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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.hosted.controller.maintenance;
import com.yahoo.component.Version;
import com.yahoo.config.provision.CloudName;
import com.yahoo.config.provision.SystemName;
import com.yahoo.config.provision.zone.NodeSlice;
import com.yahoo.config.provision.zone.ZoneApi;
import com.yahoo.text.Text;
import com.yahoo.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.api.integration.configserver.Node;
import com.yahoo.vespa.hosted.controller.application.SystemApplication;
import com.yahoo.vespa.hosted.controller.versions.VersionStatus;
import com.yahoo.vespa.hosted.controller.versions.VespaVersion;
import com.yahoo.vespa.hosted.controller.versions.VespaVersionTarget;
import java.time.Duration;
import java.util.Optional;
import java.util.Set;
import java.util.logging.Logger;
/**
* Maintenance job which upgrades system applications.
*
* @author mpolden
*/
public class SystemUpgrader extends InfrastructureUpgrader<VespaVersionTarget> {
private static final Logger log = Logger.getLogger(SystemUpgrader.class.getName());
private static final Set<Node.State> upgradableNodeStates = Set.of(Node.State.active, Node.State.reserved);
public SystemUpgrader(Controller controller, Duration interval) {
super(controller, interval, controller.zoneRegistry().upgradePolicy(), SystemApplication.notController(), null);
}
@Override
protected void upgrade(VespaVersionTarget target, SystemApplication application, ZoneApi zone) {
log.info(Text.format("Deploying %s on %s in %s", application.id(), target, zone.getId()));
controller().applications().deploy(application, zone.getId(), target.version(), target.downgrade());
}
@Override
protected boolean convergedOn(VespaVersionTarget target, SystemApplication application, ZoneApi zone, NodeSlice nodeSlice) {
Optional<Version> currentVersion = versionOf(nodeSlice, zone, application, Node::currentVersion, target.downgrade());
// Skip application convergence check if there are no nodes belonging to the application in the zone
if (currentVersion.isEmpty()) return true;
return currentVersion.get().equals(target.version()) &&
application.configConvergedIn(zone.getId(), controller(), Optional.of(target.version()));
}
@Override
protected boolean expectUpgradeOf(Node node, SystemApplication application, ZoneApi zone) {
// Temporary hack until GCP enclave works again
if (zone.getCloudName().equals(CloudName.GCP) && node.hostname().value().startsWith("e"))
return false;
return eligibleForUpgrade(node);
}
@Override
protected Optional<VespaVersionTarget> target() {
VersionStatus status = controller().readVersionStatus();
Optional<VespaVersion> target = status.controllerVersion()
.filter(version -> {
Version systemVersion = status.systemVersion()
.map(VespaVersion::versionNumber)
.orElse(Version.emptyVersion);
return version.versionNumber().isAfter(systemVersion);
})
.filter(version -> version.confidence() != VespaVersion.Confidence.broken);
boolean downgrade = target.isPresent() && target.get().confidence() == VespaVersion.Confidence.aborted;
if (downgrade) {
target = status.systemVersion();
}
return target.map(VespaVersion::versionNumber)
.map(version -> new VespaVersionTarget(version, downgrade));
}
@Override
protected boolean changeTargetTo(VespaVersionTarget target, SystemApplication application, ZoneApi zone) {
if (application.hasApplicationPackage()) {
// For applications with package we do not have a zone-wide version target. This means that we must check
// the wanted version of each node.
boolean zoneHasSharedRouting = controller().zoneRegistry().routingMethod(zone.getId()).isShared();
return versionOf(NodeSlice.ALL, zone, application, Node::wantedVersion, target.downgrade())
.map(wantedVersion -> !wantedVersion.equals(target.version()))
.orElse(zoneHasSharedRouting); // Always upgrade if zone uses shared routing, but has no nodes allocated yet
}
return controller().serviceRegistry().configServer().nodeRepository()
.targetVersionsOf(zone.getId())
.vespaVersion(application.nodeType())
.map(wantedVersion -> !wantedVersion.equals(target.version()))
.orElse(true); // Always set target if there are no nodes
}
/** Returns whether node in application should be upgraded by this */
public static boolean eligibleForUpgrade(Node node) {
return upgradableNodeStates.contains(node.state());
}
}
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