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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.config.server.model;
import com.yahoo.cloud.config.LbServicesConfig;
import com.yahoo.cloud.config.LbServicesConfig.Tenants.Applications.Endpoints;
import com.yahoo.config.application.api.ApplicationPackage;
import com.yahoo.config.model.NullConfigModelRegistry;
import com.yahoo.config.model.api.ApplicationClusterEndpoint;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.model.api.ContainerEndpoint;
import com.yahoo.config.model.api.Model;
import com.yahoo.config.model.deploy.DeployState;
import com.yahoo.config.model.deploy.TestProperties;
import com.yahoo.config.model.provision.InMemoryProvisioner;
import com.yahoo.config.model.test.MockApplicationPackage;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.Environment;
import com.yahoo.config.provision.RegionName;
import com.yahoo.config.provision.TenantName;
import com.yahoo.config.provision.Zone;
import com.yahoo.vespa.config.ConfigPayload;
import com.yahoo.vespa.flags.InMemoryFlagSource;
import com.yahoo.vespa.model.VespaModel;
import org.junit.Test;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import static com.yahoo.cloud.config.LbServicesConfig.Tenants.Applications.Endpoints.RoutingMethod.Enum.sharedLayer4;
import static com.yahoo.cloud.config.LbServicesConfig.Tenants.Applications.Endpoints.Scope.Enum.application;
import static com.yahoo.cloud.config.LbServicesConfig.Tenants.Applications.Endpoints.Scope.Enum.global;
import static com.yahoo.cloud.config.LbServicesConfig.Tenants.Applications.Endpoints.Scope.Enum.zone;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
/**
* @author Ulf Lilleengen
*/
public class LbServicesProducerTest {
private static final Set<ContainerEndpoint> endpoints = Set.of(
new ContainerEndpoint("mydisc", ApplicationClusterEndpoint.Scope.zone, List.of("mydisc.foo.foo.endpoint1.suffix")),
new ContainerEndpoint("mydisc", ApplicationClusterEndpoint.Scope.zone, List.of("mydisc.foo.foo.endpoint2.suffix")),
new ContainerEndpoint("mydisc", ApplicationClusterEndpoint.Scope.global, List.of("rotation-1", "rotation-2")),
new ContainerEndpoint("mydisc", ApplicationClusterEndpoint.Scope.application, List.of("app-endpoint"))
);
private final InMemoryFlagSource flagSource = new InMemoryFlagSource();
@Test
public void testDeterministicGetConfig() {
Map<TenantName, Set<ApplicationInfo>> testModel = createTestModel(new DeployState.Builder().endpoints(endpoints));
LbServicesConfig last = null;
for (int i = 0; i < 100; i++) {
testModel = randomizeApplications(testModel, i);
LbServicesConfig config = getLbServicesConfig(Zone.defaultZone(), testModel);
if (last != null) {
assertConfig(last, config);
}
last = config;
}
}
@Test
public void testConfigActiveRotation() {
RegionName regionName = RegionName.from("us-east-1");
LbServicesConfig conf = createModelAndGetLbServicesConfig(regionName);
assertTrue(conf.tenants("foo").applications("foo:prod:" + regionName.value() + ":default").activeRotation());
}
private LbServicesConfig createModelAndGetLbServicesConfig(RegionName regionName) {
Zone zone = new Zone(Environment.prod, regionName);
Map<TenantName, Set<ApplicationInfo>> testModel = createTestModel(new DeployState.Builder().endpoints(Set.of(new ContainerEndpoint("mydisc", ApplicationClusterEndpoint.Scope.zone, List.of("md.example.com")))).zone(zone));
return getLbServicesConfig(new Zone(Environment.prod, regionName), testModel);
}
private LbServicesConfig getLbServicesConfig(Zone zone, Map<TenantName, Set<ApplicationInfo>> testModel) {
