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Interactive Explainer

Istio Observability: Metrics & Monitoring

Golden signals (latency, traffic, errors, saturation) from Envoy proxy metrics, Prometheus integration, and Grafana dashboards.

🎯Key Takeaways
Envoy auto-generates RED metrics per service
Standard labels: source/destination workload, namespace, response code
Grafana dashboards: Service Mesh Overview, Service Detail, Workload Detail

Istio Observability: Metrics & Monitoring

Golden signals (latency, traffic, errors, saturation) from Envoy proxy metrics, Prometheus integration, and Grafana dashboards.

~1 min read
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What you'll learn
  • Envoy auto-generates RED metrics per service
  • Standard labels: source/destination workload, namespace, response code
  • Grafana dashboards: Service Mesh Overview, Service Detail, Workload Detail

Istio Metrics Overview

Istio generates four types of metrics: control plane (istiod health), data plane (per-service request latency, error rate), TCP metrics, and Istio-specific proxy health metrics. Envoy exposes these on :15020/stats/prometheus for Prometheus scraping.

Key takeaways

  • Envoy auto-generates RED metrics per service
  • Standard labels: source/destination workload, namespace, response code
  • Grafana dashboards: Service Mesh Overview, Service Detail, Workload Detail

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