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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.service.health;
import ai.vespa.http.DomainName;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.vespa.applicationmodel.ServiceStatus;
import com.yahoo.vespa.applicationmodel.ServiceStatusInfo;
import com.yahoo.vespa.service.duper.ConfigServerApplication;
import com.yahoo.vespa.service.monitor.ConfigserverUtil;
import com.yahoo.vespa.service.monitor.ServiceId;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class ApplicationHealthMonitorTest {
private final ConfigServerApplication configServerApplication = new ConfigServerApplication();
@Test
public void activationAndRemoval() {
HealthMonitor monitor1 = mock(HealthMonitor.class);
HealthMonitor monitor2 = mock(HealthMonitor.class);
HealthMonitor monitor3 = mock(HealthMonitor.class);
ApplicationInfo configServer = ConfigserverUtil.makeExampleConfigServer();
StateV1HealthModel model = mock(StateV1HealthModel.class);
ApplicationHealthMonitor applicationMonitor = new ApplicationHealthMonitor(configServer.getApplicationId(), model);
// Activate with cfg1-2
HealthEndpoint endpoint1 = mock(HealthEndpoint.class);
HealthEndpoint endpoint2 = mock(HealthEndpoint.class);
Map<ServiceId, HealthEndpoint> initialEndpoints = new HashMap<>();
initialEndpoints.put(serviceIdOf("cfg1"), endpoint1);
initialEndpoints.put(serviceIdOf("cfg2"), endpoint2);
when(model.extractHealthEndpoints(configServer)).thenReturn(initialEndpoints);
when(endpoint1.startMonitoring()).thenReturn(monitor1);
when(endpoint2.startMonitoring()).thenReturn(monitor2);
applicationMonitor.monitor(configServer);
verify(endpoint1, times(1)).startMonitoring();
verify(endpoint2, times(1)).startMonitoring();
when(monitor1.getStatus()).thenReturn(new ServiceStatusInfo(ServiceStatus.UP));
when(monitor2.getStatus()).thenReturn(new ServiceStatusInfo(ServiceStatus.DOWN));
when(monitor3.getStatus()).thenReturn(new ServiceStatusInfo(ServiceStatus.UP));
assertEquals(ServiceStatus.UP, getStatus(applicationMonitor, "cfg1"));
assertEquals(ServiceStatus.DOWN, getStatus(applicationMonitor, "cfg2"));
assertEquals(ServiceStatus.NOT_CHECKED, getStatus(applicationMonitor, "cfg3"));
// Update application to contain cfg2-3
HealthEndpoint endpoint3 = mock(HealthEndpoint.class);
when(endpoint3.startMonitoring()).thenReturn(monitor3);
Map<ServiceId, HealthEndpoint> endpoints = new HashMap<>();
endpoints.put(serviceIdOf("cfg2"), endpoint2);
endpoints.put(serviceIdOf("cfg3"), endpoint3);
when(model.extractHealthEndpoints(configServer)).thenReturn(endpoints);
applicationMonitor.monitor(configServer);
// Only monitor1 has been removed and had its close called
verify(monitor1, times(1)).close();
verify(monitor2, never()).close();
verify(monitor3, never()).close();
// Only endpoint3 started monitoring from last monitor()
verify(endpoint1, times(1)).startMonitoring();
verify(endpoint2, times(1)).startMonitoring();
verify(endpoint3, times(1)).startMonitoring();
// Now cfg1 will be NOT_CHECKED, while cfg3 should be UP.
assertEquals(ServiceStatus.NOT_CHECKED, getStatus(applicationMonitor, "cfg1"));
assertEquals(ServiceStatus.DOWN, getStatus(applicationMonitor, "cfg2"));
assertEquals(ServiceStatus.UP, getStatus(applicationMonitor, "cfg3"));
applicationMonitor.close();
}
private ServiceId serviceIdOf(String hostname) {
return new ServiceId(configServerApplication.getApplicationId(),
configServerApplication.getClusterId(),
configServerApplication.getServiceType(),
configServerApplication.configIdFor(DomainName.of(hostname)));
}
private ServiceStatus getStatus(ApplicationHealthMonitor monitor, String hostname) {
return monitor.getStatus(
configServerApplication.getApplicationId(),
configServerApplication.getClusterId(),
configServerApplication.getServiceType(),
configServerApplication.configIdFor(DomainName.of(hostname)))
.serviceStatus();
}
}
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