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Signed-off-by: Brian DeHamer <bdehamer@github.com>
55 lines
2.4 KiB
Markdown
55 lines
2.4 KiB
Markdown
# `actions/attest-build-provenance`
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Generate signed build provenance attestations for workflow artifacts. Internally
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powered by the [@actions/attest][1] package.
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Attestations bind some subject (a named artifact along with its digest) to a
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[SLSA build provenance][3] predicate using the [in-toto][2] format.
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A verifiable signature is generated for the attestation using a short-lived
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[Sigstore][4]-issued signing certificate. If the repository initiating the
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GitHub Actions workflow is public, the public-good instance of Sigstore will be
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used to generate the attestation signature. If the repository is
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private/internal, it will use the GitHub private Sigstore instance.
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Once the attestation has been created and signed, it will be uploaded to the GH
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attestations API and associated with the repository from which the workflow was
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initiated.
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Attestations can be verified using the [`attestation` command in the GitHub
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CLI][5].
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See [Using artifact attestations to establish provenance for builds][6] for more
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information on artifact attestations.
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<!-- prettier-ignore-start -->
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> [!NOTE]
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> Artifact attestations are available in public repositories for all
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> current GitHub plans. They are not available on legacy plans, such as Bronze,
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> Silver, or Gold. If you are on a GitHub Free, GitHub Pro, or GitHub Team plan,
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> artifact attestations are only available for public repositories. To use
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> artifact attestations in private or internal repositories, you must be on a
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> GitHub Enterprise Cloud plan.
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<!-- prettier-ignore-end -->
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## Usage
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**As of version 4, `actions/attest-build-provenance` is simply a wrapper on top
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of [`actions/attest`][7].**
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Existing applications may continue to use the `attest-build-provenance` action,
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but new implementations should use `actions/attest` instead. Please see the
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[`actions/attest`][7] repository for usage information.
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Documentation for previous versions of this action can be found
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[here](https://github.com/actions/attest-build-provenance/blob/v3.2.0/README.md).
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[1]: https://github.com/actions/toolkit/tree/main/packages/attest
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[2]: https://github.com/in-toto/attestation/tree/main/spec/v1
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[3]: https://slsa.dev/spec/v1.0/provenance
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[4]: https://www.sigstore.dev/
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[5]: https://cli.github.com/manual/gh_attestation_verify
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[6]:
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https://docs.github.com/en/actions/security-guides/using-artifact-attestations-to-establish-provenance-for-builds
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[7]: https://github.com/actions/attest
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