https with letsencrypt

server.js

// d run -d --name=ok -p 443:6100 -p 80:6000 --workdir=/home/node -v /etc/letsencrypt/:/etc/letsencrypt/:ro -v $PWD/server.js:/home/node/server.js node node server

var https = require("https");
var http = require("http");
var fs = require("fs");

var p="/etc/letsencrypt/live/ulti.pw/";

var hs=https.createServer({
	key: fs.readFileSync(p+"privkey.pem")+"",
	cert:fs.readFileSync(p+"cert.pem")+"", 
	ca:  fs.readFileSync(p+"chain.pem")+""
}, (req,res) => {
	res.write("ok");
	res.end();
});

var h=http.createServer((req,res) => {
        if (!req.connection.encrypted && (req.method === "GET" || req.method === "HEAD")) {
                res.writeHead(308, {location: "https://" + req.headers.host + req.url});
                return res.end();
        }
        res.write("ko");
        res.end();
});

hs.listen(process.env.HTTPS_PORT || 6100);
h.listen(process.env.HTTP_PORT || 6000);