/
KnativeManifestGenerator.java
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/
KnativeManifestGenerator.java
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/**
* Copyright 2018 The original authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.dekorate.knative.manifest;
import java.util.Optional;
import io.dekorate.AbstractKubernetesManifestGenerator;
import io.dekorate.BuildServiceFactories;
import io.dekorate.ConfigurationRegistry;
import io.dekorate.ResourceRegistry;
import io.dekorate.WithProject;
import io.dekorate.config.ConfigurationSupplier;
import io.dekorate.knative.config.AutoScalerClass;
import io.dekorate.knative.config.AutoscalingMetric;
import io.dekorate.knative.config.EditableKnativeConfig;
import io.dekorate.knative.config.GlobalAutoScaling;
import io.dekorate.knative.config.KnativeConfig;
import io.dekorate.knative.config.KnativeConfigBuilder;
import io.dekorate.knative.config.Traffic;
import io.dekorate.knative.decorator.AddAwsElasticBlockStoreVolumeToRevisionDecorator;
import io.dekorate.knative.decorator.AddAzureDiskVolumeToRevisionDecorator;
import io.dekorate.knative.decorator.AddAzureFileVolumeToRevisionDecorator;
import io.dekorate.knative.decorator.AddConfigMapVolumeToRevisionDecorator;
import io.dekorate.knative.decorator.AddHostAliasesToRevisionDecorator;
import io.dekorate.knative.decorator.AddPvcVolumeToRevisionDecorator;
import io.dekorate.knative.decorator.AddSecretVolumeToRevisionDecorator;
import io.dekorate.knative.decorator.AddSidecarToRevisionDecorator;
import io.dekorate.knative.decorator.ApplyGlobalAutoscalingClassDecorator;
import io.dekorate.knative.decorator.ApplyGlobalContainerConcurrencyDecorator;
import io.dekorate.knative.decorator.ApplyGlobalRequestsPerSecondTargetDecorator;
import io.dekorate.knative.decorator.ApplyLocalAutoscalingClassDecorator;
import io.dekorate.knative.decorator.ApplyLocalAutoscalingMetricDecorator;
import io.dekorate.knative.decorator.ApplyLocalAutoscalingTargetDecorator;
import io.dekorate.knative.decorator.ApplyLocalContainerConcurrencyDecorator;
import io.dekorate.knative.decorator.ApplyMaxScaleDecorator;
import io.dekorate.knative.decorator.ApplyMinScaleDecorator;
import io.dekorate.knative.decorator.ApplyRevisionNameDecorator;
import io.dekorate.knative.decorator.ApplyTrafficDecorator;
import io.dekorate.kubernetes.config.AwsElasticBlockStoreVolume;
import io.dekorate.kubernetes.config.AzureDiskVolume;
import io.dekorate.kubernetes.config.AzureFileVolume;
import io.dekorate.kubernetes.config.ConfigMapVolume;
import io.dekorate.kubernetes.config.Configuration;
import io.dekorate.kubernetes.config.Container;
import io.dekorate.kubernetes.config.HostAlias;
import io.dekorate.kubernetes.config.ImageConfiguration;
import io.dekorate.kubernetes.config.ImageConfigurationBuilder;
import io.dekorate.kubernetes.config.LabelBuilder;
import io.dekorate.kubernetes.config.PersistentVolumeClaimVolume;
import io.dekorate.kubernetes.config.SecretVolume;
import io.dekorate.kubernetes.configurator.ApplyDeployToApplicationConfiguration;
import io.dekorate.kubernetes.decorator.AddCommitIdAnnotationDecorator;
import io.dekorate.kubernetes.decorator.AddConfigMapDataDecorator;
import io.dekorate.kubernetes.decorator.AddConfigMapResourceProvidingDecorator;
import io.dekorate.kubernetes.decorator.AddLabelDecorator;
import io.dekorate.kubernetes.decorator.AddVcsUrlAnnotationDecorator;
import io.dekorate.kubernetes.decorator.ApplyPortNameDecorator;
import io.dekorate.option.config.VcsConfig;
import io.dekorate.project.ApplyProjectInfo;
import io.dekorate.project.Project;
import io.dekorate.utils.Annotations;
import io.dekorate.utils.Git;
import io.dekorate.utils.Images;
import io.dekorate.utils.Labels;
import io.dekorate.utils.Ports;
import io.dekorate.utils.Strings;
import io.fabric8.knative.serving.v1.Service;
