235 lines
8.1 KiB
Nim
235 lines
8.1 KiB
Nim
import
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confutils, strutils, strformat, os
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const
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rootDir = thisDir() / ".."
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bootstrapTxtFileName = "bootstrap_nodes.txt"
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bootstrapYamlFileName = "boot_enr.yaml"
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depositContractFileName = "deposit_contract.txt"
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depositContractBlockFileName = "deposit_contract_block.txt"
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genesisFile = "genesis.ssz"
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configFile = "config.yaml"
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testnetsRepo = "eth2-testnets"
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web3Url = "wss://goerli.infura.io/ws/v3/809a18497dd74102b5f37d25aae3c85a"
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let
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testnetsOrg = getEnv("ETH2_TESTNETS_ORG", "eth2-clients")
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testnetsGitUrl = getEnv("ETH2_TESTNETS_GIT_URL", "https://github.com/" & testnetsOrg & "/" & testnetsRepo)
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mode = Verbose
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proc validateTestnetName(parts: openarray[string]): auto =
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if parts.len != 2:
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echo "The testnet name should have the format `client/network-name`"
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quit 1
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(parts[0], parts[1])
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# reduces the error output when interrupting an external command with Ctrl+C
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proc execIgnoringExitCode(s: string) =
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try:
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exec s
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except OsError:
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discard
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proc updateTestnetsRepo(allTestnetsDir, buildDir: string) =
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rmDir(allTestnetsDir)
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let cwd = system.getCurrentDir()
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cd buildDir
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exec &"git clone --quiet --depth=1 {testnetsGitUrl}"
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cd cwd
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proc makePrometheusConfig(nodeID, baseMetricsPort: int, dataDir: string) =
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# macOS may not have gnu-getopts installed and in the PATH
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execIgnoringExitCode &"""./scripts/make_prometheus_config.sh --nodes """ & $(1 + nodeID) & &""" --base-metrics-port {baseMetricsPort} --config-file "{dataDir}/prometheus.yml""""
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proc buildNode(nimFlags, preset, beaconNodeBinary: string) =
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exec &"""nim c {nimFlags} -d:"const_preset={preset}" -o:"{beaconNodeBinary}" beacon_chain/beacon_node.nim"""
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proc becomeValidator(validatorsDir, beaconNodeBinary, secretsDir, depositContractOpt: string) =
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mode = Silent
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echo "\nPlease enter your Goerli Eth1 private key in hex form (e.g. 0x1a2...f3c) in order to become a validator (you'll need access to 32 GoETH)."
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echo "Hit Enter to skip this."
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# is there no other way to print without a trailing newline?
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exec "printf '> '"
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let privKey = readLineFromStdin()
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if privKey.len > 0:
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mkDir validatorsDir
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mode = Verbose
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exec replace(&"""{beaconNodeBinary} deposits create
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--count=1
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--out-deposits-dir="{validatorsDir}"
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--out-secrets-dir="{secretsDir}"
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--deposit-private-key={privKey}
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--web3-url={web3Url}
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{depositContractOpt}
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""", "\n", " ")
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mode = Silent
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echo "\nDeposit sent, wait for confirmation then press enter to continue"
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discard readLineFromStdin()
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proc runNode(dataDir, beaconNodeBinary, bootstrapFileOpt, depositContractOpt, genesisFileOpt: string,
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basePort, nodeID, baseMetricsPort, baseRpcPort: int, printCmdOnly: bool) =
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let logLevel = getEnv("LOG_LEVEL")
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var logLevelOpt = ""
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if logLevel.len > 0:
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logLevelOpt = &"""--log-level="{logLevel}" """
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mode = Verbose
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let cmd = replace(&"""{beaconNodeBinary}
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--data-dir="{dataDir}"
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--dump
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--web3-url={web3Url}
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--tcp-port=""" & $(basePort + nodeID) & &"""
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--udp-port=""" & $(basePort + nodeID) & &"""
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--metrics
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--metrics-port=""" & $(baseMetricsPort + nodeID) & &"""
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--rpc
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--rpc-port=""" & $(baseRpcPort + nodeID) & &"""
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{bootstrapFileOpt}
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{logLevelOpt}
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{depositContractOpt}
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{genesisFileOpt} """, "\n", " ")
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if printCmdOnly:
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echo &"cd {dataDir}; exec {cmd}"
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else:
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cd dataDir
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execIgnoringExitCode cmd
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cli do (skipGoerliKey {.
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desc: "Don't prompt for an Eth1 Goerli key to become a validator" .}: bool,
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specVersion {.
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desc: "Spec version"
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name: "spec" .}: string = "v0.11.3",
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constPreset {.
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desc: "The Ethereum 2.0 const preset of the network (optional)"
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name: "const-preset" .} = "",
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nodeID {.
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desc: "Node ID" .} = 0.int,
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basePort {.
