/*
* Copyright (c) 2014 Spotify AB.
*
* 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 com.spotify.helios.system;
import com.spotify.docker.client.DockerClient;
import com.spotify.docker.client.LogStream;
import com.spotify.helios.client.HeliosClient;
import com.spotify.helios.common.descriptors.Deployment;
import com.spotify.helios.common.descriptors.Goal;
import com.spotify.helios.common.descriptors.Job;
import com.spotify.helios.common.descriptors.JobId;
import com.spotify.helios.common.descriptors.TaskStatus;
import org.junit.Before;
import org.junit.Test;
import static com.spotify.docker.client.DockerClient.LogsParameter.STDOUT;
import static com.spotify.helios.common.descriptors.HostStatus.Status.UP;
import static com.spotify.helios.common.descriptors.TaskStatus.State.RUNNING;
import static com.spotify.helios.common.descriptors.TaskStatus.State.STOPPED;
import static java.util.Arrays.asList;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.hamcrest.Matchers.startsWith;
import static org.junit.Assert.assertEquals;
import static org.junit.Assume.assumeThat;
public class TerminationTest extends SystemTestBase {
@Before
public void setup() throws Exception {
// LXC has a bug where the TERM signal isn't sent to containers, so we can only run this test
// if docker runs with the native driver.
// See: https://github.com/docker/docker/issues/2436
final DockerClient dockerClient = getNewDockerClient();
assumeThat(dockerClient.info().executionDriver(), startsWith("native"));
}
@Test
public void testNoIntOnExit() throws Exception {
startDefaultMaster();
final String host = testHost();
startDefaultAgent(host);
final HeliosClient client = defaultClient();
awaitHostStatus(client, host, UP, LONG_WAIT_SECONDS, SECONDS);
// Note: signal 2 is SIGINT
final Job jobToInterrupt = Job.newBuilder()
.setName(testJobName)
.setVersion(testJobVersion)
.setImage(BUSYBOX)
.setCommand(asList("/bin/sh", "-c", "trap handle 2; handle() { echo int; exit 0; }; "
+ "while true; do sleep 1; done"))
.build();
final JobId jobId = createJob(jobToInterrupt);
deployJob(jobId, host);
awaitTaskState(jobId, host, RUNNING);
client.setGoal(new Deployment(jobId, Goal.STOP, Deployment.EMTPY_DEPLOYER_USER), host);
final TaskStatus taskStatus = awaitTaskState(jobId, host, STOPPED);
final String log;
try (final DockerClient dockerClient = getNewDockerClient();
LogStream logs = dockerClient.logs(taskStatus.getContainerId(), STDOUT)) {
log = logs.readFully();
}
// No message expected, since SIGINT should not be sent
assertEquals("", log);
}
@Test
public void testTermOnExit() throws Exception {
startDefaultMaster();
final String host = testHost();
startDefaultAgent(host);
final HeliosClient client = defaultClient();
awaitHostStatus(client, host, UP, LONG_WAIT_SECONDS, SECONDS);
// Note: signal 15 is SIGTERM
final Job jobToInterrupt = Job.newBuilder()
.setName(testJobName)
.setVersion(testJobVersion)
.setImage(BUSYBOX)
.setCommand(asList("/bin/sh", "-c", "trap handle 15; handle() { echo term; exit 0; }; "
+ "while true; do sleep 1; done"))
.build();
final JobId jobId = createJob(jobToInterrupt);
deployJob(jobId, host);
awaitTaskState(jobId, host, RUNNING);
client.setGoal(new Deployment(jobId, Goal.STOP, Deployment.EMTPY_DEPLOYER_USER), host);
final TaskStatus taskStatus = awaitTaskState(jobId, host, STOPPED);
final String log;
try (final DockerClient dockerClient = getNewDockerClient();
LogStream logs = dockerClient.logs(taskStatus.getContainerId(), STDOUT)) {
log = logs.readFully();
}
// Message expected, because the SIGTERM handler in the script should have run
assertEquals("term\n", log);
}
}