Pour gérer les certificats letsencrypt utiliser la commande certbot
https://eff-certbot.readthedocs.io/en/stable/using.html#certbot-commands

Obtenir la liste des certificats
<code | download>
certbot certificates
</code>

 obtain, install, and renew certificates:
              (default) run   Obtain & install a certificate in your current webserver
              certonly        Obtain or renew a certificate, but do not install it
              renew           Renew all previously obtained certificates that are near expiry
              enhance         Add security enhancements to your existing configuration
             -d DOMAINS       Comma-separated list of domains to obtain a certificate for

 manage certificates:
              certificates    Display information about certificates you have from Certbot
              revoke          Revoke a certificate (supply --cert-path)
              delete          Delete a certificate
              
  manage your account with Let's Encrypt:
              register        Create a Let's Encrypt ACME account
            --agree-tos       Agree to the ACME server's Subscriber Agreement
             -m EMAIL         Email address for important account notifications
source https://man.cx/certbot