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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.application;
import com.yahoo.config.application.api.DeploymentSpec;
import com.yahoo.config.provision.CloudName;
import com.yahoo.config.provision.Environment;
import com.yahoo.config.provision.zone.ZoneApi;
import com.yahoo.config.provision.zone.ZoneId;
import com.yahoo.vespa.hosted.controller.Controller;
import com.yahoo.vespa.hosted.controller.deployment.DeploymentSteps;
import java.util.HashSet;
import java.util.Objects;
import java.util.stream.Collectors;
/**
* This contains validators for a {@link DeploymentSpec} that depend on a {@link Controller} to perform validation.
*
* @author mpolden
*/
public class DeploymentSpecValidator {
private final Controller controller;
public DeploymentSpecValidator(Controller controller) {
this.controller = Objects.requireNonNull(controller, "controller must be non-null");
}
/**
* Validate the given deploymentSpec
*
* @throws IllegalArgumentException if any validations fail
*/
public void validate(DeploymentSpec deploymentSpec) {
validateSteps(deploymentSpec);
validateEndpoints(deploymentSpec);
}
/** Verify that each of the production zones listed in the deployment spec exist in this system */
private void validateSteps(DeploymentSpec deploymentSpec) {
new DeploymentSteps(deploymentSpec, controller::system).jobs();
deploymentSpec.instances().stream().flatMap(instance -> instance.zones().stream())
.filter(zone -> zone.environment() == Environment.prod)
.forEach(zone -> {
if ( ! controller.zoneRegistry().hasZone(ZoneId.from(zone.environment(),
zone.region().orElse(null)))) {
throw new IllegalArgumentException("Zone " + zone + " in deployment spec was not found in this system!");
}
});
}
/** Verify that no single endpoint contains regions in different clouds */
private void validateEndpoints(DeploymentSpec deploymentSpec) {
for (var instance : deploymentSpec.instances()) {
for (var endpoint : instance.endpoints()) {
var clouds = new HashSet<CloudName>();
for (var region : endpoint.regions()) {
for (ZoneApi zone : controller.zoneRegistry().zones().all().in(region).zones()) {
clouds.add(zone.getCloudName());
}
}
if (clouds.size() != 1) {
throw new IllegalArgumentException("Endpoint '" + endpoint.endpointId() + "' in " + instance +
" cannot contain regions in different clouds: " +
endpoint.regions().stream().sorted().collect(Collectors.toList()));
}
}
}
}
}
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