The Truffle Ledger Wallet Provider lets you deploy your contracts with your ledger wallet.

    npm install truffle-ledger-wallet-provider

Browser support must be disabled and contract data enabled on your ledger device. It can be used like

const providerFactory = require("truffle-ledger-wallet-provider").default;
const provider = providerFactory("https://ropsten.infura.io/", 3, "44'/60'/0'/0");

Parameters:

• providerUri: string. URI of Ethereum client to send all other non-transaction-related Web3 requests.
• networkId: number. Network id of Ethereum network.
• derivationPath: string. Account derivation path.

truffle.js

const providerFactory = require("truffle-ledger-wallet-provider").default;

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 8545,
      network_id: "*" // Match any network id
    },
    ropsten: {
      provider: function () {
          return providerFactory("https://ropsten.infura.io/", 3, "44'/60'/0'/0");
      },
      network_id: 3
    }
  }
};