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Thanks for asking. I am not aware about cert manager but I guess they should be supporting Dynamic Updates (RFC 2136) which you can then use with the DNS server. The blog post explains how to use it with certbot. I would suggest that you explore if that is supported and try it. |
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Hello, trying to setup wildcard issuance with cert-manager and LetsEncrypt on a bare-metal Kubernetes cluster.
It seems that when trying to use wildcards, DNS-01 challenge is enforced. Luckily, cert-manager provides a generic webhook feature so that we can use our own API to add and remove records.
I also found a blog post on the Technitium blog which gives examples on how to use the API for adding and removing DNS-01 TXT challenge entries:
Kubernetes Issuer:
Cert-manager sends a JSON payload to the URL specified and that payload contains the data for adding/removing the TXT record. I couldn't find any details on what exactly is in this payload.
Before I go down a rabbit hole making some webhook middleman to do the translation between cert-manager and Technitium DNS, I was wondering if anyone had already done this before? There doesn't seem to be an App in the Technitium App Store for this.
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