Spring Config Example with Proxy

import com.newrelic.telemetry.Attributes;
import io.micrometer.NewRelicRegistryConfig;
import io.micrometer.core.instrument.config.MeterFilter;
import io.micrometer.core.instrument.util.NamedThreadFactory;
import io.micrometer.core.ipc.http.HttpSender;
import io.micrometer.core.ipc.http.HttpUrlConnectionSender;
import io.micrometer.newrelic.NewRelicRegistry;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.Proxy.Type;
import java.net.UnknownHostException;
import java.time.Duration;
import org.springframework.boot.actuate.autoconfigure.metrics.CompositeMeterRegistryAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.metrics.export.simple.SimpleMetricsExportAutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@AutoConfigureBefore({
  CompositeMeterRegistryAutoConfiguration.class,
  SimpleMetricsExportAutoConfiguration.class
})
@AutoConfigureAfter(MetricsAutoConfiguration.class)
@ConditionalOnClass(NewRelicRegistry.class)
public class NewRelicMetricsExportAutoConfiguration {

  @Bean
  public NewRelicRegistryConfig newRelicConfig() {
    return new NewRelicRegistryConfig() {
      @Override
      public String get(String key) {
        return null;
      }

      @Override
      public String apiKey() {
        return System.getenv("INSIGHTS_INSERT_KEY");
      }

      @Override
      public String uri() {
        return System.getenv("METRIC_INGEST_URI");
      }

      @Override
      public Duration step() {
        return Duration.ofSeconds(5);
      }

      @Override
      public String serviceName() {
        return "SpringBootMetricsSample";
      }
    };
  }

  @Bean
  public Proxy proxy() {
    return new Proxy(Type.HTTP, new InetSocketAddress("myproxyhost", 5555));
  }
  
  @Bean
  public NewRelicRegistry newRelicMeterRegistryWithProxy(NewRelicRegistryConfig config, Proxy proxy)
      throws UnknownHostException {
    HttpSender httpSender =
        new HttpUrlConnectionSender(Duration.ofSeconds(1), Duration.ofSeconds(1), proxy);
    NewRelicRegistry newRelicRegistry =
        NewRelicRegistry.builder(config)
            .httpSender(httpSender)
            .commonAttributes(
                new Attributes()
                    .put("host", InetAddress.getLocalHost().getHostName()))
            .build();
    newRelicRegistry.config().meterFilter(MeterFilter.ignoreTags("plz_ignore_me"));
    newRelicRegistry.config().meterFilter(MeterFilter.denyNameStartsWith("jvm.threads"));
    newRelicRegistry.start(new NamedThreadFactory("newrelic.micrometer.registry"));
    return newRelicRegistry;
  }
}