~/talk

Another Cluster Bites the Dust... and That’s Just Fine!

Talkat Open Source Summit Europe 2025 · on Wednesday, 2025-08-27· at 14:10· G107 (Level 1)· [kubernetes]
slides:none on file

Proposes ephemeral infra that provisions per PR using Crossplane XRD/compositions as the control plane and kube‑green sleepinfo patching to scale workloads to zero, then shrink node pools to one. Example builds an EKS cluster (3 t3.small nodes) in ~20–50 minutes; nightly/weekend scaling cuts compute cost about 50% (example $13.82 → ≈$7/week) and halves carbon from ~1 kg to ~0.5 kg/week. Management cluster runs Crossplane; runtime cluster runs kube‑green; reclaiming deletes the whole stack.

AI-written summary · about

  1. 0:00Infrastructure shutdown strategies
  2. 2:08Resource usage patterns
  3. 3:33Cloud challenges and costs
  4. 7:56Environmental impact of idle resources
  5. 11:14Ephemeral environments for efficiency
  6. 14:05Crossplane automation framework
  7. 15:28Crossplane resource management
  8. 18:20Composite resources in Crossplane
  9. 20:30Self-service infrastructure claims
  10. 21:13KubeGreen optimization
  11. 22:58Ephemeral environment workflow
  12. 26:18Multi-layer optimization with KubeGreen
  13. 29:57Cost and carbon comparison
  14. 33:51Monthly savings projection
  15. 36:30Hands-on workshop
  16. 37:37Tracking carbon intensity
  17. 41:36Q&A
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