Unable to host on ports different from 3000

[realJogicodes]

I am struggling to host my svelte kit application on ports other than 3000. I do not know what I am doing wrong either. Maybe you guys have an idea. I run more than one application on this machine, hence the need for a different port, 3001 maybe. Anyway, I use pm2 so I thought

pm2 start index.js --name app-2 --env PORT=3001

would do the trick. It did not.

The next idea was to change `vite.config.ts

import { sveltekit } from '@sveltejs/kit/vite';
import { defineConfig } from 'vite';
import { fileURLToPath, URL } from 'url';

export default defineConfig({
	plugins: [sveltekit()],
	server: {
		host: 'localhost',
		port: 3001,
		strictPort: true
	},
	resolve: {
		alias: {
			$content: fileURLToPath(new URL('./src/content', import.meta.url))
		}
	},
	build: {
		rollupOptions: {
			external: [/^node:.*/, '@sveltejs/kit', '@sveltejs/adapter-vercel', 'resend']
		}
	},
	ssr: {
		noExternal: ['@sveltejs/kit', '@sveltejs/adapter-vercel'],
		external: ['resend']
	}
});

When I build it like this, I do get const port = env('PORT', !path && '3000'); in my build/index.js file, surprisingly.

The only way I can pull this off is if I go into that file and modify it to const port = env('PORT', !path && '3001'); after building and then run pm2, that works, but that's not practical because every time I make a change to the application I am going to have to manually do this, and that's no good.

[brunnerh]

That is not how --env on PM2 works, according to the documentation it can be given a key that picks variables from a configuration file, e.g. --env production loads the key env_production.

According to the docs, you can just set the variables for the pm2 call itself, e.g. on Unix systems:

PORT=3001 pm2 ...

The 3000 in the Node adapter output appears to be hard-coded and thus cannot be changed via configuration/env at build time. It is meant to be set via the environment on start, though a prefix can be added so you can e.g. have MY_APP_PORT instead of just PORT.

[realJogicodes]

thanks. Initially, I had the variable in front like you said, same outcome but I never had it on built too. Will try that tomorrow and report back

[brunnerh]

On build does nothing, I had misinterpreted the docs on that.