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fix(ci): add SLSA provenance to release artifacts #243

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Merged
rhuanbarreto merged 1 commit into from
Apr 27, 2026
Merged

fix(ci): add SLSA provenance to release artifacts #243

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53 changes: 53 additions & 0 deletions .github/workflows/release-binaries.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -116,3 +116,56 @@ jobs:
$tag = "${{ github.event.release.tag_name || inputs.tag }}"
Copy-Item "${{ steps.attest-win.outputs.bundle-path }}" "${{ matrix.artifact }}.zip.sigstore.json"
gh release upload $tag "${{ matrix.artifact }}.zip" "${{ matrix.artifact }}.zip.sha256" "${{ matrix.artifact }}.zip.sigstore.json" --clobber

- name: Upload digest for SLSA provenance (Unix)
if: runner.os != 'Windows'
uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
with:
name: digest-${{ matrix.artifact }}
path: ${{ matrix.artifact }}.tar.gz.sha256

- name: Upload digest for SLSA provenance (Windows)
if: runner.os == 'Windows'
uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
with:
name: digest-${{ matrix.artifact }}
path: ${{ matrix.artifact }}.zip.sha256

combine-hashes:
name: Combine hashes for provenance
needs: build
runs-on: ubuntu-latest
timeout-minutes: 5
outputs:
digests: ${{ steps.combine.outputs.digests }}
steps:
- name: Download all digest artifacts
uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
with:
pattern: digest-*
merge-multiple: true

- name: Combine digests
id: combine
run: |
echo "=== Individual digests ==="
cat *.sha256
echo ""
DIGESTS=$(cat *.sha256 | tr -d '\r' | base64 -w0)
echo "digests=$DIGESTS" >> "$GITHUB_OUTPUT"

# SLSA provenance — generates .intoto.jsonl and uploads it to the release.
# Uses tag ref (not SHA) because slsa-verifier checks the builder identity
# against a known tag list; SHA refs would fail verification.
provenance:
name: SLSA provenance
needs: combine-hashes
permissions:
actions: read
id-token: write
contents: write
uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v2.1.0
with:
base64-subjects: "${{ needs.combine-hashes.outputs.digests }}"
upload-assets: true
upload-tag-name: ${{ github.event.release.tag_name || inputs.tag }}
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