YARN-8263. DockerClient still touches hadoop.tmp.dir. Contributed by Craig Condit

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java

@@ -944,12 +944,12 @@ public class LinuxContainerExecutor extends ContainerExecutor {
       PrivilegedOperationExecutor privOpExecutor =
           PrivilegedOperationExecutor.getInstance(super.getConf());
       if (DockerCommandExecutor.isRemovable(
-          DockerCommandExecutor.getContainerStatus(containerId,
-              super.getConf(), privOpExecutor, nmContext))) {
+          DockerCommandExecutor.getContainerStatus(containerId, privOpExecutor,
+              nmContext))) {
         LOG.info("Removing Docker container : " + containerId);
         DockerRmCommand dockerRmCommand = new DockerRmCommand(containerId);
         DockerCommandExecutor.executeDockerCommand(dockerRmCommand, containerId,
-            null, super.getConf(), privOpExecutor, false, nmContext);
+            null, privOpExecutor, false, nmContext);
       }
     } catch (ContainerExecutionException e) {
       LOG.warn("Unable to remove docker container: " + containerId);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/DockerLinuxContainerRuntime.java

@@ -298,7 +298,7 @@ public class DockerLinuxContainerRuntime implements LinuxContainerRuntime {
       throws ContainerExecutionException {
     this.nmContext = nmContext;
     this.conf = conf;
-    dockerClient = new DockerClient(conf);
+    dockerClient = new DockerClient();
     allowedNetworks.clear();
     defaultROMounts.clear();
     defaultRWMounts.clear();
@@ -973,7 +973,7 @@ public class DockerLinuxContainerRuntime implements LinuxContainerRuntime {
     String containerIdStr = containerId.toString();
     // Check to see if the container already exists for relaunch
     DockerCommandExecutor.DockerContainerStatus containerStatus =
-        DockerCommandExecutor.getContainerStatus(containerIdStr, conf,
+        DockerCommandExecutor.getContainerStatus(containerIdStr,
             privilegedOperationExecutor, nmContext);
     if (containerStatus != null &&
         DockerCommandExecutor.isStartable(containerStatus)) {
@@ -1219,13 +1219,13 @@ public class DockerLinuxContainerRuntime implements LinuxContainerRuntime {
   private void handleContainerStop(String containerId, Map<String, String> env)
       throws ContainerExecutionException {
     DockerCommandExecutor.DockerContainerStatus containerStatus =
-        DockerCommandExecutor.getContainerStatus(containerId, conf,
+        DockerCommandExecutor.getContainerStatus(containerId,
             privilegedOperationExecutor, nmContext);
     if (DockerCommandExecutor.isStoppable(containerStatus)) {
       DockerStopCommand dockerStopCommand = new DockerStopCommand(
           containerId).setGracePeriod(dockerStopGracePeriod);
       DockerCommandExecutor.executeDockerCommand(dockerStopCommand, containerId,
-          env, conf, privilegedOperationExecutor, false, nmContext);
+          env, privilegedOperationExecutor, false, nmContext);
     } else {
       if (LOG.isDebugEnabled()) {
         LOG.debug(
@@ -1247,14 +1247,13 @@ public class DockerLinuxContainerRuntime implements LinuxContainerRuntime {
     if (isContainerRequestedAsPrivileged(container)) {
       String containerId = container.getContainerId().toString();
       DockerCommandExecutor.DockerContainerStatus containerStatus =
-          DockerCommandExecutor.getContainerStatus(containerId, conf,
+          DockerCommandExecutor.getContainerStatus(containerId,
           privilegedOperationExecutor, nmContext);
       if (DockerCommandExecutor.isKillable(containerStatus)) {
         DockerKillCommand dockerKillCommand =
             new DockerKillCommand(containerId).setSignal(signal.name());
         DockerCommandExecutor.executeDockerCommand(dockerKillCommand,
-            containerId, env, conf, privilegedOperationExecutor, false,
-            nmContext);
+            containerId, env, privilegedOperationExecutor, false, nmContext);
       } else {
         LOG.debug(
             "Container status is {}, skipping kill - {}",
@@ -1292,12 +1291,12 @@ public class DockerLinuxContainerRuntime implements LinuxContainerRuntime {
           + containerId);
     } else {
       DockerCommandExecutor.DockerContainerStatus containerStatus =
-          DockerCommandExecutor.getContainerStatus(containerId, conf,
+          DockerCommandExecutor.getContainerStatus(containerId,
               privilegedOperationExecutor, nmContext);
       if (DockerCommandExecutor.isRemovable(containerStatus)) {
         DockerRmCommand dockerRmCommand = new DockerRmCommand(containerId);
         DockerCommandExecutor.executeDockerCommand(dockerRmCommand, containerId,
-            env, conf, privilegedOperationExecutor, false, nmContext);
+            env, privilegedOperationExecutor, false, nmContext);
       }
     }
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/DockerClient.java

