Files
argocd-apps/apps/base/cert-manager/clusterissuer_letsencrypt.yaml
unkinben 4fc4aed358 Add cnameStrategy: Follow to ACME DNS-01 solvers (#331)
A live DNS-01 smoke test returned NOTAUTH because the solver walked _acme-challenge.unkin.net to zone unkin.net and sent the rfc2136 UPDATE there, but bind-external is only authoritative for acme.unkin.net; without cnameStrategy: Follow the solver does not chase the delegation CNAME.

- Set `cnameStrategy: Follow` on the `letsencrypt` and `letsencrypt-staging` ClusterIssuer DNS-01 solvers so cert-manager follows the `_acme-challenge.unkin.net -> _acme-challenge.acme.unkin.net` CNAME and updates the `acme.unkin.net` zone.

https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT
---------

Co-authored-by: Ben Vincent <neotheo@gmail.com>
Reviewed-on: #331
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-08-02 19:01:32 +10:00

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539 B
YAML

---
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
name: letsencrypt
spec:
acme:
server: https://acme-v02.api.letsencrypt.org/directory
email: admin@unkin.net
privateKeySecretRef:
name: letsencrypt-account-key
solvers:
- dns01:
cnameStrategy: Follow
rfc2136:
nameserver: "198.18.199.53:53"
tsigKeyName: certmanager
tsigAlgorithm: HMACSHA256
tsigSecretSecretRef:
name: certmanager-tsig
key: secret