Use of this plugin requires a configuration file containing Cloudflare API credentials, obtained from your Cloudflare account page.
Example credentials file:
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# Cloudflare API credentials used by Certbot dns_cloudflare_email = firstname.lastname@example.org dns_cloudflare_api_key = 0123456789abcdef0123456789abcdef01234567
The path to this file can be provided interactively or using the –dns-cloudflare-credentials command-line argument. Certbot records the path to this file for use during renewal, but does not store the file’s contents.