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// Copyright Verizon Media. 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.HostName;
import com.yahoo.config.provision.NodeType;
import com.yahoo.config.provision.zone.ZoneId;
import com.yahoo.vespa.hosted.controller.ControllerTester;
import com.yahoo.vespa.hosted.controller.api.integration.configserver.Node;
import com.yahoo.vespa.hosted.controller.api.integration.entity.NodeEntity;
import org.junit.Test;
import java.time.Duration;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
/**
* @author mpolden
*/
public class HostSwitchUpdaterTest {
@Test
public void maintain() {
ControllerTester tester = new ControllerTester();
tester.serviceRegistry().configServer().nodeRepository().allowPatching(true);
addNodeEntities(tester);
// First iteration patches all hosts
HostSwitchUpdater maintainer = new HostSwitchUpdater(tester.controller(), Duration.ofDays(1));
maintainer.maintain();
List<Node> nodes = allNodes(tester);
assertFalse(nodes.isEmpty());
for (var node : nodes) {
assertEquals("Node " + node.hostname().value() + (node.type().isHost() ? " has" : " does not have")
+ " switch hostname", node.type().isHost(), node.switchHostname().isPresent());
if (node.type().isHost()) {
assertEquals("tor-" + node.hostname().value(), node.switchHostname().get());
}
}
// Second iteration does not patch anything as all switch information is current
tester.serviceRegistry().configServer().nodeRepository().allowPatching(false);
maintainer.maintain();
// One host is moved to a different switch
Node host = allNodes(tester).stream().filter(node -> node.type().isHost()).findFirst().get();
String newSwitch = "tor2-" + host.hostname().value();
NodeEntity nodeEntity = new NodeEntity(host.hostname().value(), "", "", newSwitch);
tester.serviceRegistry().entityService().addNodeEntity(nodeEntity);
// Host is updated
tester.serviceRegistry().configServer().nodeRepository().allowPatching(true);
maintainer.maintain();
assertEquals(newSwitch, getNode(host.hostname(), tester).switchHostname().get());
// Host keeps old switch hostname if removed from the node entity
nodeEntity = new NodeEntity(host.hostname().value(), "", "", "");
tester.serviceRegistry().entityService().addNodeEntity(nodeEntity);
maintainer.maintain();
assertEquals(newSwitch, getNode(host.hostname(), tester).switchHostname().get());
// Updates node registered under a different hostname
ZoneId zone = tester.zoneRegistry().zones().controllerUpgraded().all().ids().get(0);
String hostnameSuffix = ".prod." + zone.value();
Node configHost = new Node.Builder().hostname(HostName.from("cfghost3" + hostnameSuffix))
.type(NodeType.confighost)
.build();
tester.serviceRegistry().configServer().nodeRepository().putNodes(zone, configHost);
String switchHostname = switchHostname(configHost);
NodeEntity configNodeEntity = new NodeEntity("cfg3" + hostnameSuffix, "", "", switchHostname);
tester.serviceRegistry().entityService().addNodeEntity(configNodeEntity);
maintainer.maintain();
assertEquals(switchHostname, getNode(configHost.hostname(), tester).switchHostname().get());
}
private static Node getNode(HostName hostname, ControllerTester tester) {
return allNodes(tester).stream()
.filter(node -> node.hostname().equals(hostname))
.findFirst()
.orElseThrow(() -> new IllegalArgumentException("No such node: " + hostname));
}
private static List<Node> allNodes(ControllerTester tester) {
List<Node> nodes = new ArrayList<>();
for (var zone : tester.zoneRegistry().zones().controllerUpgraded().all().ids()) {
nodes.addAll(tester.serviceRegistry().configServer().nodeRepository().list(zone));
}
return nodes;
}
private static String switchHostname(Node node) {
return "tor-" + node.hostname().value();
}
private static void addNodeEntities(ControllerTester tester) {
for (var node : allNodes(tester)) {
if (!node.type().isHost()) continue;
NodeEntity nodeEntity = new NodeEntity(node.hostname().value(), "", "", switchHostname(node));
tester.serviceRegistry().entityService().addNodeEntity(nodeEntity);
}
}
}
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