author | mseledtsov |
Tue, 26 Mar 2019 13:25:26 -0700 | |
changeset 54293 | dae71635cc3a |
parent 50545 | 292a4a87c321 |
child 54424 | b354ffb03ae4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.test.lib.containers.docker; |
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import java.io.File; |
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import java.io.IOException; |
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import java.nio.file.Files; |
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import java.nio.file.FileVisitResult; |
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import java.nio.file.Path; |
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import java.nio.file.Paths; |
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import java.nio.file.SimpleFileVisitor; |
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import java.nio.file.StandardCopyOption; |
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import java.nio.file.attribute.BasicFileAttributes; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.List; |
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import jdk.test.lib.Utils; |
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import jdk.test.lib.process.OutputAnalyzer; |
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import jdk.test.lib.process.ProcessTools; |
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public class DockerTestUtils { |
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private static final String FS = File.separator; |
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private static boolean isDockerEngineAvailable = false; |
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private static boolean wasDockerEngineChecked = false; |
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// Diagnostics: set to true to enable more diagnostic info |
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private static final boolean DEBUG = false; |
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/** |
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* Optimized check of whether the docker engine is available in a given |
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* environment. Checks only once, then remembers the result in a singleton. |
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* |
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* @return true if docker engine is available |
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* @throws Exception |
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*/ |
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public static boolean isDockerEngineAvailable() throws Exception { |
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if (wasDockerEngineChecked) |
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return isDockerEngineAvailable; |
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isDockerEngineAvailable = isDockerEngineAvailableCheck(); |
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wasDockerEngineChecked = true; |
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return isDockerEngineAvailable; |
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} |
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/** |
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* Convenience method, will check if docker engine is available and usable; |
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* will print the appropriate message when not available. |
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* |
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* @return true if docker engine is available |
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* @throws Exception |
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*/ |
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public static boolean canTestDocker() throws Exception { |
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if (isDockerEngineAvailable()) { |
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return true; |
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} else { |
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System.out.println("Docker engine is not available on this system"); |
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System.out.println("This test is SKIPPED"); |
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return false; |
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} |
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} |
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/** |
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* Simple check - is docker engine available, accessible and usable. |
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* Run basic docker command: 'docker ps' - list docker instances. |
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* If docker engine is available and accesible then true is returned |
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* and we can proceed with testing docker. |
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* |
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* @return true if docker engine is available and usable |
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* @throws Exception |
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*/ |
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private static boolean isDockerEngineAvailableCheck() throws Exception { |
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try { |
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execute("docker", "ps") |
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.shouldHaveExitValue(0) |
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.shouldContain("CONTAINER") |
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.shouldContain("IMAGE"); |
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} catch (Exception e) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Build a docker image that contains JDK under test. |
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* The jdk will be placed under the "/jdk/" folder inside the docker file system. |
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* |
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* @param imageName name of the image to be created, including version tag |
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* @param dockerfile name of the dockerfile residing in the test source; |
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* we check for a platform specific dockerfile as well |
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* and use this one in case it exists |
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* @param buildDirName name of the docker build/staging directory, which will |
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* be created in the jtreg's scratch folder |
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* @throws Exception |
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*/ |
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public static void |
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buildJdkDockerImage(String imageName, String dockerfile, String buildDirName) |
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throws Exception { |
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Path buildDir = Paths.get(".", buildDirName); |
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if (Files.exists(buildDir)) { |
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throw new RuntimeException("The docker build directory already exists: " + buildDir); |
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} |
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Path jdkSrcDir = Paths.get(Utils.TEST_JDK); |
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Path jdkDstDir = buildDir.resolve("jdk"); |
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|
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Files.createDirectories(jdkDstDir); |
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|
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// Copy JDK-under-test tree to the docker build directory. |
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// This step is required for building a docker image. |
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Files.walkFileTree(jdkSrcDir, new CopyFileVisitor(jdkSrcDir, jdkDstDir)); |
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buildDockerImage(imageName, Paths.get(Utils.TEST_SRC, dockerfile), buildDir); |
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} |
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|
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|
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/** |
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* Build a docker image based on given docker file and docker build directory. |
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* |
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* @param imageName name of the image to be created, including version tag |
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* @param dockerfile path to the Dockerfile to be used for building the docker |
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* image. The specified dockerfile will be copied to the docker build |
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* directory as 'Dockerfile' |
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* @param buildDir build directory; it should already contain all the content |
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* needed to build the docker image. |
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* @throws Exception |
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*/ |
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public static void |
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buildDockerImage(String imageName, Path dockerfile, Path buildDir) throws Exception { |
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|
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generateDockerFile(buildDir.resolve("Dockerfile"), |
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DockerfileConfig.getBaseImageName(), |
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DockerfileConfig.getBaseImageVersion()); |
