testing github building action@v3

.github/workflows/build-push.yml

@@ -0,0 +1,38 @@
+
+name: Build and Push to Docker Hub
+on:
+  push:
+    branches:
+      - test
+    tags:
+      - '*.*.*'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          dockerfile: ./packaging/Dockerfile
+          push: true
+          tags: |
+            helyosframework/helyos_core:${{ github.ref }}
+            helyosframework/helyos_core:${{ github.ref }}-linux-amd64
+            helyosframework/helyos_core:${{ github.ref }}-linux-arm-v7
+            helyosframework/helyos_core:${{ github.ref }}-macos-mx
+          platforms: linux/amd64,linux/arm/v7,linux/amd64