ci: 도커 이미지 빌드 액션 기능 추가

.github/workflows/deploy.yml

@@ -0,0 +1,22 @@
+name: Docker Publish
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Docker 이미지 빌드
+        run: docker build -t seaproject/my-app:latest .
+
+      - name: Docker Hub에 로그인
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Docker 이미지 푸시
+        run: docker push seaproject/my-app:latest

dockerfile

@@ -0,0 +1,15 @@
+FROM node:18-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm install
+
+COPY . .
+
+RUN npm run build
+
+EXPOSE 3000
+
+CMD [ "npm", "start" ]