Prometheus, Grafana, Azure Monitor — metrics collection, dashboards, and SLOs for production systems.
Five passes over the same idea, each from a different angle. Do them in order, or jump to whichever you need.
Monitoring provides visibility into system health. Key concepts: metrics (counters, gauges, histograms), Prometheus for collection, Grafana for visualization, and Azure Monitor for cloud-native monitoring. Define SLIs, SLOs, and error budgets. The four golden signals: latency, traffic, errors, saturation.