@@ -22,7 +22,6 @@ package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -50,58 +49,6 @@ public final class DockerClient {
   private static final String TMP_FILE_PREFIX = "docker.";
   private static final String TMP_FILE_SUFFIX = ".cmd";
   private static final String TMP_ENV_FILE_SUFFIX = ".env";
-  private final String tmpDirPath;
-
-  public DockerClient(Configuration conf) throws ContainerExecutionException {
-
-    String tmpDirBase = conf.get("hadoop.tmp.dir");
-    if (tmpDirBase == null) {
-      throw new ContainerExecutionException("hadoop.tmp.dir not set!");
-    }
-    tmpDirPath = tmpDirBase + "/nm-docker-cmds";
-
-    File tmpDir = new File(tmpDirPath);
-    if (!(tmpDir.exists() || tmpDir.mkdirs())) {
-      LOG.warn("Unable to create directory: " + tmpDirPath);
-      throw new ContainerExecutionException("Unable to create directory: " +
-          tmpDirPath);
-    }
-  }
-
-  public String writeCommandToTempFile(DockerCommand cmd, String filePrefix)
-      throws ContainerExecutionException {
-    try {
-      File dockerCommandFile = File.createTempFile(TMP_FILE_PREFIX + filePrefix,
-        TMP_FILE_SUFFIX, new
-        File(tmpDirPath));
-      try (
-        Writer writer = new OutputStreamWriter(
-            new FileOutputStream(dockerCommandFile), "UTF-8");
-        PrintWriter printWriter = new PrintWriter(writer);
-      ) {
-        printWriter.println("[docker-command-execution]");
-        for (Map.Entry<String, List<String>> entry :
-            cmd.getDockerCommandWithArguments().entrySet()) {
-          if (entry.getKey().contains("=")) {
-            throw new ContainerExecutionException(
-                "'=' found in entry for docker command file, key = " + entry
-                    .getKey() + "; value = " + entry.getValue());
-          }
-          if (entry.getValue().contains("\n")) {
-            throw new ContainerExecutionException(
-                "'\\n' found in entry for docker command file, key = " + entry
-                    .getKey() + "; value = " + entry.getValue());
-          }
-          printWriter.println("  " + entry.getKey() + "=" + StringUtils
-              .join(",", entry.getValue()));
-        }
-        return dockerCommandFile.getAbsolutePath();
-      }
-    } catch (IOException e) {
-      LOG.warn("Unable to write docker command to temporary file!");
-      throw new ContainerExecutionException(e);
-    }
-  }
 
   private String writeEnvFile(DockerRunCommand cmd, String filePrefix,
       File cmdDir) throws IOException {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/DockerCommand.java

@@ -22,7 +22,6 @@ package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
@@ -117,16 +116,15 @@ public abstract class DockerCommand {
    * @param dockerCommand Specific command to be run by docker.
    * @param containerName
    * @param env
-   * @param conf
    * @param nmContext
    * @return Returns the PrivilegedOperation object to be used.
    * @throws ContainerExecutionException
    */
   public PrivilegedOperation preparePrivilegedOperation(
       DockerCommand dockerCommand, String containerName, Map<String,
-      String> env, Configuration conf, Context nmContext)
+      String> env, Context nmContext)
       throws ContainerExecutionException {
-    DockerClient dockerClient = new DockerClient(conf);
+    DockerClient dockerClient = new DockerClient();
     String commandFile =
         dockerClient.writeCommandToTempFile(dockerCommand,
         ContainerId.fromString(containerName),

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/DockerCommandExecutor.java

@@ -16,7 +16,6 @@
  */
 package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.docker;
 
