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router.go
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router.go
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// Copyright © 2017 The Things Network
// Use of this source code is governed by the MIT license that can be found in the LICENSE file.
package cmd
import (
"fmt"
"net"
"os"
"os/signal"
"syscall"
ttnlog "github.com/TheThingsNetwork/go-utils/log"
"github.com/TheThingsNetwork/ttn/core/component"
"github.com/TheThingsNetwork/ttn/core/router"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"google.golang.org/grpc"
)
// routerCmd represents the router command
var routerCmd = &cobra.Command{
Use: "router",
Short: "The Things Network router",
Long: ``,
PreRun: func(cmd *cobra.Command, args []string) {
ctx.WithFields(ttnlog.Fields{
"Server": fmt.Sprintf("%s:%d", viper.GetString("router.server-address"), viper.GetInt("router.server-port")),
"Announce": fmt.Sprintf("%s:%d", viper.GetString("router.server-address-announce"), viper.GetInt("router.server-port")),
}).Info("Initializing Router")
},
Run: func(cmd *cobra.Command, args []string) {
ctx.Info("Starting")
// Component
component, err := component.New(ttnlog.Get(), "router", fmt.Sprintf("%s:%d", viper.GetString("router.server-address-announce"), viper.GetInt("router.server-port")))
if err != nil {
ctx.WithError(err).Fatal("Could not initialize component")
}
if mqttAddress := viper.GetString("router.mqtt-address-announce"); mqttAddress != "" {
component.Identity.MqttAddress = mqttAddress
}
// Router
router := router.NewRouter()
err = router.Init(component)
if err != nil {
ctx.WithError(err).Fatal("Could not initialize router")
}
// gRPC Server
lis, err := net.Listen("tcp", fmt.Sprintf("%s:%d", viper.GetString("router.server-address"), viper.GetInt("router.server-port")))
if err != nil {
ctx.WithError(err).Fatal("Could not start gRPC server")
}
grpc := grpc.NewServer(component.ServerOptions()...)
// Register and Listen
router.RegisterRPC(grpc)
router.RegisterManager(grpc)
component.RegisterHealthServer(grpc) // must be last one
go grpc.Serve(lis)
sigChan := make(chan os.Signal)
signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
ctx.WithField("signal", <-sigChan).Info("signal received")
grpc.Stop()
router.Shutdown()
},
}
func init() {
RootCmd.AddCommand(routerCmd)
routerCmd.Flags().String("server-address", "0.0.0.0", "The IP address to listen for communication")
routerCmd.Flags().String("server-address-announce", "localhost", "The public IP address to announce")
routerCmd.Flags().Int("server-port", 1901, "The port for communication")
routerCmd.Flags().String("mqtt-address-announce", "", "MQTT address to announce")
routerCmd.Flags().Bool("skip-verify-gateway-token", false, "Skip verification of the gateway token")
viper.BindPFlag("router.server-address", routerCmd.Flags().Lookup("server-address"))
viper.BindPFlag("router.server-address-announce", routerCmd.Flags().Lookup("server-address-announce"))
viper.BindPFlag("router.server-port", routerCmd.Flags().Lookup("server-port"))
viper.BindPFlag("router.mqtt-address-announce", routerCmd.Flags().Lookup("mqtt-address-announce"))
viper.BindPFlag("router.skip-verify-gateway-token", routerCmd.Flags().Lookup("skip-verify-gateway-token"))
}