You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
2.2 KiB
90 lines
2.2 KiB
// bootnode provides peer discovery service to new node to connect to the p2p network
|
|
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/harmony-one/harmony/internal/utils"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
"github.com/harmony-one/harmony/p2p/p2pimpl"
|
|
|
|
ds "github.com/ipfs/go-datastore"
|
|
dsync "github.com/ipfs/go-datastore/sync"
|
|
|
|
kaddht "github.com/libp2p/go-libp2p-kad-dht"
|
|
)
|
|
|
|
var (
|
|
version string
|
|
builtBy string
|
|
builtAt string
|
|
commit string
|
|
)
|
|
|
|
func printVersion(me string) {
|
|
fmt.Fprintf(os.Stderr, "Harmony (C) 2019. %v, version %v-%v (%v %v)\n", path.Base(me), version, commit, builtBy, builtAt)
|
|
os.Exit(0)
|
|
}
|
|
|
|
func loggingInit(logFolder, ip, port string) {
|
|
// Setup a logger to stdout and log file.
|
|
if err := os.MkdirAll(logFolder, 0755); err != nil {
|
|
panic(err)
|
|
}
|
|
logFileName := fmt.Sprintf("./%v/bootnode-%v-%v.log", logFolder, ip, port)
|
|
h := log.MultiHandler(
|
|
log.StreamHandler(os.Stdout, log.TerminalFormat(false)),
|
|
log.Must.FileHandler(logFileName, log.JSONFormat()), // Log to file
|
|
)
|
|
log.Root().SetHandler(h)
|
|
}
|
|
|
|
func main() {
|
|
ip := flag.String("ip", "127.0.0.1", "IP of the node")
|
|
port := flag.String("port", "9876", "port of the node.")
|
|
logFolder := flag.String("log_folder", "latest", "the folder collecting the logs of this execution")
|
|
keyFile := flag.String("key", "./.bnkey", "the private key file of the bootnode")
|
|
versionFlag := flag.Bool("version", false, "Output version info")
|
|
|
|
flag.Parse()
|
|
|
|
if *versionFlag {
|
|
printVersion(os.Args[0])
|
|
}
|
|
|
|
// Logging setup
|
|
utils.SetPortAndIP(*port, *ip)
|
|
|
|
// Init logging.
|
|
loggingInit(*logFolder, *ip, *port)
|
|
|
|
privKey, _, err := utils.LoadKeyFromFile(*keyFile)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
var selfPeer = p2p.Peer{IP: *ip, Port: *port}
|
|
|
|
host, err := p2pimpl.NewHost(&selfPeer, privKey)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
log.Info("bootnode", "BN_MA", fmt.Sprintf("/ip4/%s/tcp/%s/p2p/%s", *ip, *port, host.GetID().Pretty()))
|
|
|
|
dataStore := dsync.MutexWrap(ds.NewMapDatastore())
|
|
dht := kaddht.NewDHT(context.Background(), host.GetP2PHost(), dataStore)
|
|
|
|
if err := dht.Bootstrap(context.Background()); err != nil {
|
|
log.Error("failed to bootstrap DHT")
|
|
panic(err)
|
|
}
|
|
|
|
select {}
|
|
}
|
|
|