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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.service.health;
import ai.vespa.http.DomainName;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.model.api.HostInfo;
import com.yahoo.config.model.api.PortInfo;
import com.yahoo.config.model.api.ServiceInfo;
import com.yahoo.vespa.service.executor.RunletExecutor;
import com.yahoo.vespa.service.model.ApplicationInstanceGenerator;
import com.yahoo.vespa.service.monitor.ServiceId;
import java.time.Duration;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* @author hakonhall
*/
public class StateV1HealthModel implements AutoCloseable {
private static final String PORT_TAG_STATE = "STATE";
private static final String PORT_TAG_HTTP = "HTTP";
/** Port tags implying /state/v1/health is served on HTTP. */
public static final List<String> HTTP_HEALTH_PORT_TAGS = List.of(PORT_TAG_HTTP, PORT_TAG_STATE);
private final Duration targetHealthStaleness;
private final Duration requestTimeout;
private final Duration connectionKeepAlive;
private final RunletExecutor executor;
StateV1HealthModel(Duration targetHealthStaleness,
Duration requestTimeout,
Duration connectionKeepAlive,
RunletExecutor executor) {
this.targetHealthStaleness = targetHealthStaleness;
this.requestTimeout = requestTimeout;
this.connectionKeepAlive = connectionKeepAlive;
this.executor = executor;
}
Map<ServiceId, HealthEndpoint> extractHealthEndpoints(ApplicationInfo application) {
Map<ServiceId, HealthEndpoint> endpoints = new HashMap<>();
for (HostInfo hostInfo : application.getModel().getHosts()) {
DomainName hostname = DomainName.of(hostInfo.getHostname());
for (ServiceInfo serviceInfo : hostInfo.getServices()) {
ServiceId serviceId = ApplicationInstanceGenerator.getServiceId(application, serviceInfo);
for (PortInfo portInfo : serviceInfo.getPorts()) {
if (portTaggedWith(portInfo, HTTP_HEALTH_PORT_TAGS)) {
StateV1HealthEndpoint endpoint = new StateV1HealthEndpoint(
serviceId,
hostname,
portInfo.getPort(),
targetHealthStaleness,
requestTimeout,
connectionKeepAlive,
executor);
endpoints.put(serviceId, endpoint);
break; // Avoid >1 endpoints per serviceId
}
}
}
}
return endpoints;
}
static boolean portTaggedWith(PortInfo portInfo, List<String> requiredTags) {
// vespa-model-inspect displays upper case tags, while actual tags for (at least) node-admin are lower case.
Collection<String> upperCasePortTags = portInfo.getTags().stream().map(String::toUpperCase).collect(Collectors.toSet());
for (var tag : requiredTags) {
if (!upperCasePortTags.contains(tag.toUpperCase())) {
return false;
}
}
return true;
}
@Override
public void close() {
executor.close();
}
}
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