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78 lines
3 KiB
Java
78 lines
3 KiB
Java
// Copyright 2017 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.proxy;
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import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
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import com.google.api.client.googleapis.util.Utils;
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import com.google.api.services.monitoring.v3.Monitoring;
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import com.google.api.services.monitoring.v3.model.MonitoredResource;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.util.concurrent.ThreadFactoryBuilder;
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import com.google.monitoring.metrics.MetricReporter;
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import com.google.monitoring.metrics.MetricWriter;
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import com.google.monitoring.metrics.stackdriver.StackdriverWriter;
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import dagger.Component;
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import dagger.Module;
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import dagger.Provides;
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import javax.inject.Singleton;
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/** Module that provides necessary bindings to instantiate a {@link MetricReporter} */
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@Module
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public class MetricsModule {
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// TODO (b/64765479): change to GKE cluster and config in YAML file.
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private static final String MONITORED_RESOURCE_TYPE = "gce_instance";
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private static final String GCE_INSTANCE_ZONE = "us-east4-c";
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private static final String GCE_INSTANCE_ID = "5401454098973297721";
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@Singleton
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@Provides
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static Monitoring provideMonitoring(GoogleCredential credential, ProxyConfig config) {
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return new Monitoring.Builder(
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Utils.getDefaultTransport(), Utils.getDefaultJsonFactory(), credential)
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.setApplicationName(config.projectId)
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.build();
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}
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@Singleton
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@Provides
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static MetricWriter provideMetricWriter(Monitoring monitoringClient, ProxyConfig config) {
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// The MonitoredResource for GAE apps is not writable (and missing fields anyway) so we just
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// use the gce_instance resource type instead.
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return new StackdriverWriter(
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monitoringClient,
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config.projectId,
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new MonitoredResource()
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.setType(MONITORED_RESOURCE_TYPE)
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.setLabels(ImmutableMap.of("zone", GCE_INSTANCE_ZONE, "instance_id", GCE_INSTANCE_ID)),
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config.metrics.stackdriverMaxQps,
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config.metrics.stackdriverMaxPointsPerRequest);
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}
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@Singleton
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@Provides
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static MetricReporter provideMetricReporter(MetricWriter metricWriter, ProxyConfig config) {
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return new MetricReporter(
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metricWriter,
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config.metrics.writeIntervalSeconds,
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new ThreadFactoryBuilder().setDaemon(true).build());
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}
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@Singleton
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@Component(modules = {MetricsModule.class, ProxyModule.class})
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interface MetricsComponent {
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MetricReporter metricReporter();
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}
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}
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