir =
+        remoteDirectoryManager.getJobStagingArea(parameters.getName(), true);
+
+    String destScriptFileName = getScriptFileName(taskType);
+    fsOperations.uploadToRemoteFileAndLocalizeToContainerWorkDir(stagingDir,
+        localScriptFile, destScriptFileName, component);
+
+    return "./" + destScriptFileName;
+  }
+
+  String getLocalScriptFile() {
+    return localScriptFile;
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/FileSystemOperations.java

@@ -0,0 +1,201 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.FileUtil;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.ConfigFile;
+import org.apache.hadoop.yarn.submarine.common.ClientContext;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineConfiguration;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.utils.ZipUtilities;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Contains methods to perform file system operations. Almost all of the methods
+ * are regular non-static methods as the operations are performed with the help
+ * of a {@link RemoteDirectoryManager} instance passed in as a constructor
+ * dependency. Please note that some operations require to read config settings
+ * as well, so that we have Submarine and YARN config objects as dependencies as
+ * well.
+ */
+public class FileSystemOperations {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(FileSystemOperations.class);
+  private final Configuration submarineConfig;
+  private final Configuration yarnConfig;
+
+  private Set<Path> uploadedFiles = new HashSet<>();
+  private RemoteDirectoryManager remoteDirectoryManager;
+
+  public FileSystemOperations(ClientContext clientContext) {
+    this.remoteDirectoryManager = clientContext.getRemoteDirectoryManager();
+    this.submarineConfig = clientContext.getSubmarineConfig();
+    this.yarnConfig = clientContext.getYarnConfig();
+  }
+
+  /**
+   * May download a remote uri(file/dir) and zip.
+   * Skip download if local dir
+   * Remote uri can be a local dir(won't download)
+   * or remote HDFS dir, s3 dir/file .etc
+   * */
+  public String downloadAndZip(String remoteDir, String zipFileName,
+      boolean doZip)
+      throws IOException {
+    //Append original modification time and size to zip file name
+    String suffix;
+    String srcDir = remoteDir;
+    String zipDirPath =
+        System.getProperty("java.io.tmpdir") + "/" + zipFileName;
+    boolean needDeleteTempDir = false;
+    if (remoteDirectoryManager.isRemote(remoteDir)) {
+      //Append original modification time and size to zip file name
+      FileStatus status =
+          remoteDirectoryManager.getRemoteFileStatus(new Path(remoteDir));
+      suffix = "_" + status.getModificationTime()
+          + "-" + remoteDirectoryManager.getRemoteFileSize(remoteDir);
+      // Download them to temp dir
+      boolean downloaded =
+          remoteDirectoryManager.copyRemoteToLocal(remoteDir, zipDirPath);
+      if (!downloaded) {
+        throw new IOException("Failed to download files from "
+            + remoteDir);
+      }
+      LOG.info("Downloaded remote: {} to local: {}", remoteDir, zipDirPath);
+      srcDir = zipDirPath;
+      needDeleteTempDir = true;
+    } else {
+      File localDir = new File(remoteDir);
+      suffix = "_" + localDir.lastModified()
+          + "-" + localDir.length();
+    }
+    if (!doZip) {
+      return srcDir;
+    }
+    // zip a local dir
+    String zipFileUri =
+        ZipUtilities.zipDir(srcDir, zipDirPath + suffix + ".zip");
+    // delete downloaded temp dir
+    if (needDeleteTempDir) {
+      deleteFiles(srcDir);
+    }
+    return zipFileUri;
+  }
+
+  public void deleteFiles(String localUri) {
+    boolean success = FileUtil.fullyDelete(new File(localUri));
+    if (!success) {
+      LOG.warn("Failed to delete {}", localUri);
+    }
+    LOG.info("Deleted {}", localUri);
+  }
+
+  @VisibleForTesting
+  public void uploadToRemoteFileAndLocalizeToContainerWorkDir(Path stagingDir,
+      String fileToUpload, String destFilename, Component comp)
+      throws IOException {
+    Path uploadedFilePath = uploadToRemoteFile(stagingDir, fileToUpload);
+    locateRemoteFileToContainerWorkDir(destFilename, comp, uploadedFilePath);
+  }
+
+  private void locateRemoteFileToContainerWorkDir(String destFilename,
+      Component comp, Path uploadedFilePath)
+      throws IOException {
+    FileSystem fs = FileSystem.get(yarnConfig);
+
+    FileStatus fileStatus = fs.getFileStatus(uploadedFilePath);
+    LOG.info("Uploaded file path = " + fileStatus.getPath());
+
+    // Set it to component's files list
+    comp.getConfiguration().getFiles().add(new ConfigFile().srcFile(
+        fileStatus.getPath().toUri().toString()).destFile(destFilename)
+        .type(ConfigFile.TypeEnum.STATIC));
+  }
+
+  public Path uploadToRemoteFile(Path stagingDir, String fileToUpload) throws
+      IOException {
+    FileSystem fs = remoteDirectoryManager.getDefaultFileSystem();
+
+    // Upload to remote FS under staging area
+    File localFile = new File(fileToUpload);
+    if (!localFile.exists()) {
+      throw new FileNotFoundException(
+          "Trying to upload file=" + localFile.getAbsolutePath()
+              + " to remote, but couldn't find local file.");
+    }
+    String filename = new File(fileToUpload).getName();
+
+    Path uploadedFilePath = new Path(stagingDir, filename);
+    if (!uploadedFiles.contains(uploadedFilePath)) {
+      if (SubmarineLogs.isVerbose()) {
+        LOG.info("Copying local file=" + fileToUpload + " to remote="
+            + uploadedFilePath);
+      }
+      fs.copyFromLocalFile(new Path(fileToUpload), uploadedFilePath);
+      uploadedFiles.add(uploadedFilePath);
+    }
+    return uploadedFilePath;
+  }
+
+  public void validFileSize(String uri) throws IOException {
+    long actualSizeByte;
+    String locationType = "Local";
+    if (remoteDirectoryManager.isRemote(uri)) {
+      actualSizeByte = remoteDirectoryManager.getRemoteFileSize(uri);
+      locationType = "Remote";
+    } else {
+      actualSizeByte = FileUtil.getDU(new File(uri));
+    }
+    long maxFileSizeMB = submarineConfig
+        .getLong(SubmarineConfiguration.LOCALIZATION_MAX_ALLOWED_FILE_SIZE_MB,
+            SubmarineConfiguration.DEFAULT_MAX_ALLOWED_REMOTE_URI_SIZE_MB);
+    LOG.info("{} fie/dir: {}, size(Byte):{},"
+            + " Allowed max file/dir size: {}",
+        locationType, uri, actualSizeByte, maxFileSizeMB * 1024 * 1024);
+
+    if (actualSizeByte > maxFileSizeMB * 1024 * 1024) {
+      throw new IOException(uri + " size(Byte): "
+          + actualSizeByte + " exceeds configured max size:"
+          + maxFileSizeMB * 1024 * 1024);
+    }
+  }
+
+  public void setPermission(Path destPath, FsPermission permission) throws
+      IOException {
+    FileSystem fs = FileSystem.get(yarnConfig);
+    fs.setPermission(destPath, new FsPermission(permission));
+  }
+
+  public static boolean needHdfs(String content) {
+    return content != null && content.contains("hdfs://");
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/HadoopEnvironmentSetup.java

@@ -0,0 +1,161 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.ClientContext;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations.needHdfs;
+import static org.apache.hadoop.yarn.submarine.utils.ClassPathUtilities.findFileOnClassPath;
+import static org.apache.hadoop.yarn.submarine.utils.EnvironmentUtilities.getValueOfEnvironment;
+
+/**
+ * This class contains helper methods to fill HDFS and Java environment
+ * variables into scripts.
+ */
+public class HadoopEnvironmentSetup {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(HadoopEnvironmentSetup.class);
+  private static final String CORE_SITE_XML = "core-site.xml";
+  private static final String HDFS_SITE_XML = "hdfs-site.xml";
+
+  public static final String DOCKER_HADOOP_HDFS_HOME =
+      "DOCKER_HADOOP_HDFS_HOME";
+  public static final String DOCKER_JAVA_HOME = "DOCKER_JAVA_HOME";
+  private final RemoteDirectoryManager remoteDirectoryManager;
+  private final FileSystemOperations fsOperations;
+
+  public HadoopEnvironmentSetup(ClientContext clientContext,
+      FileSystemOperations fsOperations) {
+    this.remoteDirectoryManager = clientContext.getRemoteDirectoryManager();
+    this.fsOperations = fsOperations;
+  }
+
+  public void addHdfsClassPath(RunJobParameters parameters,
+      PrintWriter fw, Component comp) throws IOException {
+    // Find envs to use HDFS
+    String hdfsHome = null;
+    String javaHome = null;
+
+    boolean hadoopEnv = false;
+
+    for (String envVar : parameters.getEnvars()) {
+      if (envVar.startsWith(DOCKER_HADOOP_HDFS_HOME + "=")) {
+        hdfsHome = getValueOfEnvironment(envVar);
+        hadoopEnv = true;
+      } else if (envVar.startsWith(DOCKER_JAVA_HOME + "=")) {
+        javaHome = getValueOfEnvironment(envVar);
+      }
+    }
+
+    boolean hasHdfsEnvs = hdfsHome != null && javaHome != null;
+    boolean needHdfs = doesNeedHdfs(parameters, hadoopEnv);
+    if (needHdfs) {
+      // HDFS is asked either in input or output, set LD_LIBRARY_PATH
+      // and classpath
+      if (hdfsHome != null) {
+        appendHdfsHome(fw, hdfsHome);
+      }
+
+      // hadoop confs will be uploaded to HDFS and localized to container's
+      // local folder, so here set $HADOOP_CONF_DIR to $WORK_DIR.
+      fw.append("export HADOOP_CONF_DIR=$WORK_DIR\n");
+      if (javaHome != null) {
+        appendJavaHome(fw, javaHome);
+      }
+
+      fw.append(
+          "export CLASSPATH=`$HADOOP_HDFS_HOME/bin/hadoop classpath --glob`\n");
+    }
+
+    if (needHdfs && !hasHdfsEnvs) {
+      LOG.error("When HDFS is being used to read/write models/data, " +
+          "the following environment variables are required: " +
+          "1) {}=<HDFS_HOME inside docker container> " +
+          "2) {}=<JAVA_HOME inside docker container>. " +
+          "You can use --env to pass these environment variables.",
+          DOCKER_HADOOP_HDFS_HOME, DOCKER_JAVA_HOME);
+      throw new IOException("Failed to detect HDFS-related environments.");
+    }
+
+    // Trying to upload core-site.xml and hdfs-site.xml
+    Path stagingDir =
+        remoteDirectoryManager.getJobStagingArea(
+            parameters.getName(), true);
+    File coreSite = findFileOnClassPath(CORE_SITE_XML);
+    File hdfsSite = findFileOnClassPath(HDFS_SITE_XML);
+    if (coreSite == null || hdfsSite == null) {
+      LOG.error("HDFS is being used, however we could not locate " +
+          "{} nor {} on classpath! " +
+          "Please double check your classpath setting and make sure these " +
+          "setting files are included!", CORE_SITE_XML, HDFS_SITE_XML);
+      throw new IOException(
+          "Failed to locate core-site.xml / hdfs-site.xml on classpath!");
+    }
+    fsOperations.uploadToRemoteFileAndLocalizeToContainerWorkDir(stagingDir,
+        coreSite.getAbsolutePath(), CORE_SITE_XML, comp);
+    fsOperations.uploadToRemoteFileAndLocalizeToContainerWorkDir(stagingDir,
+        hdfsSite.getAbsolutePath(), HDFS_SITE_XML, comp);
+
+    // DEBUG
+    if (SubmarineLogs.isVerbose()) {
+      appendEchoOfEnvVars(fw);
+    }
+  }
+
+  private boolean doesNeedHdfs(RunJobParameters parameters, boolean hadoopEnv) {
+    return needHdfs(parameters.getInputPath()) ||
+        needHdfs(parameters.getPSLaunchCmd()) ||
+        needHdfs(parameters.getWorkerLaunchCmd()) ||
+        hadoopEnv;
+  }
+
+  private void appendHdfsHome(PrintWriter fw, String hdfsHome) {
+    // Unset HADOOP_HOME/HADOOP_YARN_HOME to make sure host machine's envs
+    // won't pollute docker's env.
+    fw.append("export HADOOP_HOME=\n");
+    fw.append("export HADOOP_YARN_HOME=\n");
+    fw.append("export HADOOP_HDFS_HOME=" + hdfsHome + "\n");
+    fw.append("export HADOOP_COMMON_HOME=" + hdfsHome + "\n");
+  }
+
+  private void appendJavaHome(PrintWriter fw, String javaHome) {
+    fw.append("export JAVA_HOME=" + javaHome + "\n");
+    fw.append("export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"
+        + "$JAVA_HOME/lib/amd64/server\n");
+  }
+
+  private void appendEchoOfEnvVars(PrintWriter fw) {
+    fw.append("echo \"CLASSPATH:$CLASSPATH\"\n");
+    fw.append("echo \"HADOOP_CONF_DIR:$HADOOP_CONF_DIR\"\n");
+    fw.append(
+        "echo \"HADOOP_TOKEN_FILE_LOCATION:$HADOOP_TOKEN_FILE_LOCATION\"\n");
+    fw.append("echo \"JAVA_HOME:$JAVA_HOME\"\n");
+    fw.append("echo \"LD_LIBRARY_PATH:$LD_LIBRARY_PATH\"\n");
+    fw.append("echo \"HADOOP_HDFS_HOME:$HADOOP_HDFS_HOME\"\n");
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/ServiceSpec.java

@@ -0,0 +1,27 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import java.io.IOException;
+
+/**
+ * This interface is to provide means of creating wrappers around
+ * {@link org.apache.hadoop.yarn.service.api.records.Service} instances.
+ */
+public interface ServiceSpec {
+  ServiceWrapper create() throws IOException;
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/ServiceSpecFileGenerator.java

@@ -0,0 +1,51 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import org.apache.hadoop.yarn.service.api.records.Service;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.io.Writer;
+import java.nio.charset.StandardCharsets;
+
+import static org.apache.hadoop.yarn.service.utils.ServiceApiUtil.jsonSerDeser;
+
+/**
+ * This class is merely responsible for creating Json representation of
+ * {@link Service} instances.
+ */
+public final class ServiceSpecFileGenerator {
+  private ServiceSpecFileGenerator() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  static String generateJson(Service service) throws IOException {
+    File serviceSpecFile = File.createTempFile(service.getName(), ".json");
+    String buffer = jsonSerDeser.toJson(service);
+    Writer w = new OutputStreamWriter(new FileOutputStream(serviceSpecFile),
+        StandardCharsets.UTF_8);
+    try (PrintWriter pw = new PrintWriter(w)) {
+      pw.append(buffer);
+    }
+    return serviceSpecFile.getAbsolutePath();
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/ServiceWrapper.java

@@ -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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.collect.Maps;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Service;
+
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * This class is only existing because we need a component name to
+ * local launch command mapping from the test code.
+ * Once this is solved in more clean or different way, we can delete this class.
+ */
+public class ServiceWrapper {
+  private final Service service;
+
+  @VisibleForTesting
+  private Map<String, String> componentToLocalLaunchCommand = Maps.newHashMap();
+
+  public ServiceWrapper(Service service) {
+    this.service = service;
+  }
+
+  public void addComponent(AbstractComponent abstractComponent)
+      throws IOException {
+    Component component = abstractComponent.createComponent();
+    service.addComponent(component);
+    storeComponentName(abstractComponent, component.getName());
+  }
+
+  private void storeComponentName(
+      AbstractComponent component, String name) {
+    componentToLocalLaunchCommand.put(name,
+        component.getLocalScriptFile());
+  }
+
+  public Service getService() {
+    return service;
+  }
+
+  public String getLocalLaunchCommandPathForComponent(String componentName) {
+    return componentToLocalLaunchCommand.get(componentName);
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/YarnServiceJobSubmitter.java

@@ -15,858 +15,59 @@
 package org.apache.hadoop.yarn.submarine.runtimes.yarnservice;
 
 import com.google.common.annotations.VisibleForTesting;
-import org.apache.commons.lang3.StringUtils;
-import org.apache.hadoop.fs.FileStatus;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.FileUtil;
-import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.client.api.AppAdminClient;
 import org.apache.hadoop.yarn.exceptions.YarnException;
-import org.apache.hadoop.yarn.service.api.ServiceApiConstants;
-import org.apache.hadoop.yarn.service.api.records.Artifact;
-import org.apache.hadoop.yarn.service.api.records.Component;
-import org.apache.hadoop.yarn.service.api.records.ConfigFile;
-import org.apache.hadoop.yarn.service.api.records.Resource;
-import org.apache.hadoop.yarn.service.api.records.ResourceInformation;
 import org.apache.hadoop.yarn.service.api.records.Service;
-import org.apache.hadoop.yarn.service.api.records.KerberosPrincipal;
 import org.apache.hadoop.yarn.service.utils.ServiceApiUtil;
-import org.apache.hadoop.yarn.submarine.client.cli.param.Localization;
-import org.apache.hadoop.yarn.submarine.client.cli.param.Quicklink;
 import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
 import org.apache.hadoop.yarn.submarine.common.ClientContext;
-import org.apache.hadoop.yarn.submarine.common.Envs;
-import org.apache.hadoop.yarn.submarine.common.api.TaskType;
-import org.apache.hadoop.yarn.submarine.common.conf.SubmarineConfiguration;
-import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
-import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
 import org.apache.hadoop.yarn.submarine.runtimes.common.JobSubmitter;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowServiceSpec;
+import org.apache.hadoop.yarn.submarine.utils.Localizer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.OutputStreamWriter;
-import java.io.PrintWriter;
-import java.io.Writer;
-import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.StringTokenizer;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipOutputStream;
 
-import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION;
-
-import static org.apache.hadoop.yarn.service.conf.YarnServiceConstants
-    .CONTAINER_STATE_REPORT_AS_SERVICE_STATE;
 import static org.apache.hadoop.yarn.service.exceptions.LauncherExitCodes.EXIT_SUCCESS;
-import static org.apache.hadoop.yarn.service.utils.ServiceApiUtil.jsonSerDeser;
 
 /**
- * Submit a job to cluster
+ * Submit a job to cluster.
  */
 public class YarnServiceJobSubmitter implements JobSubmitter {
-  public static final String TENSORBOARD_QUICKLINK_LABEL = "Tensorboard";
+
   private static final Logger LOG =
       LoggerFactory.getLogger(YarnServiceJobSubmitter.class);
-  ClientContext clientContext;
-  Service serviceSpec;
-  private Set<Path> uploadedFiles = new HashSet<>();
-
-  // Used by testing
-  private Map<String, String> componentToLocalLaunchScriptPath =
-      new HashMap<>();
+  private ClientContext clientContext;
+  private ServiceWrapper serviceWrapper;
 
-  public YarnServiceJobSubmitter(ClientContext clientContext) {
+  YarnServiceJobSubmitter(ClientContext clientContext) {
     this.clientContext = clientContext;
   }
 
-  private Resource getServiceResourceFromYarnResource(
-      org.apache.hadoop.yarn.api.records.Resource yarnResource) {
-    Resource serviceResource = new Resource();
-    serviceResource.setCpus(yarnResource.getVirtualCores());
-    serviceResource.setMemory(String.valueOf(yarnResource.getMemorySize()));
-
-    Map<String, ResourceInformation> riMap = new HashMap<>();
-    for (org.apache.hadoop.yarn.api.records.ResourceInformation ri : yarnResource
-        .getAllResourcesListCopy()) {
-      ResourceInformation serviceRi =
-          new ResourceInformation();
-      serviceRi.setValue(ri.getValue());
-      serviceRi.setUnit(ri.getUnits());
-      riMap.put(ri.getName(), serviceRi);
-    }
-    serviceResource.setResourceInformations(riMap);
-
-    return serviceResource;
-  }
-
-  private String getValueOfEnvironment(String envar) {
-    // extract value from "key=value" form
-    if (envar == null || !envar.contains("=")) {
-      return "";
-    } else {
-      return envar.substring(envar.indexOf("=") + 1);
-    }
-  }
-
-  private boolean needHdfs(String content) {
-    return content != null && content.contains("hdfs://");
-  }
-
-  private void addHdfsClassPathIfNeeded(RunJobParameters parameters,
-      PrintWriter fw, Component comp) throws IOException {
-    // Find envs to use HDFS
-    String hdfsHome = null;
-    String javaHome = null;
-
-    boolean hadoopEnv = false;
-
-    for (String envar : parameters.getEnvars()) {
-      if (envar.startsWith("DOCKER_HADOOP_HDFS_HOME=")) {
-        hdfsHome = getValueOfEnvironment(envar);
-        hadoopEnv = true;
-      } else if (envar.startsWith("DOCKER_JAVA_HOME=")) {
-        javaHome = getValueOfEnvironment(envar);
-      }
-    }
-
-    boolean lackingEnvs = false;
-
-    if (needHdfs(parameters.getInputPath()) || needHdfs(
-        parameters.getPSLaunchCmd()) || needHdfs(
-        parameters.getWorkerLaunchCmd()) || hadoopEnv) {
-      // HDFS is asked either in input or output, set LD_LIBRARY_PATH
-      // and classpath
-      if (hdfsHome != null) {
-        // Unset HADOOP_HOME/HADOOP_YARN_HOME to make sure host machine's envs
-        // won't pollute docker's env.
-        fw.append("export HADOOP_HOME=\n");
-        fw.append("export HADOOP_YARN_HOME=\n");
-        fw.append("export HADOOP_HDFS_HOME=" + hdfsHome + "\n");
-        fw.append("export HADOOP_COMMON_HOME=" + hdfsHome + "\n");
-      } else{
-        lackingEnvs = true;
-      }
-
-      // hadoop confs will be uploaded to HDFS and localized to container's
-      // local folder, so here set $HADOOP_CONF_DIR to $WORK_DIR.
-      fw.append("export HADOOP_CONF_DIR=$WORK_DIR\n");
-      if (javaHome != null) {
-        fw.append("export JAVA_HOME=" + javaHome + "\n");
-        fw.append("export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"
-            + "$JAVA_HOME/lib/amd64/server\n");
-      } else {
-        lackingEnvs = true;
-      }
-      fw.append("export CLASSPATH=`$HADOOP_HDFS_HOME/bin/hadoop classpath --glob`\n");
-    }
-
-    if (lackingEnvs) {
-      LOG.error("When hdfs is being used to read/write models/data. Following"
-          + "envs are required: 1) DOCKER_HADOOP_HDFS_HOME=<HDFS_HOME inside"
-          + "docker container> 2) DOCKER_JAVA_HOME=<JAVA_HOME inside docker"
-          + "container>. You can use --env to pass these envars.");
-      throw new IOException("Failed to detect HDFS-related environments.");
-    }
-
-    // Trying to upload core-site.xml and hdfs-site.xml
-    Path stagingDir =
-        clientContext.getRemoteDirectoryManager().getJobStagingArea(
-            parameters.getName(), true);
-    File coreSite = findFileOnClassPath("core-site.xml");
-    File hdfsSite = findFileOnClassPath("hdfs-site.xml");
-    if (coreSite == null || hdfsSite == null) {
-      LOG.error("hdfs is being used, however we couldn't locate core-site.xml/"
-          + "hdfs-site.xml from classpath, please double check you classpath"
-          + "setting and make sure they're included.");
-      throw new IOException(
-          "Failed to locate core-site.xml / hdfs-site.xml from class path");
-    }
-    uploadToRemoteFileAndLocalizeToContainerWorkDir(stagingDir,
-        coreSite.getAbsolutePath(), "core-site.xml", comp);
-    uploadToRemoteFileAndLocalizeToContainerWorkDir(stagingDir,
-        hdfsSite.getAbsolutePath(), "hdfs-site.xml", comp);
-
-    // DEBUG
-    if (SubmarineLogs.isVerbose()) {
-      fw.append("echo \"CLASSPATH:$CLASSPATH\"\n");
-      fw.append("echo \"HADOOP_CONF_DIR:$HADOOP_CONF_DIR\"\n");
-      fw.append("echo \"HADOOP_TOKEN_FILE_LOCATION:$HADOOP_TOKEN_FILE_LOCATION\"\n");
-      fw.append("echo \"JAVA_HOME:$JAVA_HOME\"\n");
-      fw.append("echo \"LD_LIBRARY_PATH:$LD_LIBRARY_PATH\"\n");
-      fw.append("echo \"HADOOP_HDFS_HOME:$HADOOP_HDFS_HOME\"\n");
-    }
-  }
-
-  private void addCommonEnvironments(Component component, TaskType taskType) {
-    Map<String, String> envs = component.getConfiguration().getEnv();
-    envs.put(Envs.TASK_INDEX_ENV, ServiceApiConstants.COMPONENT_ID);
-    envs.put(Envs.TASK_TYPE_ENV, taskType.name());
-  }
-
-  @VisibleForTesting
-  protected String getUserName() {
-    return System.getProperty("user.name");
-  }
-
-  private String getDNSDomain() {
-    return clientContext.getYarnConfig().get("hadoop.registry.dns.domain-name");
-  }
-
-  /*
-   * Generate a command launch script on local disk, returns patch to the script
-   */
-  private String generateCommandLaunchScript(RunJobParameters parameters,
-      TaskType taskType, Component comp) throws IOException {
-    File file = File.createTempFile(taskType.name() + "-launch-script", ".sh");
-    Writer w = new OutputStreamWriter(new FileOutputStream(file),
-        StandardCharsets.UTF_8);
-    PrintWriter pw = new PrintWriter(w);
-
-    try {
-      pw.append("#!/bin/bash\n");
-
-      addHdfsClassPathIfNeeded(parameters, pw, comp);
-
-      if (taskType.equals(TaskType.TENSORBOARD)) {
-        String tbCommand =
-            "export LC_ALL=C && tensorboard --logdir=" + parameters
-                .getCheckpointPath();
-        pw.append(tbCommand + "\n");
-        LOG.info("Tensorboard command=" + tbCommand);
-      } else{
-        // When distributed training is required
-        if (parameters.isDistributed()) {
-          // Generated TF_CONFIG
-          String tfConfigEnv = YarnServiceUtils.getTFConfigEnv(
-              taskType.getComponentName(), parameters.getNumWorkers(),
-              parameters.getNumPS(), parameters.getName(), getUserName(),
-              getDNSDomain());
-          pw.append("export TF_CONFIG=\"" + tfConfigEnv + "\"\n");
-        }
-
-        // Print launch command
-        if (taskType.equals(TaskType.WORKER) || taskType.equals(
-            TaskType.PRIMARY_WORKER)) {
-          pw.append(parameters.getWorkerLaunchCmd() + '\n');
-
-          if (SubmarineLogs.isVerbose()) {
-            LOG.info(
-                "Worker command =[" + parameters.getWorkerLaunchCmd() + "]");
-          }
-        } else if (taskType.equals(TaskType.PS)) {
-          pw.append(parameters.getPSLaunchCmd() + '\n');
-
-          if (SubmarineLogs.isVerbose()) {
-            LOG.info("PS command =[" + parameters.getPSLaunchCmd() + "]");
-          }
-        }
-      }
-    } finally {
-      pw.close();
-    }
-    return file.getAbsolutePath();
-  }
-
-  private String getScriptFileName(TaskType taskType) {
-    return "run-" + taskType.name() + ".sh";
-  }
-
-  private File findFileOnClassPath(final String fileName) {
-    final String classpath = System.getProperty("java.class.path");
-    final String pathSeparator = System.getProperty("path.separator");
-    final StringTokenizer tokenizer = new StringTokenizer(classpath,
-        pathSeparator);
-
-    while (tokenizer.hasMoreTokens()) {
-      final String pathElement = tokenizer.nextToken();
-      final File directoryOrJar = new File(pathElement);
-      final File absoluteDirectoryOrJar = directoryOrJar.getAbsoluteFile();
-      if (absoluteDirectoryOrJar.isFile()) {
-        final File target = new File(absoluteDirectoryOrJar.getParent(),
-            fileName);
-        if (target.exists()) {
-          return target;
-        }
-      } else{
-        final File target = new File(directoryOrJar, fileName);
-        if (target.exists()) {
-          return target;
-        }
-      }
-    }
-
-    return null;
-  }
-
-  private void uploadToRemoteFileAndLocalizeToContainerWorkDir(Path stagingDir,
-      String fileToUpload, String destFilename, Component comp)
-      throws IOException {
-    Path uploadedFilePath = uploadToRemoteFile(stagingDir, fileToUpload);
-    locateRemoteFileToContainerWorkDir(destFilename, comp, uploadedFilePath);
-  }
-
-  private void locateRemoteFileToContainerWorkDir(String destFilename,
-      Component comp, Path uploadedFilePath)
-      throws IOException {
-    FileSystem fs = FileSystem.get(clientContext.getYarnConfig());
-
-    FileStatus fileStatus = fs.getFileStatus(uploadedFilePath);
-    LOG.info("Uploaded file path = " + fileStatus.getPath());
-
-    // Set it to component's files list
-    comp.getConfiguration().getFiles().add(new ConfigFile().srcFile(
-        fileStatus.getPath().toUri().toString()).destFile(destFilename)
-        .type(ConfigFile.TypeEnum.STATIC));
-  }
-
-  private Path uploadToRemoteFile(Path stagingDir, String fileToUpload) throws
-      IOException {
-    FileSystem fs = clientContext.getRemoteDirectoryManager()
-        .getDefaultFileSystem();
-
-    // Upload to remote FS under staging area
-    File localFile = new File(fileToUpload);
-    if (!localFile.exists()) {
-      throw new FileNotFoundException(
-          "Trying to upload file=" + localFile.getAbsolutePath()
-              + " to remote, but couldn't find local file.");
-    }
-    String filename = new File(fileToUpload).getName();
-
-    Path uploadedFilePath = new Path(stagingDir, filename);
-    if (!uploadedFiles.contains(uploadedFilePath)) {
-      if (SubmarineLogs.isVerbose()) {
-        LOG.info("Copying local file=" + fileToUpload + " to remote="
-            + uploadedFilePath);
-      }
-      fs.copyFromLocalFile(new Path(fileToUpload), uploadedFilePath);
-      uploadedFiles.add(uploadedFilePath);
-    }
-    return uploadedFilePath;
-  }
-
-  private void setPermission(Path destPath, FsPermission permission) throws
-      IOException {
-    FileSystem fs = FileSystem.get(clientContext.getYarnConfig());
-    fs.setPermission(destPath, new FsPermission(permission));
-  }
-
-  private void handleLaunchCommand(RunJobParameters parameters,
-      TaskType taskType, Component component) throws IOException {
-    // Get staging area directory
-    Path stagingDir =
-        clientContext.getRemoteDirectoryManager().getJobStagingArea(
-            parameters.getName(), true);
-
-    // Generate script file in the local disk
-    String localScriptFile = generateCommandLaunchScript(parameters, taskType,
-        component);
-    String destScriptFileName = getScriptFileName(taskType);
-    uploadToRemoteFileAndLocalizeToContainerWorkDir(stagingDir, localScriptFile,
-        destScriptFileName, component);
-
-    component.setLaunchCommand("./" + destScriptFileName);
-    componentToLocalLaunchScriptPath.put(taskType.getComponentName(),
-        localScriptFile);
-  }
-
-  private String getLastNameFromPath(String srcFileStr) {
-    return new Path(srcFileStr).getName();
-  }
-
-  /**
-   * May download a remote uri(file/dir) and zip.
-   * Skip download if local dir
-   * Remote uri can be a local dir(won't download)
-   * or remote HDFS dir, s3 dir/file .etc
-   * */
-  private String mayDownloadAndZipIt(String remoteDir, String zipFileName,
-      boolean doZip)
-      throws IOException {
-    RemoteDirectoryManager rdm = clientContext.getRemoteDirectoryManager();
-    //Append original modification time and size to zip file name
-    String suffix;
-    String srcDir = remoteDir;
-    String zipDirPath =
-        System.getProperty("java.io.tmpdir") + "/" + zipFileName;
-    boolean needDeleteTempDir = false;
-    if (rdm.isRemote(remoteDir)) {
-      //Append original modification time and size to zip file name
-      FileStatus status = rdm.getRemoteFileStatus(new Path(remoteDir));
-      suffix = "_" + status.getModificationTime()
-          + "-" + rdm.getRemoteFileSize(remoteDir);
-      // Download them to temp dir
-      boolean downloaded = rdm.copyRemoteToLocal(remoteDir, zipDirPath);
-      if (!downloaded) {
-        throw new IOException("Failed to download files from "
-            + remoteDir);
-      }
-      LOG.info("Downloaded remote: {} to local: {}", remoteDir, zipDirPath);
-      srcDir = zipDirPath;
-      needDeleteTempDir = true;
-    } else {
-      File localDir = new File(remoteDir);
-      suffix = "_" + localDir.lastModified()
-          + "-" + localDir.length();
-    }
-    if (!doZip) {
-      return srcDir;
-    }
-    // zip a local dir
-    String zipFileUri = zipDir(srcDir, zipDirPath + suffix + ".zip");
-    // delete downloaded temp dir
-    if (needDeleteTempDir) {
-      deleteFiles(srcDir);
-    }
-    return zipFileUri;
-  }
-
-  @VisibleForTesting
-  public String zipDir(String srcDir, String dstFile) throws IOException {
-    FileOutputStream fos = new FileOutputStream(dstFile);
-    ZipOutputStream zos = new ZipOutputStream(fos);
-    File srcFile = new File(srcDir);
-    LOG.info("Compressing {}", srcDir);
-    addDirToZip(zos, srcFile, srcFile);
-    // close the ZipOutputStream
-    zos.close();
-    LOG.info("Compressed {} to {}", srcDir, dstFile);
-    return dstFile;
-  }
-
-  private void deleteFiles(String localUri) {
-    boolean success = FileUtil.fullyDelete(new File(localUri));
-    if (!success) {
-      LOG.warn("Fail to delete {}", localUri);
-    }
-    LOG.info("Deleted {}", localUri);
-  }
-
-  private void addDirToZip(ZipOutputStream zos, File srcFile, File base)
-      throws IOException {
-    File[] files = srcFile.listFiles();
-    if (null == files) {
-      return;
-    }
-    FileInputStream fis = null;
-    for (int i = 0; i < files.length; i++) {
-      // if it's directory, add recursively
-      if (files[i].isDirectory()) {
-        addDirToZip(zos, files[i], base);
-        continue;
-      }
-      byte[] buffer = new byte[1024];
-      try {
-        fis = new FileInputStream(files[i]);
-        String name =  base.toURI().relativize(files[i].toURI()).getPath();
-        LOG.info(" Zip adding: " + name);
-        zos.putNextEntry(new ZipEntry(name));
-        int length;
-        while ((length = fis.read(buffer)) > 0) {
-          zos.write(buffer, 0, length);
-        }
-        zos.flush();
-      } finally {
-        if (fis != null) {
-          fis.close();
-        }
-        zos.closeEntry();
-      }
-    }
-  }
-
-  private void addWorkerComponent(Service service,
-      RunJobParameters parameters, TaskType taskType) throws IOException {
-    Component workerComponent = new Component();
-    addCommonEnvironments(workerComponent, taskType);
-
-    workerComponent.setName(taskType.getComponentName());
-
-    if (taskType.equals(TaskType.PRIMARY_WORKER)) {
-      workerComponent.setNumberOfContainers(1L);
-      workerComponent.getConfiguration().setProperty(
-          CONTAINER_STATE_REPORT_AS_SERVICE_STATE, "true");
-    } else{
-      workerComponent.setNumberOfContainers(
-          (long) parameters.getNumWorkers() - 1);
-    }
-
-    if (parameters.getWorkerDockerImage() != null) {
-      workerComponent.setArtifact(
-          getDockerArtifact(parameters.getWorkerDockerImage()));
-    }
-
-    workerComponent.setResource(
-        getServiceResourceFromYarnResource(parameters.getWorkerResource()));
-    handleLaunchCommand(parameters, taskType, workerComponent);
-    workerComponent.setRestartPolicy(Component.RestartPolicyEnum.NEVER);
-    service.addComponent(workerComponent);
-  }
-
-  // Handle worker and primary_worker.
-  private void addWorkerComponents(Service service, RunJobParameters parameters)
-      throws IOException {
-    addWorkerComponent(service, parameters, TaskType.PRIMARY_WORKER);
-
-    if (parameters.getNumWorkers() > 1) {
-      addWorkerComponent(service, parameters, TaskType.WORKER);
-    }
-  }
-
-  private void appendToEnv(Service service, String key, String value,
-      String delim) {
-    Map<String, String> env = service.getConfiguration().getEnv();
-    if (!env.containsKey(key)) {
-      env.put(key, value);
-    } else {
-      if (!value.isEmpty()) {
-        String existingValue = env.get(key);
-        if (!existingValue.endsWith(delim)) {
-          env.put(key, existingValue + delim + value);
-        } else {
-          env.put(key, existingValue + value);
-        }
-      }
-    }
-  }
-
-  private void handleServiceEnvs(Service service, RunJobParameters parameters) {
-    if (parameters.getEnvars() != null) {
-      for (String envarPair : parameters.getEnvars()) {
-        String key, value;
-        if (envarPair.contains("=")) {
-          int idx = envarPair.indexOf('=');
-          key = envarPair.substring(0, idx);
-          value = envarPair.substring(idx + 1);
-        } else{
-          // No "=" found so use the whole key
-          key = envarPair;
-          value = "";
-        }
-        appendToEnv(service, key, value, ":");
-      }
-    }
-
-    // Append other configs like /etc/passwd, /etc/krb5.conf
-    appendToEnv(service, "YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS",
-        "/etc/passwd:/etc/passwd:ro", ",");
-
-    String authenication = clientContext.getYarnConfig().get(
-        HADOOP_SECURITY_AUTHENTICATION);
-    if (authenication != null && authenication.equals("kerberos")) {
-      appendToEnv(service, "YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS",
-          "/etc/krb5.conf:/etc/krb5.conf:ro", ",");
-    }
-  }
-
-  private Artifact getDockerArtifact(String dockerImageName) {
-    return new Artifact().type(Artifact.TypeEnum.DOCKER).id(dockerImageName);
-  }
-
-  private void handleQuicklinks(RunJobParameters runJobParameters)
-      throws IOException {
-    List<Quicklink> quicklinks = runJobParameters.getQuicklinks();
-    if (null != quicklinks && !quicklinks.isEmpty()) {
-      for (Quicklink ql : quicklinks) {
-        // Make sure it is a valid instance name
-        String instanceName = ql.getComponentInstanceName();
-        boolean found = false;
-
-        for (Component comp : serviceSpec.getComponents()) {
-          for (int i = 0; i < comp.getNumberOfContainers(); i++) {
-            String possibleInstanceName = comp.getName() + "-" + i;
-            if (possibleInstanceName.equals(instanceName)) {
-              found = true;
-              break;
-            }
-          }
-        }
-
-        if (!found) {
-          throw new IOException(
-              "Couldn't find a component instance = " + instanceName
-                  + " while adding quicklink");
-        }
-
-        String link = ql.getProtocol() + YarnServiceUtils.getDNSName(
-            serviceSpec.getName(), instanceName, getUserName(), getDNSDomain(),
-            ql.getPort());
-        YarnServiceUtils.addQuicklink(serviceSpec, ql.getLabel(), link);
-      }
-    }
-  }
-
-  private Service createServiceByParameters(RunJobParameters parameters)
-      throws IOException {
-    componentToLocalLaunchScriptPath.clear();
-    serviceSpec = new Service();
-    serviceSpec.setName(parameters.getName());
-    serviceSpec.setVersion(String.valueOf(System.currentTimeMillis()));
-    serviceSpec.setArtifact(getDockerArtifact(parameters.getDockerImageName()));
-    handleKerberosPrincipal(parameters);
-
-    handleServiceEnvs(serviceSpec, parameters);
-
-    handleLocalizations(parameters);
-
-    if (parameters.getNumWorkers() > 0) {
-      addWorkerComponents(serviceSpec, parameters);
-    }
-
-    if (parameters.getNumPS() > 0) {
-      Component psComponent = new Component();
-      psComponent.setName(TaskType.PS.getComponentName());
-      addCommonEnvironments(psComponent, TaskType.PS);
-      psComponent.setNumberOfContainers((long) parameters.getNumPS());
-      psComponent.setRestartPolicy(Component.RestartPolicyEnum.NEVER);
-      psComponent.setResource(
-          getServiceResourceFromYarnResource(parameters.getPsResource()));
-
-      // Override global docker image if needed.
-      if (parameters.getPsDockerImage() != null) {
-        psComponent.setArtifact(
-            getDockerArtifact(parameters.getPsDockerImage()));
-      }
-      handleLaunchCommand(parameters, TaskType.PS, psComponent);
-      serviceSpec.addComponent(psComponent);
-    }
-
-    if (parameters.isTensorboardEnabled()) {
-      Component tbComponent = new Component();
-      tbComponent.setName(TaskType.TENSORBOARD.getComponentName());
-      addCommonEnvironments(tbComponent, TaskType.TENSORBOARD);
-      tbComponent.setNumberOfContainers(1L);
-      tbComponent.setRestartPolicy(Component.RestartPolicyEnum.NEVER);
-      tbComponent.setResource(getServiceResourceFromYarnResource(
-          parameters.getTensorboardResource()));
-      if (parameters.getTensorboardDockerImage() != null) {
-        tbComponent.setArtifact(
-            getDockerArtifact(parameters.getTensorboardDockerImage()));
-      }
-
-      handleLaunchCommand(parameters, TaskType.TENSORBOARD, tbComponent);
-
-      // Add tensorboard to quicklink
-      String tensorboardLink = "http://" + YarnServiceUtils.getDNSName(
-          parameters.getName(),
-          TaskType.TENSORBOARD.getComponentName() + "-" + 0, getUserName(),
-          getDNSDomain(), 6006);
-      LOG.info("Link to tensorboard:" + tensorboardLink);
-      serviceSpec.addComponent(tbComponent);
-
-      YarnServiceUtils.addQuicklink(serviceSpec, TENSORBOARD_QUICKLINK_LABEL,
-          tensorboardLink);
-    }
-
-    // After all components added, handle quicklinks
-    handleQuicklinks(parameters);
-
-    return serviceSpec;
-  }
-
-  /**
-   * Localize dependencies for all containers.
-   * If remoteUri is a local directory,
-   * we'll zip it, upload to HDFS staging dir HDFS.
-   * If remoteUri is directory, we'll download it, zip it and upload
-   * to HDFS.
-   * If localFilePath is ".", we'll use remoteUri's file/dir name
-   * */
-  private void handleLocalizations(RunJobParameters parameters)
-      throws IOException {
-    // Handle localizations
-    Path stagingDir =
-        clientContext.getRemoteDirectoryManager().getJobStagingArea(
-            parameters.getName(), true);
-    List<Localization> locs = parameters.getLocalizations();
-    String remoteUri;
-    String containerLocalPath;
-    RemoteDirectoryManager rdm = clientContext.getRemoteDirectoryManager();
-
-    // Check to fail fast
-    for (Localization loc : locs) {
-      remoteUri = loc.getRemoteUri();
-      Path resourceToLocalize = new Path(remoteUri);
-      // Check if remoteUri exists
-      if (rdm.isRemote(remoteUri)) {
-        // check if exists
-        if (!rdm.existsRemoteFile(resourceToLocalize)) {
-          throw new FileNotFoundException(
-              "File " + remoteUri + " doesn't exists.");
-        }
-      } else {
-        // Check if exists
-        File localFile = new File(remoteUri);
-        if (!localFile.exists()) {
-          throw new FileNotFoundException(
-              "File " + remoteUri + " doesn't exists.");
-        }
-      }
-      // check remote file size
-      validFileSize(remoteUri);
-    }
-    // Start download remote if needed and upload to HDFS
-    for (Localization loc : locs) {
-      remoteUri = loc.getRemoteUri();
-      containerLocalPath = loc.getLocalPath();
-      String srcFileStr = remoteUri;
-      ConfigFile.TypeEnum destFileType = ConfigFile.TypeEnum.STATIC;
-      Path resourceToLocalize = new Path(remoteUri);
-      boolean needUploadToHDFS = true;
-
-      /**
-       * Special handling for remoteUri directory.
-       * */
-      boolean needDeleteTempFile = false;
-      if (rdm.isDir(remoteUri)) {
-        destFileType = ConfigFile.TypeEnum.ARCHIVE;
-        srcFileStr = mayDownloadAndZipIt(
-            remoteUri, getLastNameFromPath(srcFileStr), true);
-      } else if (rdm.isRemote(remoteUri)) {
-        if (!needHdfs(remoteUri)) {
-          // Non HDFS remote uri. Non directory, no need to zip
-          srcFileStr = mayDownloadAndZipIt(
-              remoteUri, getLastNameFromPath(srcFileStr), false);
-          needDeleteTempFile = true;
-        } else {
-          // HDFS file, no need to upload
-          needUploadToHDFS = false;
-        }
-      }
-
-      // Upload file to HDFS
-      if (needUploadToHDFS) {
-        resourceToLocalize = uploadToRemoteFile(stagingDir, srcFileStr);
-      }
-      if (needDeleteTempFile) {
-        deleteFiles(srcFileStr);
-      }
-      // Remove .zip from zipped dir name
-      if (destFileType == ConfigFile.TypeEnum.ARCHIVE
-          && srcFileStr.endsWith(".zip")) {
-        // Delete local zip file
-        deleteFiles(srcFileStr);
-        int suffixIndex = srcFileStr.lastIndexOf('_');
-        srcFileStr = srcFileStr.substring(0, suffixIndex);
-      }
-      // If provided, use the name of local uri
-      if (!containerLocalPath.equals(".")
-          && !containerLocalPath.equals("./")) {
-        // Change the YARN localized file name to what'll used in container
-        srcFileStr = getLastNameFromPath(containerLocalPath);
-      }
-      String localizedName = getLastNameFromPath(srcFileStr);
-      LOG.info("The file/dir to be localized is {}",
-          resourceToLocalize.toString());
-      LOG.info("Its localized file name will be {}", localizedName);
-      serviceSpec.getConfiguration().getFiles().add(new ConfigFile().srcFile(
-          resourceToLocalize.toUri().toString()).destFile(localizedName)
-          .type(destFileType));
-      // set mounts
-      // if mount path is absolute, just use it.
-      // if relative, no need to mount explicitly
-      if (containerLocalPath.startsWith("/")) {
-        String mountStr = getLastNameFromPath(srcFileStr) + ":"
-            + containerLocalPath + ":" + loc.getMountPermission();
-        LOG.info("Add bind-mount string {}", mountStr);
-        appendToEnv(serviceSpec, "YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS",
-            mountStr, ",");
-      }
-    }
-  }
-
-  private void validFileSize(String uri) throws IOException {
-    RemoteDirectoryManager rdm = clientContext.getRemoteDirectoryManager();
-    long actualSizeByte;
-    String locationType = "Local";
-    if (rdm.isRemote(uri)) {
-      actualSizeByte = clientContext.getRemoteDirectoryManager()
-          .getRemoteFileSize(uri);
-      locationType = "Remote";
-    } else {
-      actualSizeByte = FileUtil.getDU(new File(uri));
-    }
-    long maxFileSizeMB = clientContext.getSubmarineConfig()
-        .getLong(SubmarineConfiguration.LOCALIZATION_MAX_ALLOWED_FILE_SIZE_MB,
-            SubmarineConfiguration.DEFAULT_MAX_ALLOWED_REMOTE_URI_SIZE_MB);
-    LOG.info("{} fie/dir: {}, size(Byte):{},"
-        + " Allowed max file/dir size: {}",
-        locationType, uri, actualSizeByte, maxFileSizeMB * 1024 * 1024);
-
-    if (actualSizeByte > maxFileSizeMB * 1024 * 1024) {
-      throw new IOException(uri + " size(Byte): "
-          + actualSizeByte + " exceeds configured max size:"
-          + maxFileSizeMB * 1024 * 1024);
-    }
-  }
-
-  private String generateServiceSpecFile(Service service) throws IOException {
-    File serviceSpecFile = File.createTempFile(service.getName(), ".json");
-    String buffer = jsonSerDeser.toJson(service);
-    Writer w = new OutputStreamWriter(new FileOutputStream(serviceSpecFile),
-        "UTF-8");
-    PrintWriter pw = new PrintWriter(w);
-    try {
-      pw.append(buffer);
-    } finally {
-      pw.close();
-    }
-    return serviceSpecFile.getAbsolutePath();
-  }
-
-  private void handleKerberosPrincipal(RunJobParameters parameters) throws
-      IOException {
-    if(StringUtils.isNotBlank(parameters.getKeytab()) && StringUtils
-        .isNotBlank(parameters.getPrincipal())) {
-      String keytab = parameters.getKeytab();
-      String principal = parameters.getPrincipal();
-      if(parameters.isDistributeKeytab()) {
-        Path stagingDir =
-            clientContext.getRemoteDirectoryManager().getJobStagingArea(
-                parameters.getName(), true);
-        Path remoteKeytabPath = uploadToRemoteFile(stagingDir, keytab);
-        //only the owner has read access
-        setPermission(remoteKeytabPath,
-            FsPermission.createImmutable((short)Integer.parseInt("400", 8)));
-        serviceSpec.setKerberosPrincipal(new KerberosPrincipal().keytab(
-            remoteKeytabPath.toString()).principalName(principal));
-      } else {
-        if(!keytab.startsWith("file")) {
-          keytab = "file://" + keytab;
-        }
-        serviceSpec.setKerberosPrincipal(new KerberosPrincipal().keytab(
-            keytab).principalName(principal));
-      }
-    }
-  }
-
   /**
    * {@inheritDoc}
    */
   @Override
   public ApplicationId submitJob(RunJobParameters parameters)
       throws IOException, YarnException {
-    createServiceByParameters(parameters);
-    String serviceSpecFile = generateServiceSpecFile(serviceSpec);
+    FileSystemOperations fsOperations = new FileSystemOperations(clientContext);
+    HadoopEnvironmentSetup hadoopEnvSetup =
+        new HadoopEnvironmentSetup(clientContext, fsOperations);
 
