mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-28 22:27:17 +00:00
325 lines
8.8 KiB
Go
325 lines
8.8 KiB
Go
// Package node defines the services that a beacon chain node would perform.
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package node
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"path"
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"sync"
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"syscall"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/ethclient"
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gethRPC "github.com/ethereum/go-ethereum/rpc"
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"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
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"github.com/prysmaticlabs/prysm/beacon-chain/db"
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"github.com/prysmaticlabs/prysm/beacon-chain/operations"
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"github.com/prysmaticlabs/prysm/beacon-chain/powchain"
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"github.com/prysmaticlabs/prysm/beacon-chain/rpc"
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rbcsync "github.com/prysmaticlabs/prysm/beacon-chain/sync"
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"github.com/prysmaticlabs/prysm/beacon-chain/utils"
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"github.com/prysmaticlabs/prysm/shared"
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"github.com/prysmaticlabs/prysm/shared/cmd"
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"github.com/prysmaticlabs/prysm/shared/debug"
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"github.com/prysmaticlabs/prysm/shared/p2p"
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"github.com/prysmaticlabs/prysm/shared/params"
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"github.com/prysmaticlabs/prysm/shared/prometheus"
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"github.com/prysmaticlabs/prysm/shared/version"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var log = logrus.WithField("prefix", "node")
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var beaconChainDBName = "beaconchaindata"
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// BeaconNode defines a struct that handles the services running a random beacon chain
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// full PoS node. It handles the lifecycle of the entire system and registers
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// services to a service registry.
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type BeaconNode struct {
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ctx *cli.Context
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services *shared.ServiceRegistry
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lock sync.RWMutex
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stop chan struct{} // Channel to wait for termination notifications.
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db *db.BeaconDB
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}
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// NewBeaconNode creates a new node instance, sets up configuration options, and registers
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// every required service to the node.
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func NewBeaconNode(ctx *cli.Context) (*BeaconNode, error) {
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registry := shared.NewServiceRegistry()
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beacon := &BeaconNode{
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ctx: ctx,
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services: registry,
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stop: make(chan struct{}),
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}
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// Use demo config values if demo config flag is set.
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if ctx.GlobalBool(utils.DemoConfigFlag.Name) {
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log.Info("Using custom parameter configuration")
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params.UseDemoBeaconConfig()
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}
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if err := beacon.startDB(ctx); err != nil {
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return nil, err
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}
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if err := beacon.registerP2P(ctx); err != nil {
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return nil, err
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}
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if err := beacon.registerPOWChainService(ctx); err != nil {
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return nil, err
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}
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if err := beacon.registerOperationService(); err != nil {
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return nil, err
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}
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if err := beacon.registerBlockchainService(ctx); err != nil {
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return nil, err
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}
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if err := beacon.registerSyncService(ctx); err != nil {
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return nil, err
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}
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if err := beacon.registerRPCService(ctx); err != nil {
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return nil, err
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}
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if !ctx.GlobalBool(cmd.DisableMonitoringFlag.Name) {
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if err := beacon.registerPrometheusService(ctx); err != nil {
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return nil, err
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}
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}
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return beacon, nil
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}
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// Start the BeaconNode and kicks off every registered service.
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func (b *BeaconNode) Start() {
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b.lock.Lock()
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log.WithFields(logrus.Fields{
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"version": version.GetVersion(),
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}).Info("Starting beacon node")
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b.services.StartAll()
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stop := b.stop
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b.lock.Unlock()
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go func() {
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sigc := make(chan os.Signal, 1)
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signal.Notify(sigc, syscall.SIGINT, syscall.SIGTERM)
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defer signal.Stop(sigc)
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<-sigc
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log.Info("Got interrupt, shutting down...")
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go b.Close()
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for i := 10; i > 0; i-- {
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<-sigc
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if i > 1 {
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log.Info("Already shutting down, interrupt more to panic", "times", i-1)
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}
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}
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debug.Exit(b.ctx) // Ensure trace and CPU profile data are flushed.
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panic("Panic closing the beacon node")
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}()
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// Wait for stop channel to be closed.
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<-stop
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}
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// Close handles graceful shutdown of the system.
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func (b *BeaconNode) Close() {
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b.lock.Lock()
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defer b.lock.Unlock()
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log.Info("Stopping beacon node")
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b.services.StopAll()
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if err := b.db.Close(); err != nil {
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log.Errorf("Failed to close database: %v", err)
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}
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close(b.stop)
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}
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func (b *BeaconNode) startDB(ctx *cli.Context) error {
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baseDir := ctx.GlobalString(cmd.DataDirFlag.Name)
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db, err := db.NewDB(path.Join(baseDir, beaconChainDBName))
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if err != nil {
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return err
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}
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log.Info("checking db")
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b.db = db
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return nil
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}
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func (b *BeaconNode) registerP2P(ctx *cli.Context) error {
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beaconp2p, err := configureP2P(ctx)
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if err != nil {
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return fmt.Errorf("could not register p2p service: %v", err)
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}
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return b.services.RegisterService(beaconp2p)
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}
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func (b *BeaconNode) registerBlockchainService(ctx *cli.Context) error {
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var web3Service *powchain.Web3Service
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enablePOWChain := ctx.GlobalBool(utils.EnablePOWChain.Name)
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if enablePOWChain {
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if err := b.services.FetchService(&web3Service); err != nil {
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return err
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}
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}
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var opsService *operations.Service
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if err := b.services.FetchService(&opsService); err != nil {
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return err
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}
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blockchainService, err := blockchain.NewChainService(context.TODO(), &blockchain.Config{
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BeaconDB: b.db,
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Web3Service: web3Service,
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OpsPoolService: opsService,
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BeaconBlockBuf: 10,
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IncomingBlockBuf: 100, // Big buffer to accommodate other feed subscribers.
