config-model/src/main/java/com/yahoo/vespa/model/application/validation/DeploymentSpecValidator.java


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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.model.application.validation;

import com.yahoo.config.application.api.DeploymentInstanceSpec;
import com.yahoo.config.application.api.DeploymentSpec;
import com.yahoo.config.model.deploy.DeployState;
import com.yahoo.config.provision.InstanceName;
import com.yahoo.vespa.model.VespaModel;
import com.yahoo.vespa.model.container.ContainerModel;

import java.io.Reader;
import java.util.List;
import java.util.Optional;

/**
 * Validate deployment spec (deployment.xml).
 *
 * @author hmusum
 * @author bratseth
 */
public class DeploymentSpecValidator extends Validator {

    @Override
    public void validate(VespaModel model, DeployState deployState) {
        Optional<Reader> deployment = deployState.getApplicationPackage().getDeployment();
        if ( deployment.isEmpty()) return;

        Reader deploymentReader = deployment.get();
        DeploymentSpec deploymentSpec = DeploymentSpec.fromXml(deploymentReader);
        List<ContainerModel> containers = model.getRoot().configModelRepo().getModels(ContainerModel.class);
        for (DeploymentInstanceSpec instance : deploymentSpec.instances()) {
            instance.endpoints().forEach(endpoint -> {
                requireClusterId(containers, instance.name(), "Endpoint '" + endpoint.endpointId() + "'",
                                 endpoint.containerId());
            });
        }
    }

    private static void requireClusterId(List<ContainerModel> containers, InstanceName instanceName, String context,
                                         String id) {
        if (containers.stream().noneMatch(container -> container.getCluster().getName().equals(id)))
            throw new IllegalArgumentException(context + " in instance " + instanceName + ": '" + id +
                                               "' specified in deployment.xml does not match any container cluster ID");
    }

}