Implement OpenTelemetry and Prometheus tracing for SQLRunner#8
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pan93412
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Dec 28, 2025
pan93412
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- feat: add Prometheus metrics
- feat: implement OpenTelemetry tracing and logging
- feat: implement tracing
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Pull request overview
This PR implements comprehensive observability for SQLRunner by adding OpenTelemetry tracing and logging support, along with Prometheus metrics via Gin middleware. The implementation includes graceful shutdown handling and configurable exporters for traces and logs.
Key changes:
- Added OpenTelemetry SDK integration with configurable exporters (console/OTLP) for both traces and logs
- Integrated Prometheus metrics via ginprom middleware exposed at
/metricsendpoint - Implemented graceful shutdown with signal handling for proper cleanup of telemetry resources
- Added distributed tracing spans to request handling and SQLite query execution paths
Reviewed changes
Copilot reviewed 6 out of 7 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| otelprovider.go | New file implementing OpenTelemetry SDK bootstrap with configurable trace and log exporters supporting console and OTLP protocols |
| main.go | Migrated from standard library HTTP to Gin framework, added OpenTelemetry tracing, Prometheus metrics, graceful shutdown, and span instrumentation for request handling |
| lib/sqlrunner.go | Added tracing spans and events to Query method for cache operations and SQLite query execution |
| lib/otel.go | New file defining tracer instance for the sqlrunner library package |
| go.mod | Added dependencies for Gin, ginprom, OpenTelemetry SDK, exporters, and instrumentation |
| go.sum | Updated checksums for all new dependencies |
| README.md | Added Observability section documenting metrics endpoint and OpenTelemetry configuration environment variables |
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Pull request overview
Copilot reviewed 6 out of 7 changed files in this pull request and generated 8 comments.
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