# influxdb

Time-series database for telemetry. Central at cloud, local at each edge.

- **Network**: `data` only (no internet egress)
- **Reached by**: grafana, node-red (they bridge `app` + `data`)
- **Volumes**: `influxdb-data` (TSM files), `influxdb-config` (config + auth)
- **TODO**: retention/downsampling policy, backup strategy, scrape from cloud central Influx for plant-summary roll-ups