Let’s Encryptの期限をもっと簡単に確認する

以前の記事で、ssl-cert-checkを使って証明書の期限を確認したのだが、Let’s Encryptを使っているなら、もっと簡単なやり方があったので、メモ。
Let’s Encryptの期限をCLIで確認する

# certbot certificates

と打つだけ。

# certbot certificates
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Attempting to parse the version 0.26.1 renewal configuration file found at /etc/letsencrypt/renewal/www.yoshi.net.conf with version 0.23.0 of Certbot. This might not work.

-------------------------------------------------------------------------------
Found the following certs:
  Certificate Name: www.yoshi.net
    Domains: www.yoshi.net
    Expiry Date: 2018-10-27 05:54:35+00:00 (VALID: 89 days)
    Certificate Path: /etc/letsencrypt/live/www.yoshi.net/fullchain.pem
    Private Key Path: /etc/letsencrypt/live/www.yoshi.net/privkey.pem
-------------------------------------------------------------------------------

参考：https://certbot.eff.org/docs/using.html#managing-certificates