server {
    listen 80 default_server;
    server_name _;
    location / {
        return 404;
    }
    location /{{ws_path_prefix}}/ {
        proxy_pass http://127.0.0.1:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}