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|
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// Build the docker |
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execute("docker", "build", "--no-cache", "--tag", imageName, buildDir.toString()) |
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.shouldHaveExitValue(0) |
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.shouldContain("Successfully built"); |
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} |
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|
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|
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/** |
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* Run Java inside the docker image with specified parameters and options. |
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* |
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* @param DockerRunOptions optins for running docker |
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* |
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* @return output of the run command |
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* @throws Exception |
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*/ |
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public static OutputAnalyzer dockerRunJava(DockerRunOptions opts) throws Exception { |
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ArrayList<String> cmd = new ArrayList<>(); |
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|
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cmd.add("docker"); |
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cmd.add("run"); |
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if (opts.tty) |
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cmd.add("--tty=true"); |
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if (opts.removeContainerAfterUse) |
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cmd.add("--rm"); |
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|
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cmd.addAll(opts.dockerOpts); |
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cmd.add(opts.imageNameAndTag); |
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cmd.add(opts.command); |
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|
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cmd.addAll(opts.javaOpts); |
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if (opts.appendTestJavaOptions) { |
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Collections.addAll(cmd, Utils.getTestJavaOpts()); |
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} |
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|
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cmd.add(opts.classToRun); |
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cmd.addAll(opts.classParams); |
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|
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return execute(cmd); |
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} |
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|
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199 |
|
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/** |
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201 |
* Remove docker image |
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202 |
* |
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* @param DockerRunOptions optins for running docker |
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* @return output of the command |
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* @throws Exception |
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*/ |
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public static OutputAnalyzer removeDockerImage(String imageNameAndTag) throws Exception { |
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return execute("docker", "rmi", "--force", imageNameAndTag); |
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} |
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|
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211 |
|
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212 |
|
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/** |
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214 |
* Convenience method - express command as sequence of strings |
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215 |
* |
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* @param command to execute |
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* @return The output from the process |
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* @throws Exception |
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*/ |
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public static OutputAnalyzer execute(List<String> command) throws Exception { |
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return execute(command.toArray(new String[command.size()])); |
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} |
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223 |
|
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224 |
|
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/** |
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* Execute a specified command in a process, report diagnostic info. |
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227 |
* |
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* @param command to be executed |
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* @return The output from the process |
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* @throws Exception |
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231 |
*/ |
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public static OutputAnalyzer execute(String... command) throws Exception { |
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233 |
|
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ProcessBuilder pb = new ProcessBuilder(command); |
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System.out.println("[COMMAND]\n" + Utils.getCommandLine(pb)); |
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|
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long started = System.currentTimeMillis(); |
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OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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239 |
|
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System.out.println("[ELAPSED: " + (System.currentTimeMillis() - started) + " ms]"); |
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System.out.println("[STDERR]\n" + output.getStderr()); |
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System.out.println("[STDOUT]\n" + output.getStdout()); |
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|
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return output; |
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} |
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|
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247 |
|
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private static void generateDockerFile(Path dockerfile, String baseImage, |
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String baseImageVersion) throws Exception { |
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String template = |
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"FROM %s:%s\n" + |
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"COPY /jdk /jdk\n" + |
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"ENV JAVA_HOME=/jdk\n" + |
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"CMD [\"/bin/bash\"]\n"; |
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String dockerFileStr = String.format(template, baseImage, baseImageVersion); |
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Files.writeString(dockerfile, dockerFileStr); |
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} |
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private static class CopyFileVisitor extends SimpleFileVisitor<Path> { |
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private final Path src; |
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private final Path dst; |
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public CopyFileVisitor(Path src, Path dst) { |
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this.src = src; |
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this.dst = dst; |
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} |
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@Override |
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public FileVisitResult preVisitDirectory(Path file, |
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BasicFileAttributes attrs) throws IOException { |
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Path dstDir = dst.resolve(src.relativize(file)); |
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if (!dstDir.toFile().exists()) { |
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Files.createDirectories(dstDir); |
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} |
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return FileVisitResult.CONTINUE; |
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} |
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|
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|
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@Override |
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public FileVisitResult visitFile(Path file, |
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BasicFileAttributes attrs) throws IOException { |
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if (!file.toFile().isFile()) { |
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return FileVisitResult.CONTINUE; |
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} |
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Path dstFile = dst.resolve(src.relativize(file)); |
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Files.copy(file, dstFile, StandardCopyOption.COPY_ATTRIBUTES); |
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return FileVisitResult.CONTINUE; |
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} |
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} |
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} |