Monitor Your Cloud Costs Using Open Source Tooling
summary
OpenCost is an Apache‑licensed open source cost model that uses Prometheus and node exporter plus kube‑state‑metrics and cAdvisor to attribute cloud bills to containers by multiplying marginal CPU/memory prices by allocation (the greater of request or usage). It queries cloud pricing hourly and K8s metrics every minute, exposes a JSON API and a kubectl cost plugin that prints tables and monthly estimates, and often reveals idle capacity around 80% that drives large, recoverable waste.
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chapters (6)
- 0:00Start
- 8:03Measuring Efficiency
- 11:20The Kubernetes Api
- 12:16Installing Open Cost
- 20:28The Allocation Summary
- 25:44Querying Open Costs for a Label App
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