Hidden-primary DNS for ~91 zones: CoreDNS + custom rfc2136 plugin for self-hosted ACME DNS-01. Source of truth for zones/, Corefile, deploy configs.
Ryan Malloy
cc33fcbcc8
Wires Caddy as the ACME client side of our new self-hosted DNS-01 flow. Proves the design end-to-end: caddy-dns/rfc2136 -> our CoreDNS rfc2136 plugin -> zone file write -> git auto-commit -> HE AXFR -> LE validates -> cert issued. Changes: - caddy/Dockerfile: --with github.com/caddy-dns/rfc2136 added alongside the existing caddy-dns/vultr. - caddy/Caddyfile: new test-rfc2136.supported.systems site that uses the new provider. server coredns:53 (docker internal), key from env, propagation_delay 60s + timeout 600s to accommodate HE pull. - docker-compose.yml: ACME_TSIG_SECRET passed to the caddy container (the same secret CoreDNS verifies on the other side of the loop). First cert issued in production: 2026-05-21 ~13:23 UTC. ~5.5 min end-to-end from Caddy starting to cert in hand. Documented in session notes; the cert sits unused in caddy-data/ until/unless something publishes ports 80/443 for that hostname. |
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| caddy | ||
| coredns | ||
| scripts | ||
| secondary | ||
| test | ||
| zones | ||
| .env.example | ||
| .env.local.example | ||
| .gitignore | ||
| CLAUDE.md | ||
| Corefile | ||
| docker-compose.yml | ||
| Makefile | ||