[리눅스] Let's Encrypt(certbot) SSL 인증서 발급

Let's Encrypt(certbot) SSL 인증서 발급-DNS

$ cat certbot.sh
docker run -it --rm --name certbot \
  -v '/etc/letsencrypt:/etc/letsencrypt' \
  -v '/var/lib/letsencrypt:/var/lib/letsencrypt' \
  certbot/certbot certonly -d '*.4wxyz.com' \
  --manual --preferred-challenges dns \
  --server https://acme-v02.api.letsencrypt.org/directory

$ chmod +x certbot.sh

$ sh certbot.sh
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Obtaining a new certificate
Performing the following challenges:
dns-01 challenge for 4wxyz.com

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
NOTE: The IP of this machine will be publicly logged as having requested this
certificate. If you're running certbot in manual mode on a machine that is not
your server, please ensure you're okay with that.

Are you OK with your IP being logged?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(Y)es/(N)o: y
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Please deploy a DNS TXT record under the name
_acme-challenge.4wxyz.com with the following value:

UTECS7sGUjtKAMICmqn9t9owcxFgRgjy6Wwx64SAPBk

Before continuing, verify the record is deployed.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Press Enter to Continue

<=== Register txt record on dns server(/etc/resolv.conf Authoritative DNS server) ===>

Waiting for verification...
Cleaning up challenges

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/4wxyz.com/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/4wxyz.com/privkey.pem
   Your cert will expire on 2019-09-09. 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

$ ls -l /etc/letsencrypt/live/4wxyz.com/*
lrwxrwxrwx 1 root root  33 Jun 11 14:14 /etc/letsencrypt/live/4wxyz.com/cert.pem -> ../../archive/4wxyz.com/cert1.pem
lrwxrwxrwx 1 root root  34 Jun 11 14:14 /etc/letsencrypt/live/4wxyz.com/chain.pem -> ../../archive/4wxyz.com/chain1.pem
lrwxrwxrwx 1 root root  38 Jun 11 14:14 /etc/letsencrypt/live/4wxyz.com/fullchain.pem -> ../../archive/4wxyz.com/fullchain1.pem
lrwxrwxrwx 1 root root  36 Jun 11 14:14 /etc/letsencrypt/live/4wxyz.com/privkey.pem -> ../../archive/4wxyz.com/privkey1.pem
-rw-r--r-- 1 root root 692 Jun 11 14:14 /etc/letsencrypt/live/4wxyz.com/README

---

$ sh certbot_renew.sh
docker run -it --rm --name certbot \
  -v '/etc/letsencrypt:/etc/letsencrypt' \
  -v '/var/lib/letsencrypt:/var/lib/letsencrypt' \
  certbot/certbot --renew-by-default certonly -d '*.4wxyz.com' \
  --manual --preferred-challenges dns \
  --server https://acme-v02.api.letsencrypt.org/directory

$ chmod +x certbot_renew.sh

$ sh certbot_renew.sh
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Renewing an existing certificate

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/4wxyz.com/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/4wxyz.com/privkey.pem
   Your cert will expire on 2019-09-09. 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

$ crontab -l
### domain renew
00 10 1-7 * *   [ "`date '+\%a'`" == Mon ] && /bin/bash /app/letsencrypt/certbot_renew.sh > /dev/null 2>&1