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AC Infinity metrics → Grafana plan

Goal: expose tent ambient temperature and fan speeds (inlet indoor/outdoor, outlet, internal) on metrics.bstein.dev overview. Keep the footprint minimal; avoid full Home Assistant if possible.

Option A (slim exporter; recommended)

  • Use the community AC Infinity Python client (from the Home Assistant custom component) wrapped in a tiny Prometheus exporter.
  • Flow:
    1. Deploy a Deployment in monitoring (e.g., acinfinity-exporter) that:
      • Reads AC Infinity cloud creds from a Secret (populated via Vault).
      • Polls the AC Infinity cloud API on an interval (e.g., 30–60s) using the client to fetch current sensor state.
      • Exposes /metrics with gauges: acinfinity_temp_c, acinfinity_humidity_percent, acinfinity_fan_speed_percent{fan="inlet_indoor|inlet_outdoor|outlet|internal"}, acinfinity_mode, acinfinity_alarm, etc.
    2. Add a Service + ServiceMonitor to scrape the exporter. Metric relabel to friendly names if needed.
    3. Update scripts/dashboards_render_atlas.py to add:
      • Ambient temp gauge (°C/°F) on Overview.
      • Fan speed gauges (3–4 panels) for inlet/outlet/internal.
    4. Regenerate dashboards (python3 scripts/dashboards_render_atlas.py --build), commit, push, reconcile monitoring.
  • Pros: minimal footprint, no HA. Cons: need to vendor the client library and keep it in sync if AC Infinity changes their API.

Option B (minimal Home Assistant)

  • Run a stripped-down Home Assistant in monitoring with only the AC Infinity custom integration and Prometheus exporter enabled.
  • Flow:
    1. HA Deployment + PVC or emptyDir for config; Secret for AC Infinity creds; HA API password in Secret.
    2. Prometheus scrapes http://ha-acinfinity:8123/api/prometheus?api_password=... via ServiceMonitor.
    3. Same dashboard steps as above after metric relabeling to acinfinity_*.
  • Pros: reuse maintained HA integration. Cons: heavier than exporter, HA maintenance overhead.

Secrets and ops

  • Store AC Infinity username/password in Vault; template into a Secret consumed by the exporter/HA.
  • Network: allow outbound HTTPS to AC Infinity cloud from the Pod.
  • Interval: 30–60s polling is usually enough; avoid hammering the API.

Implementation sketch (Option A)

  • New image monitoring/acinfinity-exporter (Python + prometheus_client + AC Infinity client).
  • Deployment (namespace monitoring): env AC_INFINITY_USER/PASS, POLL_INTERVAL, LISTEN_ADDR.
  • Service: port: 9100 (or similar).
  • ServiceMonitor: scrape /metrics every 30–60s, metricRelabel to normalize names/labels.
  • Dashboard panels: add to Overview top/mid rows; regenerate JSONs; push; reconcile monitoring.