sudo apt-get update
sudo apt-get install software-properties-common
sudo add-apt-repository -y ppa:certbot/certbot
sudo apt-get update
sudo apt-get install -y python-certbot-nginx

vim /etc/nginx/conf.d/fundebug.conf

server
{
    listen 80;
    server_name www.fundebug.com;
}

systemctl restart nginx

certbot --nginx -d www.fundebug.com -n --email help@fundebug.com --agree-tos

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/www.fundebug.com/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/www.fundebug.com/privkey.pem
   Your cert will expire on 2018-09-29. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot again
   with the "certonly" option. To non-interactively renew *all* of
   your certificates, run "certbot renew"
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

find /etc/letsencrypt/ -name "*www.fundebug.com*"
/etc/letsencrypt/renewal/www.fundebug.com.conf
/etc/letsencrypt/archive/www.fundebug.com
/etc/letsencrypt/live/www.fundebug.com

cat /etc/nginx/conf.d/fundebug.conf

server
{
    listen 80;
    server_name www.fundebug.com;

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/www.fundebug.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/www.fundebug.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}