LbServicesProducer producer = new LbServicesProducer(testModel, zone, flagSource);
LbServicesConfig.Builder builder = new LbServicesConfig.Builder();
producer.getConfig(builder);
return new LbServicesConfig(builder);
}
@Test
public void testConfigAliasesWithEndpoints() {
Map<TenantName, Set<ApplicationInfo>> testModel = createTestModel(new DeployState.Builder()
.endpoints(endpoints)
.properties(new TestProperties().setHostedVespa(true)));
RegionName regionName = RegionName.from("us-east-1");
LbServicesConfig config = getLbServicesConfig(new Zone(Environment.prod, regionName), testModel);
List<Endpoints> endpointList = config.tenants("foo").applications("foo:prod:" + regionName.value() + ":default").endpoints();
// Expect 2 zone endpoints (2 suffixes), 2 global endpoints and 1 application endpoint
assertEquals(5, endpointList.size());
List<Endpoints> zoneEndpoints = endpointList.stream().filter(e -> e.scope() == zone).toList();
assertEquals(2, zoneEndpoints.size());
assertTrue(zoneEndpoints.stream()
.filter(e -> e.routingMethod() == sharedLayer4)
.map(Endpoints::dnsName).toList()
.containsAll(List.of("mydisc.foo.foo.endpoint1.suffix", "mydisc.foo.foo.endpoint2.suffix")));
assertContainsEndpoint(zoneEndpoints, "mydisc.foo.foo.endpoint1.suffix", "mydisc", zone, sharedLayer4, 1, List.of("foo.foo.yahoo.com"));
assertContainsEndpoint(zoneEndpoints, "mydisc.foo.foo.endpoint2.suffix", "mydisc", zone, sharedLayer4, 1, List.of("foo.foo.yahoo.com"));
List<Endpoints> globalEndpoints = endpointList.stream().filter(e -> e.scope() == global).toList();
assertEquals(2, globalEndpoints.size());
assertTrue(globalEndpoints.stream().map(Endpoints::dnsName).toList().containsAll(List.of("rotation-1", "rotation-2")));
assertContainsEndpoint(globalEndpoints, "rotation-1", "mydisc", global, sharedLayer4, 1, List.of("foo.foo.yahoo.com"));
assertContainsEndpoint(globalEndpoints, "rotation-2", "mydisc", global, sharedLayer4, 1, List.of("foo.foo.yahoo.com"));
List<Endpoints> applicationEndpoints = endpointList.stream().filter(e -> e.scope() == application).toList();
assertEquals(1, applicationEndpoints.size());
assertTrue(applicationEndpoints.stream().map(Endpoints::dnsName).toList().contains("app-endpoint"));
assertContainsEndpoint(applicationEndpoints, "app-endpoint", "mydisc", application, sharedLayer4, 1, List.of("foo.foo.yahoo.com"));
}
@Test
public void testRoutingConfigForTesterApplication() {
Map<TenantName, Set<ApplicationInfo>> testModel = createTestModel(new DeployState.Builder().endpoints(Set.of(new ContainerEndpoint("mydisc", ApplicationClusterEndpoint.Scope.zone, List.of("md.example.com")))));
// No config for tester application
assertNull(getLbServicesConfig(Zone.defaultZone(), testModel)
.tenants("foo")
.applications("baz:prod:default:custom-t"));
}
private void assertContainsEndpoint(List<Endpoints> endpoints, String dnsName, String clusterId, Endpoints.Scope.Enum scope, Endpoints.RoutingMethod.Enum routingMethod, int weight, List<String> hosts) {
assertTrue(endpoints.contains(new Endpoints.Builder()
.dnsName(dnsName)
.clusterId(clusterId)
.scope(scope)
.routingMethod(routingMethod)
.weight(weight)
.hosts(hosts)
.build()));
}
private Map<TenantName, Set<ApplicationInfo>> randomizeApplications(Map<TenantName, Set<ApplicationInfo>> testModel, int seed) {
Map<TenantName, Set<ApplicationInfo>> randomizedApplications = new LinkedHashMap<>();
List<TenantName> keys = new ArrayList<>(testModel.keySet());
Collections.shuffle(keys, new Random(seed));
