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computer-playbook/roles/sys-svc-dns/README.md
Kevin Veen-Birkenbach a552ea175d feat(dns): add sys-svc-dns role and extend parent DNS handling 
Introduce sys-svc-dns to bootstrap Cloudflare DNS prerequisites. Validates CLOUDFLARE_API_TOKEN, (optionally) manages CAA for base SLDs, and delegates parent record creation to sys-dns-parent-hosts. Wired into sys-stk-front-pure.

sys-dns-parent-hosts: new parent_dns filter builds A/AAAA for each parent host and wildcard children (*.parent). Supports dict/list inputs for CURRENT_PLAY_DOMAINS, optional IPv6, proxied flag, and optional *.apex. Exposes a single parent_build_records entry point.

Let’s Encrypt role cleanup: remove DNS/C AA management from sys-svc-letsencrypt; it now focuses on webroot challenge config and renew timer. Fixed path joins and run_once guards.

Tests: update unit tests to allow wildcard outputs and dict-based CURRENT_PLAY_DOMAINS. Add generate_base_sld_domains filter. Documentation updates for both roles.

Conversation: https://chatgpt.com/share/68c342f7-d20c-800f-b61f-cefeebcf1cd8
2025-09-11 23:47:27 +02:00

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sys-svc-dns

Bootstrap and maintain DNS prerequisites for your web stack on Cloudflare.

This role validates credentials and (by default) ensures:

  • Parent host A/AAAA records (incl. the apex SLD.TLD) via sys-dns-parent-hosts
  • (Optional) CAA records for Let’s Encrypt (kept as a commented block you can re-enable)

Runs once per play and is safe to include in stacks that roll out many domains.

What it does

  1. Validate CLOUDFLARE_API_TOKEN is present (early fail if missing).
  2. Ensure parent DNS exists (apex + “parent” FQDNs derived from children):
    • Delegates to sys-dns-parent-hosts
    • Creates A (and AAAA if enabled upstream) on the Cloudflare zone, optionally proxied.
  3. (Optional) CAA records for all base SLDs (commented in the tasks; enable if you want CAA managed here).

Parent hosts example:
c.wiki.example.com → parent wiki.example.com (plus example.com apex)