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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.hosted.provision.maintenance;
import com.yahoo.component.Version;
import com.yahoo.config.provision.ClusterMembership;
import com.yahoo.config.provision.ClusterSpec;
import com.yahoo.config.provision.NodeType;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.node.Agent;
import com.yahoo.vespa.hosted.provision.node.Allocation;
import com.yahoo.vespa.hosted.provision.node.Status;
import com.yahoo.vespa.hosted.provision.provisioning.ProvisioningTester;
import org.junit.Test;
import java.time.Duration;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Optional;
import java.util.stream.Stream;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author mpolden
*/
public class OsUpgradeActivatorTest {
private final ProvisioningTester tester = new ProvisioningTester.Builder().build();
@Test
public void activates_upgrade() {
var osVersions = tester.nodeRepository().osVersions();
var osUpgradeActivator = new OsUpgradeActivator(tester.nodeRepository(), Duration.ofDays(1), new TestMetric());
var version0 = Version.fromString("7.0");
// Create infrastructure nodes
var configHostNodes = tester.makeReadyNodes(3, "default", NodeType.confighost, 1);
tester.prepareAndActivateInfraApplication(NodeType.confighost, version0);
var tenantHostNodes = tester.makeReadyNodes(3, "default", NodeType.host, 1);
tester.prepareAndActivateInfraApplication(NodeType.host, version0);
tester.clock().advance(Duration.ofDays(1).plusSeconds(1)); // Let grace period pass
var allNodes = new ArrayList<>(configHostNodes);
allNodes.addAll(tenantHostNodes);
// All nodes are on initial version
assertEquals(version0, minWantedVersion(allNodes));
completeUpgradeOf(configHostNodes);
completeUpgradeOf(tenantHostNodes);
assertEquals("All nodes are on initial version", version0, minCurrentVersion(allNodes));
// New OS target version is set
var osVersion0 = Version.fromString("8.0");
osVersions.setTarget(NodeType.host, osVersion0, false);
osVersions.setTarget(NodeType.confighost, osVersion0, false);
// New OS version is activated as there is no ongoing Vespa upgrade
osUpgradeActivator.maintain();
assertTrue("OS version " + osVersion0 + " is active", osUpgradeActive(NodeType.confighost, NodeType.host));
// Tenant hosts start upgrading to next Vespa version
var version1 = Version.fromString("7.1");
tester.prepareAndActivateInfraApplication(NodeType.host, version1);
assertEquals("Wanted version of " + NodeType.host + " is raised", version1,
minWantedVersion(tenantHostNodes));
// Activator pauses upgrade for tenant hosts only
osUpgradeActivator.maintain();
assertTrue("OS version " + osVersion0 + " is active", osUpgradeActive(NodeType.confighost));
assertFalse("OS version " + osVersion0 + " is inactive", osUpgradeActive(NodeType.host));
// One tenant host fails and is no longer considered
tester.nodeRepository().nodes().fail(tenantHostNodes.get(0).hostname(), Agent.system, this.getClass().getSimpleName());
// Remaining hosts complete their Vespa upgrade
var healthyTenantHostNodes = tenantHostNodes.subList(1, tenantHostNodes.size());
completeUpgradeOf(healthyTenantHostNodes);
assertEquals("Tenant hosts upgraded", version1, minCurrentVersion(healthyTenantHostNodes));
// Activator resumes OS upgrade of tenant hosts
osUpgradeActivator.run();
assertTrue("OS version " + osVersion0 + " is active", osUpgradeActive(NodeType.confighost, NodeType.host));
}
private boolean osUpgradeActive(NodeType first, NodeType... rest) {
return tester.nodeRepository().nodes().list().nodeType(first, rest).changingOsVersion().size() > 0;
}
private void completeUpgradeOf(List<Node> nodes) {
tester.patchNodes(nodes, (node) -> node.with(node.status().withVespaVersion(node.allocation().get().membership().cluster().vespaVersion())));
}
private Stream<Node> streamUpdatedNodes(List<Node> nodes) {
return tester.nodeRepository().nodes().list().stream().filter(nodes::contains);
}
private Version minCurrentVersion(List<Node> nodes) {
return streamUpdatedNodes(nodes).map(Node::status)
.map(Status::vespaVersion)
.flatMap(Optional::stream)
.min(Comparator.naturalOrder())
.orElse(Version.emptyVersion);
}
private Version minWantedVersion(List<Node> nodes) {
return streamUpdatedNodes(nodes).map(Node::allocation)
.flatMap(Optional::stream)
.map(Allocation::membership)
.map(ClusterMembership::cluster)
.map(ClusterSpec::vespaVersion)
.min(Comparator.naturalOrder())
.orElse(Version.emptyVersion);
}
}
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