client

Documentation

Overview

Package client represents a gRPC polling-based implementation of an Ethereum validator client.

Index

• Variables
• func ConstructDialOptions(maxCallRecvMsgSize int, withCert string, grpcRetries uint, ...) []grpc.DialOption
• func ProposeExit(ctx context.Context, validatorClient ethpb.BeaconNodeValidatorClient, ...) error
• func SubmitValidatorRegistrations(ctx context.Context, validatorClient ethpb.BeaconNodeValidatorClient, ...) error
• type Config
• type GenesisFetcher
• type SyncChecker
• type ValidatorService
  • func NewValidatorService(ctx context.Context, cfg *Config) (*ValidatorService, error)
  • func (v *ValidatorService) GenesisInfo(ctx context.Context) (*ethpb.Genesis, error)
  • func (v *ValidatorService) InteropKeysConfig() *local.InteropKeymanagerConfig
  • func (v *ValidatorService) Keymanager() (keymanager.IKeymanager, error)
  • func (v *ValidatorService) Start()
  • func (v *ValidatorService) Status() error
  • func (v *ValidatorService) Stop() error
  • func (v *ValidatorService) Syncing(ctx context.Context) (bool, error)

Variables

var (
	// ValidatorStatusesGaugeVec used to track validator statuses by public key.
	ValidatorStatusesGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "statuses",
			Help:      "validator statuses: 0 UNKNOWN, 1 DEPOSITED, 2 PENDING, 3 ACTIVE, 4 EXITING, 5 SLASHING, 6 EXITED",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorAggSuccessVec used to count successful aggregations.
	ValidatorAggSuccessVec = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "validator",
			Name:      "successful_aggregations",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorAggFailVec used to count failed aggregations.
	ValidatorAggFailVec = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "validator",
			Name:      "failed_aggregations",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorProposeSuccessVec used to count successful proposals.
	ValidatorProposeSuccessVec = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "validator",
			Name:      "successful_proposals",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorProposeFailVec used to count failed proposals.
	ValidatorProposeFailVec = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "validator",
			Name:      "failed_proposals",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorProposeFailVecSlasher used to count failed proposals by slashing protection.
	ValidatorProposeFailVecSlasher = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Name: "validator_proposals_rejected_total",
			Help: "Count the block proposals rejected by slashing protection.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorBalancesGaugeVec used to keep track of validator balances by public key.
	ValidatorBalancesGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "balance",
			Help:      "current validator balance.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorAttestedSlotsGaugeVec used to keep track of validator attested slots by public key.
	ValidatorAttestedSlotsGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "last_attested_slot",
			Help:      "Last attested slot.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorCorrectlyVotedSourceGaugeVec used to keep track of validator's accuracy on voting source by public key.
	ValidatorCorrectlyVotedSourceGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "correctly_voted_source",
			Help: "True if correctly voted source in last attestation. In Altair, this " +
				"value will be false if the attestation was not included within " +
				"integer_squareroot(SLOTS_PER_EPOCH) slots, even if it was a vote for the " +
				"correct source.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorCorrectlyVotedTargetGaugeVec used to keep track of validator's accuracy on voting target by public key.
	ValidatorCorrectlyVotedTargetGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "correctly_voted_target",
			Help: "True if correctly voted target in last attestation. In Altair, this " +
				"value will be false if the attestation was not included within " +
				"SLOTS_PER_EPOCH slots, even if it was a vote for the correct target.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorCorrectlyVotedHeadGaugeVec used to keep track of validator's accuracy on voting head by public key.
	ValidatorCorrectlyVotedHeadGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "correctly_voted_head",
			Help: "True if correctly voted head in last attestation. In Altair, this value " +
				"will be false if the attestation was not included in the next slot.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorAttestSuccessVec used to count successful attestations.
	ValidatorAttestSuccessVec = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "validator",
			Name:      "successful_attestations",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorAttestFailVec used to count failed attestations.
	ValidatorAttestFailVec = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "validator",
			Name:      "failed_attestations",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorAttestFailVecSlasher used to count failed attestations by slashing protection.
	ValidatorAttestFailVecSlasher = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Name: "validator_attestations_rejected_total",
			Help: "Count the attestations rejected by slashing protection.",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorNextAttestationSlotGaugeVec used to track validator statuses by public key.
	ValidatorNextAttestationSlotGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "next_attestation_slot",
			Help:      "validator next scheduled attestation slot",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorNextProposalSlotGaugeVec used to track validator statuses by public key.
	ValidatorNextProposalSlotGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "next_proposal_slot",
			Help:      "validator next scheduled proposal slot",
		},
		[]string{
			"pubkey",
		},
	)
	// ValidatorInactivityScoreGaugeVec used to track validator inactivity scores.
	ValidatorInactivityScoreGaugeVec = promauto.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "validator",
			Name:      "inactivity_score",
			Help:      "Validator inactivity score. 0 is optimum number. New in Altair hardfork",
		},
		[]string{
			"pubkey",
		},
	)
)

