root@nginx:/etc/nginx/conf.d# certbot certonly --webroot -w /var/www/letsencrypt/ -d gp67.app.ivoice.online
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for gp67.app.ivoice.online
Using the webroot path /var/www/letsencrypt for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Running post-hook command: systemctl restart nginx

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/gp67.app.ivoice.online/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/gp67.app.ivoice.online/privkey.pem
   Your cert will expire on 2019-11-27. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot
   again. 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