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/*
* Copyright (c) 2014 Spotify AB.
*
* Licensed 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.helios.Polling;
import com.spotify.helios.agent.AgentMain;
import com.spotify.helios.client.HeliosClient;
import com.spotify.helios.common.descriptors.Deployment;
import com.spotify.helios.common.descriptors.HostStatus;
import com.spotify.helios.common.descriptors.Job;
import com.spotify.helios.common.descriptors.JobId;
import com.spotify.helios.common.descriptors.TaskStatus;
import com.spotify.helios.common.descriptors.TaskStatus.State;
import com.spotify.helios.common.protocol.CreateJobResponse;
import com.spotify.helios.common.protocol.JobDeployResponse;
import com.spotify.helios.common.protocol.JobUndeployResponse;
import com.spotify.helios.common.protocol.SetGoalResponse;
import org.junit.Test;
import java.util.concurrent.Callable;
import static com.spotify.helios.common.descriptors.Goal.START;
import static com.spotify.helios.common.descriptors.Goal.STOP;
import static com.spotify.helios.common.descriptors.HostStatus.Status.DOWN;
import static com.spotify.helios.common.descriptors.HostStatus.Status.UP;
import static com.spotify.helios.common.descriptors.TaskStatus.State.PULLING_IMAGE;
import static com.spotify.helios.common.descriptors.TaskStatus.State.RUNNING;
import static com.spotify.helios.common.descriptors.TaskStatus.State.STOPPED;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class AgentRestartTest extends SystemTestBase {
@Test
public void test() throws Exception {
startDefaultMaster();
final DockerClient dockerClient = getNewDockerClient();
final HeliosClient client = defaultClient();
final AgentMain agent1 = startDefaultAgent(testHost());
// Create a job
final Job job = Job.newBuilder()
.setName(testJobName)
.setVersion(testJobVersion)
.setImage(BUSYBOX)
.setCommand(IDLE_COMMAND)
.setCreatingUser(TEST_USER)
.build();
final JobId jobId = job.getId();
final CreateJobResponse created = client.createJob(job).get();
assertEquals(CreateJobResponse.Status.OK, created.getStatus());
// Wait for agent to come up
awaitHostRegistered(client, testHost(), LONG_WAIT_SECONDS, SECONDS);
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Deploy the job on the agent
final Deployment deployment = Deployment.of(jobId, START);
final JobDeployResponse deployed = client.deploy(deployment, testHost()).get();
assertEquals(JobDeployResponse.Status.OK, deployed.getStatus());
// Wait for the job to run
final TaskStatus firstTaskStatus = awaitJobState(client, testHost(), jobId, RUNNING,
LONG_WAIT_SECONDS, SECONDS);
assertJobEquals(job, firstTaskStatus.getJob());
assertEquals(1, listContainers(dockerClient, testTag).size());
assertTrue(dockerClient.inspectContainer(firstTaskStatus.getContainerId()).state().running());
// Stop the agent
agent1.stopAsync().awaitTerminated();
awaitHostStatus(client, testHost(), DOWN, LONG_WAIT_SECONDS, SECONDS);
// Start the agent again
final AgentMain agent2 = startDefaultAgent(testHost());
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Wait for a while and make sure that the same container is still running
Thread.sleep(5000);
final HostStatus hostStatus = client.hostStatus(testHost()).get();
final TaskStatus taskStatus = hostStatus.getStatuses().get(jobId);
if (firstTaskStatus.getState() == PULLING_IMAGE) {
final State state = taskStatus.getState();
assertTrue(state == RUNNING || state == PULLING_IMAGE);
} else {
assertEquals(RUNNING, taskStatus.getState());
}
assertEquals(firstTaskStatus.getContainerId(), taskStatus.getContainerId());
assertEquals(1, listContainers(dockerClient, testTag).size());
assertTrue(dockerClient.inspectContainer(firstTaskStatus.getContainerId()).state().running());
// Stop the agent
agent2.stopAsync().awaitTerminated();
awaitHostStatus(client, testHost(), DOWN, LONG_WAIT_SECONDS, SECONDS);
// Kill the container
