~/talk

Prometheus from A to Z

TalkinFrenchat Devoxx France 2021 · 2021-09-29..10-01· [observability, devops-and-delivery]
slides:none on file

Shows a hands-on Prometheus setup on Kubernetes using the Prometheus Operator to deploy Prometheus, Grafana, node_exporter and Alertmanager, and exposes a simple Python app at /metrics with ServiceMonitors for auto-discovery. Demonstrates Prometheus metric types (counters, histograms with histogram_quantile), rate() behavior across resets, and cardinality pitfalls from label explosion; notes storage and performance characteristics (head stores ~2–3 hours, samples compress to ~1–2 bytes, a single server can handle on the order of 10 million series on large machines) and recommends Thanos or Cortex for long-term retention; shows scaling/recovery and alert routing via Alertmanager.

AI-written summary · about

  1. 0:00Introduction
  2. 1:03Prometheus overview
  3. 3:33History and adoption
  4. 7:07Prometheus philosophy
  5. 14:18Technical operation
  6. 23:08Basic interface
  7. 27:11Data model and time series
  8. 32:33PromQL queries and aggregation
  9. 44:54Alerts and Alertmanager
  10. 1:24:11Break
  11. 1:34:54Application instrumentation
  12. 1:51:57Monitoring best practices
  13. 2:03:24Alert management and performance
  14. 2:12:39Prometheus with Kubernetes
  15. 2:25:23High availability and scaling
  16. 2:33:56Conclusion and community
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