Holesky support (#12821)

* Add holesky config


Copy config/params from deneb-integration

* Add --holesky flag

* Handle no genesis block error and suggest to user a workaround

config/features/config.go

@@ -133,6 +133,13 @@ func configureTestnet(ctx *cli.Context) error {
 		}
 		applySepoliaFeatureFlags(ctx)
 		params.UseSepoliaNetworkConfig()
+	} else if ctx.Bool(HoleskyTestnet.Name) {
+		log.Warn("Running on the Holesky Beacon Chain Testnet")
+		if err := params.SetActive(params.HoleskyConfig().Copy()); err != nil {
+			return err
+		}
+		applyHoleskyFeatureFlags(ctx)
+		params.UseHoleskyNetworkConfig()
 	} else {
 		if ctx.IsSet(cmd.ChainConfigFileFlag.Name) {
 			log.Warn("Running on custom Ethereum network specified in a chain configuration yaml file")
@@ -154,6 +161,10 @@ func applyPraterFeatureFlags(ctx *cli.Context) {
 func applySepoliaFeatureFlags(ctx *cli.Context) {
 }
 
+// Insert feature flags within the function to be enabled for Holesky testnet.
+func applyHoleskyFeatureFlags(ctx *cli.Context) {
+}
+
 // ConfigureBeaconChain sets the global config based
 // on what flags are enabled for the beacon-chain client.
 func ConfigureBeaconChain(ctx *cli.Context) error {

config/features/flags.go

@@ -18,6 +18,11 @@ var (
 		Name:  "sepolia",
 		Usage: "Run Prysm configured for the Sepolia beacon chain test network",
 	}
+	// HoleskyTestnet flag for the multiclient Ethereum consensus testnet.
+	HoleskyTestnet = &cli.BoolFlag{
+		Name:  "holesky",
+		Usage: "Run Prysm configured for the Holesky beacon chain test network",
+	}
 	// Mainnet flag for easier tooling, no-op
 	Mainnet = &cli.BoolFlag{
 		Value: true,
@@ -171,6 +176,7 @@ var devModeFlags = []cli.Flag{
 var ValidatorFlags = append(deprecatedFlags, []cli.Flag{
 	writeWalletPasswordOnWebOnboarding,
 	enableExternalSlasherProtectionFlag,
+	HoleskyTestnet,
 	PraterTestnet,
 	SepoliaTestnet,
 	Mainnet,
@@ -191,6 +197,7 @@ var BeaconChainFlags = append(deprecatedBeaconFlags, append(deprecatedFlags, []c
 	devModeFlag,
 	writeSSZStateTransitionsFlag,
 	disableGRPCConnectionLogging,
+	HoleskyTestnet,
 	PraterTestnet,
 	SepoliaTestnet,
 	Mainnet,
@@ -225,4 +232,5 @@ var NetworkFlags = []cli.Flag{
 	Mainnet,
 	PraterTestnet,
 	SepoliaTestnet,
+	HoleskyTestnet,
 }

config/params/BUILD.bazel

@@ -15,6 +15,7 @@ go_library(
         "minimal_config.go",
         "network_config.go",
         "testnet_e2e_config.go",
+        "testnet_holesky_config.go",
         "testnet_prater_config.go",
         "testnet_sepolia_config.go",
         "testutils.go",
@@ -47,6 +48,7 @@ go_test(
         "configset_test.go",
         "loader_test.go",
         "testnet_config_test.go",
+        "testnet_holesky_config_test.go",
         "testnet_prater_config_test.go",
     ],
     data = glob(["*.yaml"]) + [
@@ -55,6 +57,7 @@ go_test(
         "@consensus_spec_tests_mainnet//:test_data",
         "@consensus_spec_tests_minimal//:test_data",
         "@eth2_networks//:configs",
+        "@holesky_testnet//:configs",
     ],
     embed = [":go_default_library"],
     gotags = ["develop"],

