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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.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.api.integration.artifact.Artifact;
import com.yahoo.vespa.hosted.controller.api.integration.artifact.ArtifactRegistry;
import com.yahoo.vespa.hosted.controller.versions.VersionStatus;
import com.yahoo.vespa.hosted.controller.versions.VespaVersion;
import java.time.Duration;
import java.time.Instant;
import java.util.Comparator;
import java.util.EnumSet;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
/**
* Periodically expire unused artifacts, e.g. container images and RPMs.
*
* @author mpolden
*/
public class ArtifactExpirer extends ControllerMaintainer {
private static final Logger log = Logger.getLogger(ArtifactExpirer.class.getName());
private static final Duration MIN_AGE = Duration.ofDays(14);
public ArtifactExpirer(Controller controller, Duration interval) {
super(controller, interval, null, expiringSystems());
}
@Override
protected double maintain() {
VersionStatus versionStatus = controller().readVersionStatus();
return controller().clouds().stream()
.flatMapToDouble(cloud ->
controller().serviceRegistry().artifactRegistry(cloud).stream()
.mapToDouble(artifactRegistry -> maintain(versionStatus, cloud, artifactRegistry)))
.average()
.orElse(1);
}
private double maintain(VersionStatus versionStatus, CloudName cloudName, ArtifactRegistry artifactRegistry) {
try {
Instant now = controller().clock().instant();
List<Artifact> artifactsToExpire = artifactRegistry.list().stream()
.filter(artifact -> isExpired(artifact, now, versionStatus))
.toList();
if (!artifactsToExpire.isEmpty()) {
log.log(Level.INFO, "Expiring " + artifactsToExpire.size() + " artifacts in " + cloudName + ": " + artifactsToExpire);
artifactRegistry.deleteAll(artifactsToExpire);
}
return 1;
} catch (RuntimeException e) {
log.log(Level.WARNING, "Failed to expire artifacts in " + cloudName + ". Will retry in " + interval(), e);
return 0;
}
}
/** Returns whether given artifact is expired */
private boolean isExpired(Artifact artifact, Instant now, VersionStatus versionStatus) {
List<VespaVersion> versions = versionStatus.versions();
if (versions.isEmpty()) return false;
if (versionStatus.isActive(artifact.version())) return false;
if (artifact.createdAt().isAfter(now.minus(MIN_AGE))) return false;
Version maxVersion = versions.stream().map(VespaVersion::versionNumber).max(Comparator.naturalOrder()).get();
if (artifact.version().isAfter(maxVersion)) return false; // A future version
return true;
}
/** Returns systems where artifacts can be expired */
private static Set<SystemName> expiringSystems() {
// Run only in public and main. Public systems have distinct container registries, while main and CD have
// shared registries.
return EnumSet.of(SystemName.Public, SystemName.PublicCd, SystemName.main);
}
}
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