-    AppAdminClient appAdminClient = YarnServiceUtils.createServiceClient(
-        clientContext.getYarnConfig());
+    Service serviceSpec = createTensorFlowServiceSpec(parameters,
+        fsOperations, hadoopEnvSetup);
+    String serviceSpecFile = ServiceSpecFileGenerator.generateJson(serviceSpec);
+
+    AppAdminClient appAdminClient =
+        YarnServiceUtils.createServiceClient(clientContext.getYarnConfig());
     int code = appAdminClient.actionLaunch(serviceSpecFile,
         serviceSpec.getName(), null, null);
-    if(code != EXIT_SUCCESS) {
-      throw new YarnException("Fail to launch application with exit code:" +
-          code);
+    if (code != EXIT_SUCCESS) {
+      throw new YarnException(
+          "Fail to launch application with exit code:" + code);
     }
 
     String appStatus=appAdminClient.getStatusString(serviceSpec.getName());
@@ -896,13 +97,24 @@ public class YarnServiceJobSubmitter implements JobSubmitter {
     return appid;
   }
 
-  @VisibleForTesting
-  public Service getServiceSpec() {
-    return serviceSpec;
+  private Service createTensorFlowServiceSpec(RunJobParameters parameters,
+      FileSystemOperations fsOperations, HadoopEnvironmentSetup hadoopEnvSetup)
+      throws IOException {
+    LaunchCommandFactory launchCommandFactory =
+        new LaunchCommandFactory(hadoopEnvSetup, parameters,
+            clientContext.getYarnConfig());
+    Localizer localizer = new Localizer(fsOperations,
+        clientContext.getRemoteDirectoryManager(), parameters);
+    TensorFlowServiceSpec tensorFlowServiceSpec = new TensorFlowServiceSpec(
+        parameters, this.clientContext, fsOperations, launchCommandFactory,
+        localizer);
+
+    serviceWrapper = tensorFlowServiceSpec.create();
+    return serviceWrapper.getService();
   }
 
   @VisibleForTesting
-  public Map<String, String> getComponentToLocalLaunchScriptPath() {
-    return componentToLocalLaunchScriptPath;
+  public ServiceWrapper getServiceWrapper() {
+    return serviceWrapper;
   }
 }

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/YarnServiceUtils.java

@@ -17,33 +17,27 @@ package org.apache.hadoop.yarn.submarine.runtimes.yarnservice;
 import com.google.common.annotations.VisibleForTesting;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.client.api.AppAdminClient;
-import org.apache.hadoop.yarn.service.api.records.Service;
-import org.apache.hadoop.yarn.submarine.common.Envs;
-import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.HashMap;
-import java.util.Map;
 
 import static org.apache.hadoop.yarn.client.api.AppAdminClient.DEFAULT_TYPE;
 
-public class YarnServiceUtils {
-  private static final Logger LOG =
-      LoggerFactory.getLogger(YarnServiceUtils.class);
+/**
+ * This class contains some static helper methods to query DNS data
+ * based on the provided parameters.
+ */
+public final class YarnServiceUtils {
+  private YarnServiceUtils() {
+  }
 
   // This will be true only in UT.
   private static AppAdminClient stubServiceClient = null;
 
-  public static AppAdminClient createServiceClient(
+  static AppAdminClient createServiceClient(
       Configuration yarnConfiguration) {
     if (stubServiceClient != null) {
       return stubServiceClient;
     }
 
-    AppAdminClient serviceClient = AppAdminClient.createAppAdminClient(
-        DEFAULT_TYPE, yarnConfiguration);
-    return serviceClient;
+    return AppAdminClient.createAppAdminClient(DEFAULT_TYPE, yarnConfiguration);
   }
 
   @VisibleForTesting
@@ -57,77 +51,9 @@ public class YarnServiceUtils {
         domain, port);
   }
 
-  private static String getDNSNameCommonSuffix(String serviceName,
+  public static String getDNSNameCommonSuffix(String serviceName,
       String userName, String domain, int port) {
     return "." + serviceName + "." + userName + "." + domain + ":" + port;
   }
 
-  public static String getTFConfigEnv(String curCommponentName, int nWorkers,
-      int nPs, String serviceName, String userName, String domain) {
-    String commonEndpointSuffix = getDNSNameCommonSuffix(serviceName, userName,
-        domain, 8000);
-
-    String json = "{\\\"cluster\\\":{";
-
-    String master = getComponentArrayJson("master", 1, commonEndpointSuffix)
-        + ",";
-    String worker = getComponentArrayJson("worker", nWorkers - 1,
-        commonEndpointSuffix) + ",";
-    String ps = getComponentArrayJson("ps", nPs, commonEndpointSuffix) + "},";
-
-    StringBuilder sb = new StringBuilder();
-    sb.append("\\\"task\\\":{");
-    sb.append(" \\\"type\\\":\\\"");
-    sb.append(curCommponentName);
-    sb.append("\\\",");
-    sb.append(" \\\"index\\\":");
-    sb.append('$');
-    sb.append(Envs.TASK_INDEX_ENV + "},");
-    String task = sb.toString();
-    String environment = "\\\"environment\\\":\\\"cloud\\\"}";
-
-    sb = new StringBuilder();
-    sb.append(json);
-    sb.append(master);
-    sb.append(worker);
-    sb.append(ps);
-    sb.append(task);
-    sb.append(environment);
-    return sb.toString();
-  }
-
-  public static void addQuicklink(Service serviceSpec, String label,
-      String link) {
-    Map<String, String> quicklinks = serviceSpec.getQuicklinks();
-    if (null == quicklinks) {
-      quicklinks = new HashMap<>();
-      serviceSpec.setQuicklinks(quicklinks);
-    }
-
-    if (SubmarineLogs.isVerbose()) {
-      LOG.info("Added quicklink, " + label + "=" + link);
-    }
-
-    quicklinks.put(label, link);
-  }
-
-  private static String getComponentArrayJson(String componentName, int count,
-      String endpointSuffix) {
-    String component = "\\\"" + componentName + "\\\":";
-    StringBuilder array = new StringBuilder();
-    array.append("[");
-    for (int i = 0; i < count; i++) {
-      array.append("\\\"");
-      array.append(componentName);
-      array.append("-");
-      array.append(i);
-      array.append(endpointSuffix);
-      array.append("\\\"");
-      if (i != count - 1) {
-        array.append(",");
-      }
-    }
-    array.append("]");
-    return component + array.toString();
-  }
 }

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/command/AbstractLaunchCommand.java

@@ -0,0 +1,64 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.command;
+
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import java.io.IOException;
+import java.util.Objects;
+
+/**
+ * Abstract base class for Launch command implementations for Services.
+ * Currently we have launch command implementations
+ * for TensorFlow PS, worker and Tensorboard instances.
+ */
+public abstract class AbstractLaunchCommand {
+  private final LaunchScriptBuilder builder;
+
+  public AbstractLaunchCommand(HadoopEnvironmentSetup hadoopEnvSetup,
+      TaskType taskType, Component component, RunJobParameters parameters)
+      throws IOException {
+    Objects.requireNonNull(taskType, "TaskType must not be null!");
+    this.builder = new LaunchScriptBuilder(taskType.name(), hadoopEnvSetup,
+        parameters, component);
+  }
+
+  protected LaunchScriptBuilder getBuilder() {
+    return builder;
+  }
+
+  /**
+   * Subclasses need to defined this method and return a valid launch script.
+   * Implementors can utilize the {@link LaunchScriptBuilder} using
+   * the getBuilder method of this class.
+   * @return The contents of a script.
+   * @throws IOException If any IO issue happens.
+   */
+  public abstract String generateLaunchScript() throws IOException;
+
+  /**
+   * Subclasses need to provide a service-specific launch command
+   * of the service.
+   * Please note that this method should only return the launch command
+   * but not the whole script.
+   * @return The launch command
+   */
+  public abstract String createLaunchCommand();
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/command/LaunchCommandFactory.java

@@ -0,0 +1,67 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.command;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorBoardLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorFlowPsLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorFlowWorkerLaunchCommand;
+
+import java.io.IOException;
+import java.util.Objects;
+
+/**
+ * Simple factory to create instances of {@link AbstractLaunchCommand}
+ * based on the {@link TaskType}.
+ * All dependencies are passed to this factory that could be required
+ * by any implementor of {@link AbstractLaunchCommand}.
+ */
+public class LaunchCommandFactory {
+  private final HadoopEnvironmentSetup hadoopEnvSetup;
+  private final RunJobParameters parameters;
+  private final Configuration yarnConfig;
+
+  public LaunchCommandFactory(HadoopEnvironmentSetup hadoopEnvSetup,
+      RunJobParameters parameters, Configuration yarnConfig) {
+    this.hadoopEnvSetup = hadoopEnvSetup;
+    this.parameters = parameters;
+    this.yarnConfig = yarnConfig;
+  }
+
+  public AbstractLaunchCommand createLaunchCommand(TaskType taskType,
+      Component component) throws IOException {
+    Objects.requireNonNull(taskType, "TaskType must not be null!");
+
+    if (taskType == TaskType.WORKER || taskType == TaskType.PRIMARY_WORKER) {
+      return new TensorFlowWorkerLaunchCommand(hadoopEnvSetup, taskType,
+          component, parameters, yarnConfig);
+
+    } else if (taskType == TaskType.PS) {
+      return new TensorFlowPsLaunchCommand(hadoopEnvSetup, taskType, component,
+          parameters, yarnConfig);
+
+    } else if (taskType == TaskType.TENSORBOARD) {
+      return new TensorBoardLaunchCommand(hadoopEnvSetup, taskType, component,
+          parameters);
+    }
+    throw new IllegalStateException("Unknown task type: " + taskType);
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/command/LaunchScriptBuilder.java

@@ -0,0 +1,107 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.command;
+
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+/**
+ * This class is a builder to conveniently create launch scripts.
+ * All dependencies are provided with the constructor except
+ * the launch command.
+ */
+public class LaunchScriptBuilder {
+  private static final Logger LOG = LoggerFactory.getLogger(
+      LaunchScriptBuilder.class);
+
+  private final File file;
+  private final HadoopEnvironmentSetup hadoopEnvSetup;
+  private final RunJobParameters parameters;
+  private final Component component;
+  private final OutputStreamWriter writer;
+  private final StringBuilder scriptBuffer;
+  private String launchCommand;
+
+  LaunchScriptBuilder(String namePrefix,
+      HadoopEnvironmentSetup hadoopEnvSetup, RunJobParameters parameters,
+      Component component) throws IOException {
+    this.file = File.createTempFile(namePrefix + "-launch-script", ".sh");
+    this.hadoopEnvSetup = hadoopEnvSetup;
+    this.parameters = parameters;
+    this.component = component;
+    this.writer = new OutputStreamWriter(new FileOutputStream(file), UTF_8);
+    this.scriptBuffer = new StringBuilder();
+  }
+
+  public void append(String s) {
+    scriptBuffer.append(s);
+  }
+
+  public LaunchScriptBuilder withLaunchCommand(String command) {
+    this.launchCommand = command;
+    return this;
+  }
+
+  public String build() throws IOException {
+    if (launchCommand != null) {
+      append(launchCommand);
+    } else {
+      LOG.warn("LaunchScript object was null!");
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("LaunchScript's Builder object: {}", this);
+      }
+    }
+
+    try (PrintWriter pw = new PrintWriter(writer)) {
+      writeBashHeader(pw);
+      hadoopEnvSetup.addHdfsClassPath(parameters, pw, component);
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("Appending command to launch script: {}", scriptBuffer);
+      }
+      pw.append(scriptBuffer);
+    }
+    return file.getAbsolutePath();
+  }
+
+  @Override
+  public String toString() {
+    return "LaunchScriptBuilder{" +
+        "file=" + file +
+        ", hadoopEnvSetup=" + hadoopEnvSetup +
+        ", parameters=" + parameters +
+        ", component=" + component +
+        ", writer=" + writer +
+        ", scriptBuffer=" + scriptBuffer +
+        ", launchCommand='" + launchCommand + '\'' +
+        '}';
+  }
+
+  private void writeBashHeader(PrintWriter pw) {
+    pw.append("#!/bin/bash\n");
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/command/package-info.java

@@ -0,0 +1,19 @@
+/*
+ * 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.
+ */
+/**
+ * This package contains classes to produce launch commands and scripts.
+ */
+package org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command;

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/TensorFlowCommons.java

@@ -0,0 +1,109 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.ServiceApiConstants;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.common.Envs;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.YarnServiceUtils;
+
+import java.util.Map;
+
+/**
+ * This class has common helper methods for TensorFlow.
+ */
+public final class TensorFlowCommons {
+  private TensorFlowCommons() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  public static void addCommonEnvironments(Component component,
+      TaskType taskType) {
+    Map<String, String> envs = component.getConfiguration().getEnv();
+    envs.put(Envs.TASK_INDEX_ENV, ServiceApiConstants.COMPONENT_ID);
+    envs.put(Envs.TASK_TYPE_ENV, taskType.name());
+  }
+
+  public static String getUserName() {
+    return System.getProperty("user.name");
+  }
+
+  public static String getDNSDomain(Configuration yarnConfig) {
+    return yarnConfig.get("hadoop.registry.dns.domain-name");
+  }
+
+  public static String getScriptFileName(TaskType taskType) {
+    return "run-" + taskType.name() + ".sh";
+  }
+
+  public static String getTFConfigEnv(String componentName, int nWorkers,
+      int nPs, String serviceName, String userName, String domain) {
+    String commonEndpointSuffix = YarnServiceUtils
+        .getDNSNameCommonSuffix(serviceName, userName, domain, 8000);
+
+    String json = "{\\\"cluster\\\":{";
+
+    String master = getComponentArrayJson("master", 1, commonEndpointSuffix)
+        + ",";
+    String worker = getComponentArrayJson("worker", nWorkers - 1,
+        commonEndpointSuffix) + ",";
+    String ps = getComponentArrayJson("ps", nPs, commonEndpointSuffix) + "},";
+
+    StringBuilder sb = new StringBuilder();
+    sb.append("\\\"task\\\":{");
+    sb.append(" \\\"type\\\":\\\"");
+    sb.append(componentName);
+    sb.append("\\\",");
+    sb.append(" \\\"index\\\":");
+    sb.append('$');
+    sb.append(Envs.TASK_INDEX_ENV + "},");
+    String task = sb.toString();
+    String environment = "\\\"environment\\\":\\\"cloud\\\"}";
+
+    sb = new StringBuilder();
+    sb.append(json);
+    sb.append(master);
+    sb.append(worker);
+    sb.append(ps);
+    sb.append(task);
+    sb.append(environment);
+    return sb.toString();
+  }
+
+  private static String getComponentArrayJson(String componentName, int count,
+      String endpointSuffix) {
+    String component = "\\\"" + componentName + "\\\":";
+    StringBuilder array = new StringBuilder();
+    array.append("[");
+    for (int i = 0; i < count; i++) {
+      array.append("\\\"");
+      array.append(componentName);
+      array.append("-");
+      array.append(i);
+      array.append(endpointSuffix);
+      array.append("\\\"");
+      if (i != count - 1) {
+        array.append(",");
+      }
+    }
+    array.append("]");
+    return component + array.toString();
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/TensorFlowServiceSpec.java

@@ -0,0 +1,203 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.KerberosPrincipal;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.apache.hadoop.yarn.submarine.client.cli.param.Quicklink;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.ClientContext;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.ServiceSpec;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.ServiceWrapper;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.YarnServiceUtils;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component.TensorBoardComponent;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component.TensorFlowPsComponent;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component.TensorFlowWorkerComponent;
+import org.apache.hadoop.yarn.submarine.utils.KerberosPrincipalFactory;
+import org.apache.hadoop.yarn.submarine.utils.Localizer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.getDNSDomain;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.getUserName;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component.TensorBoardComponent.TENSORBOARD_QUICKLINK_LABEL;
+import static org.apache.hadoop.yarn.submarine.utils.DockerUtilities.getDockerArtifact;
+import static org.apache.hadoop.yarn.submarine.utils.EnvironmentUtilities.handleServiceEnvs;
+
+/**
+ * This class contains all the logic to create an instance
+ * of a {@link Service} object for TensorFlow.
+ * Worker,PS and Tensorboard components are added to the Service
+ * based on the value of the received {@link RunJobParameters}.
+ */
+public class TensorFlowServiceSpec implements ServiceSpec {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TensorFlowServiceSpec.class);
+
+  private final RemoteDirectoryManager remoteDirectoryManager;
+
+  private final RunJobParameters parameters;
+  private final Configuration yarnConfig;
+  private final FileSystemOperations fsOperations;
+  private final LaunchCommandFactory launchCommandFactory;
+  private final Localizer localizer;
+
+  public TensorFlowServiceSpec(RunJobParameters parameters,
+      ClientContext clientContext, FileSystemOperations fsOperations,
+      LaunchCommandFactory launchCommandFactory, Localizer localizer) {
+    this.parameters = parameters;
+    this.remoteDirectoryManager = clientContext.getRemoteDirectoryManager();
+    this.yarnConfig = clientContext.getYarnConfig();
+    this.fsOperations = fsOperations;
+    this.launchCommandFactory = launchCommandFactory;
+    this.localizer = localizer;
+  }
+
+  @Override
+  public ServiceWrapper create() throws IOException {
+    ServiceWrapper serviceWrapper = createServiceSpecWrapper();
+
+    if (parameters.getNumWorkers() > 0) {
+      addWorkerComponents(serviceWrapper);
+    }
+
+    if (parameters.getNumPS() > 0) {
+      addPsComponent(serviceWrapper);
+    }
+
+    if (parameters.isTensorboardEnabled()) {
+      createTensorBoardComponent(serviceWrapper);
+    }
+
+    // After all components added, handle quicklinks
+    handleQuicklinks(serviceWrapper.getService());
+
+    return serviceWrapper;
+  }
+
+  private ServiceWrapper createServiceSpecWrapper() throws IOException {
+    Service serviceSpec = new Service();
+    serviceSpec.setName(parameters.getName());
+    serviceSpec.setVersion(String.valueOf(System.currentTimeMillis()));
+    serviceSpec.setArtifact(getDockerArtifact(parameters.getDockerImageName()));
+
+    KerberosPrincipal kerberosPrincipal = KerberosPrincipalFactory
+        .create(fsOperations, remoteDirectoryManager, parameters);
+    if (kerberosPrincipal != null) {
+      serviceSpec.setKerberosPrincipal(kerberosPrincipal);
+    }
+
+    handleServiceEnvs(serviceSpec, yarnConfig, parameters.getEnvars());
+    localizer.handleLocalizations(serviceSpec);
+    return new ServiceWrapper(serviceSpec);
+  }
+
+  private void createTensorBoardComponent(ServiceWrapper serviceWrapper)
+      throws IOException {
+    TensorBoardComponent tbComponent = new TensorBoardComponent(fsOperations,
+        remoteDirectoryManager, parameters, launchCommandFactory, yarnConfig);
+    serviceWrapper.addComponent(tbComponent);
+
+    addQuicklink(serviceWrapper.getService(), TENSORBOARD_QUICKLINK_LABEL,
+        tbComponent.getTensorboardLink());
+  }
+
+  private static void addQuicklink(Service serviceSpec, String label,
+      String link) {
+    Map<String, String> quicklinks = serviceSpec.getQuicklinks();
+    if (quicklinks == null) {
+      quicklinks = new HashMap<>();
+      serviceSpec.setQuicklinks(quicklinks);
+    }
+
+    if (SubmarineLogs.isVerbose()) {
+      LOG.info("Added quicklink, " + label + "=" + link);
+    }
+
+    quicklinks.put(label, link);
+  }
+
+  private void handleQuicklinks(Service serviceSpec)
+      throws IOException {
+    List<Quicklink> quicklinks = parameters.getQuicklinks();
+    if (quicklinks != null && !quicklinks.isEmpty()) {
+      for (Quicklink ql : quicklinks) {
+        // Make sure it is a valid instance name
+        String instanceName = ql.getComponentInstanceName();
+        boolean found = false;
+
+        for (Component comp : serviceSpec.getComponents()) {
+          for (int i = 0; i < comp.getNumberOfContainers(); i++) {
+            String possibleInstanceName = comp.getName() + "-" + i;
+            if (possibleInstanceName.equals(instanceName)) {
+              found = true;
+              break;
+            }
+          }
+        }
+
+        if (!found) {
+          throw new IOException(
+              "Couldn't find a component instance = " + instanceName
+                  + " while adding quicklink");
+        }
+
+        String link = ql.getProtocol()
+            + YarnServiceUtils.getDNSName(serviceSpec.getName(), instanceName,
+                getUserName(), getDNSDomain(yarnConfig), ql.getPort());
+        addQuicklink(serviceSpec, ql.getLabel(), link);
+      }
+    }
+  }
+
+  // Handle worker and primary_worker.
+
+  private void addWorkerComponents(ServiceWrapper serviceWrapper)
+      throws IOException {
+    addWorkerComponent(serviceWrapper, parameters, TaskType.PRIMARY_WORKER);
+
+    if (parameters.getNumWorkers() > 1) {
+      addWorkerComponent(serviceWrapper, parameters, TaskType.WORKER);
+    }
+  }
+  private void addWorkerComponent(ServiceWrapper serviceWrapper,
+      RunJobParameters parameters, TaskType taskType) throws IOException {
+    serviceWrapper.addComponent(
+        new TensorFlowWorkerComponent(fsOperations, remoteDirectoryManager,
+        parameters, taskType, launchCommandFactory, yarnConfig));
+  }
+
+  private void addPsComponent(ServiceWrapper serviceWrapper)
+      throws IOException {
+    serviceWrapper.addComponent(
+        new TensorFlowPsComponent(fsOperations, remoteDirectoryManager,
+            launchCommandFactory, parameters, yarnConfig));
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/TensorBoardLaunchCommand.java

