server {
    server_name _;
    listen 80;

    location / {
        root   /var/www/html;
        index  index.html index.htm;
    }

    location CLIENT_WSPATH {
        proxy_redirect off;
        proxy_pass http://127.0.0.1:LISTENING_PORT;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $http_host;
    }

    location ~ \.php$ {
        deny all;
    }
}