With multi-db support in Firestore now launched, this enabled many possibilities but also requires more granular inventory management of the databases created.

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For compliance reasons and for better management of your cloud assets, it's important to assign metadata to your cloud resources.
Especially for storage services, this is important, as it allows you to track which resources contain PII, who owns them, etc.

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Attaching this kind of data is typically done using tags in Google Cloud.
If it would be possible to attach tags to individual Firestore databases, this would solve the management of databases and allow easier compliance management.

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For example, it could allow your compliance automation software (like Vanta or Drata) to extract that information directly from Google Cloud while allowing your engineers to define those labels right where they provision the database.