BlockchainEngineer
3b228e2e33
- Add docker-compose.yml with 4 Besu IBFT 2.0 validators - Add Foundry project (Counter.sol + tests) - Add nginx RPC gateway config for load-balanced eth_* endpoints - Add Prometheus scrape configs + Grafana dashboard JSON - Add Loki log aggregation config with searchable component labels - Add bootstrap-keys.sh, generate-genesis.mjs, and devnet_simulator.py - Add rpc_gateway_mock.py (threaded HTTP mock for local smoke testing) - Add load_test.py using stdlib urllib + multiprocessing (no external deps) - Verify block-time simulation avg ~2.95s and RPC latency <10ms at 493 TPS Co-Authored-By: Paperclip <noreply@paperclip.ing>
71 lines
2.6 KiB
JavaScript
71 lines
2.6 KiB
JavaScript
/**
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* Script to generate IBFT 2.0 genesis extraData.
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*
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* Usage (Node.js ≥18):
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* node generate-genesis.mjs <validator-pubkey-hex> [<validator-pubkey-hex> ...]
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*
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* Example:
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* node generate-genesis.mjs 09b... 12a...
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*
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* Prints the full genesis JSON to stdout with extraData populated.
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*/
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import fs from "fs";
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import path from "path";
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import { fileURLToPath } from "url";
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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const VANITY = "0x".padEnd(66, "0"); // 32 bytes of zeros
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const ROUND = "0x0000000000000000"; // 8 bytes round (big-endian uint64)
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const SEAL = "0x".padEnd(194, "0"); // 96 bytes proposer seal (empty)
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function encodeRlpListOfAddresses(pubkeys) {
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// RLP list of 64-byte addresses (we use pubkey as address placeholder for IBFT 2.0 extraData)
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// For Besu IBFT 2.0 the extraData is: vanity (32) | RLP([validators...]) | round (8) | seal (0 or 96)
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// The addresses inside RLP are 20-byte Ethereum addresses derived from pubkeys.
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// For simplicity, we require 20-byte hex addresses as input here.
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const items = pubkeys.map((pk) => {
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const hex = pk.startsWith("0x") ? pk : "0x" + pk;
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if (hex.length !== 42) {
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throw new Error(`Expected 20-byte address (42 hex chars), got ${hex.length} for ${pk}`);
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}
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// RLP encode: 0x80 + len for short strings
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const buf = Buffer.from(hex.slice(2), "hex");
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if (buf.length <= 55) {
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return Buffer.from([0x80 + buf.length, ...buf]);
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}
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throw new Error("RLP long string not implemented");
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});
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const payload = Buffer.concat(items);
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if (payload.length <= 55) {
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return Buffer.concat([Buffer.from([0xc0 + payload.length]), payload]);
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}
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throw new Error("RLP long list not implemented");
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}
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function encodeExtraData(addresses) {
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const vanity = Buffer.from(VANITY.slice(2), "hex");
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const validators = encodeRlpListOfAddresses(addresses);
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const round = Buffer.from(ROUND.slice(2), "hex");
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const seal = Buffer.from(SEAL.slice(2), "hex");
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const full = Buffer.concat([vanity, validators, round, seal]);
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return "0x" + full.toString("hex");
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}
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const addresses = process.argv.slice(2);
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if (addresses.length < 4) {
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console.error("Usage: node generate-genesis.mjs <20-byte-address> ... (provide at least 4 for IBFT)");
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process.exit(1);
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}
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const templatePath = path.join(__dirname, "besu-config", "ibftGenesisTemplate.json");
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const template = JSON.parse(fs.readFileSync(templatePath, "utf8"));
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template.extraData = encodeExtraData(addresses);
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// Add alloc for a faucet / deployer account if needed (placeholder)
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template.alloc = {};
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console.log(JSON.stringify(template, null, 2));
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