jakman85andClaude Opus 4.8
af4f6c07ae
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
33 lines
1.3 KiB
Markdown
33 lines
1.3 KiB
Markdown
# platform/externaldns
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**ExternalDNS** — automatic public DNS records for `public` services (Cloudflare).
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- **Spec:** [docs/09 — DNS & Ingress](../../../home-network-k3s/docs/09-dns-and-ingress.md)
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(ExternalDNS is named in [docs/01](../../../home-network-k3s/docs/01-architecture-overview.md); no
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dedicated ADR)
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- **Serves:** R-DNS-01/02/03
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- **Owner:** WS-NET (token from WS-SEC)
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## What this stub is
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Flux `HelmRelease` watching Gateway/HTTPRoute + Service resources, publishing
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`<service>.home.keithjackson.dev` records in Cloudflare from declared intent (no manual record
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editing, R-DNS-02).
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## Split-horizon note (docs/09)
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A wildcard `*.keithjackson.dev` matches only one label deep, so `<svc>.home.keithjackson.dev` needs
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its own record. **`internal` services need NO public record** — PiHole resolves them to the internal
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Gateway VIP (split-horizon). ExternalDNS manages **`public`** services' records only.
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## Secrets
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Cloudflare API token referenced **by name** (`cloudflare-api-token`, shared with cert-manager),
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**SOPS-encrypted** (WS-SEC, OQ-4).
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## TODO (later phases)
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- **Phase 2 (WS-NET):** confirm `gateway-httproute` source; prove an auto record for a test route
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(R-DNS-02, Phase-2 exit gate).
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- **Phase 6 (WS-APPS):** PiHole provides the internal split-horizon answers as it onboards.
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