build ubi8 image

.github/workflows/build.yml

@@ -37,12 +37,28 @@ jobs:
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       -
-        name: Build
+        name: Docker Build
         uses: docker/build-push-action@v5
         with:
           context: .
           file: ./Dockerfile
           platforms: linux/amd64
+          tags: lib3mf_ubi8:latest       
+          load: true   
+      - 
+        name: Docker Extract                    
+        uses: shrink/[email protected]
+        id: extract
+        with: 
+          image: lib3mf_ubi8:latest
+          path: /out.tar.gz
+      -
+        name: Upload Artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: lib3mf.tar.gz
+          path: ${{ github.workspace }}/out.tar.gz        
+
   build-macos:
     runs-on: macos-latest
     steps: