Database Storage

Anchore stores all metadata in a structured format in a PostgreSQL database to support API operations and searches.

Examples of data persisted in the database:

Image metadata (distro, version, layer counts, …)
Image digests to tag mapping (docker.io/nginx:latest is hash sha256:abcd at time t)
Image analysis content indexed for policy evaluation (files, packages, ..)
Feed data
- vulnerability info
- package info from upstream (gem/npm)
Accounts, users…
…

If the object store is not explicitly set to an external provider, then that data is also persisted in the database but can be migrated

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