[Feature] Add Telemetry dashboard #19
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Overview
The enterprise edition of the PowerSync self hosting Docker image supports custom telemetry integrations via configurable additional OTLP endpoints.
A telemetry integration has been added to the NodeJS demo.
This adds a OTLP collector which exports metrics to Prometheus. Prometheus is used as a data source in Grafana to visualize telemetry.
The Grafana dashboard should be accessible at
http://localhost:3121after following the instructions in the NodeJS readme file. TheTelemetrydashboard contains various telemetry in panels.Caveats
The
opentelemetry,prometheusandgrafanaconfig files reference each other's service config and ports quite often. This makes it tricky to configure with one source of trueth environment variable file.Todos
The metrics panels in the dashboard currently use very simple queries which only show the instantaneous values of meters and counters. Better queries with aggregations and other improved logic should still be implemented.