unkinben c0c75d1bbb Add Let's Encrypt RFC2136/TSIG ClusterIssuers (#327)
Publicly-trusted wildcard certs via Let's Encrypt DNS-01, solved over RFC2136/TSIG against our own BIND. A one-time CNAME self-delegates `_acme-challenge.unkin.net` into the `acme.unkin.net` zone served by bind-external; cert-manager writes the challenge TXT there. No GCP/clouddns and no Vault secret involved. The existing `vault-issuer` (internal PKI) is untouched.

- Add ClusterIssuers `letsencrypt` (prod) and `letsencrypt-staging`, both using a dns01 rfc2136 solver: nameserver `198.18.199.53:53`, key `certmanager`, HMACSHA256, `tsigSecretSecretRef` -> reflected Secret `certmanager-tsig` key `secret`.
- Whitelist `cert-manager.io ClusterIssuer` in the platform AppProject.

Depends on #329 (bind-external: the acme.unkin.net zone, the certmanager TSIG key reflected into cert-manager, and the 198.18.199.53 nameserver) and on the one-time Google Cloud DNS delegation + NAT of the public IP :53 to 198.18.199.53. Earlier clouddns/Vault commits on this branch are reverted.

---------

Co-authored-by: Ben Vincent <neotheo@gmail.com>
Reviewed-on: #327
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-08-02 17:47:39 +10:00
2026-03-01 16:34:01 +11:00

argocd-apps docs

Operational notes for the manifests in this repo.

Doc What it covers
cnpg-backups.md How CNPG Postgres backups (WAL archiving + nightly base backups) to Ceph RGW are configured.
cnpg-restore.md Restoring a CNPG cluster: full recovery, point-in-time recovery, cutover, and gotchas.
authentik-rancher-sso.md Manual runtime step to point Rancher's OIDC auth at the canonical identity.unkin.net issuer and trust the internal CA.
gitea-migration.md Staged cutover of the git.unkin.net forge from the Puppet VM to the gitea namespace.
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