Berwn
4c7c74836d
vmalert on control evaluates rules (declared in git) against VictoriaMetrics and remote-writes alert state back, so firing alerts show as the ALERTS series in Grafana. Covers SOA divergence between ns1/ns2, secondary zone expiry, scrape target down, and root disk full. No notifier yet (notifier.blackhole). Also adds TODO.md roadmap.
41 lines
1.5 KiB
Markdown
41 lines
1.5 KiB
Markdown
# Infra roadmap
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Prioritized backlog for the cnx-network clan. See `docs/` for how the current
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pieces work.
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## 1. Alerting (done — pending deploy)
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Rules evaluated by vmalert against VictoriaMetrics on control, declared in
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`modules/monitoring/alerts.nix`:
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- [x] SOA serial divergence between ns1 and ns2 (secondary out of sync)
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- [x] Zone-expiry countdown on the secondary approaching zero (transfers failing)
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- [x] Any scrape target down (`up == 0`)
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- [x] Root filesystem nearly full
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Delivery stays minimal for now (`notifier.blackhole`): vmalert remote-writes
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alert state back to VM, so firing alerts show up as the `ALERTS` series in
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Grafana. Wiring a real notifier (Matrix) is a later step — drop `blackhole` and
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set `settings."notifier.url"` to an Alertmanager.
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## 2. Backups of critical state
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- [ ] DNSSEC key material on ns1 (KSK/ZSK in Knot's KASP store) — losing it forces
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an emergency DS rollover at the registrar
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- [ ] VictoriaMetrics TSDB on control (optional, retention is 180d)
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## 3. Blackbox DNS probing
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- [ ] `blackbox_exporter` on control doing real DNS + DNSSEC-validation queries
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against ns1/ns2 — catches outside-in resolution failures the Knot stats miss
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## 4. Third secondary off Hetzner (resilience)
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- [ ] A secondary nameserver on a different provider/network so a single-provider
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outage doesn't take all authoritative DNS down (architectural — new machine)
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## 5. Centralized logs
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- [ ] VictoriaLogs on control to grep journald across all three hosts, pairing
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with the existing VictoriaMetrics setup
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