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fan-control: presence-aware IPMI fan curve for the R730 PVE host

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The iDRAC stock curve runs the CPU at ~72°C on the 7080 RPM floor even
under load (optimises for quiet, not cool). Add a bash daemon + systemd
unit that drives the chassis fans from CPU temp on two curves, picked by
garage occupancy (the server is in the garage): COOL when empty
(measured ~58-65°C under load), QUIET near the silent floor when the
ha-sofia garage door shows someone is there (open, or <15min since last
activity).

Manual fan mode is backstopped: bash EXIT trap + systemd ExecStopPost
hand fans back to Dell auto on stop/crash; CPU>=83°C or repeated IPMI
failures do the same. Pushgateway metrics (job=fan_control). 36 unit
tests cover the pure curve/hysteresis/presence/parse logic; DRY_RUN +
RUN_ONCE for integration checks. Deployed and verified on 192.168.1.127
(CPU 70->58°C in cool mode, hysteresis stepping confirmed).

Design:  docs/plans/2026-06-04-pve-fan-control-design.md
Runbook: docs/runbooks/fan-control.md

[ci skip]

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Viktor Barzin 2026-06-04 21:38:34 +00:00
parent c6f27fa172
commit 90ad6b9125
60 changed files with 640 additions and 9563 deletions
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2
.claude/reference/service-catalog.md
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@ -46,7 +46,7 @@
| nextcloud | File sync/share | nextcloud |
| calibre | E-book management (may be merged into ebooks stack) | calibre |
| onlyoffice | Document editing | onlyoffice |
| f1-stream | F1 streaming (uses chrome-service for hmembeds verifier) | f1-stream |
| f1-stream | F1 streaming (uses chrome-service for hmembeds verifier); source in own repo `viktor/f1-stream` (extracted 2026-06-04), Woodpecker-native build->deploy | f1-stream |
| chrome-service | Headed Chromium WebSocket pool (`ws://chrome-service.chrome-service.svc:3000/<token>`) for sibling services driving anti-bot embeds | chrome-service |
| rybbit | Analytics | rybbit |
| isponsorblocktv | SponsorBlock for TV | isponsorblocktv |