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83 lines
2.3 KiB
83 lines
2.3 KiB
// bootnode provides peer discovery service to new node to connect to the p2p network
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package main
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import (
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"context"
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"flag"
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"fmt"
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"os"
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"path"
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"github.com/ethereum/go-ethereum/log"
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"github.com/harmony-one/harmony/internal/utils"
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"github.com/harmony-one/harmony/p2p"
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"github.com/harmony-one/harmony/p2p/p2pimpl"
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ds "github.com/ipfs/go-datastore"
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dsync "github.com/ipfs/go-datastore/sync"
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kaddht "github.com/libp2p/go-libp2p-kad-dht"
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)
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var (
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version string
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builtBy string
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builtAt string
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commit string
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)
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func printVersion(me string) {
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fmt.Fprintf(os.Stderr, "Harmony (C) 2019. %v, version %v-%v (%v %v)\n", path.Base(me), version, commit, builtBy, builtAt)
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os.Exit(0)
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}
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func main() {
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ip := flag.String("ip", "127.0.0.1", "IP of the node")
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port := flag.String("port", "9876", "port of the node.")
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logFolder := flag.String("log_folder", "latest", "the folder collecting the logs of this execution")
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logMaxSize := flag.Int("log_max_size", 100, "the max size in megabytes of the log file before it gets rotated")
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keyFile := flag.String("key", "./.bnkey", "the private key file of the bootnode")
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versionFlag := flag.Bool("version", false, "Output version info")
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verbosity := flag.Int("verbosity", 5, "Logging verbosity: 0=silent, 1=error, 2=warn, 3=info, 4=debug, 5=detail (default: 5)")
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logConn := flag.Bool("log_conn", false, "log incoming/outgoing connections")
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flag.Parse()
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if *versionFlag {
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printVersion(os.Args[0])
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}
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// Logging setup
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utils.SetLogContext(*port, *ip)
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utils.SetLogVerbosity(log.Lvl(*verbosity))
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utils.AddLogFile(fmt.Sprintf("%v/bootnode-%v-%v.log", *logFolder, *ip, *port), *logMaxSize)
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privKey, _, err := utils.LoadKeyFromFile(*keyFile)
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if err != nil {
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panic(err)
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}
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var selfPeer = p2p.Peer{IP: *ip, Port: *port}
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host, err := p2pimpl.NewHost(&selfPeer, privKey)
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if err != nil {
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panic(err)
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}
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fmt.Printf("bootnode BN_MA=%s", fmt.Sprintf("/ip4/%s/tcp/%s/p2p/%s", *ip, *port, host.GetID().Pretty()))
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if *logConn {
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host.GetP2PHost().Network().Notify(utils.NewConnLogger(utils.GetLogInstance()))
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}
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dataStore := dsync.MutexWrap(ds.NewMapDatastore())
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dht := kaddht.NewDHT(context.Background(), host.GetP2PHost(), dataStore)
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if err := dht.Bootstrap(context.Background()); err != nil {
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log.Error("failed to bootstrap DHT")
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panic(err)
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}
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select {}
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}
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