prysm-pulse/validator/client/service.go
Raul Jordan 61026103c6
Validator Attester Rewrite (#1487)
* initial validator attesthead rewrite based on proposer rewrite

* proceed with fetching committees and tree hashing the canonical head at assigned attester slot

* complete filling the properties of attestation data and all associated root hashes

* add when to attest todo

* finish entire attester client logic

* tests with mocks checked in

* tests passing in client

* stubbed out server implementation

* fixed build due to old property

* regen mocks with new mockgen version

* fixed broken tests

* complete bazel build fix

* address some review comments

* deep proto test

* tests passing after checking for empty committee and crosslink root

* address nishant comments
2019-02-06 10:20:38 -06:00

94 lines
2.2 KiB
Go

package client
import (
"context"
"errors"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
pb "github.com/prysmaticlabs/prysm/proto/beacon/rpc/v1"
"github.com/sirupsen/logrus"
)
var log = logrus.WithField("prefix", "validator")
// ValidatorService represents a service to manage the validator client
// routine.
type ValidatorService struct {
ctx context.Context
cancel context.CancelFunc
validator Validator
conn *grpc.ClientConn
endpoint string
withCert string
}
// Config for the validator service.
type Config struct {
Endpoint string
CertFlag string
}
// NewValidatorService creates a new validator service for the service
// registry.
func NewValidatorService(ctx context.Context, cfg *Config) *ValidatorService {
ctx, cancel := context.WithCancel(ctx)
return &ValidatorService{
ctx: ctx,
cancel: cancel,
endpoint: cfg.Endpoint,
withCert: cfg.CertFlag,
}
}
// Start the validator service. Launches the main go routine for the validator
// client.
func (v *ValidatorService) Start() {
var dialOpt grpc.DialOption
if v.withCert != "" {
creds, err := credentials.NewClientTLSFromFile(v.withCert, "")
if err != nil {
log.Errorf("Could not get valid credentials: %v", err)
return
}
dialOpt = grpc.WithTransportCredentials(creds)
} else {
dialOpt = grpc.WithInsecure()
log.Warn("You are using an insecure gRPC connection! Please provide a certificate and key to use a secure connection.")
}
conn, err := grpc.DialContext(v.ctx, v.endpoint, dialOpt)
if err != nil {
log.Errorf("Could not dial endpoint: %s, %v", v.endpoint, err)
return
}
log.Info("Successfully started gRPC connection")
v.conn = conn
v.validator = &validator{
beaconClient: pb.NewBeaconServiceClient(v.conn),
validatorClient: pb.NewValidatorServiceClient(v.conn),
attesterClient: pb.NewAttesterServiceClient(v.conn),
}
go run(v.ctx, v.validator)
}
// Stop the validator service.
func (v *ValidatorService) Stop() error {
v.cancel()
log.Info("Stopping service")
if v.conn != nil {
return v.conn.Close()
}
return nil
}
// Status ...
//
// WIP - not done.
func (v *ValidatorService) Status() error {
if v.conn == nil {
return errors.New("no connection to beacon RPC")
}
return nil
}