Add other fields

Author: nebyri

.github/workflows/docker.yml

@@ -11,9 +11,12 @@ env:
 jobs:
     build:
         runs-on: ubuntu-latest
+        
         permissions:
           contents: read
           packages: write
+          attestations: write
+          id-token: write
 
         steps:
             - name: Checkout code
@@ -36,6 +39,14 @@ jobs:
               uses: docker/[email protected]
               with:
                 context: .
+                file: ./dockerfile
                 push: true
                 tags: ${{ steps.meta.outputs.tags }}
-                labels: ${{ steps.meta.outputs.labels }}
+                labels: ${{ steps.meta.outputs.labels }}
+
+            - name: Generate artifact attestation
+              uses: actions/attest-build-provenance@v2
+              with:
+                subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+                subject-digest: ${{ steps.push.outputs.digest }}
+                push-to-registry: true