reflector.go/cmd/start.go

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package cmd
import (
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"github.com/lbryio/reflector.go/cluster"
"github.com/lbryio/reflector.go/db"
"github.com/lbryio/reflector.go/prism"
"github.com/lbryio/reflector.go/reflector"
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"github.com/lbryio/reflector.go/server/peer"
"github.com/lbryio/reflector.go/store"
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"github.com/lbryio/lbry.go/v2/dht"
"github.com/lbryio/lbry.go/v2/dht/bits"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
const (
startNewCluster = "new"
)
var (
startClusterPort int
startPeerPort int
startReflectorPort int
startDhtPort int
startDhtSeeds []string
startHashRange string
)
func init() {
var cmd = &cobra.Command{
Use: `start [cluster-address|"new"]`,
Short: "Runs full prism application with cluster, dht, peer server, and reflector server.",
Run: startCmd,
Args: cobra.ExactArgs(1),
}
cmd.PersistentFlags().IntVar(&startClusterPort, "cluster-port", cluster.DefaultPort, "Port that cluster listens on")
cmd.PersistentFlags().IntVar(&startPeerPort, "peer-port", peer.DefaultPort, "Port to start peer protocol on")
cmd.PersistentFlags().IntVar(&startReflectorPort, "reflector-port", reflector.DefaultPort, "Port to start reflector protocol on")
cmd.PersistentFlags().IntVar(&startDhtPort, "dht-port", dht.DefaultPort, "Port that dht will listen on")
cmd.PersistentFlags().StringSliceVar(&startDhtSeeds, "dht-seeds", []string{}, "Comma-separated list of dht seed nodes (addr:port,addr:port,...)")
cmd.PersistentFlags().StringVar(&startHashRange, "hash-range", "", "Limit on range of hashes to announce (start-end)")
rootCmd.AddCommand(cmd)
}
func startCmd(cmd *cobra.Command, args []string) {
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db := &db.SQL{
LogQueries: log.GetLevel() == log.DebugLevel,
}
err := db.Connect(globalConfig.DBConn)
checkErr(err)
s3 := store.NewS3Store(globalConfig.AwsID, globalConfig.AwsSecret, globalConfig.BucketRegion, globalConfig.BucketName)
comboStore := store.NewDBBackedStore(s3, db, false)
conf := prism.DefaultConf()
// TODO: args we need:
// minNodes - minimum number of nodes before announcing starts. otherwise first node will try to announce all the blobs in the db
// or maybe we should do maxHashesPerNode?
// in either case, this should not kill the cluster, but should only limit announces (and notify when some hashes are being left unannounced)
if args[0] != startNewCluster {
conf.ClusterSeedAddr = args[0]
}
conf.DB = db
conf.Blobs = comboStore
conf.DhtAddress = "0.0.0.0:" + strconv.Itoa(startDhtPort)
conf.DhtSeedNodes = startDhtSeeds
conf.ClusterPort = startClusterPort
conf.PeerPort = startPeerPort
conf.ReflectorPort = startReflectorPort
if startHashRange != "" {
hashRange := strings.Split(startHashRange, "-")
if len(hashRange) != 2 {
log.Fatal("invalid hash range")
}
r := bits.Range{Start: bits.FromShortHexP(hashRange[0]), End: bits.FromShortHexP(hashRange[1])}
conf.HashRange = &r
}
p := prism.New(conf)
err = p.Start()
if err != nil {
log.Fatal(err)
}
interruptChan := make(chan os.Signal, 1)
signal.Notify(interruptChan, os.Interrupt, syscall.SIGTERM)
<-interruptChan
p.Shutdown()
}