use buildx

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

@@ -39,19 +39,20 @@ jobs:
           VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
           echo "VERSION=$VERSION" >> $GITHUB_ENV
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+      - name: Create Docker Buildx builder
+        run: |
+          docker buildx create --use --name mybuilder
+          docker buildx inspect --bootstrap
 
       - name: Log in to Docker Hub
         uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Build and tag Docker image
-        run: |
-          docker build -t ${{ secrets.DOCKER_USERNAME }}/cypher-tools:${{ env.VERSION }} .
-
-      - name: Push Docker image to Docker Hub
+      - name: Build and push multi-platform Docker image
         run: |
-          docker push ${{ secrets.DOCKER_USERNAME }}/cypher-tools:${{ env.VERSION }}
+          docker buildx build \
+            --platform linux/amd64,linux/arm64 \
+            --tag ${{ secrets.DOCKER_USERNAME }}/my-spring-app:${{ env.VERSION }} \
+            --push .