nginx.conf

server {
    server_name     www.letzmeet.it;

    root /home/sysadmin/webrtc-test/html/public;

    location /dev {
        proxy_pass http://127.0.0.1:1234;
    }

    location = /ws {

        if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization';
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain; charset=utf-8';
                add_header 'Content-Length' 0;
                return 204;
        }


        proxy_pass http://127.0.0.1:8080;

        proxy_http_version 1.1;

        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        proxy_set_header X-Real-IP $remote_addr;

        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_set_header X-NginX-Proxy true;
        break;
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/www.letzmeet.it/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/www.letzmeet.it/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot




}

server {
    if ($host = letzmeet.it) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = www.letzmeet.it) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    server_name     www.letzmeet.it;
    listen 80;
    return 404; # managed by Certbot
}