Issue Deploying Laravel PHP

Hello, i'm trying to deploy an already existing project made in PHP, using Laravel, and i'm trying to change the homologation environment to Railway. I need to make the Dockerfile (this projects was a terror to set the container) and tried to do the deploy, set up the database, runned the migrations and seeder, all's good. But the problem starts when i tried to access the public URL, i'm recieving an 503 HTTP code, the command is "php artisan serve", and this is the output log:
INFO Server running on [http://127.0.0.1:8000]. Press Ctrl+C to stop the server

1ddd0bae-4190-4ab3-9482-e68f0992d799

have a look at this docs page
https://docs.railway.app/troubleshoot/fixing-common-errors

Thxxxxx!! Worked!

no prob 🙂