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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.config.provision.SystemName;
import com.yahoo.config.provision.TenantName;
import com.yahoo.vespa.flags.ListFlag;
import com.yahoo.vespa.flags.PermanentFlags;
import com.yahoo.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.api.integration.billing.PlanId;
import com.yahoo.vespa.hosted.controller.tenant.LastLoginInfo;
import com.yahoo.vespa.hosted.controller.tenant.Tenant;
import java.time.Duration;
import java.util.List;
import java.util.Optional;
import java.util.function.Predicate;
import java.util.logging.Logger;
import java.util.stream.Collectors;
/**
* Expires unused tenants from Vespa Cloud.
* <p>
* TODO: Should support sending notifications some time before the various expiry events happen.
*
* @author ogronnesby
*/
public class CloudTrialExpirer extends ControllerMaintainer {
private static final Logger log = Logger.getLogger(CloudTrialExpirer.class.getName());
private static final Duration nonePlanAfter = Duration.ofDays(14);
private static final Duration tombstoneAfter = Duration.ofDays(183);
private final ListFlag<String> extendedTrialTenants;
public CloudTrialExpirer(Controller controller, Duration interval) {
super(controller, interval, null, SystemName.allOf(SystemName::isPublic));
this.extendedTrialTenants = PermanentFlags.EXTENDED_TRIAL_TENANTS.bindTo(controller().flagSource());
}
@Override
protected double maintain() {
var a = tombstoneNonePlanTenants();
var b = moveInactiveTenantsToNonePlan();
return (a ? 0.5 : 0.0) + (b ? 0.5 : 0.0);
}
private boolean moveInactiveTenantsToNonePlan() {
var idleTrialTenants = controller().tenants().asList().stream()
.filter(this::tenantIsCloudTenant)
.filter(this::tenantIsNotExemptFromExpiry)
.filter(this::tenantHasNoDeployments)
.filter(this::tenantHasTrialPlan)
.filter(tenantReadersNotLoggedIn(nonePlanAfter))
.toList();
if (! idleTrialTenants.isEmpty()) {
var tenants = idleTrialTenants.stream().map(Tenant::name).map(TenantName::value).collect(Collectors.joining(", "));
log.info("Setting tenants to 'none' plan: " + tenants);
}
return setPlanNone(idleTrialTenants);
}
private boolean tombstoneNonePlanTenants() {
var idleOldPlanTenants = controller().tenants().asList().stream()
.filter(this::tenantIsCloudTenant)
.filter(this::tenantIsNotExemptFromExpiry)
.filter(this::tenantHasNoDeployments)
.filter(this::tenantHasNonePlan)
.filter(tenantReadersNotLoggedIn(tombstoneAfter))
.toList();
if (! idleOldPlanTenants.isEmpty()) {
var tenants = idleOldPlanTenants.stream().map(Tenant::name).map(TenantName::value).collect(Collectors.joining(", "));
log.info("Setting tenants as tombstoned: " + tenants);
}
return tombstoneTenants(idleOldPlanTenants);
}
private boolean tenantIsCloudTenant(Tenant tenant) {
return tenant.type() == Tenant.Type.cloud;
}
private Predicate<Tenant> tenantReadersNotLoggedIn(Duration duration) {
// returns true if no user has logged in to the tenant after (now - duration)
return (Tenant tenant) -> {
var timeLimit = controller().clock().instant().minus(duration);
return tenant.lastLoginInfo().get(LastLoginInfo.UserLevel.user)
.map(instant -> instant.isBefore(timeLimit))
.orElse(false);
};
}
private boolean tenantHasTrialPlan(Tenant tenant) {
var planId = controller().serviceRegistry().billingController().getPlan(tenant.name());
return "trial".equals(planId.value());
}
private boolean tenantHasNonePlan(Tenant tenant) {
var planId = controller().serviceRegistry().billingController().getPlan(tenant.name());
return "none".equals(planId.value());
}
private boolean tenantIsNotExemptFromExpiry(Tenant tenant) {
return !extendedTrialTenants.value().contains(tenant.name().value());
}
private boolean tenantHasNoDeployments(Tenant tenant) {
return controller().applications().asList(tenant.name()).stream()
.flatMap(app -> app.instances().values().stream())
.mapToLong(instance -> instance.deployments().values().size())
.sum() == 0;
}
private boolean setPlanNone(List<Tenant> tenants) {
var success = true;
for (var tenant : tenants) {
try {
controller().serviceRegistry().billingController().setPlan(tenant.name(), PlanId.from("none"), false, false);
} catch (RuntimeException e) {
log.info("Could not change plan for " + tenant.name() + ": " + e.getMessage());
success = false;
}
}
return success;
}
private boolean tombstoneTenants(List<Tenant> tenants) {
var success = true;
for (var tenant : tenants) {
success &= deleteApplicationsWithNoDeployments(tenant);
log.fine("Tombstoning empty tenant: " + tenant.name());
try {
controller().tenants().delete(tenant.name(), Optional.empty(), false);
} catch (RuntimeException e) {
log.info("Could not tombstone tenant " + tenant.name() + ": " + e.getMessage());
success = false;
}
}
return success;
}
private boolean deleteApplicationsWithNoDeployments(Tenant tenant) {
// this method only removes applications with no active deployments in them
var success = true;
for (var application : controller().applications().asList(tenant.name())) {
try {
log.fine("Removing empty application: " + application.id());
controller().applications().deleteApplication(application.id(), Optional.empty());
} catch (RuntimeException e) {
log.info("Could not removing application " + application.id() + ": " + e.getMessage());
success = false;
}
}
return success;
}
}
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