Function main

examples/features/csm_observability/server/main.go:58–91

()

}

func main() {
	flag.Parse()
	exporter, err := prometheus.New()
	if err != nil {
		log.Fatalf("Failed to start prometheus exporter: %v", err)
	}
	provider := metric.NewMeterProvider(metric.WithReader(exporter))
	go http.ListenAndServe(*prometheusEndpoint, promhttp.Handler())

	cleanup := csm.EnableObservability(context.Background(), opentelemetry.Options{MetricsOptions: opentelemetry.MetricsOptions{MeterProvider: provider}})
	defer cleanup()

	lis, err := net.Listen("tcp4", "0.0.0.0:"+*port)
	if err != nil {
		log.Fatalf("Failed to listen: %v", err)
	}
	// Set up xds credentials that fall back to insecure as described in:
	// https://cloud.google.com/service-mesh/docs/service-routing/security-proxyless-setup#workloads_are_unable_to_communicate_in_the_security_setup.
	creds, err := xdscreds.NewServerCredentials(xdscreds.ServerOptions{FallbackCreds: insecure.NewCredentials()})
	if err != nil {
		log.Fatalf("Failed to create xDS credentials: %v", err)
	}
	s, err := xds.NewGRPCServer(grpc.Creds(creds))
	if err != nil {
		log.Fatalf("Failed to start xDS Server: %v", err)
	}
	pb.RegisterGreeterServer(s, &server{addr: ":" + *port})

	log.Printf("Serving on %s\n", *port)

	if err := s.Serve(lis); err != nil {
		log.Fatalf("Failed to serve: %v", err)
	}
}