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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.application;
import com.yahoo.component.Version;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.InstanceName;
import com.yahoo.config.provision.NodeType;
import com.yahoo.config.provision.TenantName;
import com.yahoo.config.provision.zone.ZoneId;
import com.yahoo.text.Text;
import com.yahoo.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.api.identifiers.DeploymentId;
import com.yahoo.vespa.hosted.controller.api.integration.configserver.ServiceConvergence;
import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneRegistry;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.List;
import java.util.Optional;
/**
* This represents a system-level application in hosted Vespa. All infrastructure nodes in a hosted Vespa zones are
* allocated to a system application.
*
* @author mpolden
*/
public enum SystemApplication {
controllerHost("controller-host", NodeType.controllerhost),
configServerHost("configserver-host", NodeType.confighost),
configServer("zone-config-servers", NodeType.config),
proxyHost("proxy-host", NodeType.proxyhost),
proxy( "routing", NodeType.proxy, proxyHost, configServer),
tenantHost("tenant-host", NodeType.host);
/** The tenant owning all system applications */
public static final TenantName TENANT = TenantName.from(Constants.TENANT_NAME);
private final ApplicationId id;
private final NodeType nodeType;
private final List<SystemApplication> dependencies;
SystemApplication(String application, NodeType nodeType, SystemApplication... dependencies) {
this.id = ApplicationId.from(Constants.TENANT_NAME, application, InstanceName.defaultName().value());
this.nodeType = nodeType;
this.dependencies = List.of(dependencies);
}
public ApplicationId id() {
return id;
}
/** The node type that is implicitly allocated to this */
public NodeType nodeType() {
return nodeType;
}
/** Returns the system applications that should upgrade before this */
public List<SystemApplication> dependencies() { return dependencies; }
/** Returns whether this system application has an application package */
public boolean hasApplicationPackage() {
return this == proxy;
}
/** Returns whether config for this application has converged in given zone */
public boolean configConvergedIn(ZoneId zone, Controller controller, Optional<Version> version) {
if (!hasApplicationPackage()) {
return true;
}
return controller.serviceRegistry().configServer().serviceConvergence(new DeploymentId(id(), zone), version)
.map(ServiceConvergence::converged)
.orElse(false);
}
/** Returns whether this should receive OS upgrades */
public boolean shouldUpgradeOs() {
return nodeType.isHost();
}
/** Returns whether this has an endpoint */
public boolean hasEndpoint() {
return this == configServer;
}
/** Returns the endpoint of this, if any */
public Optional<Endpoint> endpointIn(ZoneId zone, ZoneRegistry zoneRegistry) {
if (!hasEndpoint()) return Optional.empty();
return Optional.of(Endpoint.of(this, zone, zoneRegistry.getConfigServerVipUri(zone)));
}
/** All system applications that are not the controller */
public static List<SystemApplication> notController() {
return List.copyOf(EnumSet.complementOf(EnumSet.of(SystemApplication.controllerHost)));
}
/** All system applications */
public static List<SystemApplication> all() {
return List.of(values());
}
/** Returns the system application matching given id, if any */
public static Optional<SystemApplication> matching(ApplicationId id) {
return Arrays.stream(values()).filter(app -> app.id().equals(id)).findFirst();
}
@Override
public String toString() {
return Text.format("system application %s of type %s", id, nodeType);
}
private static class Constants {
private static final String TENANT_NAME = "hosted-vespa";
}
}
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