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docs(cloudflare): add section to describe selecting a custom CA

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Henry Arend 2025-05-22 09:44:22 -04:00
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docs/tutorials/cloudflare.md
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@ -320,6 +320,8 @@ See [Cloudflare for Platforms](https://developers.cloudflare.com/cloudflare-for-
This feature is disabled by default and supports the `--cloudflare-custom-hostnames-min-tls-version` and `--cloudflare-custom-hostnames-certificate-authority` flags.
`--cloudflare-custom-hostnames-certificate-authority` defaults to not selecting a CA. If a specific CA is required use this flag to select one.
The custom hostname DNS must resolve to the Cloudflare DNS record (`external-dns.alpha.kubernetes.io/hostname`) for automatic certificate validation via the HTTP method. It's important to note that the TXT method does not allow automatic validation and is not supported.
Requires [Cloudflare for SaaS](https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/) product and "SSL and Certificates" API permission.