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// Copyright 2018 Yahoo Holdings. 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.zone.ZoneApi;
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.VespaVersion;
import java.time.Duration;
import java.util.EnumSet;
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 {
private static final Logger log = Logger.getLogger(SystemUpgrader.class.getName());
private static final Set<Node.State> upgradableNodeStates = EnumSet.of(Node.State.active, Node.State.reserved);
public SystemUpgrader(Controller controller, Duration interval, JobControl jobControl) {
super(controller, interval, jobControl, controller.zoneRegistry().upgradePolicy(), null);
}
@Override
protected void upgrade(Version target, SystemApplication application, ZoneApi zone) {
if (minVersion(zone, application, Node::wantedVersion).map(target::isAfter)
.orElse(true)) {
log.info(String.format("Deploying %s version %s in %s", application.id(), target, zone.getId()));
controller().applications().deploy(application, zone.toDeprecatedId(), target);
}
}
@Override
protected boolean convergedOn(Version target, SystemApplication application, ZoneApi zone) {
Optional<Version> minVersion = minVersion(zone, application, Node::currentVersion);
// Skip application convergence check if there are no nodes belonging to the application in the zone
if (minVersion.isEmpty()) return true;
return minVersion.get().equals(target)
&& application.configConvergedIn(zone.toDeprecatedId(), controller(), Optional.of(target));
}
@Override
protected boolean requireUpgradeOf(Node node, SystemApplication application, ZoneApi zone) {
return eligibleForUpgrade(node);
}
@Override
protected Optional<Version> targetVersion() {
return controller().versionStatus().controllerVersion()
.filter(vespaVersion -> !vespaVersion.isSystemVersion())
.filter(vespaVersion -> vespaVersion.confidence() != VespaVersion.Confidence.broken)
.map(VespaVersion::versionNumber);
}
/** 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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