Merge pull request #17 from sensebox/feat/github-action

add github action

.github/workflows/docker-build.yml

@@ -0,0 +1,33 @@
+name: Build and Publish Docker Image to GHCR
+
+on:
+  push:
+    tags:
+      - "v*" # Triggers on version tags like v1.0.0
+  workflow_dispatch: # Allow manual trigger
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/react-ardublockly-backend:latest
+            ghcr.io/${{ github.repository_owner }}/react-ardublockly-backend:${{ github.ref_name }}