https://github.com/HappyFunCorp/Webthereum/blob/master/node/deploy.js

deploy.js

var Web3 = require('web3');
var solc = require('solc');
var fs = require('fs');
var tx = require('ethereumjs-tx');

const web3 = new Web3(new Web3.providers.HttpProvider("https://rinkeby.infura.io/"));

deployContract();
// showABI();

function deployContract() {
  web3.eth.getTransactionCount(process.env.RINKEBY_ADDRESS).then((txnCount) => {
    console.log("txn count", txnCount);
    const source = fs.readFileSync(__dirname+'/../truffle/contracts/MyPrize.sol');
    const compiled = solc.compile(source.toString(), 1);
    const bytecode = compiled.contracts[':MyPrize'].bytecode;
    const rawContractTx = {
        from: process.env.RINKEBY_ADDRESS,
        nonce: web3.utils.toHex(txnCount),
        gasLimit: web3.utils.toHex(4000000),
        gasPrice: web3.utils.toHex(20000000000),
        data: '0x' + bytecode,
    };
    console.log("contract deploying...");
    sendRaw(rawContractTx);
  });
}

function showABI() {
    const source = fs.readFileSync(__dirname+'/../truffle/contracts/MyPrize.sol');
    const compiled = solc.compile(source.toString(), 1);
    const abi = compiled.contracts[':MyPrize'].interface;
    console.log("abi", abi);  
}

function sendRaw(rawTx) {
    var privateKey = new Buffer(process.env.RINKEBY_KEY, 'hex');
    var transaction = new tx(rawTx);
    transaction.sign(privateKey);
    var serializedTx = transaction.serialize().toString('hex');
    web3.eth.sendSignedTransaction(
    '0x' + serializedTx, function(err, result) {
        if(err) {
            console.log("txn err", err);
        } else {
            console.log("txn result", result);
        }
    });
}