Add: Workers support

src/config.ts

@@ -4,6 +4,7 @@ export const config: Config = {
   port: Number(process.env.PORT ?? 3000),
   host: process.env.HOST ?? '0.0.0.0',
   logger: Boolean(Number(process.env.LOGGER) ?? 0),
+  workers: Number(process.env.WORKERS ?? 1),
   png: {
     enabled: Boolean(Number(process.env.PNG ?? 1)),
     size: {

src/server.ts

@@ -1,7 +1,26 @@
+import cluster from "node:cluster";
 import { config } from './config.js';
 import { app } from './app.js';
 
-(async () => {
+const useCluster = config.workers > 1;
+
+if (cluster.isPrimary && useCluster) {
+  for (let i = 0; i < config.workers; i++) {
+    cluster.fork();
+  }
+
+  cluster.on(
+    "exit",
+    (worker, code, signal) => {
+      console.log(`Worker ${worker.process.pid} died with code ${code} and signal ${signal}`);
+
+      // Fork a new worker
+      cluster.fork();
+    },
+  );
+} else {
+  console.log(`Worker ${process.pid} started`);
+
   const server = await app();
 
   server.listen(
@@ -18,4 +37,4 @@ import { app } from './app.js';
       console.info(`Server listening at http://${config.host}:${config.port}`);
     }
   );
-})();
+}

src/types.ts

@@ -14,6 +14,7 @@ export type Config = {
   port: number;
   host: string;
   logger: boolean;
+  workers: number,
   versions: number[];
   png: {
     enabled: boolean;