config/params/testnet_holesky_config.go

@@ -0,0 +1,43 @@
+package params
+
+import "math"
+
+// UseHoleskyNetworkConfig uses the Holesky beacon chain specific network config.
+func UseHoleskyNetworkConfig() {
+	cfg := BeaconNetworkConfig().Copy()
+	cfg.ContractDeploymentBlock = 0
+	cfg.BootstrapNodes = []string{
+		// EF
+		"enr:-Iq4QJk4WqRkjsX5c2CXtOra6HnxN-BMXnWhmhEQO9Bn9iABTJGdjUOurM7Btj1ouKaFkvTRoju5vz2GPmVON2dffQKGAX53x8JigmlkgnY0gmlwhLKAlv6Jc2VjcDI1NmsxoQK6S-Cii_KmfFdUJL2TANL3ksaKUnNXvTCv1tLwXs0QgIN1ZHCCIyk",
+		"enr:-KG4QMH842KsJOZAHxI98VJcf8oPr1U8Ylyp2Tb-sNAPniWSCaxIS4F9gc3lGOnROEok7g5qrOm8WgJTl2WXx8MhMmIMhGV0aDKQqX6DZjABcAAKAAAAAAAAAIJpZIJ2NIJpcISygIjpiXNlY3AyNTZrMaECvQMvoDF46BfJgvAbbv1hwpNu9VQBXRIpHS_B8zmkZmmDdGNwgiMog3VkcIIjKA",
+		"enr:-Ly4QDU8tZeygxz1gEeAD4EKe4H_8gg-IanpTY6h8A1YGPv5BPNvCMD77zjHUk_iF1pfG_8DC6jYWbIOD1k5kF-LaG4Bh2F0dG5ldHOIAAAAAAAAAACEZXRoMpCpfoNmMAFwAAoAAAAAAAAAgmlkgnY0gmlwhJK-DYCJc2VjcDI1NmsxoQN4bUae9DwIcq_56DNztksQYXeddTDKRonI5qI3YhN4SohzeW5jbmV0cwCDdGNwgiMog3VkcIIjKA",
+		// Teku
+		"enr:-LK4QMlzEff6d-M0A1pSFG5lJ2c56i_I-ZftdojZbW3ehkGNM4pkQuHQqzVvF1BG9aDjIakjnmO23mCBFFZ2w5zOsugEh2F0dG5ldHOIAAAAAAYAAACEZXRoMpCpfoNmMAFwAAABAAAAAAAAgmlkgnY0gmlwhKyuI_mJc2VjcDI1NmsxoQIH1kQRCZW-4AIVyAeXj5o49m_IqNFKRHp6tSpfXMUrSYN0Y3CCIyiDdWRwgiMo",
+	}
+	OverrideBeaconNetworkConfig(cfg)
+}
+
+// HoleskyConfig defines the config for the Holesky beacon chain testnet.
+func HoleskyConfig() *BeaconChainConfig {
+	cfg := MainnetConfig().Copy()
+	cfg.MinGenesisTime = 1694786100
+	cfg.GenesisDelay = 300
+	cfg.ConfigName = HoleskyName
+	cfg.GenesisForkVersion = []byte{0x00, 0x01, 0x70, 0x00}
+	cfg.SecondsPerETH1Block = 14
+	cfg.DepositChainID = 17000
+	cfg.DepositNetworkID = 17000
+	cfg.AltairForkEpoch = 0
+	cfg.AltairForkVersion = []byte{0x10, 0x1, 0x70, 0x0}
+	cfg.BellatrixForkEpoch = 0
+	cfg.BellatrixForkVersion = []byte{0x20, 0x1, 0x70, 0x0}
+	cfg.CapellaForkEpoch = 256
+	cfg.CapellaForkVersion = []byte{0x30, 0x1, 0x70, 0x0}
+	cfg.DenebForkEpoch = math.MaxUint64
+	cfg.DenebForkVersion = []byte{0x40, 0x1, 0x70, 0x0}
+	cfg.TerminalTotalDifficulty = "0"
+	cfg.DepositContractAddress = "0x4242424242424242424242424242424242424242"
+	cfg.EjectionBalance = 28000000000
+	cfg.InitializeForkSchedule()
+	return cfg
+}

config/params/testnet_holesky_config_test.go

@@ -0,0 +1,28 @@
+package params_test
+
+import (
+	"path"
+	"testing"
+
+	"github.com/bazelbuild/rules_go/go/tools/bazel"
+	"github.com/prysmaticlabs/prysm/v4/config/params"
+	"github.com/prysmaticlabs/prysm/v4/testing/require"
+)
+
+func TestHoleskyConfigMatchesUpstreamYaml(t *testing.T) {
+	presetFPs := presetsFilePath(t, "mainnet")
+	mn, err := params.ByName(params.MainnetName)
+	require.NoError(t, err)
+	cfg := mn.Copy()
+	for _, fp := range presetFPs {
+		cfg, err = params.UnmarshalConfigFile(fp, cfg)
+		require.NoError(t, err)
+	}
+	fPath, err := bazel.Runfile("external/holesky_testnet")
+	require.NoError(t, err)
+	configFP := path.Join(fPath, "custom_config_data", "config.yaml")
+	pcfg, err := params.UnmarshalConfigFile(configFP, nil)
+	require.NoError(t, err)
+	fields := fieldsFromYamls(t, append(presetFPs, configFP))
+	assertYamlFieldsMatch(t, "holesky", fields, pcfg, params.HoleskyConfig())
+}

config/params/values.go

@@ -11,4 +11,5 @@ const (
 	PraterName          = "prater"
 	GoerliName          = "goerli"
 	SepoliaName         = "sepolia"
+	HoleskyName         = "holesky"
 )