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperation;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperationException;
@@ -68,19 +67,18 @@ public final class DockerCommandExecutor {
    * @param dockerCommand               the docker command to run.
    * @param containerId                 the id of the container.
    * @param env                         environment for the container.
-   * @param conf                        the hadoop configuration.
    * @param privilegedOperationExecutor the privileged operations executor.
    * @param disableFailureLogging       disable logging for known rc failures.
    * @return the output of the operation.
    * @throws ContainerExecutionException if the operation fails.
    */
   public static String executeDockerCommand(DockerCommand dockerCommand,
-      String containerId, Map<String, String> env, Configuration conf,
+      String containerId, Map<String, String> env,
       PrivilegedOperationExecutor privilegedOperationExecutor,
       boolean disableFailureLogging, Context nmContext)
       throws ContainerExecutionException {
     PrivilegedOperation dockerOp = dockerCommand.preparePrivilegedOperation(
-        dockerCommand, containerId, env, conf, nmContext);
+        dockerCommand, containerId, env, nmContext);
 
     if (disableFailureLogging) {
       dockerOp.disableFailureLogging();
@@ -108,18 +106,16 @@ public final class DockerCommandExecutor {
    * an exception and the nonexistent status is returned.
    *
    * @param containerId                 the id of the container.
-   * @param conf                        the hadoop configuration.
    * @param privilegedOperationExecutor the privileged operations executor.
    * @return a {@link DockerContainerStatus} representing the current status.
    */
   public static DockerContainerStatus getContainerStatus(String containerId,
-      Configuration conf,
       PrivilegedOperationExecutor privilegedOperationExecutor,
       Context nmContext) {
     try {
       DockerContainerStatus dockerContainerStatus;
       String currentContainerStatus =
-          executeStatusCommand(containerId, conf,
+          executeStatusCommand(containerId,
           privilegedOperationExecutor, nmContext);
       if (currentContainerStatus == null) {
         dockerContainerStatus = DockerContainerStatus.UNKNOWN;
@@ -170,13 +166,11 @@ public final class DockerCommandExecutor {
    * status.
    *
    * @param containerId                 the id of the container.
-   * @param conf                        the hadoop configuration.
    * @param privilegedOperationExecutor the privileged operations executor.
    * @return the current container status.
    * @throws ContainerExecutionException if the docker operation fails to run.
    */
   private static String executeStatusCommand(String containerId,
-      Configuration conf,
       PrivilegedOperationExecutor privilegedOperationExecutor,
       Context nmContext)
       throws ContainerExecutionException {
@@ -184,8 +178,7 @@ public final class DockerCommandExecutor {
         new DockerInspectCommand(containerId).getContainerStatus();
     try {
       return DockerCommandExecutor.executeDockerCommand(dockerInspectCommand,
-          containerId, null, conf, privilegedOperationExecutor, true,
-          nmContext);
+          containerId, null, privilegedOperationExecutor, true, nmContext);
     } catch (ContainerExecutionException e) {
       throw new ContainerExecutionException(e);
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/DockerInspectCommand.java

@@ -20,7 +20,6 @@
 
 package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.docker;
 
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperation;
 
@@ -58,7 +57,7 @@ public class DockerInspectCommand extends DockerCommand {
   @Override
   public PrivilegedOperation preparePrivilegedOperation(
       DockerCommand dockerCommand, String containerName, Map<String,
-      String> env, Configuration conf, Context nmContext) {
+      String> env, Context nmContext) {
     PrivilegedOperation dockerOp = new PrivilegedOperation(
         PrivilegedOperation.OperationType.INSPECT_DOCKER_CONTAINER);
     dockerOp.appendArgs(commandArguments, containerName);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/DockerRmCommand.java

@@ -16,7 +16,6 @@
  */
 package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.docker;
 
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperation;
 
@@ -37,7 +36,7 @@ public class DockerRmCommand extends DockerCommand {
   @Override
   public PrivilegedOperation preparePrivilegedOperation(
       DockerCommand dockerCommand, String containerName, Map<String,
-      String> env, Configuration conf, Context nmContext) {
+      String> env, Context nmContext) {
     PrivilegedOperation dockerOp = new PrivilegedOperation(
         PrivilegedOperation.OperationType.REMOVE_DOCKER_CONTAINER);
     dockerOp.appendArgs(containerName);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/TestDockerClient.java

@@ -68,7 +68,7 @@ public class TestDockerClient {
     doReturn(conf).when(mockContext).getConf();
     doReturn(dirsHandler).when(mockContext).getLocalDirsHandler();
 
-    DockerClient dockerClient = new DockerClient(conf);
+    DockerClient dockerClient = new DockerClient();
     dirsHandler.init(conf);
     dirsHandler.start();
     String tmpPath = dockerClient.writeCommandToTempFile(dockerCmd, cid,

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/docker/TestDockerCommandExecutor.java

