Document how cloud scanner provides estimations for Block storage (EBS) - Githubissues

Boavizta / cloud-scanner

📡 Get Boavizta impact data for your aws cloud account usage.

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Document how cloud scanner provides estimations for Block storage (EBS) #532

Closed demeringo closed 3 months ago

demeringo commented 3 months ago

Bug description

Cloud scanner can provide estimations about impacts of Block Storage but this is not clearly explained in the doc.

In particular:

supported volume types:
- St1 and sc1 => approximated as HDD
- gp2 and gp3 => approximated as SSD
explicit that we return only manufacture impact (no data for the use phase in API)
explicit if we return all volumes (attached or not to an instance)

To Reproduce

Expected behavior

Add a chapter in the documentation to explain how EBS impacts are estimated depending on the type of storage.

JSON OUTPUT

Additional context

Storage types: https://github.com/Boavizta/cloud-scanner/blob/7f27a7c92e94f16fa8e5368f5ea9c4c8993e9bb7/cloud-scanner-cli/src/model.rs#L114
How different storage types are approximated: https://github.com/Boavizta/cloud-scanner/blob/7f27a7c92e94f16fa8e5368f5ea9c4c8993e9bb7/cloud-scanner-cli/src/boavizta_api_v1.rs#L94

demeringo commented 3 months ago

See also the exchanges in Boavizta Public chat: https://chat.boavizta.org/public-boavizta/pl/1h9hnk3h638axqffcqeyjf69dw

demeringo commented 3 months ago

In Cloud Scanner, today EBS volumes are (very roughly!) approximated by either SSD or HDD (from the Boavizta API) depending on the AWS storage type.

Basically,

EBS volumes of type "st1" or "sc1" are approximated as HDD.
EBS volumes of types gp2 and gp3 are approximated as SSD.