Configuration of geoserver.conf for https reverse proxy using nginx on Ubuntu 18.04

geoserver.conf

server {
        listen 80;
        listen [::]:80;
        
        if ($scheme != "https"){
                return 301 https://$host$request_uri;
        }
        listen 443 ssl;
        listen [::]:443 ssl;
        ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
        
        server_name site.example.com;
        
        root /usr/share/nginx/www;
        index index.html index.htm;
        
        proxy_redirect off;
        location /geoserver {
                proxy_pass http://127.0.0.1:8080/geoserver;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
}