<VirtualHost *:80>
    ServerName www.site.ru
    ServerAlias site.ru
    DocumentRoot /var/www/site/public
    ErrorLog /var/log/httpd/site/error.log
    CustomLog /var/log/httpd/site/requests.log combined
</VirtualHost>

<IfModule mod_ssl.c>
<VirtualHost *:443>
    ServerName www.site.ru
    ServerAlias site.ru
    DocumentRoot /var/www/site/public
    ErrorLog /var/log/httpd/site/error.log
    CustomLog /var/log/httpd/site/requests.log combined

SSLCertificateFile /etc/letsencrypt/live/site/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/site/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
</VirtualHost>
</IfModule>

# apachectl -M | grep ssl
 ssl_module (shared)