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backend/Dockerfile

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+# Build stage
+FROM node:20-alpine AS builder
+
+WORKDIR /usr/src/app
+
+COPY package*.json ./
+RUN npm install
+
+COPY . .
+
+# Prisma client 생성 및 TypeScript 빌드
+RUN npx prisma generate
+RUN npm run build
+
+# Production stage
+FROM node:20-alpine
+
+WORKDIR /usr/src/app
+
+COPY package*.json ./
+RUN npm install --only=production
+
+COPY --from=builder /usr/src/app/dist ./dist
+COPY --from=builder /usr/src/app/node_modules/.prisma ./node_modules/.prisma
+COPY --from=builder /usr/src/app/node_modules/@prisma/client ./node_modules/@prisma/client
+COPY --from=builder /usr/src/app/prisma ./prisma
+
+EXPOSE 4000
+
+# Prisma 마이그레이션 실행 후 백엔드 서버 실행
+CMD ["sh", "-c", "npx prisma migrate deploy && node dist/index.js"]