add ssl support

server.js

@@ -0,0 +1,33 @@
+import { handler } from "./build/handler.js";
+import express from "express";
+import fs from "fs";
+import http from "http";
+import https from "https";
+
+const privateKey = fs.readFileSync("./ssl/key.pem", "utf8");
+const certificate = fs.readFileSync("./ssl/cert.pem", "utf8");
+const credentials = { key: privateKey, cert: certificate };
+
+const app = express();
+
+const httpServer = http.createServer(app);
+const httpsServer = https.createServer(credentials, app);
+
+const PORT = 80;
+const SSLPORT = 443;
+
+httpServer.listen(PORT, function () {
+	console.log("HTTP Server is running on: http://localhost:%s", PORT);
+});
+
+httpsServer.listen(SSLPORT, function () {
+	console.log("HTTPS Server is running on: https://localhost:%s", SSLPORT);
+});
+
+// add a route that lives separately from the SvelteKit app
+app.get("/healthcheck", (req, res) => {
+	res.end("ok");
+});
+
+// let SvelteKit handle everything else, including serving prerendered pages and static assets
+app.use(handler);