@@ -0,0 +1,67 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.AbstractLaunchCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Objects;
+
+/**
+ * Launch command implementation for Tensorboard.
+ */
+public class TensorBoardLaunchCommand extends AbstractLaunchCommand {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TensorBoardLaunchCommand.class);
+  private final String checkpointPath;
+
+  public TensorBoardLaunchCommand(HadoopEnvironmentSetup hadoopEnvSetup,
+      TaskType taskType, Component component, RunJobParameters parameters)
+      throws IOException {
+    super(hadoopEnvSetup, taskType, component, parameters);
+    Objects.requireNonNull(parameters.getCheckpointPath(),
+        "CheckpointPath must not be null as it is part "
+            + "of the tensorboard command!");
+    if (StringUtils.isEmpty(parameters.getCheckpointPath())) {
+      throw new IllegalArgumentException("CheckpointPath must not be empty!");
+    }
+
+    this.checkpointPath = parameters.getCheckpointPath();
+  }
+
+  @Override
+  public String generateLaunchScript() throws IOException {
+    return getBuilder()
+        .withLaunchCommand(createLaunchCommand())
+        .build();
+  }
+
+  @Override
+  public String createLaunchCommand() {
+    String tbCommand = String.format("export LC_ALL=C && tensorboard " +
+        "--logdir=%s%n", checkpointPath);
+    LOG.info("Tensorboard command=" + tbCommand);
+    return tbCommand;
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/TensorFlowLaunchCommand.java

@@ -0,0 +1,87 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.AbstractLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchScriptBuilder;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * Launch command implementation for
+ * TensorFlow PS and Worker Service components.
+ */
+public abstract class TensorFlowLaunchCommand extends AbstractLaunchCommand {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TensorFlowLaunchCommand.class);
+  private final Configuration yarnConfig;
+  private final boolean distributed;
+  private final int numberOfWorkers;
+  private final int numberOfPS;
+  private final String name;
+  private final TaskType taskType;
+
+  TensorFlowLaunchCommand(HadoopEnvironmentSetup hadoopEnvSetup,
+      TaskType taskType, Component component, RunJobParameters parameters,
+      Configuration yarnConfig) throws IOException {
+    super(hadoopEnvSetup, taskType, component, parameters);
+    this.taskType = taskType;
+    this.name = parameters.getName();
+    this.distributed = parameters.isDistributed();
+    this.numberOfWorkers = parameters.getNumWorkers();
+    this.numberOfPS = parameters.getNumPS();
+    this.yarnConfig = yarnConfig;
+    logReceivedParameters();
+  }
+
+  private void logReceivedParameters() {
+    if (this.numberOfWorkers <= 0) {
+      LOG.warn("Received number of workers: {}", this.numberOfWorkers);
+    }
+    if (this.numberOfPS <= 0) {
+      LOG.warn("Received number of PS: {}", this.numberOfPS);
+    }
+  }
+
+  @Override
+  public String generateLaunchScript() throws IOException {
+    LaunchScriptBuilder builder = getBuilder();
+
+    // When distributed training is required
+    if (distributed) {
+      String tfConfigEnvValue = TensorFlowCommons.getTFConfigEnv(
+          taskType.getComponentName(), numberOfWorkers,
+          numberOfPS, name,
+          TensorFlowCommons.getUserName(),
+          TensorFlowCommons.getDNSDomain(yarnConfig));
+      String tfConfig = "export TF_CONFIG=\"" + tfConfigEnvValue + "\"\n";
+      builder.append(tfConfig);
+    }
+
+    return builder
+        .withLaunchCommand(createLaunchCommand())
+        .build();
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/TensorFlowPsLaunchCommand.java

@@ -0,0 +1,58 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * Launch command implementation for Tensorboard's PS component.
+ */
+public class TensorFlowPsLaunchCommand extends TensorFlowLaunchCommand {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TensorFlowPsLaunchCommand.class);
+  private final String launchCommand;
+
+  public TensorFlowPsLaunchCommand(HadoopEnvironmentSetup hadoopEnvSetup,
+      TaskType taskType, Component component, RunJobParameters parameters,
+      Configuration yarnConfig) throws IOException {
+    super(hadoopEnvSetup, taskType, component, parameters, yarnConfig);
+    this.launchCommand = parameters.getPSLaunchCmd();
+
+    if (StringUtils.isEmpty(this.launchCommand)) {
+      throw new IllegalArgumentException("LaunchCommand must not be null " +
+          "or empty!");
+    }
+  }
+
+  @Override
+  public String createLaunchCommand() {
+    if (SubmarineLogs.isVerbose()) {
+      LOG.info("PS command =[" + launchCommand + "]");
+    }
+    return launchCommand + '\n';
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/TensorFlowWorkerLaunchCommand.java

@@ -0,0 +1,59 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * Launch command implementation for Tensorboard's Worker component.
+ */
+public class TensorFlowWorkerLaunchCommand extends TensorFlowLaunchCommand {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TensorFlowWorkerLaunchCommand.class);
+  private final String launchCommand;
+
+  public TensorFlowWorkerLaunchCommand(
+      HadoopEnvironmentSetup hadoopEnvSetup, TaskType taskType,
+      Component component, RunJobParameters parameters,
+      Configuration yarnConfig) throws IOException {
+    super(hadoopEnvSetup, taskType, component, parameters, yarnConfig);
+    this.launchCommand = parameters.getWorkerLaunchCmd();
+
+    if (StringUtils.isEmpty(this.launchCommand)) {
+      throw new IllegalArgumentException("LaunchCommand must not be null " +
+          "or empty!");
+    }
+  }
+
+  @Override
+  public String createLaunchCommand() {
+    if (SubmarineLogs.isVerbose()) {
+      LOG.info("Worker command =[" + launchCommand + "]");
+    }
+    return launchCommand + '\n';
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/package-info.java

@@ -0,0 +1,19 @@
+/*
+ * 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.
+ */
+/**
+ * This package contains classes to generate TensorFlow launch commands.
+ */
+package org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/TensorBoardComponent.java

@@ -0,0 +1,96 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Component.RestartPolicyEnum;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.AbstractComponent;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.YarnServiceUtils;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Objects;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.addCommonEnvironments;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.getDNSDomain;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.getUserName;
+import static org.apache.hadoop.yarn.submarine.utils.DockerUtilities.getDockerArtifact;
+import static org.apache.hadoop.yarn.submarine.utils.SubmarineResourceUtils.convertYarnResourceToServiceResource;
+
+/**
+ * Component implementation for Tensorboard's Tensorboard.
+ */
+public class TensorBoardComponent extends AbstractComponent {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TensorBoardComponent.class);
+
+  public static final String TENSORBOARD_QUICKLINK_LABEL = "Tensorboard";
+  private static final int DEFAULT_PORT = 6006;
+
+  //computed fields
+  private String tensorboardLink;
+
+  public TensorBoardComponent(FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      RunJobParameters parameters,
+      LaunchCommandFactory launchCommandFactory,
+      Configuration yarnConfig) {
+    super(fsOperations, remoteDirectoryManager, parameters,
+        TaskType.TENSORBOARD, yarnConfig, launchCommandFactory);
+  }
+
+  @Override
+  public Component createComponent() throws IOException {
+    Objects.requireNonNull(parameters.getTensorboardResource(),
+        "TensorBoard resource must not be null!");
+
+    Component component = new Component();
+    component.setName(taskType.getComponentName());
+    component.setNumberOfContainers(1L);
+    component.setRestartPolicy(RestartPolicyEnum.NEVER);
+    component.setResource(convertYarnResourceToServiceResource(
+        parameters.getTensorboardResource()));
+
+    if (parameters.getTensorboardDockerImage() != null) {
+      component.setArtifact(
+          getDockerArtifact(parameters.getTensorboardDockerImage()));
+    }
+
+    addCommonEnvironments(component, taskType);
+    generateLaunchCommand(component);
+
+    tensorboardLink = "http://" + YarnServiceUtils.getDNSName(
+        parameters.getName(),
+        taskType.getComponentName() + "-" + 0, getUserName(),
+        getDNSDomain(yarnConfig), DEFAULT_PORT);
+    LOG.info("Link to tensorboard:" + tensorboardLink);
+
+    return component;
+  }
+
+  public String getTensorboardLink() {
+    return tensorboardLink;
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/TensorFlowPsComponent.java

@@ -0,0 +1,73 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.AbstractComponent;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+
+import java.io.IOException;
+import java.util.Objects;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.addCommonEnvironments;
+import static org.apache.hadoop.yarn.submarine.utils.DockerUtilities.getDockerArtifact;
+import static org.apache.hadoop.yarn.submarine.utils.SubmarineResourceUtils.convertYarnResourceToServiceResource;
+
+/**
+ * Component implementation for TensorFlow's PS process.
+ */
+public class TensorFlowPsComponent extends AbstractComponent {
+  public TensorFlowPsComponent(FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      LaunchCommandFactory launchCommandFactory,
+      RunJobParameters parameters,
+      Configuration yarnConfig) {
+    super(fsOperations, remoteDirectoryManager, parameters, TaskType.PS,
+        yarnConfig, launchCommandFactory);
+  }
+
+  @Override
+  public Component createComponent() throws IOException {
+    Objects.requireNonNull(parameters.getPsResource(),
+        "PS resource must not be null!");
+    if (parameters.getNumPS() < 1) {
+      throw new IllegalArgumentException("Number of PS should be at least 1!");
+    }
+
+    Component component = new Component();
+    component.setName(taskType.getComponentName());
+    component.setNumberOfContainers((long) parameters.getNumPS());
+    component.setRestartPolicy(Component.RestartPolicyEnum.NEVER);
+    component.setResource(
+        convertYarnResourceToServiceResource(parameters.getPsResource()));
+
+    // Override global docker image if needed.
+    if (parameters.getPsDockerImage() != null) {
+      component.setArtifact(
+          getDockerArtifact(parameters.getPsDockerImage()));
+    }
+    addCommonEnvironments(component, taskType);
+    generateLaunchCommand(component);
+
+    return component;
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/TensorFlowWorkerComponent.java

@@ -0,0 +1,82 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.AbstractComponent;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+import java.io.IOException;
+import java.util.Objects;
+import static org.apache.hadoop.yarn.service.conf.YarnServiceConstants.CONTAINER_STATE_REPORT_AS_SERVICE_STATE;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons.addCommonEnvironments;
+import static org.apache.hadoop.yarn.submarine.utils.DockerUtilities.getDockerArtifact;
+import static org.apache.hadoop.yarn.submarine.utils.SubmarineResourceUtils.convertYarnResourceToServiceResource;
+
+/**
+ * Component implementation for TensorFlow's Worker process.
+ */
+public class TensorFlowWorkerComponent extends AbstractComponent {
+  public TensorFlowWorkerComponent(FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      RunJobParameters parameters, TaskType taskType,
+      LaunchCommandFactory launchCommandFactory,
+      Configuration yarnConfig) {
+    super(fsOperations, remoteDirectoryManager, parameters, taskType,
+        yarnConfig, launchCommandFactory);
+  }
+
+  @Override
+  public Component createComponent() throws IOException {
+    Objects.requireNonNull(parameters.getWorkerResource(),
+        "Worker resource must not be null!");
+    if (parameters.getNumWorkers() < 1) {
+      throw new IllegalArgumentException(
+          "Number of workers should be at least 1!");
+    }
+
+    Component component = new Component();
+    component.setName(taskType.getComponentName());
+
+    if (taskType.equals(TaskType.PRIMARY_WORKER)) {
+      component.setNumberOfContainers(1L);
+      component.getConfiguration().setProperty(
+          CONTAINER_STATE_REPORT_AS_SERVICE_STATE, "true");
+    } else {
+      component.setNumberOfContainers(
+          (long) parameters.getNumWorkers() - 1);
+    }
+
+    if (parameters.getWorkerDockerImage() != null) {
+      component.setArtifact(
+          getDockerArtifact(parameters.getWorkerDockerImage()));
+    }
+
+    component.setResource(convertYarnResourceToServiceResource(
+            parameters.getWorkerResource()));
+    component.setRestartPolicy(Component.RestartPolicyEnum.NEVER);
+
+    addCommonEnvironments(component, taskType);
+    generateLaunchCommand(component);
+
+    return component;
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * 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.
+ */
+/**
+ * This package contains classes to generate
+ * TensorFlow Native Service components.
+ */
+package org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * 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.
+ */
+/**
+ * This package contains classes to generate
+ * TensorFlow-related Native Service runtime artifacts.
+ */
+package org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow;

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/ClassPathUtilities.java

@@ -0,0 +1,57 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import java.io.File;
+import java.util.StringTokenizer;
+
+/**
+ * Utilities for classpath operations.
+ */
+public final class ClassPathUtilities {
+  private ClassPathUtilities() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  public static File findFileOnClassPath(final String fileName) {
+    final String classpath = System.getProperty("java.class.path");
+    final String pathSeparator = System.getProperty("path.separator");
+    final StringTokenizer tokenizer = new StringTokenizer(classpath,
+        pathSeparator);
+
+    while (tokenizer.hasMoreTokens()) {
+      final String pathElement = tokenizer.nextToken();
+      final File directoryOrJar = new File(pathElement);
+      final File absoluteDirectoryOrJar = directoryOrJar.getAbsoluteFile();
+      if (absoluteDirectoryOrJar.isFile()) {
+        final File target =
+            new File(absoluteDirectoryOrJar.getParent(), fileName);
+        if (target.exists()) {
+          return target;
+        }
+      } else {
+        final File target = new File(directoryOrJar, fileName);
+        if (target.exists()) {
+          return target;
+        }
+      }
+    }
+
+    return null;
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/DockerUtilities.java

@@ -0,0 +1,33 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.hadoop.yarn.service.api.records.Artifact;
+
+/**
+ * Utilities for Docker-related operations.
+ */
+public final class DockerUtilities {
+  private DockerUtilities() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  public static Artifact getDockerArtifact(String dockerImageName) {
+    return new Artifact().type(Artifact.TypeEnum.DOCKER).id(dockerImageName);
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/EnvironmentUtilities.java

@@ -0,0 +1,120 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION;
+
+/**
+ * Utilities for environment variable related operations
+ * for {@link Service} objects.
+ */
+public final class EnvironmentUtilities {
+  private EnvironmentUtilities() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  private static final Logger LOG =
+      LoggerFactory.getLogger(EnvironmentUtilities.class);
+
+  static final String ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME =
+      "YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS";
+  private static final String MOUNTS_DELIM = ",";
+  private static final String ENV_SEPARATOR = "=";
+  private static final String ETC_PASSWD_MOUNT_STRING =
+      "/etc/passwd:/etc/passwd:ro";
+  private static final String KERBEROS_CONF_MOUNT_STRING =
+      "/etc/krb5.conf:/etc/krb5.conf:ro";
+  private static final String ENV_VAR_DELIM = ":";
+
+  /**
+   * Extracts value from a string representation of an environment variable.
+   * @param envVar The environment variable in 'key=value' format.
+   * @return The value of the environment variable
+   */
+  public static String getValueOfEnvironment(String envVar) {
+    if (envVar == null || !envVar.contains(ENV_SEPARATOR)) {
+      return "";
+    } else {
+      return envVar.substring(envVar.indexOf(ENV_SEPARATOR) + 1);
+    }
+  }
+
+  public static void handleServiceEnvs(Service service,
+      Configuration yarnConfig, List<String> envVars) {
+    if (envVars != null) {
+      for (String envVarPair : envVars) {
+        String key, value;
+        if (envVarPair.contains(ENV_SEPARATOR)) {
+          int idx = envVarPair.indexOf(ENV_SEPARATOR);
+          key = envVarPair.substring(0, idx);
+          value = envVarPair.substring(idx + 1);
+        } else {
+          LOG.warn("Found environment variable with unusual format: '{}'",
+              envVarPair);
+          // No "=" found so use the whole key
+          key = envVarPair;
+          value = "";
+        }
+        appendToEnv(service, key, value, ENV_VAR_DELIM);
+      }
+    }
+    appendOtherConfigs(service, yarnConfig);
+  }
+
+  /**
+   * Appends other configs like /etc/passwd, /etc/krb5.conf.
+   * @param service
+   * @param yarnConfig
+   */
+  private static void appendOtherConfigs(Service service,
+      Configuration yarnConfig) {
+    appendToEnv(service, ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME,
+        ETC_PASSWD_MOUNT_STRING, MOUNTS_DELIM);
+
+    String authentication = yarnConfig.get(HADOOP_SECURITY_AUTHENTICATION);
+    if (authentication != null && authentication.equals("kerberos")) {
+      appendToEnv(service, ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME,
+          KERBEROS_CONF_MOUNT_STRING, MOUNTS_DELIM);
+    }
+  }
+
+  static void appendToEnv(Service service, String key, String value,
+      String delim) {
+    Map<String, String> env = service.getConfiguration().getEnv();
+    if (!env.containsKey(key)) {
+      env.put(key, value);
+    } else {
+      if (!value.isEmpty()) {
+        String existingValue = env.get(key);
+        if (!existingValue.endsWith(delim)) {
+          env.put(key, existingValue + delim + value);
+        } else {
+          env.put(key, existingValue + value);
+        }
+      }
+    }
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/KerberosPrincipalFactory.java

@@ -0,0 +1,95 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.yarn.service.api.records.KerberosPrincipal;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Objects;
+
+/**
+ * Simple factory that creates a {@link KerberosPrincipal}.
+ */
+public final class KerberosPrincipalFactory {
+  private KerberosPrincipalFactory() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  private static final Logger LOG =
+      LoggerFactory.getLogger(KerberosPrincipalFactory.class);
+
+  public static KerberosPrincipal create(FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      RunJobParameters parameters) throws IOException {
+    Objects.requireNonNull(fsOperations,
+        "FileSystemOperations must not be null!");
+    Objects.requireNonNull(remoteDirectoryManager,
+        "RemoteDirectoryManager must not be null!");
+    Objects.requireNonNull(parameters, "Parameters must not be null!");
+
+    if (StringUtils.isNotBlank(parameters.getKeytab()) && StringUtils
+        .isNotBlank(parameters.getPrincipal())) {
+      String keytab = parameters.getKeytab();
+      String principal = parameters.getPrincipal();
+      if (parameters.isDistributeKeytab()) {
+        return handleDistributedKeytab(fsOperations, remoteDirectoryManager,
+            parameters, keytab, principal);
+      } else {
+        return handleNormalKeytab(keytab, principal);
+      }
+    }
+    LOG.debug("Principal and keytab was null or empty, " +
+        "returning null KerberosPrincipal!");
+    return null;
+  }
+
+  private static KerberosPrincipal handleDistributedKeytab(
+      FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      RunJobParameters parameters, String keytab, String principal)
+      throws IOException {
+    Path stagingDir = remoteDirectoryManager
+        .getJobStagingArea(parameters.getName(), true);
+    Path remoteKeytabPath =
+        fsOperations.uploadToRemoteFile(stagingDir, keytab);
+    // Only the owner has read access
+    fsOperations.setPermission(remoteKeytabPath,
+        FsPermission.createImmutable((short)Integer.parseInt("400", 8)));
+    return new KerberosPrincipal()
+        .keytab(remoteKeytabPath.toString())
+        .principalName(principal);
+  }
+
+  private static KerberosPrincipal handleNormalKeytab(String keytab,
+      String principal) {
+    if(!keytab.startsWith("file")) {
+      keytab = "file://" + keytab;
+    }
+    return new KerberosPrincipal()
+        .keytab(keytab)
+        .principalName(principal);
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/Localizer.java

@@ -0,0 +1,170 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.ConfigFile;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.apache.hadoop.yarn.submarine.client.cli.param.Localization;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.List;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations.needHdfs;
+import static org.apache.hadoop.yarn.submarine.utils.EnvironmentUtilities.appendToEnv;
+
+/**
+ * This class holds all dependencies in order to localize dependencies
+ * for containers.
+ */
+public class Localizer {
+  private static final Logger LOG = LoggerFactory.getLogger(Localizer.class);
+
+  private final FileSystemOperations fsOperations;
+  private final RemoteDirectoryManager remoteDirectoryManager;
+  private final RunJobParameters parameters;
+
+  public Localizer(FileSystemOperations fsOperations,
+      RemoteDirectoryManager remoteDirectoryManager,
+      RunJobParameters parameters) {
+    this.fsOperations = fsOperations;
+    this.remoteDirectoryManager = remoteDirectoryManager;
+    this.parameters = parameters;
+  }
+
+  /**
+   * Localize dependencies for all containers.
+   * If remoteUri is a local directory,
+   * we'll zip it, upload to HDFS staging dir HDFS.
+   * If remoteUri is directory, we'll download it, zip it and upload
+   * to HDFS.
+   * If localFilePath is ".", we'll use remoteUri's file/dir name
+   * */
+  public void handleLocalizations(Service service)
+      throws IOException {
+    // Handle localizations
+    Path stagingDir =
+        remoteDirectoryManager.getJobStagingArea(
+            parameters.getName(), true);
+    List<Localization> localizations = parameters.getLocalizations();
+    String remoteUri;
+    String containerLocalPath;
+
+    // Check to fail fast
+    for (Localization loc : localizations) {
+      remoteUri = loc.getRemoteUri();
+      Path resourceToLocalize = new Path(remoteUri);
+      // Check if remoteUri exists
+      if (remoteDirectoryManager.isRemote(remoteUri)) {
+        // check if exists
+        if (!remoteDirectoryManager.existsRemoteFile(resourceToLocalize)) {
+          throw new FileNotFoundException(
+              "File " + remoteUri + " doesn't exists.");
+        }
+      } else {
+        // Check if exists
+        File localFile = new File(remoteUri);
+        if (!localFile.exists()) {
+          throw new FileNotFoundException(
+              "File " + remoteUri + " doesn't exists.");
+        }
+      }
+      // check remote file size
+      fsOperations.validFileSize(remoteUri);
+    }
+    // Start download remote if needed and upload to HDFS
+    for (Localization loc : localizations) {
+      remoteUri = loc.getRemoteUri();
+      containerLocalPath = loc.getLocalPath();
+      String srcFileStr = remoteUri;
+      ConfigFile.TypeEnum destFileType = ConfigFile.TypeEnum.STATIC;
+      Path resourceToLocalize = new Path(remoteUri);
+      boolean needUploadToHDFS = true;
+
+
+      // Special handling of remoteUri directory
+      boolean needDeleteTempFile = false;
+      if (remoteDirectoryManager.isDir(remoteUri)) {
+        destFileType = ConfigFile.TypeEnum.ARCHIVE;
+        srcFileStr = fsOperations.downloadAndZip(
+            remoteUri, getLastNameFromPath(srcFileStr), true);
+      } else if (remoteDirectoryManager.isRemote(remoteUri)) {
+        if (!needHdfs(remoteUri)) {
+          // Non HDFS remote uri. Non directory, no need to zip
+          srcFileStr = fsOperations.downloadAndZip(
+              remoteUri, getLastNameFromPath(srcFileStr), false);
+          needDeleteTempFile = true;
+        } else {
+          // HDFS file, no need to upload
+          needUploadToHDFS = false;
+        }
+      }
+
+      // Upload file to HDFS
+      if (needUploadToHDFS) {
+        resourceToLocalize =
+            fsOperations.uploadToRemoteFile(stagingDir, srcFileStr);
+      }
+      if (needDeleteTempFile) {
+        fsOperations.deleteFiles(srcFileStr);
+      }
+      // Remove .zip from zipped dir name
+      if (destFileType == ConfigFile.TypeEnum.ARCHIVE
+          && srcFileStr.endsWith(".zip")) {
+        // Delete local zip file
+        fsOperations.deleteFiles(srcFileStr);
+        int suffixIndex = srcFileStr.lastIndexOf('_');
+        srcFileStr = srcFileStr.substring(0, suffixIndex);
+      }
+      // If provided, use the name of local uri
+      if (!containerLocalPath.equals(".")
+          && !containerLocalPath.equals("./")) {
+        // Change the YARN localized file name to what'll used in container
+        srcFileStr = getLastNameFromPath(containerLocalPath);
+      }
+      String localizedName = getLastNameFromPath(srcFileStr);
+      LOG.info("The file/dir to be localized is {}",
+          resourceToLocalize.toString());
+      LOG.info("Its localized file name will be {}", localizedName);
+      service.getConfiguration().getFiles().add(new ConfigFile().srcFile(
+          resourceToLocalize.toUri().toString()).destFile(localizedName)
+          .type(destFileType));
+      // set mounts
+      // if mount path is absolute, just use it.
+      // if relative, no need to mount explicitly
+      if (containerLocalPath.startsWith("/")) {
+        String mountStr = getLastNameFromPath(srcFileStr) + ":"
+            + containerLocalPath + ":" + loc.getMountPermission();
+        LOG.info("Add bind-mount string {}", mountStr);
+        appendToEnv(service,
+            EnvironmentUtilities.ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME,
+            mountStr, ",");
+      }
+    }
+  }
+
+  private String getLastNameFromPath(String srcFileStr) {
+    return new Path(srcFileStr).getName();
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/SubmarineResourceUtils.java

