Change to docker build

Signed-off-by: Byron Ruth <[email protected]>

.github/workflows/preview.yaml

@@ -72,28 +72,19 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_TOKEN }}
 
-        # Setting up Docker Buildx with docker-container driver is required
-        # at the moment to be able to use a subdirectory with Git context.
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Setup builder
-        run: |
-          docker buildx create --name builder --bootstrap --use
-
       - name: windowsservercore-1809
         run: |
-          docker buildx build `
-            --platform windows/amd64 `
+          docker build `
             --tag "${{ env.IMAGE_NAME }}:${{ github.ref_name }}-windowsservercore-1809" `
-            --push `
             ./2.10.x/windowsservercore-1809
 
+          docker push "${{ env.IMAGE_NAME }}:${{ github.ref_name }}-windowsservercore-1809"
+
       - name: nanoserver-1809
         run: |
-          docker buildx build `
+          docker build `
             --build-arg "BASE_IMAGE=${{ env.IMAGE_NAME }}:${{ github.ref_name }}-nanoserver-1809" `
-            --platform windows/amd64 `
             --tag "${{ env.IMAGE_NAME }}:${{ github.ref_name }}-windowsservercore-1809" `
-            --push `
             ./2.10.x/nanoserver-1809
+
+          docker push "${{ env.IMAGE_NAME }}:${{ github.ref_name }}-nanoserver-1809"