SLSA Provenance GitHub Action

Github Action implementation of SLSA Provenance Generation of level 1
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This GitHub action implements the level 1 requirements of the SLSA framework. By using this GitHub Action it is possible to easily generate the provenance file for different artifact types. Different artifact types include, but not limited to:

• Files
• Push event (Docker Hub, trigger different workflow, etc)

While there are no integrity guarantees on the produced provenance at L1, publishing artifact provenance in a common format opens up opportunities for automated analysis and auditing. Additionally, moving build definitions into source control and onto well-supported, secure build systems represents a marked improvement from the ecosystem's current state.

This is not an official GitHub Action set up and maintained by the SLSA team. This GitHub Action is built for research purposes by Philips Research. It is heavily inspired by the original Provenance Action example built by SLSA.

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SLSA is a framework intended to codify and promote secure software supply-chain practices. SLSA helps trace software artifacts (e.g. binaries) back to the build and source control systems that produced them using in-toto's Attestation metadata format.

• SLSA Framework
• Golang
• GitHub Actions

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Get started quickly by reading the information below.

Ensure you have the following installed:

• Golang
• Docker

The following IDE is recommended when working on this codebase:

• VSCode

1. Clone the repo.

   git clone [email protected]:philips-labs/slsa-provenance-action.git

2. Build the binary.

   make build

3. Execute the binary.

   ./bin/slsa-provenance help

Our Docker images are available at both GitHub Container Registry (ghcr) and Docker Hub.

Docker Hub See all available images here. Run the Docker image by doing:

docker run philipssoftware/slsa-provenance:v0.4.0

GitHub Container Registry See all available images here. Run the Docker image by doing:

docker run ghcr.io/philips-labs/slsa-provenance:v0.4.0

The Docker image includes the working binary that can be executed by using the slsa-provenance command.

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The easiest way to use this action is to add the following into your workflow file. Additional configuration might be necessary to fit your usecase.

provenance:
  name: provenance
  needs: [release]
  runs-on: ubuntu-20.04

  steps:
    - name: Generate provenance for Release
      uses: philips-labs/[email protected]
      with:
        artifact_path: release-assets
        output_path: 'build.provenance'
        tag_name: ${{ github.ref_name }}
      env:
        GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

generate-provenance:
  name: Generate build provenance
  runs-on: ubuntu-latest
  steps:
    - name: Download build artifact
      uses: actions/download-artifact@v2
      with:
        path: artifact/

    - name: Download extra materials for provenance
      uses: actions/download-artifact@v2
      with:
        name: extra-materials
        path: extra-materials/

    - name: Generate provenance
      uses: philips-labs/SLSA-Provenance-Action@8c78a6b34703824b9561a26b1ae5893beea9a332
      with:
        artifact_path: artifact/
        extra_materials: extra-materials/file1.json extra-materials/some-more.json

    - name: Upload provenance
      uses: actions/upload-artifact@v2
      with:
        path: build.provenance

An action to generate SLSA build provenance for an artifact

• Generate Command that generates the provenance.
• Help Command that prints helpful information about what commands and arguments can be used.
• Version Command that prints version information about the binary that is used.

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If you have a suggestion that would make this project better, please fork the repository and create a pull request. You can also simply open an issue with the tag "enhancement".

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

Please refer to the Contributing Guidelines for all the guidelines.

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Distributed under the MIT License. See LICENSE for more information.

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Powered by Philips SWAT Eindhoven

• Brend Smits - [email protected]
• Marco Franssen
• Jeroen Knoops
• Annie Jovitha

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This project is inspired by:

• SLSA Framework
• SLSA GitHub Action Example

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