Nginx - running php and node app in the same domain with different ports

I'm setting up a blocks in nginx, but I'm having trouble running two separate apps, see the following situation:

• I have 2 apps (PHP and Node.js)
• just a domain (example.com) and need to point port 80 for the PHP application and 8080 for the node.js app.
• I've already done the PHP app pointing and it's ok, but I can not access the app node on the 8080

See my block file for php

server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    server_name exemplo.br;

    # root directive should be global
    root   /var/www/app-php/public;
    index  index.php;

    access_log /var/www/app-php/log/access.log;
    error_log  /var/www/app-php/log/error.log;

    client_max_body_size 1024M;

    location / {
        try_files $uri $uri/ /index.php?$args;
    }


    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
   }

   location  ~ /\.ht{
       deny all;
   }

}

And the block of node.js

server {
    listen 8080;

    location / {
            proxy_pass http://localhost:3000;
            # proxy_pass http://127.0.0.1:3000;
            # proxy_pass http://IP-PRIVADO-SERVER:3000;
            # proxy_pass http://exemplo.com.br:3000;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection 'upgrade';
            proxy_set_header Host $host:8080;
            # proxy_set_header Host $host;
            proxy_cache_bypass $http_upgrade;
    }

}

Can anyone tell me what might be wrong, please?

Note: on the server that I am configuring nginx does not have iptables installed and I already tested the application node.js on port 80 and it worked normal.