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YARN-5443. Add support for docker inspect command. Contributed by Shane Kumpf. 

(cherry picked from commit 2e7c2a13a8)
This commit is contained in:
Varun Vasudev 2016-08-02 16:55:10 +05:30
parent 7eeba35495
commit 4e5409a2bb
2 changed files with 91 additions and 0 deletions
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41
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 Normal file
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/*
* *
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* /
*/
package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.docker;
/**
* Encapsulates the docker inspect command and its command
* line arguments.
*/
public class DockerInspectCommand extends DockerCommand {
private static final String INSPECT_COMMAND = "inspect";
private String containerName;
public DockerInspectCommand(String containerName) {
super(INSPECT_COMMAND);
this.containerName = containerName;
}
public DockerInspectCommand getContainerStatus() {
super.addCommandArguments("--format='{{.State.Status}}'");
super.addCommandArguments(containerName);
return this;
}
}

50
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/TestDockerInspectCommand.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.docker;
import static org.junit.Assert.assertEquals;
import org.junit.Before;
import org.junit.Test;
/**
* Tests the docker inspect command and its command
* line arguments.
*/
public class TestDockerInspectCommand {
private DockerInspectCommand dockerInspectCommand;
private static final String CONTAINER_NAME = "foo";
@Before
public void setup() {
dockerInspectCommand = new DockerInspectCommand(CONTAINER_NAME);
}
@Test
public void testGetCommandOption() {
assertEquals("inspect", dockerInspectCommand.getCommandOption());
}
@Test
public void testGetContainerStatus() throws Exception {
dockerInspectCommand.getContainerStatus();
assertEquals("inspect --format='{{.State.Status}}' foo",
dockerInspectCommand.getCommandWithArguments());
}
}