Module observability 

Observability Infrastructure

This module provides production-grade observability for RustKernels:

• Metrics: Prometheus-compatible metrics for kernel performance
• Tracing: Distributed tracing with OpenTelemetry support
• Logging: Structured logging with context propagation
• Alerting: Alert rules and routing

Feature Flags

• metrics: Enable Prometheus metrics export
• otlp: Enable OpenTelemetry Protocol export
• structured-logging: Enable JSON structured logging
• alerting: Enable alert rule engine

Example

use rustkernel_core::observability::{MetricsConfig, ObservabilityConfig};

let config = ObservabilityConfig::builder()
    .with_metrics(MetricsConfig::prometheus(9090))
    .with_tracing(TracingConfig::otlp("http://jaeger:4317"))
    .build();

// Initialize observability
config.init().await?;

Re-exports

pub use alerting::AlertConfig;

pub use alerting::AlertRule;

pub use alerting::AlertSeverity;

pub use alerting::AlertState;

pub use logging::LogConfig;

pub use logging::LogLevel;

pub use logging::StructuredLogger;

pub use metrics::KernelMetrics;

pub use metrics::MetricsConfig;

pub use metrics::MetricsExporter;

pub use tracing::KernelSpan;

pub use tracing::SpanContext;

pub use tracing::TracingConfig;

Modules

alerting

Alert Rules and Routing

logging

Structured Logging

metrics

Kernel Metrics

tracing

Distributed Tracing

Structs

MetricLabels

Common labels for all metrics

ObservabilityConfig

Unified observability configuration

ObservabilityConfigBuilder

Builder for observability configuration