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})
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if err != nil {
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return fmt.Errorf("could not register blockchain service: %v", err)
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}
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return b.services.RegisterService(blockchainService)
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}
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func (b *BeaconNode) registerOperationService() error {
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operationService := operations.NewOpsPoolService(context.TODO(), &operations.Config{
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BeaconDB: b.db,
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})
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return b.services.RegisterService(operationService)
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}
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func (b *BeaconNode) registerPOWChainService(cliCtx *cli.Context) error {
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if !cliCtx.GlobalBool(utils.EnablePOWChain.Name) {
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return nil
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}
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rpcClient, err := gethRPC.Dial(b.ctx.GlobalString(utils.Web3ProviderFlag.Name))
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if err != nil {
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log.Fatalf("Access to PoW chain is required for validator. Unable to connect to Geth node: %v", err)
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}
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powClient := ethclient.NewClient(rpcClient)
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delay := cliCtx.GlobalUint64(utils.ChainStartDelay.Name)
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ctx := context.Background()
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cfg := &powchain.Web3ServiceConfig{
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Endpoint: b.ctx.GlobalString(utils.Web3ProviderFlag.Name),
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DepositContract: common.HexToAddress(b.ctx.GlobalString(utils.DepositContractFlag.Name)),
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Client: powClient,
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Reader: powClient,
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Logger: powClient,
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BlockFetcher: powClient,
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ContractBackend: powClient,
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BeaconDB: b.db,
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ChainStartDelay: delay,
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}
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web3Service, err := powchain.NewWeb3Service(ctx, cfg)
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if err != nil {
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return fmt.Errorf("could not register proof-of-work chain web3Service: %v", err)
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}
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if err := b.db.VerifyContractAddress(ctx, cfg.DepositContract); err != nil {
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return err
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}
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return b.services.RegisterService(web3Service)
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}
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func (b *BeaconNode) registerSyncService(ctx *cli.Context) error {
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var chainService *blockchain.ChainService
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if err := b.services.FetchService(&chainService); err != nil {
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return err
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}
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var p2pService *p2p.Server
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if err := b.services.FetchService(&p2pService); err != nil {
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return err
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}
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var operationService *operations.Service
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if err := b.services.FetchService(&operationService); err != nil {
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return err
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}
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var web3Service *powchain.Web3Service
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var enablePOWChain = ctx.GlobalBool(utils.EnablePOWChain.Name)
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if enablePOWChain {
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if err := b.services.FetchService(&web3Service); err != nil {
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return err
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}
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}
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cfg := &rbcsync.Config{
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ChainService: chainService,
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P2P: p2pService,
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BeaconDB: b.db,
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OperationService: operationService,
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PowChainService: web3Service,
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}
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syncService := rbcsync.NewSyncService(context.Background(), cfg)
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return b.services.RegisterService(syncService)
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}
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func (b *BeaconNode) registerRPCService(ctx *cli.Context) error {
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var chainService *blockchain.ChainService
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if err := b.services.FetchService(&chainService); err != nil {
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return err
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}
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var operationService *operations.Service
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if err := b.services.FetchService(&operationService); err != nil {
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return err
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}
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var web3Service *powchain.Web3Service
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var enablePOWChain = ctx.GlobalBool(utils.EnablePOWChain.Name)
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if enablePOWChain {
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if err := b.services.FetchService(&web3Service); err != nil {
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return err
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}
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}
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port := ctx.GlobalString(utils.RPCPort.Name)
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cert := ctx.GlobalString(utils.CertFlag.Name)
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key := ctx.GlobalString(utils.KeyFlag.Name)
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chainStartDelayFlag := ctx.GlobalUint64(utils.ChainStartDelay.Name)
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rpcService := rpc.NewRPCService(context.TODO(), &rpc.Config{
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Port: port,
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CertFlag: cert,
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KeyFlag: key,
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ChainStartDelayFlag: chainStartDelayFlag,
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SubscriptionBuf: 100,
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BeaconDB: b.db,
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ChainService: chainService,
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OperationService: operationService,
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POWChainService: web3Service,
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})
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return b.services.RegisterService(rpcService)
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}
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func (b *BeaconNode) registerPrometheusService(ctx *cli.Context) error {
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service := prometheus.NewPrometheusService(
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fmt.Sprintf(":%d", ctx.GlobalInt64(cmd.MonitoringPortFlag.Name)),
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b.services,
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)
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hook := prometheus.NewLogrusCollector()
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logrus.AddHook(hook)
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return b.services.RegisterService(service)
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}
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