dockerClient.killContainer(firstTaskStatus.getContainerId());
assertEquals(0, listContainers(dockerClient, testTag).size());
// Start the agent again
final AgentMain agent3 = startDefaultAgent(testHost());
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Wait for the job to be restarted in a new container
final TaskStatus secondTaskStatus = Polling.await(
LONG_WAIT_SECONDS, SECONDS,
new Callable() {
@Override
public TaskStatus call() throws Exception {
final HostStatus hostStatus = client.hostStatus(testHost()).get();
final TaskStatus taskStatus = hostStatus.getStatuses().get(jobId);
return (taskStatus != null && taskStatus.getContainerId() != null &&
taskStatus.getState() == RUNNING &&
!taskStatus.getContainerId().equals(firstTaskStatus.getContainerId()))
? taskStatus
: null;
}
});
assertEquals(1, listContainers(dockerClient, testTag).size());
assertTrue(dockerClient.inspectContainer(secondTaskStatus.getContainerId()).state().running());
// Stop the agent
agent3.stopAsync().awaitTerminated();
awaitHostStatus(client, testHost(), DOWN, LONG_WAIT_SECONDS, SECONDS);
// Kill and destroy the container
dockerClient.killContainer(secondTaskStatus.getContainerId());
removeContainer(dockerClient, secondTaskStatus.getContainerId());
// Start the agent again
final AgentMain agent4 = startDefaultAgent(testHost());
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Wait for the task to be restarted in a new container
final TaskStatus thirdTaskStatus = Polling.await(
LONG_WAIT_SECONDS, SECONDS, new Callable() {
@Override
public TaskStatus call() throws Exception {
final HostStatus hostStatus = client.hostStatus(testHost()).get();
final TaskStatus taskStatus = hostStatus.getStatuses().get(jobId);
return (taskStatus != null && taskStatus.getContainerId() != null &&
taskStatus.getState() == RUNNING &&
!taskStatus.getContainerId().equals(secondTaskStatus.getContainerId()))
? taskStatus
: null;
}
});
assertEquals(1, listContainers(dockerClient, testTag).size());
assertTrue(dockerClient.inspectContainer(thirdTaskStatus.getContainerId()).state().running());
// Stop the agent
agent4.stopAsync().awaitTerminated();
awaitHostStatus(client, testHost(), DOWN, LONG_WAIT_SECONDS, SECONDS);
// Stop the job
final SetGoalResponse stopped = client.setGoal(Deployment.of(jobId, STOP), testHost()).get();
assertEquals(SetGoalResponse.Status.OK, stopped.getStatus());
// Start the agent again
final AgentMain agent5 = startDefaultAgent(testHost());
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Verify that the task is stopped
awaitJobState(client, testHost(), jobId, STOPPED, LONG_WAIT_SECONDS, SECONDS);
assertEquals(0, listContainers(dockerClient, testTag).size());
// Stop the agent
agent5.stopAsync().awaitTerminated();
awaitHostStatus(client, testHost(), DOWN, LONG_WAIT_SECONDS, SECONDS);
// Start the job
final SetGoalResponse started = client.setGoal(Deployment.of(jobId, START),
testHost()).get();
assertEquals(SetGoalResponse.Status.OK, started.getStatus());
// Start the agent again
final AgentMain agent6 = startDefaultAgent(testHost());
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Verify that the task is started
awaitJobState(client, testHost(), jobId, RUNNING, LONG_WAIT_SECONDS, SECONDS);
assertEquals(1, listContainers(dockerClient, testTag).size());
// Stop the agent
agent6.stopAsync().awaitTerminated();
awaitHostStatus(client, testHost(), DOWN, LONG_WAIT_SECONDS, SECONDS);
// Undeploy the job
final JobUndeployResponse undeployed = client.undeploy(jobId, testHost()).get();
assertEquals(JobUndeployResponse.Status.OK, undeployed.getStatus());
// Start the agent again
startDefaultAgent(testHost());
awaitHostStatus(client, testHost(), UP, LONG_WAIT_SECONDS, SECONDS);
// Wait for the task to get removed
awaitTaskGone(client, testHost(), jobId, LONG_WAIT_SECONDS, SECONDS);
assertEquals(0, listContainers(dockerClient, testTag).size());
}
}
