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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.config.server.deploy;
import com.yahoo.component.Version;
import com.yahoo.config.model.api.HostProvisioner;
import com.yahoo.config.model.api.ModelFactory;
import com.yahoo.config.provision.Capacity;
import com.yahoo.config.provision.ClusterMembership;
import com.yahoo.config.provision.ClusterSpec;
import com.yahoo.config.provision.HostSpec;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.config.provision.ProvisionLogger;
import com.yahoo.config.provision.Zone;
import com.yahoo.vespa.config.server.MockProvisioner;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import static com.yahoo.vespa.config.server.deploy.DeployTester.createHostedModelFactory;
import static org.junit.Assert.assertEquals;
public class HostedDeployNodeAllocationTest {
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
@Test
public void testDeployMultipleVersionsCreatingDifferentHosts() {
List<ModelFactory> modelFactories = List.of(createHostedModelFactory(Version.fromString("7.2")),
createHostedModelFactory(Version.fromString("7.3")));
var provisioner = new VersionProvisioner();
DeployTester tester = new DeployTester.Builder(temporaryFolder).modelFactories(modelFactories)
.provisioner(new MockProvisioner().hostProvisioner(provisioner))
.hostedConfigserverConfig(Zone.defaultZone())
.build();
tester.deployApp("src/test/apps/hosted/", "7.3");
var hosts = containers(tester.getAllocatedHostsOf(tester.applicationId()).getHosts());
assertEquals("Allocating the superset of hosts of each version", 5, hosts.size());
assertEquals(resources(3), get("host0", hosts).advertisedResources());
assertEquals(resources(3), get("host1", hosts).advertisedResources());
assertEquals(resources(3), get("host2", hosts).advertisedResources());
assertEquals(resources(2), get("host3", hosts).advertisedResources());
assertEquals(resources(2), get("host4", hosts).advertisedResources());
}
private HostSpec get(String hostname, Set<HostSpec> hosts) {
return hosts.stream().filter(host -> host.hostname().equals(hostname)).findAny().orElseThrow();
}
private Set<HostSpec> containers(Set<HostSpec> hosts) {
return hosts.stream().filter(host -> host.membership().get().cluster().type() == ClusterSpec.Type.container).collect(Collectors.toSet());
}
private static NodeResources resources(double vcpu) {
return new NodeResources(vcpu, 1, 1, 1);
}
private static class VersionProvisioner implements HostProvisioner {
int invocation = 0;
@Override
public HostSpec allocateHost(String alias) {
throw new RuntimeException();
}
@Override
public List<HostSpec> prepare(ClusterSpec cluster, Capacity capacity, ProvisionLogger logger) {
if (cluster.id().value().equals("container")) { // the container cluster from the app package: Use this to test
if (invocation == 0) { // Building the latest model version, 7.3: Always first
invocation++;
// Returns nodes which are on both versions to trigger building old versions
return List.of(host("host0", resources(3), 0, "7.3", cluster),
host("host1", resources(3), 1, "7.3", cluster),
host("host2", resources(3), 2, "7.2", cluster));
} else if (invocation == 1) { // Building 7.2
invocation++;
return List.of(host("host2", resources(2), 2, "7.2", cluster),
host("host3", resources(2), 3, "7.2", cluster),
host("host4", resources(2), 4, "7.2", cluster));
} else {
throw new RuntimeException("Unexpected third invocation");
}
}
else { // for other clusters just return the requested hosts
List<HostSpec> hosts = new ArrayList<>();
for (int i = 0; i < capacity.maxResources().nodes(); i++) {
hosts.add(host(cluster.id().value() + i,
capacity.maxResources().nodeResources(),
i,
cluster.vespaVersion().toString(),
cluster));
}
return hosts;
}
}
private HostSpec host(String hostname, NodeResources resources, int index, String version, ClusterSpec cluster) {
var membership = ClusterMembership.from(cluster.with(Optional.of(ClusterSpec.Group.from(index))), index);
return new HostSpec(hostname,
resources,
resources,
resources,
membership,
Optional.of(Version.fromString(version)),
Optional.empty(),
Optional.empty());
}
}
}
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