Symon is a dedicated system metrics exporter for OpenTelemetry, purpose-built
for headless operation in server environments.
Core Features:
- Lightweight daemon with minimal resource footprint
- Comprehensive system metrics (CPU, memory, network, disk, processes, temp)
- Smart process filtering with regex pattern support
- External config file inclusion for server-specific process lists
- Native OTLP export via gRPC
Components:
- src/main.rs: Daemon loop with graceful shutdown
- src/config.rs: Configuration with process filtering and includes
- src/collector.rs: System metrics collection using sysinfo
- src/exporter.rs: OpenTelemetry OTLP exporter
Configuration:
- Supports inline and external process filter configs
- Whitelist/blacklist modes with regex patterns
- Per-server customization via include files
- Full OTLP configuration (endpoint, intervals, resource attributes)
Docker Compose Stack:
- OTEL Collector, Prometheus, Grafana
- Pre-configured dashboard with system metrics
- Ready-to-use testing environment
Use Cases:
- Production server monitoring
- Container/K8s sidecar metrics
- IoT/edge device monitoring
- Headless systems where TUI is impractical
This project was born from an OTEL export feature for bottom, but
separated as it better serves as a dedicated metrics daemon.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