for (TenantName key : keys) {
randomizedApplications.put(key, testModel.get(key));
}
return randomizedApplications;
}
private Map<TenantName, Set<ApplicationInfo>> createTestModel(DeployState.Builder deployStateBuilder) {
Map<TenantName, Set<ApplicationInfo>> tMap = new LinkedHashMap<>();
TenantName foo = TenantName.from("foo");
TenantName bar = TenantName.from("bar");
TenantName baz = TenantName.from("baz");
tMap.put(foo, createTestApplications(foo, deployStateBuilder));
tMap.put(bar, createTestApplications(bar, deployStateBuilder));
tMap.put(baz, createTestApplications(baz, deployStateBuilder));
return tMap;
}
private Set<ApplicationInfo> createTestApplications(TenantName tenant, DeployState.Builder deployStateBuilder) {
ApplicationId fooApp = new ApplicationId.Builder().tenant(tenant).applicationName("foo").build();
ApplicationId barApp = new ApplicationId.Builder().tenant(tenant).applicationName("bar").build();
ApplicationId bazApp = new ApplicationId.Builder().tenant(tenant).applicationName("baz").instanceName("custom-t").build(); // tester app
return new LinkedHashSet<>(createApplication(List.of(fooApp, barApp, bazApp), deployStateBuilder));
}
private Set<ApplicationInfo> createApplication(List<ApplicationId> appIds, DeployState.Builder deployStateBuilder) {
Set<ApplicationInfo> applicationInfoSet = new HashSet<>();
List<String> hostnames = new ArrayList<>();
appIds.forEach(appId -> {
deployStateBuilder.properties(getTestproperties(appId));
hostnames.add(appId.tenant() + "." + appId.application() + ".yahoo.com");
hostnames.add(appId.tenant().value() + "." + appId.application().value() + "2.yahoo.com");
try {
InMemoryProvisioner provisioner = new InMemoryProvisioner(true, false, hostnames);
deployStateBuilder.modelHostProvisioner(provisioner);
applicationInfoSet.add(new ApplicationInfo(appId, 3, createVespaModel(createApplicationPackage(), deployStateBuilder)));
} catch (IOException | SAXException e) {
throw new RuntimeException(e);
}
});
return applicationInfoSet;
}
private ApplicationPackage createApplicationPackage() {
String services = "<services>" +
"<admin version='4.0'><logservers> <nodes count='1' /> </logservers></admin>" +
" <container id='mydisc' version='1.0'>" +
" <nodes count='1' />" +
" <search/>" +
" </container>" +
"</services>";
String deploymentInfo = "<?xml version='1.0' encoding='UTF-8'?>" +
"<deployment version='1.0'>" +
" <test />" +
" <prod>" +
" <region>us-east-1</region>" +
" <region>us-east-2</region>" +
" </prod>" +
" <endpoints>" +
" <endpoint container-id='mydisc' />" +
" </endpoints>" +
"</deployment>";
return new MockApplicationPackage.Builder().withServices(services).withDeploymentSpec(deploymentInfo).build();
}
private Model createVespaModel(ApplicationPackage applicationPackage, DeployState.Builder deployStateBuilder) throws IOException, SAXException {
return new VespaModel(new NullConfigModelRegistry(), deployStateBuilder.applicationPackage(applicationPackage).build());
}
private void assertConfig(LbServicesConfig expected, LbServicesConfig actual) {
assertFalse(expected.toString().isEmpty());
assertFalse(actual.toString().isEmpty());
assertEquals(actual.toString(), expected.toString());
assertEquals(ConfigPayload.fromInstance(expected).toString(true), ConfigPayload.fromInstance(actual).toString(true));
}
private TestProperties getTestproperties(ApplicationId applicationId) {
return new TestProperties()
.setHostedVespa(true)
.setApplicationId(applicationId);
}
}
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