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Notes on Kubernetes cost

How we allocate, rightsize and clean up, written by the engineers who build KubeOn. One email a month, no more.

October 6, 20268 min read

Kubernetes cost allocation that reconciles to the bill

Allocations built from list prices never match the invoice. Here is how to split node cost from billed, net amortized cost, and what to do with the cost that belongs to nobody.

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September 29, 20266 min read

Rightsizing requests with p95, headroom and a floor

Averages break the busiest hour, and maximums waste money every other hour. A practical rule for sizing container requests that engineers will accept.

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September 21, 20265 min read

Finding orphaned volumes without deleting the wrong one

Persistent volumes outlive the workloads that created them. How to find the ones still billing, prove they are unused, and remove them with a way back.

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September 14, 20265 min read

Chargeback that survives a reorganization

Teams change names, merge and move namespaces. If ownership is not effective-dated, last quarter's chargeback changes with them.

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