@@ -138,7 +138,7 @@ public class TestDockerCommandExecutor {
     DockerStopCommand dockerStopCommand =
         new DockerStopCommand(MOCK_CONTAINER_ID);
     DockerCommandExecutor.executeDockerCommand(dockerStopCommand,
-        cId.toString(), env, configuration, mockExecutor, false, nmContext);
+        cId.toString(), env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     assertEquals(1, ops.size());
@@ -150,7 +150,7 @@ public class TestDockerCommandExecutor {
   public void testExecuteDockerRm() throws Exception {
     DockerRmCommand dockerCommand = new DockerRmCommand(MOCK_CONTAINER_ID);
     DockerCommandExecutor.executeDockerCommand(dockerCommand, MOCK_CONTAINER_ID,
-        env, configuration, mockExecutor, false, nmContext);
+        env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     PrivilegedOperation privOp = ops.get(0);
@@ -167,7 +167,7 @@ public class TestDockerCommandExecutor {
   public void testExecuteDockerStop() throws Exception {
     DockerStopCommand dockerCommand = new DockerStopCommand(MOCK_CONTAINER_ID);
     DockerCommandExecutor.executeDockerCommand(dockerCommand, MOCK_CONTAINER_ID,
-        env, configuration, mockExecutor, false, nmContext);
+        env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     List<String> dockerCommands = getValidatedDockerCommands(ops);
@@ -185,7 +185,7 @@ public class TestDockerCommandExecutor {
     DockerInspectCommand dockerCommand =
         new DockerInspectCommand(MOCK_CONTAINER_ID).getContainerStatus();
     DockerCommandExecutor.executeDockerCommand(dockerCommand, MOCK_CONTAINER_ID,
-        env, configuration, mockExecutor, false, nmContext);
+        env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     PrivilegedOperation privOp = ops.get(0);
@@ -204,7 +204,7 @@ public class TestDockerCommandExecutor {
     DockerPullCommand dockerCommand =
         new DockerPullCommand(MOCK_IMAGE_NAME);
     DockerCommandExecutor.executeDockerCommand(dockerCommand, MOCK_CONTAINER_ID,
-        env, configuration, mockExecutor, false, nmContext);
+        env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     List<String> dockerCommands = getValidatedDockerCommands(ops);
@@ -222,7 +222,7 @@ public class TestDockerCommandExecutor {
     DockerLoadCommand dockerCommand =
         new DockerLoadCommand(MOCK_LOCAL_IMAGE_NAME);
     DockerCommandExecutor.executeDockerCommand(dockerCommand, MOCK_CONTAINER_ID,
-        env, configuration, mockExecutor, false, nmContext);
+        env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     List<String> dockerCommands = getValidatedDockerCommands(ops);
@@ -244,7 +244,7 @@ public class TestDockerCommandExecutor {
           any(PrivilegedOperation.class), eq(null), any(), eq(true), eq(false)))
           .thenReturn(status.getName());
       assertEquals(status, DockerCommandExecutor.getContainerStatus(
-          MOCK_CONTAINER_ID, configuration, mockExecutor, nmContext));
+          MOCK_CONTAINER_ID, mockExecutor, nmContext));
     }
   }
 
@@ -254,7 +254,7 @@ public class TestDockerCommandExecutor {
         new DockerKillCommand(MOCK_CONTAINER_ID)
             .setSignal(ContainerExecutor.Signal.QUIT.name());
     DockerCommandExecutor.executeDockerCommand(dockerKillCommand,
-        MOCK_CONTAINER_ID, env, configuration, mockExecutor, false, nmContext);
+        MOCK_CONTAINER_ID, env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     List<String> dockerCommands = getValidatedDockerCommands(ops);
@@ -275,7 +275,7 @@ public class TestDockerCommandExecutor {
         new DockerKillCommand(MOCK_CONTAINER_ID)
             .setSignal(ContainerExecutor.Signal.KILL.name());
     DockerCommandExecutor.executeDockerCommand(dockerKillCommand,
-        MOCK_CONTAINER_ID, env, configuration, mockExecutor, false, nmContext);
+        MOCK_CONTAINER_ID, env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     List<String> dockerCommands = getValidatedDockerCommands(ops);
@@ -296,7 +296,7 @@ public class TestDockerCommandExecutor {
         new DockerKillCommand(MOCK_CONTAINER_ID)
             .setSignal(ContainerExecutor.Signal.TERM.name());
     DockerCommandExecutor.executeDockerCommand(dockerKillCommand,
-        MOCK_CONTAINER_ID, env, configuration, mockExecutor, false, nmContext);
+        MOCK_CONTAINER_ID, env, mockExecutor, false, nmContext);
     List<PrivilegedOperation> ops = MockPrivilegedOperationCaptor
         .capturePrivilegedOperations(mockExecutor, 1, true);
     List<String> dockerCommands = getValidatedDockerCommands(ops);