Fix manifest list creation for multi-arch Docker images

- Remove existing manifests before creating new ones
- Add architecture annotations for proper platform detection
- Ensures Docker pulls correct architecture automatically
- Matches fix applied to generic-docker-images

.gitea/workflows/buildtestpublish.yaml

@@ -58,14 +58,24 @@ jobs:
       - name: Create and push manifest list
         run: |
           # Only create manifest on main branch
-          if [ "$GITHUB_REF" = "refs/heads/main" ]; then            
-            # Create the manifest list using the architecture-specific digests
+          if [ "$GITHUB_REF" = "refs/heads/main" ]; then
+            # Remove any existing manifest to ensure we create a fresh one
+            docker manifest rm gitea.jde.nz/public/simple-object-server:latest 2>/dev/null || true
+
+            # Create the manifest list using the architecture-specific images
             docker manifest create gitea.jde.nz/public/simple-object-server:latest \
               --amend gitea.jde.nz/public/simple-object-server:latest-x86_64 \
               --amend gitea.jde.nz/public/simple-object-server:latest-aarch64
-            
+
+            # Annotate the manifests with the correct architecture
+            docker manifest annotate gitea.jde.nz/public/simple-object-server:latest \
+              gitea.jde.nz/public/simple-object-server:latest-x86_64 --arch amd64
+
+            docker manifest annotate gitea.jde.nz/public/simple-object-server:latest \
+              gitea.jde.nz/public/simple-object-server:latest-aarch64 --arch arm64
+
             # Push the manifest list
             docker manifest push gitea.jde.nz/public/simple-object-server:latest
-            
+
             echo "Manifest list created and pushed successfully"
           fi