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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.restapi.deployment;
import com.yahoo.component.Version;
import com.yahoo.component.Vtag;
import com.yahoo.config.application.api.DeploymentInstanceSpec;
import com.yahoo.config.application.api.DeploymentSpec;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.HostName;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.container.jdisc.LoggingRequestHandler;
import com.yahoo.restapi.ErrorResponse;
import com.yahoo.restapi.Path;
import com.yahoo.restapi.SlimeJsonResponse;
import com.yahoo.restapi.Uri;
import com.yahoo.slime.Cursor;
import com.yahoo.slime.Slime;
import com.yahoo.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.application.ApplicationList;
import com.yahoo.vespa.hosted.controller.application.TenantAndApplicationId;
import com.yahoo.vespa.hosted.controller.deployment.DeploymentStatus;
import com.yahoo.vespa.hosted.controller.deployment.DeploymentStatusList;
import com.yahoo.vespa.hosted.controller.deployment.JobList;
import com.yahoo.vespa.hosted.controller.deployment.Run;
import com.yahoo.vespa.hosted.controller.deployment.RunStatus;
import com.yahoo.vespa.hosted.controller.restapi.application.EmptyResponse;
import com.yahoo.vespa.hosted.controller.versions.DeploymentStatistics;
import com.yahoo.vespa.hosted.controller.versions.VespaVersion;
import com.yahoo.yolean.Exceptions;
import java.time.Instant;
import java.util.Comparator;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Function;
import java.util.logging.Level;
import java.util.stream.Collectors;
import static java.util.stream.Collectors.groupingBy;
import static java.util.stream.Collectors.toUnmodifiableList;
import static java.util.stream.Collectors.toUnmodifiableMap;
/**
* This implements the deployment/v1 API which provides information about the status of Vespa platform and
* application deployments.
*
* @author bratseth
*/
@SuppressWarnings("unused") // Injected
public class DeploymentApiHandler extends LoggingRequestHandler {
private static final String OPTIONAL_PREFIX = "/api";
private final Controller controller;
public DeploymentApiHandler(LoggingRequestHandler.Context parentCtx, Controller controller) {
super(parentCtx);
this.controller = controller;
}
@Override
public HttpResponse handle(HttpRequest request) {
try {
switch (request.getMethod()) {
case GET: return handleGET(request);
case OPTIONS: return handleOPTIONS();
default: return ErrorResponse.methodNotAllowed("Method '" + request.getMethod() + "' is not supported");
}
}
catch (IllegalArgumentException e) {
return ErrorResponse.badRequest(Exceptions.toMessageString(e));
}
catch (RuntimeException e) {
log.log(Level.WARNING, "Unexpected error handling '" + request.getUri() + "'", e);
return ErrorResponse.internalServerError(Exceptions.toMessageString(e));
}
}
private HttpResponse handleGET(HttpRequest request) {
Path path = new Path(request.getUri(), OPTIONAL_PREFIX);
if (path.matches("/deployment/v1/")) return root(request);
return ErrorResponse.notFoundError("Nothing at " + path);
}
private HttpResponse handleOPTIONS() {
// We implement this to avoid redirect loops on OPTIONS requests from browsers, but do not really bother
// spelling out the methods supported at each path, which we should
EmptyResponse response = new EmptyResponse();
response.headers().put("Allow", "GET,OPTIONS");
return response;
}
private HttpResponse root(HttpRequest request) {
Slime slime = new Slime();
Cursor root = slime.setObject();
Cursor platformArray = root.setArray("versions");
var versionStatus = controller.versionStatus();
var systemVersion = versionStatus.systemVersion().map(VespaVersion::versionNumber).orElse(Vtag.currentVersion);
var deploymentStatuses = controller.jobController().deploymentStatuses(ApplicationList.from(controller.applications().asList()), systemVersion);
var deploymentStatistics = DeploymentStatistics.compute(versionStatus.versions().stream().map(VespaVersion::versionNumber).collect(Collectors.toList()),
deploymentStatuses)
.stream().collect(Collectors.toMap(DeploymentStatistics::version, Function.identity()));
for (VespaVersion version : versionStatus.versions()) {
Cursor versionObject = platformArray.addObject();
versionObject.setString("version", version.versionNumber().toString());
versionObject.setString("confidence", version.confidence().name());
versionObject.setString("commit", version.releaseCommit());
versionObject.setLong("date", version.committedAt().toEpochMilli());
versionObject.setBool("controllerVersion", version.isControllerVersion());
versionObject.setBool("systemVersion", version.isSystemVersion());
Cursor configServerArray = versionObject.setArray("configServers");
for (HostName hostname : version.nodeVersions().hostnames()) {
Cursor configServerObject = configServerArray.addObject();
configServerObject.setString("hostname", hostname.value());
}
Cursor failingArray = versionObject.setArray("failingApplications");
for (Run run : deploymentStatistics.get(version.versionNumber()).failingUpgrades()) {
Cursor applicationObject = failingArray.addObject();
toSlime(applicationObject, run.id().application(), request);
applicationObject.setString("failing", run.id().type().jobName());
applicationObject.setString("status", run.status().name());
}
var jobsByInstance = deploymentStatuses.asList().stream()
.flatMap(status -> status.instanceJobs().entrySet().stream())
.collect(toUnmodifiableMap(jobs -> jobs.getKey(), jobs -> jobs.getValue()));
Cursor productionArray = versionObject.setArray("productionApplications");
deploymentStatistics.get(version.versionNumber()).productionSuccesses().stream()
.collect(groupingBy(run -> run.id().application()))
.forEach((id, runs) -> {
Cursor applicationObject = productionArray.addObject();
toSlime(applicationObject, id, request);
applicationObject.setLong("productionJobs", jobsByInstance.get(id).production().size());
applicationObject.setLong("productionSuccesses", runs.size());
});
Cursor runningArray = versionObject.setArray("deployingApplications");
for (Run run : deploymentStatistics.get(version.versionNumber()).runningUpgrade()) {
Cursor applicationObject = runningArray.addObject();
toSlime(applicationObject, run.id().application(), request);
applicationObject.setString("running", run.id().type().jobName());
}
}
return new SlimeJsonResponse(slime);
}
private void toSlime(Cursor object, ApplicationId id, HttpRequest request) {
object.setString("tenant", id.tenant().value());
object.setString("application", id.application().value());
object.setString("instance", id.instance().value());
object.setString("url", new Uri(request.getUri()).withPath("/application/v4/tenant/" +
id.tenant().value() +
"/application/" +
id.application().value()).toString());
object.setString("upgradePolicy", toString(controller.applications().requireApplication(TenantAndApplicationId.from(id))
.deploymentSpec().instance(id.instance()).map(DeploymentInstanceSpec::upgradePolicy)
.orElse(DeploymentSpec.UpgradePolicy.defaultPolicy)));
}
private static String toString(DeploymentSpec.UpgradePolicy upgradePolicy) {
if (upgradePolicy == DeploymentSpec.UpgradePolicy.defaultPolicy) {
return "default";
}
return upgradePolicy.name();
}
// ----------------------------- Utilities to pick out the relevant JobStatus -- filter chains should mirror the ones in VersionStatus
}
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