package main import ( "flag" "net/http" "os" "os/signal" "syscall" "github.com/prometheus/client_golang/prometheus/promhttp" "github.com/runconduit/conduit/controller/api/proxy" "github.com/runconduit/conduit/controller/destination" "github.com/runconduit/conduit/pkg/version" log "github.com/sirupsen/logrus" ) func main() { addr := flag.String("addr", ":8086", "address to serve on") metricsAddr := flag.String("metrics-addr", ":9996", "address to serve scrapable metrics on") telemetryAddr := flag.String("telemetry-addr", ":8087", "address of telemetry service") destinationAddr := flag.String("destination-addr", ":8089", "address of destination service") logLevel := flag.String("log-level", log.InfoLevel.String(), "log level, must be one of: panic, fatal, error, warn, info, debug") printVersion := version.VersionFlag() flag.Parse() // set global log level level, err := log.ParseLevel(*logLevel) if err != nil { log.Fatalf("invalid log-level: %s", *logLevel) } log.SetLevel(level) version.MaybePrintVersionAndExit(*printVersion) stop := make(chan os.Signal, 1) signal.Notify(stop, os.Interrupt, syscall.SIGTERM) telemetryClient, conn, err := proxy.NewTelemetryClient(*telemetryAddr) if err != nil { log.Fatal(err) } defer conn.Close() destinationClient, conn, err := destination.NewClient(*destinationAddr) if err != nil { log.Fatal(err) } defer conn.Close() server, lis, err := proxy.NewServer(*addr, telemetryClient, destinationClient) if err != nil { log.Fatal(err) } go func() { log.Infof("starting gRPC server on %s", *addr) server.Serve(lis) }() go func() { log.Infof("serving scrapable metrics on %s", *metricsAddr) http.Handle("/metrics", promhttp.Handler()) http.ListenAndServe(*metricsAddr, nil) }() <-stop log.Infof("shutting down gRPC server on %s", *addr) server.GracefulStop() }