var (
	ErrBuilderValidatorRegistration = errors.New("Builder API validator registration unsuccessful")
)

keyFetchPeriod is the frequency that we try to refetch validating keys in case no keys were fetched previously.

Functions

func ConstructDialOptions

func ConstructDialOptions(
	maxCallRecvMsgSize int,
	withCert string,
	grpcRetries uint,
	grpcRetryDelay time.Duration,
	extraOpts ...grpc.DialOption,
) []grpc.DialOption

ConstructDialOptions constructs a list of grpc dial options

func ProposeExit

func ProposeExit(
	ctx context.Context,
	validatorClient ethpb.BeaconNodeValidatorClient,
	nodeClient ethpb.NodeClient,
	signer iface.SigningFunc,
	pubKey []byte,
) error

ProposeExit performs a voluntary exit on a validator. The exit is signed by the validator before being sent to the beacon node for broadcasting.

func SubmitValidatorRegistrations

func SubmitValidatorRegistrations(
	ctx context.Context,
	validatorClient ethpb.BeaconNodeValidatorClient,
	signedRegs []*ethpb.SignedValidatorRegistrationV1,
) error

SubmitValidatorRegistrations signs validator registration objects and submits it to the beacon node.

Types

type Config

type Config struct {
	UseWeb                     bool
	LogValidatorBalances       bool
	EmitAccountMetrics         bool
	InteropKeysConfig          *local.InteropKeymanagerConfig
	Wallet                     *wallet.Wallet
	WalletInitializedFeed      *event.Feed
	GrpcRetriesFlag            uint
	GrpcMaxCallRecvMsgSizeFlag int
	GrpcRetryDelay             time.Duration
	GraffitiStruct             *graffiti.Graffiti
	Validator                  iface.Validator
	ValDB                      db.Database
	CertFlag                   string
	DataDir                    string
	GrpcHeadersFlag            string
	GraffitiFlag               string
	Endpoint                   string
	Web3SignerConfig           *remoteweb3signer.SetupConfig
	ProposerSettings           *validatorserviceconfig.ProposerSettings
}

Config for the validator service.

type GenesisFetcher

type GenesisFetcher interface {
	GenesisInfo(ctx context.Context) (*ethpb.Genesis, error)
}

GenesisFetcher can retrieve genesis information such as the genesis time and the validator deposit contract address.

type SyncChecker

type SyncChecker interface {
	Syncing(ctx context.Context) (bool, error)
}

SyncChecker is able to determine if a beacon node is currently going through chain synchronization.

type ValidatorService

type ValidatorService struct {
	Web3SignerConfig *remoteweb3signer.SetupConfig
	ProposerSettings *validatorserviceconfig.ProposerSettings
	// contains filtered or unexported fields
}

ValidatorService represents a service to manage the validator client routine.

func NewValidatorService

func NewValidatorService(ctx context.Context, cfg *Config) (*ValidatorService, error)

NewValidatorService creates a new validator service for the service registry.

func (*ValidatorService) GenesisInfo

func (v *ValidatorService) GenesisInfo(ctx context.Context) (*ethpb.Genesis, error)

GenesisInfo queries the beacon node for the chain genesis info containing the genesis time along with the validator deposit contract address.

func (*ValidatorService) InteropKeysConfig

func (v *ValidatorService) InteropKeysConfig() *local.InteropKeymanagerConfig

InteropKeysConfig returns the useInteropKeys flag.

func (*ValidatorService) Keymanager

func (v *ValidatorService) Keymanager() (keymanager.IKeymanager, error)

func (*ValidatorService) Start

func (v *ValidatorService) Start()

Start the validator service. Launches the main go routine for the validator client.

func (*ValidatorService) Status

func (v *ValidatorService) Status() error

Status of the validator service.

func (*ValidatorService) Stop

func (v *ValidatorService) Stop() error

Stop the validator service.

func (*ValidatorService) Syncing

func (v *ValidatorService) Syncing(ctx context.Context) (bool, error)

Syncing returns whether or not the beacon node is currently synchronizing the chain.