Amazon CloudWatch es el servicio de monitorización y observabilidad de AWS — recopila métricas, registros y eventos de recursos y aplicaciones de AWS, con alarmas y paneles de control. Es esencial para entender la salud del sistema, diagnosticar problemas y responder a incidencias.
Qué proporciona CloudWatch
METRICS → numerical data over time (CPU, memory, request count, latency, etc.)
→ AWS services publish metrics automatically; you can publish CUSTOM metrics too
LOGS → collect, store, and search application/system logs (CloudWatch Logs)
ALARMS → trigger actions when a metric crosses a threshold (alert, auto-scale, etc.)
DASHBOARDS → visualize metrics/logs in charts
EVENTS (EventBridge) → react to changes/events in your AWS environment
