DevOps / Scripts bash Advanced

Automated SSL Wildcard via DNS

Issue a Let's Encrypt wildcard certificate using Certbot with Cloudflare DNS challenge.

bash 
#!/bin/bash
certbot certonly \
  --dns-cloudflare \
  --dns-cloudflare-credentials ~/.secrets/cf.ini \
  -d "*.example.com" \
  -d "example.com" \
  --preferred-challenges dns-01 \
  --email admin@example.com \
  --agree-tos --non-interactive

Prerequisites

  • certbot-dns-cloudflare
  • Cloudflare API token

Pro Tips

  • → Store credentials in ~/.secrets/cf.ini with chmod 600.

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Commercial Licensing

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Module Info

Language
bash
Level
Advanced
Read time
4 min
Published
Jul 2025
License
Commercial License

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