Observability

Grafana plus InfluxDB on $5.50/mo, against the vendor 'machine health platform'

Self-hosted observability on the same Hetzner VM that runs the Sparkplug B broker. What the open stack delivers, what it does not, and the honest read on the $1,200-per-asset-per-year quotes.

Issue 04 put OPC UA and Sparkplug B on the carrier and pointed both at a HiveMQ broker on a $5.50/mo Hetzner VM. Issue 05 puts the dashboards, the historian, and the alerting on top of it. Grafana plus InfluxDB plus Telegraf, all self-hosted on the same VM, fed by the Sparkplug subscriber. The result is a working machine-health dashboard with anomaly alerts, vibration trend, and 90-day retention for under six dollars a month. The comparison: a representative vendor 'machine health' SaaS quote at $1,200 per asset per year. What the open stack delivers that the SaaS does, what it does not, and which of the two should sit on a real plant floor.