List all consumed and generated metrics by opencost

[debMan]

I deployed a separate Prometheus for opencost and scraped my own infrastructure with existing cAdvisor, KSM, and node-exporter, and want to drop all other metrics that are not used on opencost and have no need for them.
I tried to dig into the code, but it's not a proper approach.

The missing part which I opened an issue for is the lack of a clean and exact list of consumed and generated metrics by opencost in docs, neither on kubecost nor on opencost.

I checked the exposed metrics and queried metrics by opencost, and they showed more and different metrics than docs.

Suggestion:
Provide a clean list for generated and consumed metrics in the docs, or place it on a separate file on the repo, to keep users stack updated with it.

[mattray]

I'm going to move this over to github.com/opencost/opencost-website/ since I think it would be useful over in the Documentation.

[mattray]

Kubecost has https://docs.kubecost.com/architecture/user-metrics, which should be a good start (and might be identical).

[mattray]

Really we need to revisit https://www.opencost.io/docs/integrations/opencost-exporter#available-prometheus-metrics and clean it up authoritatively.

[debMan]

I really want to contribute, but I don't have enough Golang development knowledge to fetch relevant information from the codebase.

[debMan]

Thanks for your attention @mattray

Kubecost has https://docs.kubecost.com/architecture/user-metrics, which should be a good start (and might be identical).

This page doesn't clarify which ones are consumed, and which ones are generated. Not only on opencost, but also on other parts like KSM.

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Really we need to revisit https://www.opencost.io/docs/integrations/opencost-exporter#available-prometheus-metrics and clean it up authoritatively.

Also, there is another list of metrics here: https://www.opencost.io/docs/integrations/prometheus#available-metrics