@@ -0,0 +1,51 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.hadoop.yarn.service.api.records.Resource;
+import org.apache.hadoop.yarn.service.api.records.ResourceInformation;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Resource utilities for Submarine.
+ */
+public final class SubmarineResourceUtils {
+  private SubmarineResourceUtils() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  public static Resource convertYarnResourceToServiceResource(
+      org.apache.hadoop.yarn.api.records.Resource yarnResource) {
+    Resource serviceResource = new Resource();
+    serviceResource.setCpus(yarnResource.getVirtualCores());
+    serviceResource.setMemory(String.valueOf(yarnResource.getMemorySize()));
+
+    Map<String, ResourceInformation> riMap = new HashMap<>();
+    for (org.apache.hadoop.yarn.api.records.ResourceInformation ri :
+        yarnResource.getAllResourcesListCopy()) {
+      ResourceInformation serviceRi = new ResourceInformation();
+      serviceRi.setValue(ri.getValue());
+      serviceRi.setUnit(ri.getUnits());
+      riMap.put(ri.getName(), serviceRi);
+    }
+    serviceResource.setResourceInformations(riMap);
+
+    return serviceResource;
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/ZipUtilities.java

@@ -0,0 +1,82 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+/**
+ * Utilities for zipping directories and adding existing directories to zips.
+ */
+public final class ZipUtilities {
+  private ZipUtilities() {
+    throw new UnsupportedOperationException("This class should not be " +
+        "instantiated!");
+  }
+
+  private static final Logger LOG = LoggerFactory.getLogger(ZipUtilities.class);
+
+  @VisibleForTesting
+  public static String zipDir(String srcDir, String dstFile)
+      throws IOException {
+    FileOutputStream fos = new FileOutputStream(dstFile);
+    ZipOutputStream zos = new ZipOutputStream(fos);
+    File srcFile = new File(srcDir);
+    LOG.info("Compressing directory {}", srcDir);
+    addDirToZip(zos, srcFile, srcFile);
+    // close the ZipOutputStream
+    zos.close();
+    LOG.info("Compressed directory {} to file: {}", srcDir, dstFile);
+    return dstFile;
+  }
+
+  private static void addDirToZip(ZipOutputStream zos, File srcFile, File base)
+      throws IOException {
+    File[] files = srcFile.listFiles();
+    if (files == null) {
+      return;
+    }
+    for (File file : files) {
+      // if it's directory, add recursively
+      if (file.isDirectory()) {
+        addDirToZip(zos, file, base);
+        continue;
+      }
+      byte[] buffer = new byte[1024];
+      try(FileInputStream fis = new FileInputStream(file)) {
+        String name = base.toURI().relativize(file.toURI()).getPath();
+        LOG.info("Adding file {} to zip", name);
+        zos.putNextEntry(new ZipEntry(name));
+        int length;
+        while ((length = fis.read(buffer)) > 0) {
+          zos.write(buffer, 0, length);
+        }
+        zos.flush();
+      } finally {
+        zos.closeEntry();
+      }
+    }
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/main/java/org/apache/hadoop/yarn/submarine/utils/package-info.java

@@ -0,0 +1,19 @@
+/*
+ * 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.
+ */
+/**
+ * This package contains classes utility classes.
+ */
+package org.apache.hadoop.yarn.submarine.utils;

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/FileUtilitiesForTests.java

@@ -0,0 +1,146 @@
+/*
+ * 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.hadoop.yarn.submarine;
+
+import com.google.common.collect.Lists;
+import org.apache.commons.io.FileUtils;
+import org.apache.hadoop.fs.Path;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+import static org.junit.Assert.assertTrue;
+
+/**
+ * File utilities for tests.
+ * Provides methods that can create, delete files or directories
+ * in a temp directory, or any specified directory.
+ */
+public class FileUtilitiesForTests {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(FileUtilitiesForTests.class);
+  private String tempDir;
+  private List<File> cleanupFiles;
+
+  public void setup() {
+    cleanupFiles = Lists.newArrayList();
+    tempDir = System.getProperty("java.io.tmpdir");
+  }
+
+  public void teardown() throws IOException {
+    LOG.info("About to clean up files: " + cleanupFiles);
+    List<File> dirs = Lists.newArrayList();
+    for (File cleanupFile : cleanupFiles) {
+      if (cleanupFile.isDirectory()) {
+        dirs.add(cleanupFile);
+      } else {
+        deleteFile(cleanupFile);
+      }
+    }
+
+    for (File dir : dirs) {
+      deleteFile(dir);
+    }
+  }
+
+  public File createFileInTempDir(String filename) throws IOException {
+    File file = new File(tempDir, new Path(filename).getName());
+    createFile(file);
+    return file;
+  }
+
+  public File createDirInTempDir(String dirName) {
+    File file = new File(tempDir, new Path(dirName).getName());
+    createDirectory(file);
+    return file;
+  }
+
+  public File createFileInDir(Path dir, String filename) throws IOException {
+    File dirTmp = new File(dir.toUri().getPath());
+    if (!dirTmp.exists()) {
+      createDirectory(dirTmp);
+    }
+    File file =
+        new File(dir.toUri().getPath() + "/" + new Path(filename).getName());
+    createFile(file);
+    return file;
+  }
+
+  public File createFileInDir(File dir, String filename) throws IOException {
+    if (!dir.exists()) {
+      createDirectory(dir);
+    }
+    File file = new File(dir, filename);
+    createFile(file);
+    return file;
+  }
+
+  public File createDirectory(Path parent, String dirname) {
+    File dir =
+        new File(parent.toUri().getPath() + "/" + new Path(dirname).getName());
+    createDirectory(dir);
+    return dir;
+  }
+
+  public File createDirectory(File parent, String dirname) {
+    File dir =
+        new File(parent.getPath() + "/" + new Path(dirname).getName());
+    createDirectory(dir);
+    return dir;
+  }
+
+  private void createDirectory(File dir) {
+    boolean result = dir.mkdir();
+    assertTrue("Failed to create directory " + dir.getAbsolutePath(), result);
+    assertTrue("Directory does not exist: " + dir.getAbsolutePath(),
+        dir.exists());
+    this.cleanupFiles.add(dir);
+  }
+
+  private void createFile(File file) throws IOException {
+    boolean result = file.createNewFile();
+    assertTrue("Failed to create file " + file.getAbsolutePath(), result);
+    assertTrue("File does not exist: " + file.getAbsolutePath(), file.exists());
+    this.cleanupFiles.add(file);
+  }
+
+  private static void deleteFile(File file) throws IOException {
+    if (file.isDirectory()) {
+      LOG.info("Removing directory: " + file.getAbsolutePath());
+      FileUtils.deleteDirectory(file);
+    }
+
+    if (file.exists()) {
+      LOG.info("Removing file: " + file.getAbsolutePath());
+      boolean result = file.delete();
+      assertTrue("Deletion of file " + file.getAbsolutePath()
+          + " was not successful!", result);
+    }
+  }
+
+  public File getTempFileWithName(String filename) {
+    return new File(tempDir + "/" + new Path(filename).getName());
+  }
+
+  public static File getFilename(Path parent, String filename) {
+    return new File(
+        parent.toUri().getPath() + "/" + new Path(filename).getName());
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/client/cli/yarnservice/ParamBuilderForTest.java

@@ -0,0 +1,139 @@
+/*
+ * 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.hadoop.yarn.submarine.client.cli.yarnservice;
+
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
+class ParamBuilderForTest {
+  private final List<String> params = Lists.newArrayList();
+
+  static ParamBuilderForTest create() {
+    return new ParamBuilderForTest();
+  }
+
+  ParamBuilderForTest withJobName(String name) {
+    params.add("--name");
+    params.add(name);
+    return this;
+  }
+
+  ParamBuilderForTest withDockerImage(String dockerImage) {
+    params.add("--docker_image");
+    params.add(dockerImage);
+    return this;
+  }
+
+  ParamBuilderForTest withInputPath(String inputPath) {
+    params.add("--input_path");
+    params.add(inputPath);
+    return this;
+  }
+
+  ParamBuilderForTest withCheckpointPath(String checkpointPath) {
+    params.add("--checkpoint_path");
+    params.add(checkpointPath);
+    return this;
+  }
+
+  ParamBuilderForTest withNumberOfWorkers(int numWorkers) {
+    params.add("--num_workers");
+    params.add(String.valueOf(numWorkers));
+    return this;
+  }
+
+  ParamBuilderForTest withNumberOfPs(int numPs) {
+    params.add("--num_ps");
+    params.add(String.valueOf(numPs));
+    return this;
+  }
+
+  ParamBuilderForTest withWorkerLaunchCommand(String launchCommand) {
+    params.add("--worker_launch_cmd");
+    params.add(launchCommand);
+    return this;
+  }
+
+  ParamBuilderForTest withPsLaunchCommand(String launchCommand) {
+    params.add("--ps_launch_cmd");
+    params.add(launchCommand);
+    return this;
+  }
+
+  ParamBuilderForTest withWorkerResources(String workerResources) {
+    params.add("--worker_resources");
+    params.add(workerResources);
+    return this;
+  }
+
+  ParamBuilderForTest withPsResources(String psResources) {
+    params.add("--ps_resources");
+    params.add(psResources);
+    return this;
+  }
+
+  ParamBuilderForTest withWorkerDockerImage(String dockerImage) {
+    params.add("--worker_docker_image");
+    params.add(dockerImage);
+    return this;
+  }
+
+  ParamBuilderForTest withPsDockerImage(String dockerImage) {
+    params.add("--ps_docker_image");
+    params.add(dockerImage);
+    return this;
+  }
+
+  ParamBuilderForTest withVerbose() {
+    params.add("--verbose");
+    return this;
+  }
+
+  ParamBuilderForTest withTensorboard() {
+    params.add("--tensorboard");
+    return this;
+  }
+
+  ParamBuilderForTest withTensorboardResources(String resources) {
+    params.add("--tensorboard_resources");
+    params.add(resources);
+    return this;
+  }
+
+  ParamBuilderForTest withTensorboardDockerImage(String dockerImage) {
+    params.add("--tensorboard_docker_image");
+    params.add(dockerImage);
+    return this;
+  }
+
+  ParamBuilderForTest withQuickLink(String quickLink) {
+    params.add("--quicklink");
+    params.add(quickLink);
+    return this;
+  }
+
+  ParamBuilderForTest withLocalization(String remoteUrl, String localUrl) {
+    params.add("--localization");
+    params.add(remoteUrl + ":" + localUrl);
+    return this;
+  }
+
+  String[] build() {
+    return params.toArray(new String[0]);
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/client/cli/yarnservice/TestYarnServiceRunJobCliCommons.java

@@ -0,0 +1,79 @@
+/*
+ * 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.hadoop.yarn.submarine.client.cli.yarnservice;
+
+import org.apache.hadoop.yarn.client.api.AppAdminClient;
+import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.apache.hadoop.yarn.submarine.FileUtilitiesForTests;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.runtimes.common.JobSubmitter;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.YarnServiceJobSubmitter;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.YarnServiceUtils;
+
+import java.io.IOException;
+
+import static org.apache.hadoop.yarn.service.exceptions.LauncherExitCodes.EXIT_SUCCESS;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * Common operations shared with test classes using Run job-related actions.
+ */
+public class TestYarnServiceRunJobCliCommons {
+  static final String DEFAULT_JOB_NAME = "my-job";
+  static final String DEFAULT_DOCKER_IMAGE = "tf-docker:1.1.0";
+  static final String DEFAULT_INPUT_PATH = "s3://input";
+  static final String DEFAULT_CHECKPOINT_PATH = "s3://output";
+  static final String DEFAULT_WORKER_DOCKER_IMAGE = "worker.image";
+  static final String DEFAULT_PS_DOCKER_IMAGE = "ps.image";
+  static final String DEFAULT_WORKER_LAUNCH_CMD = "python run-job.py";
+  static final String DEFAULT_PS_LAUNCH_CMD = "python run-ps.py";
+  static final String DEFAULT_TENSORBOARD_RESOURCES = "memory=2G,vcores=2";
+  static final String DEFAULT_WORKER_RESOURCES = "memory=2048M,vcores=2";
+  static final String DEFAULT_PS_RESOURCES = "memory=4096M,vcores=4";
+  static final String DEFAULT_TENSORBOARD_DOCKER_IMAGE = "tb_docker_image:001";
+
+  private FileUtilitiesForTests fileUtils = new FileUtilitiesForTests();
+
+  void setup() throws IOException, YarnException {
+    SubmarineLogs.verboseOff();
+    AppAdminClient serviceClient = mock(AppAdminClient.class);
+    when(serviceClient.actionLaunch(any(String.class), any(String.class),
+        any(Long.class), any(String.class))).thenReturn(EXIT_SUCCESS);
+    when(serviceClient.getStatusString(any(String.class))).thenReturn(
+        "{\"id\": \"application_1234_1\"}");
+    YarnServiceUtils.setStubServiceClient(serviceClient);
+
+    fileUtils.setup();
+  }
+
+  void teardown() throws IOException {
+    fileUtils.teardown();
+  }
+
+  FileUtilitiesForTests getFileUtils() {
+    return fileUtils;
+  }
+
+  Service getServiceSpecFromJobSubmitter(JobSubmitter jobSubmitter) {
+    return ((YarnServiceJobSubmitter) jobSubmitter).getServiceWrapper()
+        .getService();
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/client/cli/yarnservice/TestYarnServiceRunJobCliLocalization.java

