upload the component SBOMs

Author: yoshuawuyts

.github/workflows/publish.yml

@@ -70,13 +70,18 @@ jobs:
           cargo binstall cargo-component --force --version ${{ env.CARGO_COMPONENT_VERSION }}
           cargo binstall wkg --force 
           cargo binstall cargo-auditable cargo-audit
+          cargo binstall auditable2cdx
 
       - name: Build the component
         run: cargo auditable component build --release
 
       - name: Normalize COMPONENT_NAME and Append .wasm
         run: echo "COMPONENT_NAME_UNDERSCORED=${COMPONENT_NAME//-/_}.wasm" >> $GITHUB_ENV
 
+      - name: Extract the SBOM from the component
+        if: github.event_name != 'workflow_dispatch'
+        run: auditable2cdx target/wasm32-wasip1/release/${{ env.COMPONENT_NAME_UNDERSCORED }} >> ${ env.COMPONENT_NAME }.spdx.json
+
       - name: Publish `:<version>` to GitHub Container Registry
         if: github.event_name != 'workflow_dispatch'
         id: publish_versioned
@@ -94,6 +99,10 @@ jobs:
         if: github.event_name != 'workflow_dispatch'
         run: cosign sign --yes ghcr.io/${{ env.IMAGE_NAME }}/${{ env.COMPONENT_NAME }}@${{ steps.publish_versioned.outputs.digest }}
 
+      - name: Sign the SBOM for the versioned Wasm component
+        if: github.event_name != 'workflow_dispatch'
+        run: cosign attest --type spdxjson --predicate ${ env.COMPONENT_NAME }.spdx.json ${{ steps.publish_versioned.outputs.digest }}
+
       - name: Publish `:latest` release to GitHub Container Registry
         if: github.event_name != 'workflow_dispatch'
         id: publish_latest
@@ -111,3 +120,6 @@ jobs:
         if: github.event_name != 'workflow_dispatch'
         run: cosign sign --yes ghcr.io/${{ env.IMAGE_NAME }}/${{ env.COMPONENT_NAME }}@${{ steps.publish_latest.outputs.digest }}
 
+      - name: Sign the SBOM for the latest Wasm component
+        if: github.event_name != 'workflow_dispatch'
+        run: cosign attest --type spdxjson --predicate ${ env.COMPONENT_NAME }.spdx.json ${{ steps.publish_latest.outputs.digest }}