Nginx prefix/subdirectory

Question

What is happening is that the GLPI project is not loading the files (js, css, php, etc).

The local URL is http://localhost/glpi-grupo/, but all the files in Elements are missin the /glpi-grupo like this: http://localhost/style.css

I need to force them to load with the subdirectory /glpi-grupo

I'm using Nginx and Traefik, all in a Docker container.

My traefik rule:

traefik.frontend.rule: Host:localhost; PathPrefixStrip:/glpi-grupo

My Nginx config:

server {
    listen 80;
    index index.php index.html;
    error_log /var/log/nginx/error.log;
    access_log /var/log/nginx/access.log;
    root /var/www/html;
    location / {
        try_files $uri $uri/ /index.php$is_args$args;
    }
    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param SCRIPT_NAME $fastcgi_script_name;
        fastcgi_param SERVER_NAME $host;
        fastcgi_index index.php;
        fastcgi_pass glpi-grupo:9000;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}