43 lines
1.9 KiB
Markdown
43 lines
1.9 KiB
Markdown
# Buildx SBOM Demo Workflow
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This sample GitHub Actions workflow shows how to run the StellaOps BuildX generator alongside a container build.
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## What it does
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1. Publishes the `StellaOps.Scanner.Sbomer.BuildXPlugin` with the manifest copied beside the binaries.
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2. Calls the plug-in `handshake` command to verify the local CAS directory.
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3. Builds a tiny Alpine-based image via `docker buildx`.
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4. Generates a CycloneDX SBOM from the built image with `docker sbom`.
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5. Emits a descriptor + provenance placeholder referencing the freshly generated SBOM with the `descriptor` command.
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6. Sends the placeholder to a mock Attestor endpoint and uploads the descriptor, SBOM, and captured request as artefacts. (Swap the mock step with your real Attestor URL + `STELLAOPS_ATTESTOR_TOKEN` secret when ready.)
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## Files
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- `github-actions-buildx-demo.yml` – workflow definition (`workflow_dispatch` + `demo/buildx` branch trigger).
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- `Dockerfile` – minimal demo image.
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- `github-actions-buildx-demo.yml` now captures a real SBOM via `docker sbom`.
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## Running locally
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```bash
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dotnet publish src/StellaOps.Scanner.Sbomer.BuildXPlugin/StellaOps.Scanner.Sbomer.BuildXPlugin.csproj -c Release -o out/buildx
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dotnet out/buildx/StellaOps.Scanner.Sbomer.BuildXPlugin.dll handshake \
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--manifest out/buildx \
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--cas out/cas
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docker buildx build --load -t stellaops/buildx-demo:ci samples/ci/buildx-demo
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DIGEST=$(docker image inspect stellaops/buildx-demo:ci --format '{{index .RepoDigests 0}}')
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docker sbom stellaops/buildx-demo:ci --format cyclonedx-json > out/buildx-sbom.cdx.json
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dotnet out/buildx/StellaOps.Scanner.Sbomer.BuildXPlugin.dll descriptor \
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--manifest out/buildx \
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--image "$DIGEST" \
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--sbom out/buildx-sbom.cdx.json \
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--sbom-name buildx-sbom.cdx.json \
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> out/buildx-descriptor.json
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```
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The descriptor JSON contains deterministic annotations and provenance placeholders ready for the Attestor.
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