Add verification step for single-platform images

Author: frenzymadness

.github/workflows/build-and-push.yml

@@ -42,11 +42,32 @@ jobs:
           context: .
           platforms: linux/${{ matrix.arch }}
           load: true
-          provenance: false
-          sbom: false
           tags: |
             fedorapython/fedora-python-tox:${{ matrix.arch }}
             fedorapython/fedora-python-tox:${{ matrix.arch }}-f${{ env.FEDORA_VERSION }}
+      - name: Verify single-platform image
+        run: |
+          # Inspect the local image
+          image_info=$(docker image inspect fedorapython/fedora-python-tox:${{ matrix.arch }})
+
+          # Check that we got exactly one image (not a manifest list)
+          image_count=$(echo "$image_info" | jq '. | length')
+          if [ "$image_count" != "1" ]; then
+            echo "ERROR: Expected 1 image, found $image_count"
+            exit 1
+          fi
+
+          # Get the architecture
+          arch=$(echo "$image_info" | jq -r '.[0].Architecture')
+          os=$(echo "$image_info" | jq -r '.[0].Os')
+
+          echo "✓ Verified: Image is single-platform ($os/$arch)"
+
+          # Verify it matches the expected architecture
+          if [ "$arch" != "${{ matrix.arch }}" ]; then
+            echo "ERROR: Architecture mismatch! Expected ${{ matrix.arch }}, got $arch"
+            exit 1
+          fi
       - name: Test local project
         env:
           TOXENV: ${{ matrix.toxenv }}