Add Docker support: Dockerfile, docker-compose, GitHub Actions

.github/workflows/docker.yml

@@ -1,4 +1,4 @@
-name: Build and Push Docker Images
+name: Build and Push Docker Image
 
 on:
   push:
@@ -40,22 +40,13 @@ jobs:
             type=sha,prefix=
             type=raw,value=latest,enable={{is_default_branch}}
 
-      - name: Build and push backend image
+      - name: Build and push image
         uses: docker/build-push-action@v5
         with:
-          context: ./backend
+          context: .
+          file: ./backend/Dockerfile
           push: true
-          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-backend:${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
-
-      - name: Build and push frontend image
-        uses: docker/build-push-action@v5
-        with:
-          context: ./frontend
-          push: true
-          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-frontend:${{ steps.meta.outputs.tags }}
+          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max