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desc: "Base TCP/UDP port (nodeID will be added to it)" .} = 9000.int,
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baseMetricsPort {.
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desc: "Base metrics port (nodeID will be added to it)" .} = 8008.int,
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baseRpcPort {.
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desc: "Base rpc port (nodeID will be added to it)" .} = 9190.int,
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writeLogFile {.
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desc: "Write a log file in dataDir" .} = true,
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buildOnly {.
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desc: "Just the build, please." .} = false,
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runOnly {.
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desc: "Just run it." .} = false,
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printCmdOnly {.
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desc: "Just print the commands (suitable for passing to 'eval'; might replace current shell)." .} = false,
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testnetName {.argument .}: string):
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let
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nameParts = testnetName.split "/"
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(team, testnet) = if nameParts.len > 1: validateTestnetName nameParts
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else: ("nimbus", testnetName)
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let
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buildDir = rootDir / "build"
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allTestnetsDir = buildDir / testnetsRepo
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if not runOnly:
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updateTestnetsRepo(allTestnetsDir, buildDir)
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var
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depositContractOpt = ""
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bootstrapFileOpt = ""
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genesisFileOpt = ""
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let
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testnetDir = allTestnetsDir / team / testnet
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genesisFilePath = testnetDir / genesisFile
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if not system.dirExists(testnetDir):
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echo &"No metadata files exists for the '{testnetName}' testnet"
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quit 1
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if system.fileExists(genesisFilePath):
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genesisFileOpt = &"--state-snapshot=\"{genesisFilePath}\""
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let bootstrapTxtFile = testnetDir / bootstrapTxtFileName
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if system.fileExists(bootstrapTxtFile):
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bootstrapFileOpt = &"--bootstrap-file=\"{bootstrapTxtFile}\""
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else:
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let bootstrapYamlFile = testnetDir / bootstrapYamlFileName
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if system.fileExists(bootstrapYamlFile):
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bootstrapFileOpt = &"--bootstrap-file=\"{bootstrapYamlFile}\""
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else:
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echo "Warning: the network metadata doesn't include a bootstrap file"
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var preset = testnetDir / configFile
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if not system.fileExists(preset):
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preset = constPreset
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if preset.len == 0: preset = "minimal"
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doAssert specVersion in ["v0.11.3", "v0.12.1"]
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let
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dataDirName = testnetName.replace("/", "_")
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.replace("(", "_")
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.replace(")", "_") & "_" & $nodeID
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dataDir = buildDir / "data" / dataDirName
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validatorsDir = dataDir / "validators"
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secretsDir = dataDir / "secrets"
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beaconNodeBinary = buildDir / "beacon_node_" & dataDirName
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specDefines =
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if specVersion == "v0.12.1":
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&"-d:ETH2_SPEC=\"v0.12.1\" -d:BLS_ETH2_SPEC=\"v0.12.x\""
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else:
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&"-d:ETH2_SPEC=\"v0.11.3\" -d:BLS_ETH2_SPEC=\"v0.11.x\""
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var
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nimFlags = &"-d:chronicles_log_level=TRACE {specDefines} " & getEnv("NIM_PARAMS")
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if writeLogFile:
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# write the logs to a file
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nimFlags.add """ -d:"chronicles_sinks=textlines,json[file(nbc""" & staticExec("date +\"%Y%m%d%H%M%S\"") & """.log)]" """
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let depositContractFile = testnetDir / depositContractFileName
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if system.fileExists(depositContractFile):
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depositContractOpt = "--deposit-contract=" & readFile(depositContractFile).strip
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let depositContractBlockFile = testnetDir / depositContractBlockFileName
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if system.fileExists(depositContractBlockFile):
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depositContractOpt.add " --deposit-contract-block=" & readFile(depositContractBlockFile).strip
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if system.dirExists(dataDir):
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block resetDataDir:
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# We reset the testnet data dir if the existing data dir is
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# incomplete (it misses a genesis file) or if it has a genesis
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# file from an older testnet:
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if system.fileExists(dataDir/genesisFile):
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let localGenesisContent = readFile(dataDir/genesisFile)
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let testnetGenesisContent = readFile(testnetDir/genesisFile)
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if localGenesisContent == testnetGenesisContent:
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break
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echo "Detected testnet restart. Deleting previous database..."
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rmDir dataDir
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cd rootDir
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mkDir dataDir
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if not runOnly:
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makePrometheusConfig(nodeID, baseMetricsPort, dataDir)
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buildNode(nimFlags, preset, beaconNodeBinary)
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if not skipGoerliKey and depositContractOpt.len > 0 and not system.dirExists(validatorsDir):
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becomeValidator(validatorsDir, beaconNodeBinary, secretsDir, depositContractOpt)
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if not buildOnly:
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runNode(dataDir, beaconNodeBinary, bootstrapFileOpt, depositContractOpt, genesisFileOpt,
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basePort, nodeID, baseMetricsPort, baseRpcPort, printCmdOnly)
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