@@ -0,0 +1,599 @@
+/*
+ * 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.hadoop.yarn.submarine.client.cli.yarnservice;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.service.api.records.ConfigFile;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.apache.hadoop.yarn.submarine.client.cli.RunJobCli;
+import org.apache.hadoop.yarn.submarine.common.MockClientContext;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineConfiguration;
+import org.apache.hadoop.yarn.submarine.common.conf.SubmarineLogs;
+import org.apache.hadoop.yarn.submarine.common.fs.RemoteDirectoryManager;
+import static org.apache.hadoop.yarn.submarine.client.cli.yarnservice.TestYarnServiceRunJobCliCommons.*;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * Class to test YarnService localization feature with the Run job CLI action.
+ */
+public class TestYarnServiceRunJobCliLocalization {
+  private static final String ZIP_EXTENSION = ".zip";
+  private TestYarnServiceRunJobCliCommons testCommons =
+      new TestYarnServiceRunJobCliCommons();
+  private MockClientContext mockClientContext;
+  private RemoteDirectoryManager spyRdm;
+
+  @Before
+  public void before() throws IOException, YarnException {
+    testCommons.setup();
+    mockClientContext = YarnServiceCliTestUtils.getMockClientContext();
+    spyRdm = setupSpyRemoteDirManager();
+  }
+
+  @After
+  public void cleanup() throws IOException {
+    testCommons.teardown();
+  }
+
+  private ParamBuilderForTest createCommonParamsBuilder() {
+    return ParamBuilderForTest.create()
+        .withJobName(DEFAULT_JOB_NAME)
+        .withDockerImage(DEFAULT_DOCKER_IMAGE)
+        .withInputPath(DEFAULT_INPUT_PATH)
+        .withCheckpointPath(DEFAULT_CHECKPOINT_PATH)
+        .withNumberOfWorkers(3)
+        .withWorkerDockerImage(DEFAULT_WORKER_DOCKER_IMAGE)
+        .withWorkerLaunchCommand(DEFAULT_WORKER_LAUNCH_CMD)
+        .withWorkerResources(DEFAULT_WORKER_RESOURCES)
+        .withNumberOfPs(2)
+        .withPsDockerImage(DEFAULT_PS_DOCKER_IMAGE)
+        .withPsLaunchCommand(DEFAULT_PS_LAUNCH_CMD)
+        .withPsResources(DEFAULT_PS_RESOURCES)
+        .withVerbose();
+  }
+
+  private void assertFilesAreDeleted(File... files) {
+    for (File file : files) {
+      assertFalse("File should be deleted: " + file.getAbsolutePath(),
+          file.exists());
+    }
+  }
+
+  private RemoteDirectoryManager setupSpyRemoteDirManager() {
+    RemoteDirectoryManager spyRdm =
+        spy(mockClientContext.getRemoteDirectoryManager());
+    mockClientContext.setRemoteDirectoryMgr(spyRdm);
+    return spyRdm;
+  }
+
+  private Path getStagingDir() throws IOException {
+    return mockClientContext.getRemoteDirectoryManager()
+        .getJobStagingArea(DEFAULT_JOB_NAME, true);
+  }
+
+  private RunJobCli createRunJobCliWithoutVerboseAssertion() {
+    return new RunJobCli(mockClientContext);
+  }
+
+  private RunJobCli createRunJobCli() {
+    RunJobCli runJobCli = new RunJobCli(mockClientContext);
+    assertFalse(SubmarineLogs.isVerbose());
+    return runJobCli;
+  }
+
+  private String getFilePath(String localUrl, Path stagingDir) {
+    return stagingDir.toUri().getPath()
+        + "/" + new Path(localUrl).getName();
+  }
+
+  private String getFilePathWithSuffix(Path stagingDir, String localUrl,
+      String suffix) {
+    return stagingDir.toUri().getPath() + "/" + new Path(localUrl).getName()
+        + suffix;
+  }
+
+  private void assertConfigFile(ConfigFile expected, ConfigFile actual) {
+    assertEquals("ConfigFile does not equal to expected!", expected, actual);
+  }
+
+  private void assertNumberOfLocalizations(List<ConfigFile> files,
+      int expected) {
+    assertEquals("Number of localizations is not the expected!", expected,
+        files.size());
+  }
+
+  private void verifyRdmCopyToRemoteLocalCalls(int expectedCalls)
+      throws IOException {
+    verify(spyRdm, times(expectedCalls)).copyRemoteToLocal(anyString(),
+        anyString());
+  }
+
+  /**
+   * Basic test.
+   * In one hand, create local temp file/dir for hdfs URI in
+   * local staging dir.
+   * In the other hand, use MockRemoteDirectoryManager mock
+   * implementation when check FileStatus or exists of HDFS file/dir
+   * --localization hdfs:///user/yarn/script1.py:.
+   * --localization /temp/script2.py:./
+   * --localization /temp/script2.py:/opt/script.py
+   */
+  @Test
+  public void testRunJobWithBasicLocalization() throws Exception {
+    String remoteUrl = "hdfs:///user/yarn/script1.py";
+    String containerLocal1 = ".";
+    String localUrl = "/temp/script2.py";
+    String containerLocal2 = "./";
+    String containerLocal3 = "/opt/script.py";
+    // Create local file, we need to put it under local temp dir
+    File localFile1 = testCommons.getFileUtils().createFileInTempDir(localUrl);
+
+    // create remote file in local staging dir to simulate HDFS
+    Path stagingDir = getStagingDir();
+    testCommons.getFileUtils().createFileInDir(stagingDir, remoteUrl);
+
+    String[] params = createCommonParamsBuilder()
+        .withLocalization(remoteUrl, containerLocal1)
+        .withLocalization(localFile1.getAbsolutePath(), containerLocal2)
+        .withLocalization(localFile1.getAbsolutePath(), containerLocal3)
+        .build();
+    RunJobCli runJobCli = createRunJobCli();
+    runJobCli.run(params);
+    Service serviceSpec = testCommons.getServiceSpecFromJobSubmitter(
+        runJobCli.getJobSubmitter());
+    assertNumberOfServiceComponents(serviceSpec, 3);
+
+    // No remote dir and HDFS file exists.
+    // Ensure download never happened.
+    verifyRdmCopyToRemoteLocalCalls(0);
+    // Ensure local original files are not deleted
+    assertTrue(localFile1.exists());
+
+    List<ConfigFile> files = serviceSpec.getConfiguration().getFiles();
+    assertNumberOfLocalizations(files, 3);
+
+    ConfigFile expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.STATIC);
+    expectedConfigFile.setSrcFile(remoteUrl);
+    expectedConfigFile.setDestFile(new Path(remoteUrl).getName());
+    assertConfigFile(expectedConfigFile, files.get(0));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.STATIC);
+    expectedConfigFile.setSrcFile(getFilePath(localUrl, stagingDir));
+    expectedConfigFile.setDestFile(new Path(localUrl).getName());
+    assertConfigFile(expectedConfigFile, files.get(1));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.STATIC);
+    expectedConfigFile.setSrcFile(getFilePath(localUrl, stagingDir));
+    expectedConfigFile.setDestFile(new Path(containerLocal3).getName());
+    assertConfigFile(expectedConfigFile, files.get(2));
+
+    // Ensure env value is correct
+    String env = serviceSpec.getConfiguration().getEnv()
+        .get("YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS");
+    String expectedMounts = new Path(containerLocal3).getName()
+        + ":" + containerLocal3 + ":rw";
+    assertTrue(env.contains(expectedMounts));
+  }
+
+  private void assertNumberOfServiceComponents(Service serviceSpec,
+      int expected) {
+    assertEquals(expected, serviceSpec.getComponents().size());
+  }
+
+  /**
+   * Non HDFS remote URI test.
+   * --localization https://a/b/1.patch:.
+   * --localization s3a://a/dir:/opt/mys3dir
+   */
+  @Test
+  public void testRunJobWithNonHDFSRemoteLocalization() throws Exception {
+    String remoteUri1 = "https://a/b/1.patch";
+    String containerLocal1 = ".";
+    String remoteUri2 = "s3a://a/s3dir";
+    String containerLocal2 = "/opt/mys3dir";
+
+    // create remote file in local staging dir to simulate HDFS
+    Path stagingDir = getStagingDir();
+    testCommons.getFileUtils().createFileInDir(stagingDir, remoteUri1);
+    File remoteDir1 =
+        testCommons.getFileUtils().createDirectory(stagingDir, remoteUri2);
+    testCommons.getFileUtils().createFileInDir(remoteDir1, "afile");
+
+    String suffix1 = "_" + remoteDir1.lastModified()
+        + "-" + mockClientContext.getRemoteDirectoryManager()
+        .getRemoteFileSize(remoteUri2);
+
+    String[] params = createCommonParamsBuilder()
+        .withLocalization(remoteUri1, containerLocal1)
+        .withLocalization(remoteUri2, containerLocal2)
+        .build();
+    RunJobCli runJobCli = createRunJobCli();
+    runJobCli.run(params);
+    Service serviceSpec = testCommons.getServiceSpecFromJobSubmitter(
+        runJobCli.getJobSubmitter());
+    assertNumberOfServiceComponents(serviceSpec, 3);
+
+    // Ensure download remote dir 2 times
+    verifyRdmCopyToRemoteLocalCalls(2);
+
+    // Ensure downloaded temp files are deleted
+    assertFilesAreDeleted(
+        testCommons.getFileUtils().getTempFileWithName(remoteUri1),
+        testCommons.getFileUtils().getTempFileWithName(remoteUri2));
+
+    // Ensure zip file are deleted
+    assertFilesAreDeleted(
+        testCommons.getFileUtils()
+            .getTempFileWithName(remoteUri2 + "_" + suffix1 + ZIP_EXTENSION));
+
+    List<ConfigFile> files = serviceSpec.getConfiguration().getFiles();
+    assertNumberOfLocalizations(files, 2);
+
+    ConfigFile expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.STATIC);
+    expectedConfigFile.setSrcFile(getFilePath(remoteUri1, stagingDir));
+    expectedConfigFile.setDestFile(new Path(remoteUri1).getName());
+    assertConfigFile(expectedConfigFile, files.get(0));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, remoteUri2, suffix1 + ZIP_EXTENSION));
+    expectedConfigFile.setDestFile(new Path(containerLocal2).getName());
+    assertConfigFile(expectedConfigFile, files.get(1));
+
+    // Ensure env value is correct
+    String env = serviceSpec.getConfiguration().getEnv()
+        .get("YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS");
+    String expectedMounts = new Path(remoteUri2).getName()
+        + ":" + containerLocal2 + ":rw";
+    assertTrue(env.contains(expectedMounts));
+  }
+
+  /**
+   * Test HDFS dir localization.
+   * --localization hdfs:///user/yarn/mydir:./mydir1
+   * --localization hdfs:///user/yarn/mydir2:/opt/dir2:rw
+   * --localization hdfs:///user/yarn/mydir:.
+   * --localization hdfs:///user/yarn/mydir2:./
+   */
+  @Test
+  public void testRunJobWithHdfsDirLocalization() throws Exception {
+    String remoteUrl = "hdfs:///user/yarn/mydir";
+    String containerPath = "./mydir1";
+    String remoteUrl2 = "hdfs:///user/yarn/mydir2";
+    String containerPath2 = "/opt/dir2";
+    String containerPath3 = ".";
+    String containerPath4 = "./";
+
+    // create remote file in local staging dir to simulate HDFS
+    Path stagingDir = getStagingDir();
+    File remoteDir1 =
+        testCommons.getFileUtils().createDirectory(stagingDir, remoteUrl);
+    testCommons.getFileUtils().createFileInDir(remoteDir1, "1.py");
+    testCommons.getFileUtils().createFileInDir(remoteDir1, "2.py");
+
+    File remoteDir2 =
+        testCommons.getFileUtils().createDirectory(stagingDir, remoteUrl2);
+    testCommons.getFileUtils().createFileInDir(remoteDir2, "3.py");
+    testCommons.getFileUtils().createFileInDir(remoteDir2, "4.py");
+
+    String suffix1 = "_" + remoteDir1.lastModified()
+        + "-" + mockClientContext.getRemoteDirectoryManager()
+        .getRemoteFileSize(remoteUrl);
+    String suffix2 = "_" + remoteDir2.lastModified()
+        + "-" + mockClientContext.getRemoteDirectoryManager()
+        .getRemoteFileSize(remoteUrl2);
+
+    String[] params = createCommonParamsBuilder()
+        .withLocalization(remoteUrl, containerPath)
+        .withLocalization(remoteUrl2, containerPath2)
+        .withLocalization(remoteUrl, containerPath3)
+        .withLocalization(remoteUrl2, containerPath4)
+        .build();
+    RunJobCli runJobCli = createRunJobCli();
+    runJobCli.run(params);
+    Service serviceSpec = testCommons.getServiceSpecFromJobSubmitter(
+        runJobCli.getJobSubmitter());
+    assertNumberOfServiceComponents(serviceSpec, 3);
+
+    // Ensure download remote dir 4 times
+    verifyRdmCopyToRemoteLocalCalls(4);
+
+    // Ensure downloaded temp files are deleted
+    assertFilesAreDeleted(
+        testCommons.getFileUtils().getTempFileWithName(remoteUrl),
+        testCommons.getFileUtils().getTempFileWithName(remoteUrl2));
+
+    // Ensure zip file are deleted
+    assertFilesAreDeleted(
+        testCommons.getFileUtils()
+            .getTempFileWithName(remoteUrl + suffix1 + ZIP_EXTENSION),
+        testCommons.getFileUtils()
+            .getTempFileWithName(remoteUrl2 + suffix2 + ZIP_EXTENSION));
+
+    // Ensure files will be localized
+    List<ConfigFile> files = serviceSpec.getConfiguration().getFiles();
+    assertNumberOfLocalizations(files, 4);
+
+    ConfigFile expectedConfigFile = new ConfigFile();
+    // The hdfs dir should be download and compress and let YARN to uncompress
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, remoteUrl, suffix1 + ZIP_EXTENSION));
+    // Relative path in container, but not "." or "./". Use its own name
+    expectedConfigFile.setDestFile(new Path(containerPath).getName());
+    assertConfigFile(expectedConfigFile, files.get(0));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, remoteUrl2, suffix2 + ZIP_EXTENSION));
+    expectedConfigFile.setDestFile(new Path(containerPath2).getName());
+    assertConfigFile(expectedConfigFile, files.get(1));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, remoteUrl, suffix1 + ZIP_EXTENSION));
+    // Relative path in container ".", use remote path name
+    expectedConfigFile.setDestFile(new Path(remoteUrl).getName());
+    assertConfigFile(expectedConfigFile, files.get(2));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, remoteUrl2, suffix2 + ZIP_EXTENSION));
+    // Relative path in container ".", use remote path name
+    expectedConfigFile.setDestFile(new Path(remoteUrl2).getName());
+    assertConfigFile(expectedConfigFile, files.get(3));
+
+    // Ensure mounts env value is correct. Add one mount string
+    String env = serviceSpec.getConfiguration().getEnv()
+        .get("YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS");
+
+    String expectedMounts =
+        new Path(containerPath2).getName() + ":" + containerPath2 + ":rw";
+    assertTrue(env.contains(expectedMounts));
+  }
+
+  /**
+   * Test if file/dir to be localized whose size exceeds limit.
+   * Max 10MB in configuration, mock remote will
+   * always return file size 100MB.
+   * This configuration will fail the job which has remoteUri
+   * But don't impact local dir/file
+   *
+   * --localization https://a/b/1.patch:.
+   * --localization s3a://a/dir:/opt/mys3dir
+   * --localization /temp/script2.py:./
+   */
+  @Test
+  public void testRunJobRemoteUriExceedLocalizationSize() throws Exception {
+    String remoteUri1 = "https://a/b/1.patch";
+    String containerLocal1 = ".";
+    String remoteUri2 = "s3a://a/s3dir";
+    String containerLocal2 = "/opt/mys3dir";
+    String localUri1 = "/temp/script2";
+    String containerLocal3 = "./";
+
+    SubmarineConfiguration submarineConf = new SubmarineConfiguration();
+
+    // Max 10MB, mock remote will always return file size 100MB.
+    submarineConf.set(
+        SubmarineConfiguration.LOCALIZATION_MAX_ALLOWED_FILE_SIZE_MB,
+        "10");
+    mockClientContext.setSubmarineConfig(submarineConf);
+
+    assertFalse(SubmarineLogs.isVerbose());
+
+    // create remote file in local staging dir to simulate
+    Path stagingDir = getStagingDir();
+    testCommons.getFileUtils().createFileInDir(stagingDir, remoteUri1);
+    File remoteDir1 =
+        testCommons.getFileUtils().createDirectory(stagingDir, remoteUri2);
+    testCommons.getFileUtils().createFileInDir(remoteDir1, "afile");
+
+    // create local file, we need to put it under local temp dir
+    File localFile1 = testCommons.getFileUtils().createFileInTempDir(localUri1);
+
+    try {
+      RunJobCli runJobCli = createRunJobCli();
+      String[] params = createCommonParamsBuilder()
+          .withLocalization(remoteUri1, containerLocal1)
+          .build();
+      runJobCli.run(params);
+    } catch (IOException e) {
+      // Shouldn't have exception because it's within file size limit
+      fail();
+    }
+    // we should download because fail fast
+    verifyRdmCopyToRemoteLocalCalls(1);
+    try {
+      String[] params = createCommonParamsBuilder()
+          .withLocalization(remoteUri1, containerLocal1)
+          .withLocalization(remoteUri2, containerLocal2)
+          .withLocalization(localFile1.getAbsolutePath(), containerLocal3)
+          .build();
+
+      reset(spyRdm);
+      RunJobCli runJobCli = createRunJobCliWithoutVerboseAssertion();
+      runJobCli.run(params);
+    } catch (IOException e) {
+      assertTrue(e.getMessage()
+          .contains("104857600 exceeds configured max size:10485760"));
+      // we shouldn't do any download because fail fast
+      verifyRdmCopyToRemoteLocalCalls(0);
+    }
+
+    try {
+      String[] params = createCommonParamsBuilder()
+          .withLocalization(localFile1.getAbsolutePath(), containerLocal3)
+          .build();
+      RunJobCli runJobCli = createRunJobCliWithoutVerboseAssertion();
+      runJobCli.run(params);
+    } catch (IOException e) {
+      assertTrue(e.getMessage()
+          .contains("104857600 exceeds configured max size:10485760"));
+      // we shouldn't do any download because fail fast
+      verifyRdmCopyToRemoteLocalCalls(0);
+    }
+  }
+
+  /**
+   * Test remote Uri doesn't exist.
+   * */
+  @Test
+  public void testRunJobWithNonExistRemoteUri() throws Exception {
+    String remoteUri1 = "hdfs:///a/b/1.patch";
+    String containerLocal1 = ".";
+    String localUri1 = "/a/b/c";
+    String containerLocal2 = "./";
+
+    try {
+      String[] params = createCommonParamsBuilder()
+          .withLocalization(remoteUri1, containerLocal1)
+          .build();
+      RunJobCli runJobCli = createRunJobCli();
+      runJobCli.run(params);
+    } catch (IOException e) {
+      assertTrue(e.getMessage().contains("doesn't exists"));
+    }
+
+    try {
+      String[] params = createCommonParamsBuilder()
+          .withLocalization(localUri1, containerLocal2)
+          .build();
+      RunJobCli runJobCli = createRunJobCliWithoutVerboseAssertion();
+      runJobCli.run(params);
+    } catch (IOException e) {
+      assertTrue(e.getMessage().contains("doesn't exists"));
+    }
+  }
+
+  /**
+   * Test local dir
+   * --localization /user/yarn/mydir:./mydir1
+   * --localization /user/yarn/mydir2:/opt/dir2:rw
+   * --localization /user/yarn/mydir2:.
+   */
+  @Test
+  public void testRunJobWithLocalDirLocalization() throws Exception {
+    String localUrl = "/user/yarn/mydir";
+    String containerPath = "./mydir1";
+    String localUrl2 = "/user/yarn/mydir2";
+    String containerPath2 = "/opt/dir2";
+    String containerPath3 = ".";
+
+    // create local file
+    File localDir1 = testCommons.getFileUtils().createDirInTempDir(localUrl);
+    testCommons.getFileUtils().createFileInDir(localDir1, "1.py");
+    testCommons.getFileUtils().createFileInDir(localDir1, "2.py");
+
+    File localDir2 = testCommons.getFileUtils().createDirInTempDir(localUrl2);
+    testCommons.getFileUtils().createFileInDir(localDir2, "3.py");
+    testCommons.getFileUtils().createFileInDir(localDir2, "4.py");
+
+    String suffix1 = "_" + localDir1.lastModified()
+        + "-" + localDir1.length();
+    String suffix2 = "_" + localDir2.lastModified()
+        + "-" + localDir2.length();
+
+    String[] params = createCommonParamsBuilder()
+        .withLocalization(localDir1.getAbsolutePath(), containerPath)
+        .withLocalization(localDir2.getAbsolutePath(), containerPath2)
+        .withLocalization(localDir2.getAbsolutePath(), containerPath3)
+        .build();
+    RunJobCli runJobCli = createRunJobCli();
+    runJobCli.run(params);
+
+    Service serviceSpec = testCommons.getServiceSpecFromJobSubmitter(
+        runJobCli.getJobSubmitter());
+    assertNumberOfServiceComponents(serviceSpec, 3);
+
+    // we shouldn't do any download
+    verifyRdmCopyToRemoteLocalCalls(0);
+
+    // Ensure local original files are not deleted
+    assertTrue(localDir1.exists());
+    assertTrue(localDir2.exists());
+
+    // Ensure zip file are deleted
+    assertFalse(
+        testCommons.getFileUtils()
+            .getTempFileWithName(localUrl + suffix1 + ZIP_EXTENSION)
+            .exists());
+    assertFalse(
+        testCommons.getFileUtils()
+            .getTempFileWithName(localUrl2 + suffix2 + ZIP_EXTENSION)
+            .exists());
+
+    // Ensure dirs will be zipped and localized
+    List<ConfigFile> files = serviceSpec.getConfiguration().getFiles();
+    assertNumberOfLocalizations(files, 3);
+
+    Path stagingDir = getStagingDir();
+    ConfigFile expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, localUrl, suffix1 + ZIP_EXTENSION));
+    expectedConfigFile.setDestFile(new Path(containerPath).getName());
+    assertConfigFile(expectedConfigFile, files.get(0));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, localUrl2, suffix2 + ZIP_EXTENSION));
+    expectedConfigFile.setDestFile(new Path(containerPath2).getName());
+    assertConfigFile(expectedConfigFile, files.get(1));
+
+    expectedConfigFile = new ConfigFile();
+    expectedConfigFile.setType(ConfigFile.TypeEnum.ARCHIVE);
+    expectedConfigFile.setSrcFile(
+        getFilePathWithSuffix(stagingDir, localUrl2, suffix2 + ZIP_EXTENSION));
+    expectedConfigFile.setDestFile(new Path(localUrl2).getName());
+    assertConfigFile(expectedConfigFile, files.get(2));
+
+    // Ensure mounts env value is correct
+    String env = serviceSpec.getConfiguration().getEnv()
+        .get("YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS");
+    String expectedMounts = new Path(containerPath2).getName()
+        + ":" + containerPath2 + ":rw";
+
+    assertTrue(env.contains(expectedMounts));
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/TestServiceWrapper.java

@@ -0,0 +1,95 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice;
+
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.junit.Test;
+
+import java.io.IOException;
+
+import static org.junit.Assert.*;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * Class to test the {@link ServiceWrapper}.
+ */
+public class TestServiceWrapper {
+  private AbstractComponent createMockAbstractComponent(Component mockComponent,
+      String componentName, String localScriptFile) throws IOException {
+    when(mockComponent.getName()).thenReturn(componentName);
+
+    AbstractComponent mockAbstractComponent = mock(AbstractComponent.class);
+    when(mockAbstractComponent.createComponent()).thenReturn(mockComponent);
+    when(mockAbstractComponent.getLocalScriptFile())
+        .thenReturn(localScriptFile);
+    return mockAbstractComponent;
+  }
+
+  @Test
+  public void testWithSingleComponent() throws IOException {
+    Service mockService = mock(Service.class);
+    ServiceWrapper serviceWrapper = new ServiceWrapper(mockService);
+
+    Component mockComponent = mock(Component.class);
+    AbstractComponent mockAbstractComponent =
+        createMockAbstractComponent(mockComponent, "testComponent",
+            "testLocalScriptFile");
+    serviceWrapper.addComponent(mockAbstractComponent);
+
+    verify(mockService).addComponent(eq(mockComponent));
+
+    String launchCommand =
+        serviceWrapper.getLocalLaunchCommandPathForComponent("testComponent");
+    assertEquals("testLocalScriptFile", launchCommand);
+  }
+
+  @Test
+  public void testWithMultipleComponent() throws IOException {
+    Service mockService = mock(Service.class);
+    ServiceWrapper serviceWrapper = new ServiceWrapper(mockService);
+
+    Component mockComponent1 = mock(Component.class);
+    AbstractComponent mockAbstractComponent1 =
+        createMockAbstractComponent(mockComponent1, "testComponent1",
+            "testLocalScriptFile1");
+
+    Component mockComponent2 = mock(Component.class);
+    AbstractComponent mockAbstractComponent2 =
+        createMockAbstractComponent(mockComponent2, "testComponent2",
+            "testLocalScriptFile2");
+
+    serviceWrapper.addComponent(mockAbstractComponent1);
+    serviceWrapper.addComponent(mockAbstractComponent2);
+
+    verify(mockService).addComponent(eq(mockComponent1));
+    verify(mockService).addComponent(eq(mockComponent2));
+
+    String launchCommand1 =
+        serviceWrapper.getLocalLaunchCommandPathForComponent("testComponent1");
+    assertEquals("testLocalScriptFile1", launchCommand1);
+
+    String launchCommand2 =
+        serviceWrapper.getLocalLaunchCommandPathForComponent("testComponent2");
+    assertEquals("testLocalScriptFile2", launchCommand2);
+  }
+
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/TestTFConfigGenerator.java

@@ -14,26 +14,30 @@
 
 package org.apache.hadoop.yarn.submarine.runtimes.yarnservice;
 
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.TensorFlowCommons;
 import org.codehaus.jettison.json.JSONException;
 import org.junit.Assert;
 import org.junit.Test;
 
+/**
+ * Class to test some functionality of {@link TensorFlowCommons}.
+ */
 public class TestTFConfigGenerator {
   @Test
   public void testSimpleDistributedTFConfigGenerator() throws JSONException {
-    String json = YarnServiceUtils.getTFConfigEnv("worker", 5, 3, "wtan",
+    String json = TensorFlowCommons.getTFConfigEnv("worker", 5, 3, "wtan",
         "tf-job-001", "example.com");
     String expected =
         "{\\\"cluster\\\":{\\\"master\\\":[\\\"master-0.wtan.tf-job-001.example.com:8000\\\"],\\\"worker\\\":[\\\"worker-0.wtan.tf-job-001.example.com:8000\\\",\\\"worker-1.wtan.tf-job-001.example.com:8000\\\",\\\"worker-2.wtan.tf-job-001.example.com:8000\\\",\\\"worker-3.wtan.tf-job-001.example.com:8000\\\"],\\\"ps\\\":[\\\"ps-0.wtan.tf-job-001.example.com:8000\\\",\\\"ps-1.wtan.tf-job-001.example.com:8000\\\",\\\"ps-2.wtan.tf-job-001.example.com:8000\\\"]},\\\"task\\\":{ \\\"type\\\":\\\"worker\\\", \\\"index\\\":$_TASK_INDEX},\\\"environment\\\":\\\"cloud\\\"}";
     Assert.assertEquals(expected, json);
 
-    json = YarnServiceUtils.getTFConfigEnv("ps", 5, 3, "wtan", "tf-job-001",
+    json = TensorFlowCommons.getTFConfigEnv("ps", 5, 3, "wtan", "tf-job-001",
         "example.com");
     expected =
         "{\\\"cluster\\\":{\\\"master\\\":[\\\"master-0.wtan.tf-job-001.example.com:8000\\\"],\\\"worker\\\":[\\\"worker-0.wtan.tf-job-001.example.com:8000\\\",\\\"worker-1.wtan.tf-job-001.example.com:8000\\\",\\\"worker-2.wtan.tf-job-001.example.com:8000\\\",\\\"worker-3.wtan.tf-job-001.example.com:8000\\\"],\\\"ps\\\":[\\\"ps-0.wtan.tf-job-001.example.com:8000\\\",\\\"ps-1.wtan.tf-job-001.example.com:8000\\\",\\\"ps-2.wtan.tf-job-001.example.com:8000\\\"]},\\\"task\\\":{ \\\"type\\\":\\\"ps\\\", \\\"index\\\":$_TASK_INDEX},\\\"environment\\\":\\\"cloud\\\"}";
     Assert.assertEquals(expected, json);
 
-    json = YarnServiceUtils.getTFConfigEnv("master", 2, 1, "wtan", "tf-job-001",
+    json = TensorFlowCommons.getTFConfigEnv("master", 2, 1, "wtan", "tf-job-001",
         "example.com");
     expected =
         "{\\\"cluster\\\":{\\\"master\\\":[\\\"master-0.wtan.tf-job-001.example.com:8000\\\"],\\\"worker\\\":[\\\"worker-0.wtan.tf-job-001.example.com:8000\\\"],\\\"ps\\\":[\\\"ps-0.wtan.tf-job-001.example.com:8000\\\"]},\\\"task\\\":{ \\\"type\\\":\\\"master\\\", \\\"index\\\":$_TASK_INDEX},\\\"environment\\\":\\\"cloud\\\"}";

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/command/AbstractLaunchCommandTestHelper.java

