user nginx;
worker_processes auto;
worker_rlimit_nofile 100000;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
include /usr/share/nginx/modules/*.conf;

events {
        worker_connections 4000;
        use epoll;
        multi_accept on;
}

http {
        include            /etc/nginx/mime.types;
        default_type       application/octet-stream;


        map $ssl_server_name $ssl_domain_name {
                volatile;
                hostnames;
                ~^((?<subdomain>.*)\.)(?<domain>[^.]+)\.(?<tld>[^.]+)$ $domain.$tld;
                ~^(?<domain>[^.]+)\.(?<tld>[^.]+)$ $domain.$tld;
        }

        server {
                listen 443 ssl http2;
                server_name _;

                ssl_certificate     "/etc/letsencrypt/live/$ssl_domain_name/fullchain.pem";
                ssl_certificate_key "/etc/letsencrypt/live/$ssl_domain_name/privkey.pem";
                ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
                ssl_prefer_server_ciphers on;
                ssl_dhparam /etc/ssl/certs/dhparam.pem;
                ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
                ssl_session_timeout 1d;
                ssl_session_cache shared:SSL:50m;
                ssl_stapling on;
                ssl_stapling_verify on;
                add_header Strict-Transport-Security max-age=15768000;

                root /opt/www/$host/;
                index index.html;

                location / {
                        try_files $uri $uri/ /index.html?$args;
                }
        }

        server {
                listen 80;
                server_name _;
                return 301 https://$host$request_uri;
        }
}