server {
    listen 8443 ssl;
    server_name _;

    ssl_certificate /etc/nginx/tls/cert.pem;
    ssl_certificate_key /etc/nginx/tls/key.pem;
    ssl_protocols TLSv1.2 TLSv1.3;

    location / {
        proxy_pass http://guacamole:8080;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_buffering off;
    }
}