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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.config.provision.zone.ZoneId;
import com.yahoo.vespa.hosted.controller.Application;
import com.yahoo.vespa.hosted.controller.ApplicationController;
import com.yahoo.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.Instance;
import com.yahoo.vespa.hosted.controller.api.integration.organization.ApplicationSummary;
import com.yahoo.vespa.hosted.controller.api.integration.organization.IssueId;
import com.yahoo.vespa.hosted.controller.api.integration.organization.OwnershipIssues;
import com.yahoo.vespa.hosted.controller.api.integration.organization.User;
import com.yahoo.vespa.hosted.controller.application.ApplicationList;
import com.yahoo.vespa.hosted.controller.application.TenantAndApplicationId;
import com.yahoo.vespa.hosted.controller.tenant.Tenant;
import com.yahoo.yolean.Exceptions;
import java.time.Duration;
import java.util.HashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
/**
* Periodically request application ownership confirmation through filing issues.
*
* When to file new issues, escalate inactive ones, etc., is handled by the enclosed OwnershipIssues.
*
* @author jonmv
*/
public class ApplicationOwnershipConfirmer extends ControllerMaintainer {
private final OwnershipIssues ownershipIssues;
private final ApplicationController applications;
public ApplicationOwnershipConfirmer(Controller controller, Duration interval, OwnershipIssues ownershipIssues) {
super(controller, interval);
this.ownershipIssues = ownershipIssues;
this.applications = controller.applications();
}
@Override
protected boolean maintain() {
return confirmApplicationOwnerships() &
ensureConfirmationResponses() &
updateConfirmedApplicationOwners();
}
/** File an ownership issue with the owners of all applications we know about. */
private boolean confirmApplicationOwnerships() {
AtomicBoolean success = new AtomicBoolean(true);
applications()
.withProjectId()
.withProductionDeployment()
.asList()
.stream()
.filter(application -> application.createdAt().isBefore(controller().clock().instant().minus(Duration.ofDays(90))))
.forEach(application -> {
try {
// TODO jvenstad: Makes sense to require, and run this only in main?
tenantOf(application.id()).contact().flatMap(contact -> {
return ownershipIssues.confirmOwnership(application.ownershipIssueId(),
summaryOf(application.id()),
determineAssignee(application),
contact);
}).ifPresent(newIssueId -> store(newIssueId, application.id()));
}
catch (RuntimeException e) { // Catch errors due to wrong data in the controller, or issues client timeout.
success.set(false);
log.log(Level.INFO, "Exception caught when attempting to file an issue for '" + application.id() + "': " + Exceptions.toMessageString(e));
}
});
return success.get();
}
private ApplicationSummary summaryOf(TenantAndApplicationId application) {
var app = applications.requireApplication(application);
var metrics = new HashMap<ZoneId, ApplicationSummary.Metric>();
for (Instance instance : app.instances().values())
for (var kv : instance.deployments().entrySet()) {
var zone = kv.getKey();
var deploymentMetrics = kv.getValue().metrics();
metrics.put(zone, new ApplicationSummary.Metric(deploymentMetrics.documentCount(),
deploymentMetrics.queriesPerSecond(),
deploymentMetrics.writesPerSecond()));
}
return new ApplicationSummary(app.id().defaultInstance(), app.activity().lastQueried(), app.activity().lastWritten(),
app.latestVersion().flatMap(version -> version.buildTime()), metrics);
}
/** Escalate ownership issues which have not been closed before a defined amount of time has passed. */
private boolean ensureConfirmationResponses() {
AtomicBoolean success = new AtomicBoolean(true);
for (Application application : applications())
application.ownershipIssueId().ifPresent(issueId -> {
try {
Tenant tenant = tenantOf(application.id());
ownershipIssues.ensureResponse(issueId, tenant.contact());
}
catch (RuntimeException e) {
success.set(false);
log.log(Level.INFO, "Exception caught when attempting to escalate issue with id '" + issueId + "': " + Exceptions.toMessageString(e));
}
});
return success.get();
}
private boolean updateConfirmedApplicationOwners() {
applications()
.withProjectId()
.withProductionDeployment()
.asList()
.stream()
.filter(application -> application.ownershipIssueId().isPresent())
.forEach(application -> {
IssueId ownershipIssueId = application.ownershipIssueId().get();
ownershipIssues.getConfirmedOwner(ownershipIssueId).ifPresent(owner -> {
controller().applications().lockApplicationIfPresent(application.id(), lockedApplication ->
controller().applications().store(lockedApplication.withOwner(owner)));
});
});
return true;
}
private ApplicationList applications() {
return ApplicationList.from(controller().applications().readable());
}
private User determineAssignee(Application application) {
return application.owner().orElse(null);
}
private Tenant tenantOf(TenantAndApplicationId applicationId) {
return controller().tenants().get(applicationId.tenant())
.orElseThrow(() -> new IllegalStateException("No tenant found for application " + applicationId));
}
protected void store(IssueId issueId, TenantAndApplicationId applicationId) {
controller().applications().lockApplicationIfPresent(applicationId, application ->
controller().applications().store(application.withOwnershipIssueId(issueId)));
}
}
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