3.2.3. Automating Monitoring & Alerting

The ultimate goal of monitoring is not just to see problems — it's to respond to them automatically. Think of it like a thermostat vs. a thermometer: a thermometer tells you the temperature is dropping, but a thermostat detects the drop and turns on the heat. Manual incident response doesn't scale, and the gap between detection and remediation is where outages grow from seconds to hours.

This section covers how to build self-healing systems using event-driven architectures, auto scaling, automated alerting, and health checks. Can your infrastructure fix itself at 3 AM without waking anyone up?