import io.fabric8.knative.serving.v1.ServiceBuilder;
import io.fabric8.kubernetes.api.model.KubernetesListBuilder;
public class KnativeManifestGenerator extends AbstractKubernetesManifestGenerator<KnativeConfig> implements WithProject {
private static final String KNATIVE = "knative";
private static final String DEFAULT_REGISTRY = "dev.local/";
private static final String KNATIVE_VISIBILITY = "serving.knative.dev/visibility";
private static final String CLUSTER_LOCAL = "cluster-local";
private final ConfigurationRegistry configurationRegistry;
public KnativeManifestGenerator() {
this(new ResourceRegistry(), new ConfigurationRegistry());
}
public KnativeManifestGenerator(ResourceRegistry resourceRegistry, ConfigurationRegistry configurationRegistry) {
super(resourceRegistry);
this.configurationRegistry = configurationRegistry;
}
@Override
public int order() {
return 400;
}
@Override
public String getKey() {
return KNATIVE;
}
public void generate(KnativeConfig config) {
Optional<Service> existingService = resourceRegistry.groups().getOrDefault(KNATIVE, new KubernetesListBuilder())
.buildItems().stream().filter(i -> i instanceof Service).map(i -> (Service) i)
.filter(i -> i.getMetadata().getName().equals(config.getName())).findAny();
if (!existingService.isPresent()) {
resourceRegistry.add(KNATIVE, createService(config));
}
Project project = getProject();
Optional<VcsConfig> vcsConfig = configurationRegistry.get(VcsConfig.class);
String remote = vcsConfig.map(VcsConfig::getRemote).orElse(Git.ORIGIN);
boolean httpsPrefered = vcsConfig.map(VcsConfig::isHttpsPreferred).orElse(false);
String vcsUrl = project.getScmInfo() != null && Strings.isNotNullOrEmpty(project.getScmInfo().getRemote().get(Git.ORIGIN))
? Git.getRemoteUrl(project.getRoot(), remote, httpsPrefered).orElse(Labels.UNKNOWN)
: Labels.UNKNOWN;
resourceRegistry.decorate(KNATIVE, new AddVcsUrlAnnotationDecorator(config.getName(), Annotations.VCS_URL, vcsUrl));
resourceRegistry.decorate(KNATIVE, new AddCommitIdAnnotationDecorator());
resourceRegistry.decorate(KNATIVE,
new ApplyPortNameDecorator(null, null,
config.getHttpTransportVersion() != null ? config.getHttpTransportVersion().name().toLowerCase() : "http1",
Ports.webPortNames().toArray(new String[Ports.webPortNames().size()])));
addDecorators(KNATIVE, config);
if (config.getMinScale() != null && config.getMinScale() != 0) {
resourceRegistry.decorate(KNATIVE, new ApplyMinScaleDecorator(config.getName(), config.getMinScale()));
}
if (config.getMaxScale() != null && config.getMaxScale() != 0) {
resourceRegistry.decorate(KNATIVE, new ApplyMaxScaleDecorator(config.getName(), config.getMaxScale()));
}
if (!config.isScaleToZeroEnabled()) {
resourceRegistry.decorate(KNATIVE, new AddConfigMapResourceProvidingDecorator("config-autoscaler"));
resourceRegistry.decorate(KNATIVE, new AddConfigMapDataDecorator("config-autoscaler", "enable-scale-to-zero",
String.valueOf(config.isAutoDeployEnabled())));
}
if (Strings.isNotNullOrEmpty(config.getRevisionName())) {
resourceRegistry.decorate(KNATIVE, new ApplyRevisionNameDecorator(config.getName(), config.getRevisionName()));
}
if (config.getRevisionAutoScaling() != null) {
if (config.getRevisionAutoScaling().getMetric() != null
&& config.getRevisionAutoScaling().getMetric() != AutoscalingMetric.concurrency) {
resourceRegistry.decorate(KNATIVE,
new ApplyLocalAutoscalingMetricDecorator(config.getName(), config.getRevisionAutoScaling().getMetric()));
}
if (config.getRevisionAutoScaling().getContainerConcurrency() != null) {
resourceRegistry.decorate(KNATIVE, new ApplyLocalContainerConcurrencyDecorator(config.getName(),
config.getRevisionAutoScaling().getContainerConcurrency()));
}
// Local autoscaling configuration
if (config.getRevisionAutoScaling().getAutoScalerClass() != null
&& config.getRevisionAutoScaling().getAutoScalerClass() != AutoScalerClass.kpa) {
