Music Matched to Different Ways to Scale in K8s, What Could Go Wrong?

on YouTube ↗21m

" summary

Explains how Kubernetes scaling actually behaves: cluster autoscaler (1,000 nodes × 30 pods test) auto-adds and removes nodes; HPA on requests-per-second with threshold 10 uses custom metrics to add replicas; ACI/virtual nodes spillover to virtual couplet runs containers without VMs so a cluster can scale pods into Azure Container Instances instantly. Notes VPA conflicts with HPA, recommends admission controllers to inject node affinities, and demos scaling to a dozen+ ACI pods from a small node pool.

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" chapters (7)

1. 0:00Start
2. 0:41Cluster autoscaler
3. 2:26Vertical pod autoscaler
4. 4:37Horizontal pod autoscaler
5. 7:21Virtual node architecture
6. 11:33Use anti-affinity or affinities to schedule to specific kinds of nodes
7. 12:47Use tolerations & admission controllers to be

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