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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.orchestrator;
import ai.vespa.http.DomainName;
import com.yahoo.config.model.api.SuperModel;
import com.yahoo.config.model.api.SuperModelListener;
import com.yahoo.config.model.api.SuperModelProvider;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.Environment;
import com.yahoo.config.provision.RegionName;
import com.yahoo.config.provision.SystemName;
import com.yahoo.config.provision.Zone;
import com.yahoo.jdisc.Metric;
import com.yahoo.jdisc.test.TestTimer;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.applicationmodel.ServiceStatus;
import com.yahoo.vespa.applicationmodel.ServiceStatusInfo;
import com.yahoo.vespa.flags.InMemoryFlagSource;
import com.yahoo.vespa.orchestrator.controller.ClusterControllerClientFactoryMock;
import com.yahoo.vespa.orchestrator.model.ApplicationApiFactory;
import com.yahoo.vespa.orchestrator.policy.HostStateChangeDeniedException;
import com.yahoo.vespa.orchestrator.policy.HostedVespaClusterPolicy;
import com.yahoo.vespa.orchestrator.policy.HostedVespaPolicy;
import com.yahoo.vespa.orchestrator.status.InMemoryStatusService;
import com.yahoo.vespa.service.duper.ConfigServerApplication;
import com.yahoo.vespa.service.duper.DuperModel;
import com.yahoo.vespa.service.duper.DuperModelManager;
import com.yahoo.vespa.service.manager.UnionMonitorManager;
import com.yahoo.vespa.service.model.ServiceMonitorImpl;
import org.junit.Before;
import org.junit.Test;
import java.util.List;
import java.util.Map;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
/**
* @author hakon
*/
public class OrchestratorTest {
private static final Zone zone = Zone.defaultZone();
private final InMemoryStatusService statusService = new InMemoryStatusService();
private DuperModelManager duperModelManager;
private MySuperModelProvider superModelManager;
private UnionMonitorManager monitorManager;
private OrchestratorImpl orchestrator;
@Before
public void setUp() {
var flagSource = new InMemoryFlagSource();
var timer = new TestTimer();
var clustercontroller = new ClusterControllerClientFactoryMock();
var applicationApiFactory = new ApplicationApiFactory(3, 5, 1, 0.1, timer.toUtcClock());
var clusterPolicy = new HostedVespaClusterPolicy(flagSource, zone);
var policy = new HostedVespaPolicy(clusterPolicy, clustercontroller, applicationApiFactory, flagSource);
var zone = new Zone(SystemName.cd, Environment.prod, RegionName.from("cd-us-east-1"));
this.superModelManager = new MySuperModelProvider();
var duperModel = new DuperModel();
this.duperModelManager = new DuperModelManager(true, false, superModelManager, duperModel);
this.monitorManager = mock(UnionMonitorManager.class);
var metric = mock(Metric.class);
var serviceMonitor = new ServiceMonitorImpl(duperModelManager, monitorManager, metric, timer, zone);
this.orchestrator = new OrchestratorImpl(policy,
clustercontroller,
statusService,
serviceMonitor,
0,
timer.toUtcClock(),
applicationApiFactory,
flagSource);
}
@Test
public void simulate_config_server_reprovision() throws OrchestrationException {
// All services are healthy at all times
when(monitorManager.getStatus(any(), any(), any(), any())).thenReturn(new ServiceStatusInfo(ServiceStatus.UP));
// There are no ordinary applications
superModelManager.markAsComplete();
// There is one config server application with 3 nodes
ApplicationId applicationId = new ConfigServerApplication().getApplicationId();
var cfg1 = DomainName.of("cfg1");
var cfg2 = DomainName.of("cfg2");
var cfg3 = DomainName.of("cfg3");
duperModelManager.infraApplicationActivated(applicationId, List.of(cfg1, cfg2, cfg3));
duperModelManager.infraApplicationsIsNowComplete();
// cfg1 completes retirement
orchestrator.acquirePermissionToRemove(toApplicationModelHostName(cfg1));
// No other cfg is allowed to go permanently down BEFORE cfg1 is removed from the app
try {
orchestrator.acquirePermissionToRemove(toApplicationModelHostName(cfg2));
fail();
} catch (HostStateChangeDeniedException e) {
assertTrue(e.getMessage().contains("Changing the state of cfg2 would violate enough-services-up"));
assertTrue(e.getMessage().contains("[cfg1] is suspended."));
}
// cfg1 is removed from the application
duperModelManager.infraApplicationActivated(applicationId, List.of(cfg2, cfg3));
// No other cfg is allowed to go permanently down AFTER cfg1 is removed from the app
try {
orchestrator.acquirePermissionToRemove(toApplicationModelHostName(cfg2));
fail();
} catch (HostStateChangeDeniedException e) {
assertTrue(e.getMessage().contains("Changing the state of cfg2 would violate enough-services-up"));
assertTrue(e.getMessage().contains("[1 missing config server] is down."));
}
// cfg1 is reprovisioned, added to the node repo, and activated
duperModelManager.infraApplicationActivated(applicationId, List.of(cfg1, cfg2, cfg3));
// cfg2 is allowed to be removed
orchestrator.acquirePermissionToRemove(toApplicationModelHostName(cfg2));
// No other cfg is allowed to go permanently down BEFORE cfg2 is removed from the app
try {
orchestrator.acquirePermissionToRemove(toApplicationModelHostName(cfg1));
fail();
} catch (HostStateChangeDeniedException e) {
assertTrue(e.getMessage().contains("Changing the state of cfg1 would violate enough-services-up"));
assertTrue(e.getMessage().contains("[cfg2] is suspended"));
}
// etc (should be the same as for cfg1)
}
private HostName toApplicationModelHostName(DomainName hostname) {
return new HostName(hostname.value());
}
private static class MySuperModelProvider implements SuperModelProvider {
private boolean complete = false;
private SuperModelListener listener = null;
@Override
public void registerListener(SuperModelListener listener) {
if (this.listener != null) {
throw new IllegalStateException("This instance already has a listener");
}
this.listener = listener;
}
public void markAsComplete() {
complete = true;
if (listener == null) {
throw new IllegalStateException("This instance has no listener");
}
listener.notifyOfCompleteness(getSuperModel());
}
@Override
public SuperModel getSuperModel() {
return new SuperModel(Map.of(), complete);
}
}
}
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