resourceRegistry.decorate(KNATIVE, new ApplyLocalAutoscalingClassDecorator(config.getName(),
config.getRevisionAutoScaling().getAutoScalerClass()));
}
if (config.getRevisionAutoScaling().getTarget() != null && config.getRevisionAutoScaling().getTarget() != 0) {
resourceRegistry.decorate(KNATIVE,
new ApplyLocalAutoscalingTargetDecorator(config.getName(), config.getRevisionAutoScaling().getTarget()));
}
if (config.getRevisionAutoScaling().getTarget() != null
&& config.getRevisionAutoScaling().getTarget() != 200
&& config.getRevisionAutoScaling().getMetric() == AutoscalingMetric.rps) {
resourceRegistry.decorate(KNATIVE, new ApplyLocalContainerConcurrencyDecorator(config.getName(),
config.getRevisionAutoScaling().getTarget()));
}
if (config.getRevisionAutoScaling().getTargetUtilizationPercentage() != null
&& config.getRevisionAutoScaling().getTargetUtilizationPercentage() != 70) {
resourceRegistry.decorate(KNATIVE, new ApplyLocalContainerConcurrencyDecorator(config.getName(),
config.getRevisionAutoScaling().getTargetUtilizationPercentage()));
}
}
// Global autoscaling configuration
if (config.getGlobalAutoScaling() != null) {
if (!isDefault(config.getGlobalAutoScaling())) {
resourceRegistry.decorate(KNATIVE, new AddConfigMapResourceProvidingDecorator("config-autoscaler"));
if (config.getGlobalAutoScaling().getAutoScalerClass() != null
&& config.getGlobalAutoScaling().getAutoScalerClass() != AutoScalerClass.kpa) {
resourceRegistry.decorate(KNATIVE,
new ApplyGlobalAutoscalingClassDecorator(config.getGlobalAutoScaling().getAutoScalerClass()));
}
if (config.getGlobalAutoScaling().getRequestsPerSecond() != null
&& config.getGlobalAutoScaling().getRequestsPerSecond() != 200) {
resourceRegistry.decorate(KNATIVE,
new ApplyGlobalRequestsPerSecondTargetDecorator(config.getGlobalAutoScaling().getRequestsPerSecond()));
}
if (config.getGlobalAutoScaling().getTargetUtilizationPercentage() != null
&& config.getGlobalAutoScaling().getTargetUtilizationPercentage() != 70) {
resourceRegistry.decorate(KNATIVE, new ApplyGlobalContainerConcurrencyDecorator(
config.getGlobalAutoScaling().getTargetUtilizationPercentage()));
}
}
if (config.getGlobalAutoScaling().getContainerConcurrency() != null
&& config.getGlobalAutoScaling().getContainerConcurrency() != 0) {
resourceRegistry.decorate(KNATIVE, new AddConfigMapResourceProvidingDecorator("config-defaults"));
resourceRegistry.decorate(KNATIVE,
new ApplyGlobalContainerConcurrencyDecorator(config.getGlobalAutoScaling().getContainerConcurrency()));
}
}
for (Traffic traffic : config.getTraffic()) {
String revisionName = Strings.isNotNullOrEmpty(config.getRevisionName()) ? config.getRevisionName() : null;
String tag = Strings.isNotNullOrEmpty(traffic.getTag()) ? traffic.getTag() : null;
boolean latestRevision = revisionName == null ? true : traffic.isLatestRevision();
long percentage = traffic.getPercentage();
resourceRegistry.decorate(KNATIVE,
new ApplyTrafficDecorator(config.getName(), revisionName, latestRevision, percentage, tag));
}
//Revision specific stuff
for (Container container : config.getSidecars()) {
resourceRegistry.decorate(KNATIVE, new AddSidecarToRevisionDecorator(config.getName(), container));
}
for (SecretVolume volume : config.getSecretVolumes()) {
validateVolume(volume);
resourceRegistry.decorate(KNATIVE, new AddSecretVolumeToRevisionDecorator(volume));
}
for (ConfigMapVolume volume : config.getConfigMapVolumes()) {
validateVolume(volume);
resourceRegistry.decorate(KNATIVE, new AddConfigMapVolumeToRevisionDecorator(volume));
}
for (PersistentVolumeClaimVolume volume : config.getPvcVolumes()) {
resourceRegistry.decorate(KNATIVE, new AddPvcVolumeToRevisionDecorator(volume));
}
for (AzureFileVolume volume : config.getAzureFileVolumes()) {
resourceRegistry.decorate(KNATIVE, new AddAzureFileVolumeToRevisionDecorator(volume));
}
