# 🔭 Observability Stack

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## Components

- Grafana
- Prometheus
- Loki
- Tempo
- Grafana Alloy
- kube-state-metrics
- node-exporter

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## Capabilities

- Logs ↔ traces ↔ metrics correlation
- OTLP-native instrumentation
- Centralized dashboards
- Alerting-ready

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## Instrumentation Rules

All apps must:
- expose `/metrics`
- emit structured JSON logs
- export OTLP traces