Parse RTC_MIN_PORT and RTC_MAX_PORT

app.js

@@ -42,8 +42,8 @@ app.use('/sfu', express.static(path.join(__dirname, 'public')))
 
 // SSL cert for HTTPS access
 const options = {
-  key: fs.readFileSync("./server/ssl/key.pem", 'utf-8'),
-  cert: fs.readFileSync("./server/ssl/cert.pem", 'utf-8'),
+  key: fs.readFileSync(process.env.SERVER_KEY, 'utf-8'),
+  cert: fs.readFileSync(process.env.SERVER_CERT, 'utf-8'),
 }
 
 const httpsServer = https.createServer(options, app);
@@ -67,8 +67,8 @@ const peers = io.of('/');
 const createWorker = async () => {
   try {
     worker = await mediasoup.createWorker({
-      rtcMinPort: process.env.RTC_MIN_PORT,
-      rtcMaxPort: process.env.RTC_MAX_PORT,
+      rtcMinPort: parseInt(process.env.RTC_MIN_PORT),
+      rtcMaxPort: parseInt(process.env.RTC_MAX_PORT),
     })
     console.log(`[createWorker] worker pid ${worker.pid}`);