for (AzureDiskVolume volume : config.getAzureDiskVolumes()) {
resourceRegistry.decorate(KNATIVE, new AddAzureDiskVolumeToRevisionDecorator(volume));
}
for (AwsElasticBlockStoreVolume volume : config.getAwsElasticBlockStoreVolumes()) {
resourceRegistry.decorate(KNATIVE, new AddAwsElasticBlockStoreVolumeToRevisionDecorator(volume));
}
for (HostAlias hostAlias : config.getHostAliases()) {
resourceRegistry.decorate(KNATIVE, new AddHostAliasesToRevisionDecorator(hostAlias));
}
}
@Override
public ConfigurationSupplier<KnativeConfig> getFallbackConfig() {
Project p = getProject();
return new ConfigurationSupplier<KnativeConfig>(
new KnativeConfigBuilder().accept(new ApplyDeployToApplicationConfiguration()).accept(new ApplyProjectInfo(p)));
}
@Override
protected void addDecorators(String group, KnativeConfig config) {
super.addDecorators(group, config);
if (!config.isExpose()) {
resourceRegistry.decorate(group, new AddLabelDecorator(config.getName(), new LabelBuilder()
.withKey(KNATIVE_VISIBILITY)
.withValue(CLUSTER_LOCAL)
.build()));
}
}
public boolean accepts(Class<? extends Configuration> type) {
return type.equals(KnativeConfig.class) || type.equals(EditableKnativeConfig.class);
}
/**
* Creates a {@link Service} for the {@link KnativeConfig}.
*
* @param config The sesssion.
* @return The deployment config.
*/
public Service createService(KnativeConfig config) {
ImageConfiguration imageConfig = getImageConfiguration(getProject(), config, configurationRegistry);
String image = Strings
.isNotNullOrEmpty(imageConfig.getImage())
? imageConfig.getImage()
: Images
.getImage(
imageConfig.isAutoPushEnabled()
? (Strings.isNullOrEmpty(imageConfig.getRegistry()) ? DEFAULT_REGISTRY
: imageConfig.getRegistry())
: imageConfig.getRegistry(),
imageConfig.getGroup(), imageConfig.getName(), imageConfig.getVersion());
return new ServiceBuilder().withNewMetadata().withName(config.getName())
.endMetadata().withNewSpec().withNewTemplate().withNewSpec().addNewContainer().withName(config.getName())
.withImage(image).endContainer().endSpec().endTemplate().endSpec().build();
}
public static boolean isDefault(GlobalAutoScaling autoScaling) {
if (autoScaling.getAutoScalerClass() != AutoScalerClass.kpa) {
return false;
}
if (autoScaling.getContainerConcurrency() != 0) {
return false;
}
if (autoScaling.getRequestsPerSecond() != 200) {
return false;
}
if (autoScaling.getTargetUtilizationPercentage() != 70) {
return false;
}
return true;
}
private static ImageConfiguration getImageConfiguration(Project project, KnativeConfig config,
ConfigurationRegistry configurationRegistry) {
return configurationRegistry.getImageConfig(BuildServiceFactories.supplierMatches(project)).map(i -> merge(config, i))
.orElse(ImageConfiguration.from(config));
}
private static ImageConfiguration merge(KnativeConfig config, ImageConfiguration imageConfig) {
if (config == null) {
throw new NullPointerException("KnativeConfig is null.");
}
if (imageConfig == null) {
return ImageConfiguration.from(config);
}
return new ImageConfigurationBuilder()
.withProject(imageConfig.getProject() != null ? imageConfig.getProject() : config.getProject())
.withImage(imageConfig.getImage() != null ? imageConfig.getImage() : null)
.withGroup(imageConfig.getGroup() != null ? imageConfig.getGroup() : null)
.withName(imageConfig.getName() != null ? imageConfig.getName() : config.getName())
.withVersion(imageConfig.getVersion() != null ? imageConfig.getVersion() : config.getVersion())
.withRegistry(imageConfig.getRegistry() != null ? imageConfig.getRegistry() : null)
.withDockerFile(imageConfig.getDockerFile() != null ? imageConfig.getDockerFile() : null)
.withAutoBuildEnabled(imageConfig.isAutoBuildEnabled() ? imageConfig.isAutoBuildEnabled() : false)
.withAutoPushEnabled(
imageConfig.isAutoPushEnabled() && imageConfig.isAutoBuildEnabled() ? imageConfig.isAutoPushEnabled() : false)
.build();
}
}