Enable clustering

Dockerfile

@@ -3,6 +3,9 @@ FROM node:18
 # Set up a new user named "user" with user ID 1000
 RUN useradd -o -u 1000 user
 
+# Install pm2
+RUN npm install pm2 -g
+
 # Switch to the "user" user
 USER user
 
@@ -26,4 +29,5 @@ RUN cat .env
 RUN npm run build
 
 EXPOSE 7860
-CMD [ "npm", "run", "start" ]
+# CMD [ "npm", "run", "start" ]
+CMD ["pm2-runtime", "processes.json"]

processes.json

@@ -0,0 +1,8 @@
+[
+  {
+    "script": "dist/server.js",
+    "instances": "max",
+    "exec_mode": "cluster",
+    "node_args": "--experimental-specifier-resolution=node"
+  }
+]

src/server.ts

@@ -37,5 +37,7 @@ app.get('*', (_req, res) => {
 });
 
 app.listen(PORT, () => {
-  console.log(`Server listening at http://localhost:${PORT}`);
+  console.log(
+    `[${process.env.pm_id ?? ''}]Server listening at http://localhost:${PORT}`
+  );
 });