Implement context-aware structured logging throughout the codebase using
chainguard-dev/clog. This provides better observability with configurable
log levels and structured output.
- Add -log-level flag to control verbosity (debug, info, warn, error)
- Replace all log.Println/Printf calls with structured clog logging
- Thread context through NewProbe, NewProcessor, and NewFileReporter
- Add detailed debug logging for eBPF tracepoint attachment
- Add debug logging for file operations in reporter
- Change "new file" messages to debug level to reduce noise
- Update all tests to pass context.Background()
Default log level is "info" which provides operational visibility without
excessive verbosity. Debug level shows detailed event processing.
Signed-off-by: Jason Hall <jason@chainguard.dev>
- Add pkg/metrics package with snoop-specific metrics:
- Event counters (received, processed, excluded, duplicate)
- Unique files gauge
- Report write counters
- Expose /metrics endpoint on port 9090 (configurable via -metrics-addr flag)
- Include process and Go runtime metrics via default collectors
- Add unit tests for metrics package
Signed-off-by: Jason Hall <jason@chainguard.dev>
