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/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @summary Ensure that certain JFR events return correct results for resource values
* when run inside Docker container, such as available CPU and memory.
* Also make sure that PIDs are based on value provided by container,
* not by the host system.
* @requires (docker.support & os.maxMemory >= 2g)
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.management
* jdk.jartool/sun.tools.jar
* @build JfrReporter
* @run driver TestJFREvents
*/
import java.util.List;
import jdk.test.lib.containers.docker.Common;
import jdk.test.lib.containers.docker.DockerRunOptions;
import jdk.test.lib.containers.docker.DockerTestUtils;
import jdk.test.lib.Asserts;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.Utils;
public class TestJFREvents {
private static final String imageName = Common.imageName("jfr-events");
private static final String TEST_ENV_VARIABLE = "UNIQUE_VARIABLE_ABC592903XYZ";
private static final String TEST_ENV_VALUE = "unique_value_abc592903xyz";
private static final int availableCPUs = Runtime.getRuntime().availableProcessors();
public static void main(String[] args) throws Exception {
System.out.println("Test Environment: detected availableCPUs = " + availableCPUs);
if (!DockerTestUtils.canTestDocker()) {
return;
}
DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
try {
// leave one CPU for system and tools, otherwise this test may be unstable
int maxNrOfAvailableCpus = availableCPUs - 1;
for (int i=1; i < maxNrOfAvailableCpus; i = i * 2) {
testCPUInfo(i, i);
}
long MB = 1024*1024;
testMemory("200m", "" + 200*MB);
testMemory("500m", "" + 500*MB);
testMemory("1g", "" + 1024*MB);
testProcessInfo();
testEnvironmentVariables();
} finally {
DockerTestUtils.removeDockerImage(imageName);
}
}
private static void testCPUInfo(int valueToSet, int expectedValue) throws Exception {
Common.logNewTestCase("CPUInfo: --cpus = " + valueToSet);
DockerTestUtils.dockerRunJava(
commonDockerOpts()
.addDockerOpts("--cpus=" + valueToSet)
.addClassOptions("jdk.CPUInformation"))
.shouldHaveExitValue(0);
// The following assertion is currently disabled due to JFR reporting incorrect values.
// JFR reports values for the host system as opposed to values for the container.
// @ignore 8219999
// .shouldContain("cores = " + expectedValue");
}
private static void testMemory(String valueToSet, String expectedValue) throws Exception {
Common.logNewTestCase("Memory: --memory = " + valueToSet);
DockerTestUtils.dockerRunJava(
commonDockerOpts()
.addDockerOpts("--memory=" + valueToSet)
.addClassOptions("jdk.PhysicalMemory"))
.shouldHaveExitValue(0)
.shouldContain("totalSize = " + expectedValue);
}
private static void testProcessInfo() throws Exception {
Common.logNewTestCase("ProcessInfo");
DockerTestUtils.dockerRunJava(
commonDockerOpts()
.addClassOptions("jdk.SystemProcess"))
.shouldHaveExitValue(0)
.shouldContain("pid = 1");
}
private static DockerRunOptions commonDockerOpts() {
return new DockerRunOptions(imageName, "/jdk/bin/java", "JfrReporter")
.addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/")
.addJavaOpts("-cp", "/test-classes/");
}
private static void testEnvironmentVariables() throws Exception {
Common.logNewTestCase("EnvironmentVariables");
List<String> cmd = DockerTestUtils.buildJavaCommand(
commonDockerOpts()
.addClassOptions("jdk.InitialEnvironmentVariable"));
ProcessBuilder pb = new ProcessBuilder(cmd);
// Container has JAVA_HOME defined via the Dockerfile; make sure
// it is reported by JFR event.
// Environment variable set in host system should not be visible inside a container,
// and should not be reported by JFR.
pb.environment().put(TEST_ENV_VARIABLE, TEST_ENV_VALUE);
System.out.println("[COMMAND]\n" + Utils.getCommandLine(pb));
OutputAnalyzer out = new OutputAnalyzer(pb.start());
System.out.println("[STDERR]\n" + out.getStderr());
System.out.println("[STDOUT]\n" + out.getStdout());
out.shouldHaveExitValue(0)
.shouldContain("key = JAVA_HOME")
.shouldContain("value = /jdk")
.shouldNotContain(TEST_ENV_VARIABLE)
.shouldNotContain(TEST_ENV_VALUE);
}
}
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