[WIP] Automatically sign containers #8
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Spack buildcache build | |
| on: | |
| push: | |
| branches: | |
| - main | |
| pull_request: | |
| env: | |
| SPACK_COLOR: always | |
| SPACK_BACKTRACE: please | |
| REGISTRY: ghcr.io | |
| IMAGE_NAME: ukri-excalibur/github-actions-buildcache | |
| jobs: | |
| rebuild: | |
| timeout-minutes: 180 | |
| runs-on: ubuntu-22.04 | |
| permissions: | |
| packages: write | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| - name: Install Spack | |
| run: | | |
| git clone --depth=1 --branch=oci/dump-oci-digest-upon-upload https://github.com/haampie/spack.git | |
| echo "${PWD}/spack/bin/" >> "${GITHUB_PATH}" | |
| - name: Spack version | |
| run: spack debug report | |
| - name: Set authentication method for mirror | |
| if: ${{ github.event_name == 'push' }} | |
| run: | | |
| spack -e . mirror set --oci-username ${{ github.actor }} --oci-password "${{ secrets.GITHUB_TOKEN }}" excalibur-buildcache | |
| - name: Concretize | |
| run: spack -e . concretize | |
| - name: Install | |
| timeout-minutes: 150 | |
| run: | | |
| spack -e . env depfile -o Makefile | |
| make -Orecurse -j $(($(nproc) + 1)) SPACK_INSTALL_FLAGS=--no-check-signature | |
| - name: Push packages and update index | |
| timeout-minutes: 10 | |
| run: | | |
| spack -e . buildcache push --force -j $(($(nproc) + 1)) --oci-output-digests digests.txt --unsigned --update-index excalibur-buildcache | |
| if: always() | |
| # Install the cosign tool except on PR | |
| # https://github.com/sigstore/cosign-installer | |
| - name: Install cosign | |
| if: github.event_name != 'pull_request' | |
| uses: sigstore/cosign-installer@v3 | |
| with: | |
| cosign-release: 'v1.13.1' | |
| # Login against a Docker registry except on PR | |
| # https://github.com/docker/login-action | |
| - name: Log into registry ${{ env.REGISTRY }} | |
| if: github.event_name != 'pull_request' | |
| uses: docker/login-action@v2 | |
| with: | |
| registry: ${{ env.REGISTRY }} | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.REGISTRY_TOKEN }} | |
| # - name: Setup tmate session | |
| # uses: mxschmitt/action-tmate@v3 | |
| # with: | |
| # limit-access-to-actor: true | |
| - name: Write signing key to disk (only needed for `cosign sign --key`) | |
| run: echo "${{ secrets.SIGNING_SECRET }}" > cosign.key | |
| # Sign the resulting Docker image digest except on PRs. | |
| # This will only write to the public Rekor transparency log when the Docker | |
| # repository is public to avoid leaking data. If you would like to publish | |
| # transparency data even for private images, pass --force to cosign below. | |
| # https://github.com/sigstore/cosign | |
| - name: Sign the published images | |
| if: ${{ github.event_name != 'pull_request' }} | |
| env: | |
| COSIGN_EXPERIMENTAL: "true" | |
| COSIGN_PASSWORD: "" | |
| # This step uses the identity token to provision an ephemeral certificate | |
| # against the sigstore community Fulcio instance. | |
| run: | | |
| for image in $(cat digests.txt); do | |
| echo "Signing ${image}...." | |
| cosign sign --key cosign.key "${image}" | |
| done |