truffle.js example for Rinkeby network

truffle.js

const HDWalletProvider = require("truffle-hdwallet-provider");
const privKey = "";
const rinkebyApi = "https://rinkeby.infura.io/v3/<endpoint>";

const youraddress = "";

module.exports = {
  networks: {
  // Useful for testing. The `development` name is special - truffle uses it by default
  // if it's defined here and no other network is specified at the command line.
  // You should run a client (like ganache-cli, geth or parity) in a separate terminal
  // tab if you use this network and you must also set the `host`, `port` and `network_id`
  // options below to some value.
  //
  development: {
    host: "127.0.0.1",     // Localhost (default: none)
    port: 8545,            // Standard Ethereum port (default: none)
    network_id: "*",       // Any network (default: none)
  },

  rinkeby: {
    provider: function() {
      return new HDWalletProvider(
        [privKey], rinkebyApi, 0, 1
      );
    },
    network_id: 4,
    gas: 500000,
    gasPrice: 10000000000,
    from: youraddress
  }
}