@@ -0,0 +1,190 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.command;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.MockClientContext;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorBoardLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorFlowPsLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorFlowWorkerLaunchCommand;
+import org.junit.Rule;
+import org.junit.rules.ExpectedException;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.List;
+
+import static junit.framework.TestCase.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+/**
+ * This class is an abstract base class for testing Tensorboard and TensorFlow
+ * launch commands.
+ */
+public abstract class AbstractLaunchCommandTestHelper {
+  private TaskType taskType;
+  private boolean useTaskTypeOverride;
+
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+
+  private void assertScriptContainsExportedEnvVar(List<String> fileContents,
+      String varName) {
+    String expected = String.format("export %s=", varName);
+    assertScriptContainsLine(fileContents, expected);
+  }
+
+  public static void assertScriptContainsExportedEnvVarWithValue(
+      List<String> fileContents, String varName, String value) {
+    String expected = String.format("export %s=%s", varName, value);
+    assertScriptContainsLine(fileContents, expected);
+  }
+
+  public static void assertScriptContainsLine(List<String> fileContents,
+      String expected) {
+    String message = String.format(
+        "File does not contain expected line '%s'!" + " File contents: %s",
+        expected, Arrays.toString(fileContents.toArray()));
+    assertTrue(message, fileContents.contains(expected));
+  }
+
+  public static void assertScriptContainsLineWithRegex(
+      List<String> fileContents,
+      String regex) {
+    String message = String.format(
+        "File does not contain expected line '%s'!" + " File contents: %s",
+        regex, Arrays.toString(fileContents.toArray()));
+
+    for (String line : fileContents) {
+      if (line.matches(regex)) {
+        return;
+      }
+    }
+    fail(message);
+  }
+
+  public static void assertScriptDoesNotContainLine(List<String> fileContents,
+      String expected) {
+    String message = String.format(
+        "File contains unexpected line '%s'!" + " File contents: %s",
+        expected, Arrays.toString(fileContents.toArray()));
+    assertFalse(message, fileContents.contains(expected));
+  }
+
+
+  private AbstractLaunchCommand createLaunchCommandByTaskType(TaskType taskType,
+      RunJobParameters params) throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    HadoopEnvironmentSetup hadoopEnvSetup =
+        new HadoopEnvironmentSetup(mockClientContext, fsOperations);
+    Component component = new Component();
+    Configuration yarnConfig = new Configuration();
+
+    return createLaunchCommandByTaskTypeInternal(taskType, params,
+        hadoopEnvSetup, component, yarnConfig);
+  }
+
+  private AbstractLaunchCommand createLaunchCommandByTaskTypeInternal(
+      TaskType taskType, RunJobParameters params,
+      HadoopEnvironmentSetup hadoopEnvSetup, Component component,
+      Configuration yarnConfig)
+      throws IOException {
+    if (taskType == TaskType.TENSORBOARD) {
+      return new TensorBoardLaunchCommand(
+          hadoopEnvSetup, getTaskType(taskType), component, params);
+    } else if (taskType == TaskType.WORKER
+        || taskType == TaskType.PRIMARY_WORKER) {
+      return new TensorFlowWorkerLaunchCommand(
+          hadoopEnvSetup, getTaskType(taskType), component, params, yarnConfig);
+    } else if (taskType == TaskType.PS) {
+      return new TensorFlowPsLaunchCommand(
+          hadoopEnvSetup, getTaskType(taskType), component, params, yarnConfig);
+    }
+    throw new IllegalStateException("Unknown taskType!");
+  }
+
+  public void overrideTaskType(TaskType taskType) {
+    this.taskType = taskType;
+    this.useTaskTypeOverride = true;
+  }
+
+  private TaskType getTaskType(TaskType taskType) {
+    if (useTaskTypeOverride) {
+      return this.taskType;
+    }
+    return taskType;
+  }
+
+  public void testHdfsRelatedEnvironmentIsUndefined(TaskType taskType,
+      RunJobParameters params) throws IOException {
+    AbstractLaunchCommand launchCommand =
+        createLaunchCommandByTaskType(taskType, params);
+
+    expectedException.expect(IOException.class);
+    expectedException
+        .expectMessage("Failed to detect HDFS-related environments.");
+    launchCommand.generateLaunchScript();
+  }
+
+  public List<String> testHdfsRelatedEnvironmentIsDefined(TaskType taskType,
+      RunJobParameters params) throws IOException {
+    AbstractLaunchCommand launchCommand =
+        createLaunchCommandByTaskType(taskType, params);
+
+    String result = launchCommand.generateLaunchScript();
+    assertNotNull(result);
+    File resultFile = new File(result);
+    assertTrue(resultFile.exists());
+
+    List<String> fileContents = Files.readAllLines(
+        Paths.get(resultFile.toURI()),
+        Charset.forName("UTF-8"));
+
+    assertEquals("#!/bin/bash", fileContents.get(0));
+    assertScriptContainsExportedEnvVar(fileContents, "HADOOP_HOME");
+    assertScriptContainsExportedEnvVar(fileContents, "HADOOP_YARN_HOME");
+    assertScriptContainsExportedEnvVarWithValue(fileContents,
+        "HADOOP_HDFS_HOME", "testHdfsHome");
+    assertScriptContainsExportedEnvVarWithValue(fileContents,
+        "HADOOP_COMMON_HOME", "testHdfsHome");
+    assertScriptContainsExportedEnvVarWithValue(fileContents, "HADOOP_CONF_DIR",
+        "$WORK_DIR");
+    assertScriptContainsExportedEnvVarWithValue(fileContents, "JAVA_HOME",
+        "testJavaHome");
+    assertScriptContainsExportedEnvVarWithValue(fileContents, "LD_LIBRARY_PATH",
+        "$LD_LIBRARY_PATH:$JAVA_HOME/lib/amd64/server");
+    assertScriptContainsExportedEnvVarWithValue(fileContents, "CLASSPATH",
+        "`$HADOOP_HDFS_HOME/bin/hadoop classpath --glob`");
+
+    return fileContents;
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/command/TestLaunchCommandFactory.java

@@ -0,0 +1,97 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.command;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorBoardLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorFlowPsLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command.TensorFlowWorkerLaunchCommand;
+import org.junit.Test;
+
+import java.io.IOException;
+
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+
+/**
+ * This class is to test the {@link LaunchCommandFactory}.
+ */
+public class TestLaunchCommandFactory {
+
+  private LaunchCommandFactory createLaunchCommandFactory(
+      RunJobParameters parameters) {
+    HadoopEnvironmentSetup hadoopEnvSetup = mock(HadoopEnvironmentSetup.class);
+    Configuration configuration = mock(Configuration.class);
+    return new LaunchCommandFactory(hadoopEnvSetup, parameters, configuration);
+  }
+
+  @Test
+  public void createLaunchCommandWorkerAndPrimaryWorker() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerLaunchCmd("testWorkerLaunchCommand");
+    LaunchCommandFactory launchCommandFactory = createLaunchCommandFactory(
+        parameters);
+    Component mockComponent = mock(Component.class);
+
+    AbstractLaunchCommand launchCommand =
+        launchCommandFactory.createLaunchCommand(TaskType.PRIMARY_WORKER,
+            mockComponent);
+
+    assertTrue(launchCommand instanceof TensorFlowWorkerLaunchCommand);
+
+    launchCommand =
+        launchCommandFactory.createLaunchCommand(TaskType.WORKER,
+            mockComponent);
+    assertTrue(launchCommand instanceof TensorFlowWorkerLaunchCommand);
+
+  }
+
+  @Test
+  public void createLaunchCommandPs() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setPSLaunchCmd("testPSLaunchCommand");
+    LaunchCommandFactory launchCommandFactory = createLaunchCommandFactory(
+        parameters);
+    Component mockComponent = mock(Component.class);
+
+    AbstractLaunchCommand launchCommand =
+        launchCommandFactory.createLaunchCommand(TaskType.PS,
+            mockComponent);
+
+    assertTrue(launchCommand instanceof TensorFlowPsLaunchCommand);
+  }
+
+  @Test
+  public void createLaunchCommandTensorboard() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setCheckpointPath("testCheckpointPath");
+    LaunchCommandFactory launchCommandFactory =
+        createLaunchCommandFactory(parameters);
+    Component mockComponent = mock(Component.class);
+
+    AbstractLaunchCommand launchCommand =
+        launchCommandFactory.createLaunchCommand(TaskType.TENSORBOARD,
+            mockComponent);
+
+    assertTrue(launchCommand instanceof TensorBoardLaunchCommand);
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/TestTensorBoardLaunchCommand.java

@@ -0,0 +1,104 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;
+
+import com.google.common.collect.ImmutableList;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.MockClientContext;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.AbstractLaunchCommandTestHelper;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.util.List;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup.DOCKER_HADOOP_HDFS_HOME;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup.DOCKER_JAVA_HOME;
+
+/**
+ * This class is to test the {@link TensorBoardLaunchCommand}.
+ */
+public class TestTensorBoardLaunchCommand extends
+    AbstractLaunchCommandTestHelper {
+
+  @Test
+  public void testHdfsRelatedEnvironmentIsUndefined() throws IOException {
+    RunJobParameters params = new RunJobParameters();
+    params.setInputPath("hdfs://bla");
+    params.setName("testJobname");
+    params.setCheckpointPath("something");
+
+    testHdfsRelatedEnvironmentIsUndefined(TaskType.TENSORBOARD,
+        params);
+  }
+
+  @Test
+  public void testHdfsRelatedEnvironmentIsDefined() throws IOException {
+    RunJobParameters params = new RunJobParameters();
+    params.setName("testName");
+    params.setCheckpointPath("testCheckpointPath");
+    params.setInputPath("hdfs://bla");
+    params.setEnvars(ImmutableList.of(
+        DOCKER_HADOOP_HDFS_HOME + "=" + "testHdfsHome",
+        DOCKER_JAVA_HOME + "=" + "testJavaHome"));
+
+    List<String> fileContents =
+        testHdfsRelatedEnvironmentIsDefined(TaskType.TENSORBOARD,
+            params);
+    assertScriptContainsExportedEnvVarWithValue(fileContents, "LC_ALL",
+        "C && tensorboard --logdir=testCheckpointPath");
+  }
+
+  @Test
+  public void testCheckpointPathUndefined() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    HadoopEnvironmentSetup hadoopEnvSetup =
+        new HadoopEnvironmentSetup(mockClientContext, fsOperations);
+
+    Component component = new Component();
+    RunJobParameters params = new RunJobParameters();
+    params.setCheckpointPath(null);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("CheckpointPath must not be null");
+    new TensorBoardLaunchCommand(hadoopEnvSetup, TaskType.TENSORBOARD,
+            component, params);
+  }
+
+  @Test
+  public void testCheckpointPathEmptyString() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    HadoopEnvironmentSetup hadoopEnvSetup =
+        new HadoopEnvironmentSetup(mockClientContext, fsOperations);
+
+    Component component = new Component();
+    RunJobParameters params = new RunJobParameters();
+    params.setCheckpointPath("");
+
+    expectedException.expect(IllegalArgumentException.class);
+    expectedException.expectMessage("CheckpointPath must not be empty");
+    new TensorBoardLaunchCommand(hadoopEnvSetup, TaskType.TENSORBOARD,
+        component, params);
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/command/TestTensorFlowLaunchCommand.java

@@ -0,0 +1,251 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.command;
+
+import com.google.common.collect.ImmutableList;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.MockClientContext;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.AbstractLaunchCommandTestHelper;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup.DOCKER_HADOOP_HDFS_HOME;
+import static org.apache.hadoop.yarn.submarine.runtimes.yarnservice.HadoopEnvironmentSetup.DOCKER_JAVA_HOME;
+
+/**
+ * This class is to test the implementors of {@link TensorFlowLaunchCommand}.
+ */
+@RunWith(Parameterized.class)
+public class TestTensorFlowLaunchCommand
+    extends AbstractLaunchCommandTestHelper {
+  private TaskType taskType;
+
+  @Parameterized.Parameters
+  public static Collection<Object[]> data() {
+    Collection<Object[]> params = new ArrayList<>();
+    params.add(new Object[]{TaskType.WORKER });
+    params.add(new Object[]{TaskType.PS });
+    return params;
+  }
+
+  public TestTensorFlowLaunchCommand(TaskType taskType) {
+    this.taskType = taskType;
+  }
+
+
+  private void assertScriptContainsLaunchCommand(List<String> fileContents,
+      RunJobParameters params) {
+    String launchCommand = null;
+    if (taskType == TaskType.WORKER) {
+      launchCommand = params.getWorkerLaunchCmd();
+    } else if (taskType == TaskType.PS) {
+      launchCommand = params.getPSLaunchCmd();
+    }
+    assertScriptContainsLine(fileContents, launchCommand);
+  }
+
+  private void setLaunchCommandToParams(RunJobParameters params) {
+    if (taskType == TaskType.WORKER) {
+      params.setWorkerLaunchCmd("testWorkerLaunchCommand");
+    } else if (taskType == TaskType.PS) {
+      params.setPSLaunchCmd("testPsLaunchCommand");
+    }
+  }
+
+  private void setLaunchCommandToParams(RunJobParameters params, String value) {
+    if (taskType == TaskType.WORKER) {
+      params.setWorkerLaunchCmd(value);
+    } else if (taskType == TaskType.PS) {
+      params.setPSLaunchCmd(value);
+    }
+  }
+
+  private void assertTypeInJson(List<String> fileContents) {
+    String expectedType = null;
+    if (taskType == TaskType.WORKER) {
+      expectedType = "worker";
+    } else if (taskType == TaskType.PS) {
+      expectedType = "ps";
+    }
+    assertScriptContainsLineWithRegex(fileContents, String.format(".*type.*:" +
+        ".*%s.*", expectedType));
+  }
+
+  private TensorFlowLaunchCommand createTensorFlowLaunchCommandObject(
+      HadoopEnvironmentSetup hadoopEnvSetup, Configuration yarnConfig,
+      Component component, RunJobParameters params) throws IOException {
+    if (taskType == TaskType.WORKER) {
+      return new TensorFlowWorkerLaunchCommand(hadoopEnvSetup, taskType,
+          component,
+          params, yarnConfig);
+    } else if (taskType == TaskType.PS) {
+      return new TensorFlowPsLaunchCommand(hadoopEnvSetup, taskType, component,
+          params, yarnConfig);
+    }
+    throw new IllegalStateException("Unknown tasktype!");
+  }
+
+  @Test
+  public void testHdfsRelatedEnvironmentIsUndefined() throws IOException {
+    RunJobParameters params = new RunJobParameters();
+    params.setInputPath("hdfs://bla");
+    params.setName("testJobname");
+    setLaunchCommandToParams(params);
+
+    testHdfsRelatedEnvironmentIsUndefined(taskType, params);
+  }
+
+  @Test
+  public void testHdfsRelatedEnvironmentIsDefined() throws IOException {
+    RunJobParameters params = new RunJobParameters();
+    params.setName("testName");
+    params.setInputPath("hdfs://bla");
+    params.setEnvars(ImmutableList.of(
+        DOCKER_HADOOP_HDFS_HOME + "=" + "testHdfsHome",
+        DOCKER_JAVA_HOME + "=" + "testJavaHome"));
+    setLaunchCommandToParams(params);
+
+    List<String> fileContents =
+        testHdfsRelatedEnvironmentIsDefined(taskType,
+            params);
+    assertScriptContainsLaunchCommand(fileContents, params);
+    assertScriptDoesNotContainLine(fileContents, "export TF_CONFIG=");
+  }
+
+  @Test
+  public void testLaunchCommandIsNull() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    HadoopEnvironmentSetup hadoopEnvSetup =
+        new HadoopEnvironmentSetup(mockClientContext, fsOperations);
+    Configuration yarnConfig = new Configuration();
+
+    Component component = new Component();
+    RunJobParameters params = new RunJobParameters();
+    params.setName("testName");
+    setLaunchCommandToParams(params, null);
+
+    expectedException.expect(IllegalArgumentException.class);
+    expectedException.expectMessage("LaunchCommand must not be null or empty");
+    TensorFlowLaunchCommand launchCommand =
+        createTensorFlowLaunchCommandObject(hadoopEnvSetup, yarnConfig,
+            component,
+        params);
+    launchCommand.generateLaunchScript();
+  }
+
+  @Test
+  public void testLaunchCommandIsEmpty() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    HadoopEnvironmentSetup hadoopEnvSetup =
+        new HadoopEnvironmentSetup(mockClientContext, fsOperations);
+    Configuration yarnConfig = new Configuration();
+
+    Component component = new Component();
+    RunJobParameters params = new RunJobParameters();
+    params.setName("testName");
+    setLaunchCommandToParams(params, "");
+
+    expectedException.expect(IllegalArgumentException.class);
+    expectedException.expectMessage("LaunchCommand must not be null or empty");
+    TensorFlowLaunchCommand launchCommand =
+        createTensorFlowLaunchCommandObject(hadoopEnvSetup, yarnConfig,
+            component, params);
+    launchCommand.generateLaunchScript();
+  }
+
+  @Test
+  public void testDistributedTrainingMissingTaskType() throws IOException {
+    overrideTaskType(null);
+
+    RunJobParameters params = new RunJobParameters();
+    params.setDistributed(true);
+    params.setName("testName");
+    params.setInputPath("hdfs://bla");
+    params.setEnvars(ImmutableList.of(
+        DOCKER_HADOOP_HDFS_HOME + "=" + "testHdfsHome",
+        DOCKER_JAVA_HOME + "=" + "testJavaHome"));
+    setLaunchCommandToParams(params);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("TaskType must not be null");
+    testHdfsRelatedEnvironmentIsDefined(taskType, params);
+  }
+
+  @Test
+  public void testDistributedTrainingNumberOfWorkersAndPsIsZero()
+      throws IOException {
+    RunJobParameters params = new RunJobParameters();
+    params.setDistributed(true);
+    params.setNumWorkers(0);
+    params.setNumPS(0);
+    params.setName("testName");
+    params.setInputPath("hdfs://bla");
+    params.setEnvars(ImmutableList.of(
+        DOCKER_HADOOP_HDFS_HOME + "=" + "testHdfsHome",
+        DOCKER_JAVA_HOME + "=" + "testJavaHome"));
+    setLaunchCommandToParams(params);
+
+    List<String> fileContents =
+        testHdfsRelatedEnvironmentIsDefined(taskType, params);
+
+    assertScriptDoesNotContainLine(fileContents, "export TF_CONFIG=");
+    assertScriptContainsLineWithRegex(fileContents, ".*worker.*:\\[\\].*");
+    assertScriptContainsLineWithRegex(fileContents, ".*ps.*:\\[\\].*");
+    assertTypeInJson(fileContents);
+  }
+
+  @Test
+  public void testDistributedTrainingNumberOfWorkersAndPsIsNonZero()
+      throws IOException {
+    RunJobParameters params = new RunJobParameters();
+    params.setDistributed(true);
+    params.setNumWorkers(3);
+    params.setNumPS(2);
+    params.setName("testName");
+    params.setInputPath("hdfs://bla");
+    params.setEnvars(ImmutableList.of(
+        DOCKER_HADOOP_HDFS_HOME + "=" + "testHdfsHome",
+        DOCKER_JAVA_HOME + "=" + "testJavaHome"));
+    setLaunchCommandToParams(params);
+
+    List<String> fileContents =
+        testHdfsRelatedEnvironmentIsDefined(taskType, params);
+
+    //assert we have multiple PS and workers
+    assertScriptDoesNotContainLine(fileContents, "export TF_CONFIG=");
+    assertScriptContainsLineWithRegex(fileContents, ".*worker.*:\\[.*,.*\\].*");
+    assertScriptContainsLineWithRegex(fileContents, ".*ps.*:\\[.*,.*\\].*");
+    assertTypeInJson(fileContents);
+  }
+
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/ComponentTestCommons.java

@@ -0,0 +1,90 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.service.api.ServiceApiConstants;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.submarine.common.Envs;
+import org.apache.hadoop.yarn.submarine.common.MockClientContext;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.AbstractLaunchCommand;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.command.LaunchCommandFactory;
+
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * This class has some helper methods and fields
+ * in order to test TensorFlow-related Components easier.
+ */
+public class ComponentTestCommons {
+  String userName;
+  TaskType taskType;
+  LaunchCommandFactory mockLaunchCommandFactory;
+  FileSystemOperations fsOperations;
+  MockClientContext mockClientContext;
+  Configuration yarnConfig;
+  Resource resource;
+
+  ComponentTestCommons(TaskType taskType) {
+    this.taskType = taskType;
+  }
+
+  public void setup() throws IOException {
+    this.userName = System.getProperty("user.name");
+    this.resource = Resource.newInstance(4000, 10);
+    setupDependencies();
+  }
+
+  private void setupDependencies() throws IOException {
+    fsOperations = mock(FileSystemOperations.class);
+    mockClientContext = new MockClientContext();
+    mockLaunchCommandFactory = mock(LaunchCommandFactory.class);
+
+    AbstractLaunchCommand mockLaunchCommand = mock(AbstractLaunchCommand.class);
+    when(mockLaunchCommand.generateLaunchScript()).thenReturn("mockScript");
+    when(mockLaunchCommandFactory.createLaunchCommand(eq(taskType),
+        any(Component.class))).thenReturn(mockLaunchCommand);
+
+    yarnConfig = new Configuration();
+  }
+
+  void verifyCommonConfigEnvs(Component component) {
+    assertNotNull(component.getConfiguration().getEnv());
+    assertEquals(2, component.getConfiguration().getEnv().size());
+    assertEquals(ServiceApiConstants.COMPONENT_ID,
+        component.getConfiguration().getEnv().get(Envs.TASK_INDEX_ENV));
+    assertEquals(taskType.name(),
+        component.getConfiguration().getEnv().get(Envs.TASK_TYPE_ENV));
+  }
+
+  void verifyResources(Component component) {
+    assertNotNull(component.getResource());
+    assertEquals(10, (int) component.getResource().getCpus());
+    assertEquals(4000,
+        (int) Integer.valueOf(component.getResource().getMemory()));
+  }
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/TestTensorBoardComponent.java

@@ -0,0 +1,125 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.Artifact;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Component.RestartPolicyEnum;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.verify;
+
+/**
+ * This class is to test {@link TensorBoardComponent}.
+ */
+public class TestTensorBoardComponent {
+
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+  private ComponentTestCommons testCommons =
+      new ComponentTestCommons(TaskType.TENSORBOARD);
+
+  @Before
+  public void setUp() throws IOException {
+    testCommons.setup();
+  }
+
+  private TensorBoardComponent createTensorBoardComponent(
+      RunJobParameters parameters) {
+    return new TensorBoardComponent(
+        testCommons.fsOperations,
+        testCommons.mockClientContext.getRemoteDirectoryManager(),
+        parameters,
+        testCommons.mockLaunchCommandFactory,
+        testCommons.yarnConfig);
+  }
+
+  @Test
+  public void testTensorBoardComponentWithNullResource() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setTensorboardResource(null);
+
+    TensorBoardComponent tensorBoardComponent =
+        createTensorBoardComponent(parameters);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("TensorBoard resource must not be null");
+    tensorBoardComponent.createComponent();
+  }
+
+  @Test
+  public void testTensorBoardComponentWithNullJobName() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setTensorboardResource(testCommons.resource);
+    parameters.setName(null);
+
+    TensorBoardComponent tensorBoardComponent =
+        createTensorBoardComponent(parameters);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("Job name must not be null");
+    tensorBoardComponent.createComponent();
+  }
+
+  @Test
+  public void testTensorBoardComponent() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setTensorboardResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setTensorboardDockerImage("testTBDockerImage");
+
+    TensorBoardComponent tensorBoardComponent =
+        createTensorBoardComponent(parameters);
+
+    Component component = tensorBoardComponent.createComponent();
+
+    assertEquals(testCommons.taskType.getComponentName(), component.getName());
+    testCommons.verifyCommonConfigEnvs(component);
+
+    assertEquals(1L, (long) component.getNumberOfContainers());
+    assertEquals(RestartPolicyEnum.NEVER, component.getRestartPolicy());
+    testCommons.verifyResources(component);
+    assertEquals(
+        new Artifact().type(Artifact.TypeEnum.DOCKER).id("testTBDockerImage"),
+        component.getArtifact());
+
+    assertEquals(String.format(
+        "http://tensorboard-0.testJobName.%s" + ".testDomain:6006",
+        testCommons.userName),
+        tensorBoardComponent.getTensorboardLink());
+
+    assertEquals("./run-TENSORBOARD.sh", component.getLaunchCommand());
+    verify(testCommons.fsOperations)
+        .uploadToRemoteFileAndLocalizeToContainerWorkDir(
+        any(Path.class), eq("mockScript"), eq("run-TENSORBOARD.sh"),
+        eq(component));
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/TestTensorFlowPsComponent.java

@@ -0,0 +1,166 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.verify;
+import java.io.IOException;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.Artifact;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Component.RestartPolicyEnum;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+/**
+ * This class is to test {@link TensorFlowPsComponent}.
+ */
+public class TestTensorFlowPsComponent {
+
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+  private ComponentTestCommons testCommons =
+      new ComponentTestCommons(TaskType.PS);
+
+  @Before
+  public void setUp() throws IOException {
+    testCommons.setup();
+  }
+
+  private TensorFlowPsComponent createPsComponent(RunJobParameters parameters) {
+    return new TensorFlowPsComponent(
+        testCommons.fsOperations,
+        testCommons.mockClientContext.getRemoteDirectoryManager(),
+        testCommons.mockLaunchCommandFactory,
+        parameters,
+        testCommons.yarnConfig);
+  }
+
+  private void verifyCommons(Component component) throws IOException {
+    assertEquals(testCommons.taskType.getComponentName(), component.getName());
+    testCommons.verifyCommonConfigEnvs(component);
+
+    assertTrue(component.getConfiguration().getProperties().isEmpty());
+
+    assertEquals(RestartPolicyEnum.NEVER, component.getRestartPolicy());
+    testCommons.verifyResources(component);
+    assertEquals(
+        new Artifact().type(Artifact.TypeEnum.DOCKER).id("testPSDockerImage"),
+        component.getArtifact());
+
+    String taskTypeUppercase = testCommons.taskType.name().toUpperCase();
+    String expectedScriptName = String.format("run-%s.sh", taskTypeUppercase);
+    assertEquals(String.format("./%s", expectedScriptName),
+        component.getLaunchCommand());
+    verify(testCommons.fsOperations)
+        .uploadToRemoteFileAndLocalizeToContainerWorkDir(
+        any(Path.class), eq("mockScript"), eq(expectedScriptName),
+        eq(component));
+  }
+
+  @Test
+  public void testPSComponentWithNullResource() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setPsResource(null);
+
+    TensorFlowPsComponent psComponent =
+        createPsComponent(parameters);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("PS resource must not be null");
+    psComponent.createComponent();
+  }
+
+  @Test
+  public void testPSComponentWithNullJobName() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setPsResource(testCommons.resource);
+    parameters.setNumPS(1);
+    parameters.setName(null);
+
+    TensorFlowPsComponent psComponent =
+        createPsComponent(parameters);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("Job name must not be null");
+    psComponent.createComponent();
+  }
+
+  @Test
+  public void testPSComponentZeroNumberOfPS() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setPsResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setPsDockerImage("testPSDockerImage");
+    parameters.setNumPS(0);
+
+    TensorFlowPsComponent psComponent =
+        createPsComponent(parameters);
+
+    expectedException.expect(IllegalArgumentException.class);
+    expectedException.expectMessage("Number of PS should be at least 1!");
+    psComponent.createComponent();
+  }
+
+  @Test
+  public void testPSComponentNumPSIsOne() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setPsResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setNumPS(1);
+    parameters.setPsDockerImage("testPSDockerImage");
+
+    TensorFlowPsComponent psComponent =
+        createPsComponent(parameters);
+
+    Component component = psComponent.createComponent();
+
+    assertEquals(1L, (long) component.getNumberOfContainers());
+    verifyCommons(component);
+  }
+
+  @Test
+  public void testPSComponentNumPSIsTwo() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setPsResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setNumPS(2);
+    parameters.setPsDockerImage("testPSDockerImage");
+
+    TensorFlowPsComponent psComponent =
+        createPsComponent(parameters);
+
+    Component component = psComponent.createComponent();
+
+    assertEquals(2L, (long) component.getNumberOfContainers());
+    verifyCommons(component);
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/runtimes/yarnservice/tensorflow/component/TestTensorFlowWorkerComponent.java

