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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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8
.claude/CLAUDE.md
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@ -104,13 +104,15 @@ have `ignore_changes` on `…container[0].image` (KEEL_IGNORE_IMAGE) so CI
`:latest` + `imagePullPolicy: Always` (fresh pod each run) instead of a deploy
step. **Never** `set image`/`rollout restart` operator-managed StatefulSets
(memory id=740). Reference impls: `tuya_bridge/.woodpecker.yml`,
`job-hunter`. This reverses decision #12 of
`job-hunter`, `f1-stream` (viktor/f1-stream, extracted from this monorepo
2026-06-04). This reverses decision #12 of
`docs/plans/2026-05-16-auto-upgrade-apps-design.md` for owned (not upstream)
images.
**Flow (GHA-migrated apps)**: `git push → GHA build+push DockerHub (8-char SHA) → POST Woodpecker API → kubectl set image`
**Migrated to GHA** (10): Website, k8s-portal, f1-stream, claude-memory-mcp, apple-health-data, audiblez-web, plotting-book, insta2spotify, audiobook-search, council-complaints
**Migrated to GHA** (9): Website, k8s-portal, claude-memory-mcp, apple-health-data, audiblez-web, plotting-book, insta2spotify, audiobook-search, council-complaints
**Woodpecker-native owned-app build** (Forgejo registry, build->deploy in one `.woodpecker.yml`): tuya_bridge, job-hunter, f1-stream (extracted to viktor/f1-stream 2026-06-04; Woodpecker repo id 166)
**Woodpecker-only**: travel_blog (1.4GB content too large for GHA), infra pipelines (terragrunt apply, certbot, build-cli — need cluster access)
**Per-project files**:
@ -119,7 +121,7 @@ images.
- `.woodpecker/build-fallback.yml` — Old full build pipeline preserved (event: `deployment` — never auto-fires)
**Woodpecker API**: Uses **numeric repo IDs** (`/api/repos/2/pipelines`), NOT owner/name paths (those return HTML).
Repo IDs: infra=1, Website=2, finance=3, health=4, travel_blog=5, webhook-handler=6, audiblez-web=9, f1-stream=10, plotting-book=43, claude-memory-mcp=78, infra-onboarding=79, council-complaints=TBD
Repo IDs: infra=1, Website=2, finance=3, health=4, travel_blog=5, webhook-handler=6, audiblez-web=9, plotting-book=43, claude-memory-mcp=78, infra-onboarding=79, council-complaints=TBD (f1-stream's old GHA-era id 10 is defunct; it's now a Woodpecker-native build at repo id 166)
**Woodpecker YAML gotchas**:
- Commands with `${VAR}:${VAR}` must be **quoted** — unquoted `:` triggers YAML map parsing when vars are empty