깃플로우: 도커 이미지 빌드 추가

.github/workflows/docker-build.yml

@@ -0,0 +1,23 @@
+name: React CI with Docker
+on:
+  push:
+    branches: dev
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      # 도커허브 로그인
+      - name: Login to DockerHub
+        uses: docker/[email protected]
+        with:
+         username: ${{ secrets.DOCKERHUB_USERNAME }}
+         password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      # 도커 이미지 빌드/업로드
+      - name: docker image build and push
+        run: |
+          docker build -t ${{ secrets.DOCKER_REPO }}/front -f Dockerfile.prod .
+          docker push ${{ secrets.DOCKER_REPO }}/front