@@ -0,0 +1,215 @@
+/*
+ * 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.hadoop.yarn.submarine.runtimes.yarnservice.tensorflow.component;
+
+import com.google.common.collect.ImmutableMap;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.Artifact;
+import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Component.RestartPolicyEnum;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.api.TaskType;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import java.io.IOException;
+import java.util.Map;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.apache.hadoop.yarn.service.conf.YarnServiceConstants.CONTAINER_STATE_REPORT_AS_SERVICE_STATE;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.verify;
+
+/**
+ * This class is to test {@link TensorFlowWorkerComponent}.
+ */
+public class TestTensorFlowWorkerComponent {
+
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+  private ComponentTestCommons testCommons =
+      new ComponentTestCommons(TaskType.TENSORBOARD);
+
+  @Before
+  public void setUp() throws IOException {
+    testCommons.setup();
+  }
+
+  private TensorFlowWorkerComponent createWorkerComponent(
+      RunJobParameters parameters) {
+    return new TensorFlowWorkerComponent(
+        testCommons.fsOperations,
+        testCommons.mockClientContext.getRemoteDirectoryManager(),
+        parameters, testCommons.taskType,
+        testCommons.mockLaunchCommandFactory,
+        testCommons.yarnConfig);
+  }
+
+  private void verifyCommons(Component component) throws IOException {
+    verifyCommonsInternal(component, ImmutableMap.of());
+  }
+
+  private void verifyCommons(Component component,
+      Map<String, String> expectedProperties) throws IOException {
+    verifyCommonsInternal(component, expectedProperties);
+  }
+
+  private void verifyCommonsInternal(Component component,
+      Map<String, String> expectedProperties) throws IOException {
+    assertEquals(testCommons.taskType.getComponentName(), component.getName());
+    testCommons.verifyCommonConfigEnvs(component);
+
+    Map<String, String> actualProperties =
+        component.getConfiguration().getProperties();
+    if (!expectedProperties.isEmpty()) {
+      assertFalse(actualProperties.isEmpty());
+      expectedProperties.forEach(
+          (k, v) -> assertEquals(v, actualProperties.get(k)));
+    } else {
+      assertTrue(actualProperties.isEmpty());
+    }
+
+    assertEquals(RestartPolicyEnum.NEVER, component.getRestartPolicy());
+    testCommons.verifyResources(component);
+    assertEquals(
+        new Artifact().type(Artifact.TypeEnum.DOCKER)
+            .id("testWorkerDockerImage"),
+        component.getArtifact());
+
+    String taskTypeUppercase = testCommons.taskType.name().toUpperCase();
+    String expectedScriptName = String.format("run-%s.sh", taskTypeUppercase);
+    assertEquals(String.format("./%s", expectedScriptName),
+        component.getLaunchCommand());
+    verify(testCommons.fsOperations)
+        .uploadToRemoteFileAndLocalizeToContainerWorkDir(
+        any(Path.class), eq("mockScript"), eq(expectedScriptName),
+        eq(component));
+  }
+
+  @Test
+  public void testWorkerComponentWithNullResource() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerResource(null);
+
+    TensorFlowWorkerComponent workerComponent =
+        createWorkerComponent(parameters);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("Worker resource must not be null");
+    workerComponent.createComponent();
+  }
+
+  @Test
+  public void testWorkerComponentWithNullJobName() throws IOException {
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerResource(testCommons.resource);
+    parameters.setNumWorkers(1);
+    parameters.setName(null);
+
+    TensorFlowWorkerComponent workerComponent =
+        createWorkerComponent(parameters);
+
+    expectedException.expect(NullPointerException.class);
+    expectedException.expectMessage("Job name must not be null");
+    workerComponent.createComponent();
+  }
+
+  @Test
+  public void testNormalWorkerComponentZeroNumberOfWorkers()
+      throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setWorkerDockerImage("testWorkerDockerImage");
+    parameters.setNumWorkers(0);
+
+    TensorFlowWorkerComponent workerComponent =
+        createWorkerComponent(parameters);
+
+    expectedException.expect(IllegalArgumentException.class);
+    expectedException.expectMessage("Number of workers should be at least 1!");
+    workerComponent.createComponent();
+  }
+
+  @Test
+  public void testNormalWorkerComponentNumWorkersIsOne() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setNumWorkers(1);
+    parameters.setWorkerDockerImage("testWorkerDockerImage");
+
+    TensorFlowWorkerComponent workerComponent =
+        createWorkerComponent(parameters);
+
+    Component component = workerComponent.createComponent();
+
+    assertEquals(0L, (long) component.getNumberOfContainers());
+    verifyCommons(component);
+  }
+
+  @Test
+  public void testNormalWorkerComponentNumWorkersIsTwo() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setNumWorkers(2);
+    parameters.setWorkerDockerImage("testWorkerDockerImage");
+
+    TensorFlowWorkerComponent workerComponent =
+        createWorkerComponent(parameters);
+
+    Component component = workerComponent.createComponent();
+
+    assertEquals(1L, (long) component.getNumberOfContainers());
+    verifyCommons(component);
+  }
+
+  @Test
+  public void testPrimaryWorkerComponentNumWorkersIsTwo() throws IOException {
+    testCommons.yarnConfig.set("hadoop.registry.dns.domain-name", "testDomain");
+    testCommons = new ComponentTestCommons(TaskType.PRIMARY_WORKER);
+    testCommons.setup();
+
+    RunJobParameters parameters = new RunJobParameters();
+    parameters.setWorkerResource(testCommons.resource);
+    parameters.setName("testJobName");
+    parameters.setNumWorkers(2);
+    parameters.setWorkerDockerImage("testWorkerDockerImage");
+
+    TensorFlowWorkerComponent workerComponent =
+        createWorkerComponent(parameters);
+
+    Component component = workerComponent.createComponent();
+
+    assertEquals(1L, (long) component.getNumberOfContainers());
+    verifyCommons(component, ImmutableMap.of(
+        CONTAINER_STATE_REPORT_AS_SERVICE_STATE, "true"));
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/utils/TestClassPathUtilities.java

@@ -0,0 +1,91 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.hadoop.yarn.submarine.FileUtilitiesForTests;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+/**
+ * This class is to test {@link ClassPathUtilities}.
+ */
+public class TestClassPathUtilities {
+
+  private static final String CLASSPATH_KEY = "java.class.path";
+  private FileUtilitiesForTests fileUtils = new FileUtilitiesForTests();
+  private static String originalClasspath;
+
+  @BeforeClass
+  public static void setUpClass() {
+    originalClasspath = System.getProperty(CLASSPATH_KEY);
+  }
+
+  @Before
+  public void setUp() {
+    fileUtils.setup();
+  }
+
+  @After
+  public void teardown() throws IOException {
+    fileUtils.teardown();
+    System.setProperty(CLASSPATH_KEY, originalClasspath);
+  }
+
+  private static void addFileToClasspath(File file) {
+    String newClasspath = originalClasspath + ":" + file.getAbsolutePath();
+    System.setProperty(CLASSPATH_KEY, newClasspath);
+  }
+
+  @Test
+  public void findFileNotInClasspath() {
+    File resultFile = ClassPathUtilities.findFileOnClassPath("bla");
+    assertNull(resultFile);
+  }
+
+  @Test
+  public void findFileOnClasspath() throws Exception {
+    File testFile = fileUtils.createFileInTempDir("testFile");
+
+    addFileToClasspath(testFile);
+    File resultFile = ClassPathUtilities.findFileOnClassPath("testFile");
+
+    assertNotNull(resultFile);
+    assertEquals(testFile.getAbsolutePath(), resultFile.getAbsolutePath());
+  }
+
+  @Test
+  public void findDirectoryOnClasspath() throws Exception {
+    File testDir = fileUtils.createDirInTempDir("testDir");
+    File testFile = fileUtils.createFileInDir(testDir, "testFile");
+
+    addFileToClasspath(testDir);
+    File resultFile = ClassPathUtilities.findFileOnClassPath("testFile");
+
+    assertNotNull(resultFile);
+    assertEquals(testFile.getAbsolutePath(), resultFile.getAbsolutePath());
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/utils/TestEnvironmentUtilities.java

@@ -0,0 +1,231 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Maps;
+import org.apache.hadoop.yarn.service.api.records.Configuration;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.junit.Test;
+
+import java.util.Map;
+
+import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION;
+import static org.apache.hadoop.yarn.submarine.utils.EnvironmentUtilities.ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME;
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * This class is to test {@link EnvironmentUtilities}.
+ */
+public class TestEnvironmentUtilities {
+  private Service createServiceWithEmptyEnvVars() {
+    return createServiceWithEnvVars(Maps.newHashMap());
+  }
+
+  private Service createServiceWithEnvVars(Map<String, String> envVars) {
+    Service service = mock(Service.class);
+    Configuration config = mock(Configuration.class);
+    when(config.getEnv()).thenReturn(envVars);
+    when(service.getConfiguration()).thenReturn(config);
+
+    return service;
+  }
+
+  private void validateDefaultEnvVars(Map<String, String> resultEnvs) {
+    assertEquals("/etc/passwd:/etc/passwd:ro",
+        resultEnvs.get(ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME));
+  }
+
+  private org.apache.hadoop.conf.Configuration
+  createYarnConfigWithSecurityValue(String value) {
+    org.apache.hadoop.conf.Configuration mockConfig =
+        mock(org.apache.hadoop.conf.Configuration.class);
+    when(mockConfig.get(HADOOP_SECURITY_AUTHENTICATION)).thenReturn(value);
+    return mockConfig;
+  }
+
+  @Test
+  public void testGetValueOfNullEnvVar() {
+    assertEquals("", EnvironmentUtilities.getValueOfEnvironment(null));
+  }
+
+  @Test
+  public void testGetValueOfEmptyEnvVar() {
+    assertEquals("", EnvironmentUtilities.getValueOfEnvironment(""));
+  }
+
+  @Test
+  public void testGetValueOfEnvVarJustAnEqualsSign() {
+    assertEquals("", EnvironmentUtilities.getValueOfEnvironment("="));
+  }
+
+  @Test
+  public void testGetValueOfEnvVarWithoutValue() {
+    assertEquals("", EnvironmentUtilities.getValueOfEnvironment("a="));
+  }
+
+  @Test
+  public void testGetValueOfEnvVarValidFormat() {
+    assertEquals("bbb", EnvironmentUtilities.getValueOfEnvironment("a=bbb"));
+  }
+
+  @Test
+  public void testHandleServiceEnvWithNullMap() {
+    Service service = createServiceWithEmptyEnvVars();
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        mock(org.apache.hadoop.conf.Configuration.class);
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, null);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(1, resultEnvs.size());
+    validateDefaultEnvVars(resultEnvs);
+  }
+
+  @Test
+  public void testHandleServiceEnvWithEmptyMap() {
+    Service service = createServiceWithEmptyEnvVars();
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        mock(org.apache.hadoop.conf.Configuration.class);
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, null);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(1, resultEnvs.size());
+    validateDefaultEnvVars(resultEnvs);
+  }
+
+  @Test
+  public void testHandleServiceEnvWithYarnConfigSecurityValueNonKerberos() {
+    Service service = createServiceWithEmptyEnvVars();
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        createYarnConfigWithSecurityValue("nonkerberos");
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, null);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(1, resultEnvs.size());
+    validateDefaultEnvVars(resultEnvs);
+  }
+
+  @Test
+  public void testHandleServiceEnvWithYarnConfigSecurityValueKerberos() {
+    Service service = createServiceWithEmptyEnvVars();
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        createYarnConfigWithSecurityValue("kerberos");
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, null);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(1, resultEnvs.size());
+    assertEquals("/etc/passwd:/etc/passwd:ro,/etc/krb5.conf:/etc/krb5.conf:ro",
+        resultEnvs.get(ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME));
+  }
+
+  @Test
+  public void testHandleServiceEnvWithExistingEnvsAndValidNewEnvs() {
+    Map<String, String> existingEnvs = Maps.newHashMap(
+        ImmutableMap.<String, String>builder().
+            put("a", "1").
+            put("b", "2").
+            build());
+    ImmutableList<String> newEnvs = ImmutableList.of("c=3", "d=4");
+
+    Service service = createServiceWithEnvVars(existingEnvs);
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        createYarnConfigWithSecurityValue("kerberos");
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, newEnvs);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(5, resultEnvs.size());
+    assertEquals("/etc/passwd:/etc/passwd:ro,/etc/krb5.conf:/etc/krb5.conf:ro",
+        resultEnvs.get(ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME));
+    assertEquals("1", resultEnvs.get("a"));
+    assertEquals("2", resultEnvs.get("b"));
+    assertEquals("3", resultEnvs.get("c"));
+    assertEquals("4", resultEnvs.get("d"));
+  }
+
+  @Test
+  public void testHandleServiceEnvWithExistingEnvsAndNewEnvsWithoutEquals() {
+    Map<String, String> existingEnvs = Maps.newHashMap(
+        ImmutableMap.<String, String>builder().
+            put("a", "1").
+            put("b", "2").
+            build());
+    ImmutableList<String> newEnvs = ImmutableList.of("c3", "d4");
+
+    Service service = createServiceWithEnvVars(existingEnvs);
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        createYarnConfigWithSecurityValue("kerberos");
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, newEnvs);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(5, resultEnvs.size());
+    assertEquals("/etc/passwd:/etc/passwd:ro,/etc/krb5.conf:/etc/krb5.conf:ro",
+        resultEnvs.get(ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME));
+    assertEquals("1", resultEnvs.get("a"));
+    assertEquals("2", resultEnvs.get("b"));
+    assertEquals("", resultEnvs.get("c3"));
+    assertEquals("", resultEnvs.get("d4"));
+  }
+
+  @Test
+  public void testHandleServiceEnvWithExistingEnvVarKey() {
+    Map<String, String> existingEnvs = Maps.newHashMap(
+        ImmutableMap.<String, String>builder().
+            put("a", "1").
+            put("b", "2").
+            build());
+    ImmutableList<String> newEnvs = ImmutableList.of("a=33", "c=44");
+
+    Service service = createServiceWithEnvVars(existingEnvs);
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        createYarnConfigWithSecurityValue("kerberos");
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, newEnvs);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(4, resultEnvs.size());
+    assertEquals("/etc/passwd:/etc/passwd:ro,/etc/krb5.conf:/etc/krb5.conf:ro",
+        resultEnvs.get(ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME));
+    assertEquals("1:33", resultEnvs.get("a"));
+    assertEquals("2", resultEnvs.get("b"));
+    assertEquals("44", resultEnvs.get("c"));
+  }
+
+  @Test
+  public void testHandleServiceEnvWithExistingEnvVarKeyMultipleTimes() {
+    Map<String, String> existingEnvs = Maps.newHashMap(
+        ImmutableMap.<String, String>builder().
+            put("a", "1").
+            put("b", "2").
+            build());
+    ImmutableList<String> newEnvs = ImmutableList.of("a=33", "a=44");
+
+    Service service = createServiceWithEnvVars(existingEnvs);
+    org.apache.hadoop.conf.Configuration yarnConfig =
+        createYarnConfigWithSecurityValue("kerberos");
+    EnvironmentUtilities.handleServiceEnvs(service, yarnConfig, newEnvs);
+
+    Map<String, String> resultEnvs = service.getConfiguration().getEnv();
+    assertEquals(3, resultEnvs.size());
+    assertEquals("/etc/passwd:/etc/passwd:ro,/etc/krb5.conf:/etc/krb5.conf:ro",
+        resultEnvs.get(ENV_DOCKER_MOUNTS_FOR_CONTAINER_RUNTIME));
+    assertEquals("1:33:44", resultEnvs.get("a"));
+    assertEquals("2", resultEnvs.get("b"));
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/utils/TestKerberosPrincipalFactory.java

@@ -0,0 +1,156 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.yarn.service.api.records.KerberosPrincipal;
+import org.apache.hadoop.yarn.submarine.FileUtilitiesForTests;
+import org.apache.hadoop.yarn.submarine.client.cli.param.RunJobParameters;
+import org.apache.hadoop.yarn.submarine.common.MockClientContext;
+import org.apache.hadoop.yarn.submarine.runtimes.yarnservice.FileSystemOperations;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * This class is to test {@link KerberosPrincipalFactory}.
+ */
+public class TestKerberosPrincipalFactory {
+  private FileUtilitiesForTests fileUtils = new FileUtilitiesForTests();
+
+  @Before
+  public void setUp() {
+    fileUtils.setup();
+  }
+
+  @After
+  public void teardown() throws IOException {
+    fileUtils.teardown();
+  }
+
+  private File createKeytabFile(String keytabFileName) throws IOException {
+    return fileUtils.createFileInTempDir(keytabFileName);
+  }
+
+  @Test
+  public void testCreatePrincipalEmptyPrincipalAndKeytab() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+
+    RunJobParameters parameters = mock(RunJobParameters.class);
+    when(parameters.getPrincipal()).thenReturn("");
+    when(parameters.getKeytab()).thenReturn("");
+
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    KerberosPrincipal result =
+        KerberosPrincipalFactory.create(fsOperations,
+            mockClientContext.getRemoteDirectoryManager(), parameters);
+
+    assertNull(result);
+  }
+  @Test
+  public void testCreatePrincipalEmptyPrincipalString() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+
+    RunJobParameters parameters = mock(RunJobParameters.class);
+    when(parameters.getPrincipal()).thenReturn("");
+    when(parameters.getKeytab()).thenReturn("keytab");
+
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    KerberosPrincipal result =
+        KerberosPrincipalFactory.create(fsOperations,
+            mockClientContext.getRemoteDirectoryManager(), parameters);
+
+    assertNull(result);
+  }
+
+  @Test
+  public void testCreatePrincipalEmptyKeyTabString() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+
+    RunJobParameters parameters = mock(RunJobParameters.class);
+    when(parameters.getPrincipal()).thenReturn("principal");
+    when(parameters.getKeytab()).thenReturn("");
+
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    KerberosPrincipal result =
+        KerberosPrincipalFactory.create(fsOperations,
+            mockClientContext.getRemoteDirectoryManager(), parameters);
+
+    assertNull(result);
+  }
+
+  @Test
+  public void testCreatePrincipalNonEmptyPrincipalAndKeytab()
+      throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+
+    RunJobParameters parameters = mock(RunJobParameters.class);
+    when(parameters.getPrincipal()).thenReturn("principal");
+    when(parameters.getKeytab()).thenReturn("keytab");
+
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+    KerberosPrincipal result =
+        KerberosPrincipalFactory.create(fsOperations,
+            mockClientContext.getRemoteDirectoryManager(), parameters);
+
+    assertNotNull(result);
+    assertEquals("file://keytab", result.getKeytab());
+    assertEquals("principal", result.getPrincipalName());
+  }
+
+  @Test
+  public void testCreatePrincipalDistributedKeytab() throws IOException {
+    MockClientContext mockClientContext = new MockClientContext();
+    String jobname = "testJobname";
+    String keytab = "testKeytab";
+    File keytabFile = createKeytabFile(keytab);
+
+    RunJobParameters parameters = mock(RunJobParameters.class);
+    when(parameters.getPrincipal()).thenReturn("principal");
+    when(parameters.getKeytab()).thenReturn(keytabFile.getAbsolutePath());
+    when(parameters.getName()).thenReturn(jobname);
+    when(parameters.isDistributeKeytab()).thenReturn(true);
+
+    FileSystemOperations fsOperations =
+        new FileSystemOperations(mockClientContext);
+
+    KerberosPrincipal result =
+        KerberosPrincipalFactory.create(fsOperations,
+            mockClientContext.getRemoteDirectoryManager(), parameters);
+
+    Path stagingDir = mockClientContext.getRemoteDirectoryManager()
+        .getJobStagingArea(parameters.getName(), true);
+    String expectedKeytabFilePath =
+        FileUtilitiesForTests.getFilename(stagingDir, keytab).getAbsolutePath();
+
+    assertNotNull(result);
+    assertEquals(expectedKeytabFilePath, result.getKeytab());
+    assertEquals("principal", result.getPrincipalName());
+  }
+
+}

hadoop-submarine/hadoop-submarine-yarnservice-runtime/src/test/java/org/apache/hadoop/yarn/submarine/utils/TestSubmarineResourceUtils.java

@@ -0,0 +1,72 @@
+/*
+ * 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.hadoop.yarn.submarine.utils;
+
+import com.google.common.collect.ImmutableMap;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.service.api.records.ResourceInformation;
+import org.apache.hadoop.yarn.util.resource.CustomResourceTypesConfigurationProvider;
+import org.apache.hadoop.yarn.util.resource.ResourceUtils;
+import org.junit.After;
+import org.junit.Test;
+
+import java.util.Map;
+
+import static org.junit.Assert.*;
+
+/**
+ * This class is to test {@link SubmarineResourceUtils}.
+ */
+public class TestSubmarineResourceUtils {
+  private static final String CUSTOM_RESOURCE_NAME = "a-custom-resource";
+
+  private void initResourceTypes() {
+    CustomResourceTypesConfigurationProvider.initResourceTypes(
+        ImmutableMap.<String, String>builder()
+            .put(CUSTOM_RESOURCE_NAME, "G")
+            .build());
+  }
+
+  @After
+  public void cleanup() {
+    ResourceUtils.resetResourceTypes(new Configuration());
+  }
+
+  @Test
+  public void testConvertResourceWithCustomResource() {
+    initResourceTypes();
+    Resource res = Resource.newInstance(4096, 12,
+        ImmutableMap.of(CUSTOM_RESOURCE_NAME, 20L));
+
+    org.apache.hadoop.yarn.service.api.records.Resource serviceResource =
+        SubmarineResourceUtils.convertYarnResourceToServiceResource(res);
+
+    assertEquals(12, serviceResource.getCpus().intValue());
+    assertEquals(4096, (int) Integer.valueOf(serviceResource.getMemory()));
+    Map<String, ResourceInformation> additionalResources =
+        serviceResource.getAdditional();
+
+    // Additional resources also includes vcores and memory
+    assertEquals(3, additionalResources.size());
+    ResourceInformation customResourceRI =
+        additionalResources.get(CUSTOM_RESOURCE_NAME);
+    assertEquals("G", customResourceRI.getUnit());
+    assertEquals(20L, (long) customResourceRI.getValue());
+  }
+
+}