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kevinveenbirkenbachandClaude Opus 5
c55f508e05
The cosmos generator linked a consumer to its provider only through an '<role>' in group_names reference or an explicit provides: name. A hard dependency has neither -- pinning the provider on unconditionally is exactly what removes the Jinja reference the generator was reading -- so web-svc-asset's bond to web-svc-file vanished from the diagram the moment it became binding. Match a service key against the provider's own primary key from the registry, in both directions. Services the role turns off drew a solid 1:1 edge, claiming a mandatory relationship for something that carries nothing at deploy time. They now render as a red 0..0 edge; edge merging gained a real precedence so a provider consumed through two keys stays live when only one is off. Named colour, not hex: a '#' opens an entity code in the mermaid lexer and turns the whole diagram into a parse error on GitHub. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
57 lines
2.5 KiB
Markdown
57 lines
2.5 KiB
Markdown
# sys-svc-dns
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## Description
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Bootstrap and maintain **DNS prerequisites** for your web stack on Cloudflare.
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This role validates credentials and (by default) ensures:
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- **A (and optional AAAA) records** on the **apex** (`@`) for all **base SLD domains**
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- **Wildcard A/AAAA records** (`*.parent`) for parent hosts via `sys-dns-wildcards`
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- *(Optional)* **CAA** records for Let’s Encrypt (kept as a commented block you can re-enable)
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Runs **once per play** and is safe to include in stacks that roll out many domains.
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---
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## Overview
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This role cloudflare DNS bootstrap: parent host A/AAAA (and optional CAA), runs once per play.
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## Cosmos
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The diagram places sys-svc-dns in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).
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```mermaid
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flowchart LR
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subgraph role [sys-svc-dns 💻]
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svc_svc_dns["svc-dns"]
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end
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```
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Solid `1:1` edges are fixed relationships; dashed `0..1` edges are conditional (enabled only in matching deployments); red `0..0` edges are turned off in this role. Node markers show the role's deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in `meta/main.yml`.
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## Features
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- **Automated provisioning:** Configured by Ansible without manual steps.
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## What it does
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1. **Validate the Cloudflare API token** (`API.cloudflare.api_token`) is present (early fail if missing).
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2. **Ensure apex A/AAAA exist** for every **base SLD** in `SYS_SVC_DNS_BASE_DOMAINS`:
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- Writes `@ A` → `networks.internet.ip4`
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- Writes `@ AAAA` → `networks.internet.ip6` (only if global and present)
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3. *(Optional)* **CAA records** for all base SLDs (commented in the tasks; enable if you want CAA managed here).
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4. **Ensure wildcard parent DNS exists** (`*.parent` derived from children):
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- Delegates to [`sys-dns-wildcards`](../sys-dns-wildcards/README.md)
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- Creates `A` (and `AAAA` if enabled) wildcard records on the Cloudflare zone, optionally proxied.
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> Parent hosts example:
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> `c.wiki.example.com` → **parent** `wiki.example.com` (plus `example.com` apex)
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## Credits
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Implemented by **[Kevin Veen-Birkenbach](https://www.veen.world)**.
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Part of the [Infinito.Nexus Project](https://s.infinito.nexus/code) and maintained by [Kevin Veen-Birkenbach](https://www.veen.world).
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Licensed under the [Infinito.Nexus Community License (Non-Commercial)](https://s.infinito.nexus/license).
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