Publish an npm package with a Sigstore provenance attestation from CI

domain: npm-provenance · 7 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Use an npm CLI version 9.5.0 or newer (run npm --version to check).
  2. Set a public repository field in package.json that matches the repository you build from, matched case-sensitively.
  3. Configure the CI workflow on a cloud-hosted runner. For GitHub Actions set runs-on to a hosted image and grant the id-token write permission on the job.
  4. Install dependencies and publish with the provenance flag: npm publish --provenance (add the access public flag for a first-time public publish).
  5. Provide the registry auth token as an environment variable in the workflow so the step can authenticate.
  6. Verify the attestation afterwards with npm audit signatures and look for verified attestations in the output.
  7. Official docs: https://docs.npmjs.com/generating-provenance-statements

Known gotchas

Related routes

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