⚙️ chore: docker 멀티 스테이지 사용

BE/Dockerfile

@@ -1,8 +1,17 @@
-FROM node:20
-RUN mkdir -p /var/app
-WORKDIR /var/app
-COPY . .
+# 빌드 스테이지
+FROM node:20-slim as builder
+WORKDIR /app
+COPY package*.json ./
 RUN npm install
+COPY . .
 RUN npm run build
+
+# 실행 스테이지
+FROM node:20-slim
+WORKDIR /var/app
+COPY package*.json ./
+RUN npm install --only=production
+COPY --from=builder /app/dist ./dist
+
 EXPOSE 3000
-CMD [ "node", "dist/main.js" ]
+CMD ["node", "dist/main.js"]

FE/Dockerfile

@@ -1,17 +1,16 @@
-FROM node:20
-
-RUN mkdir -p /var/app
-WORKDIR /var/app
-
+# 빌드 스테이지
+FROM node:20-slim as builder
+WORKDIR /app
 COPY package*.json ./
 RUN npm install
-
 COPY . .
-
 RUN npm run build
 
+# 실행 스테이지
+FROM node:20-slim
+WORKDIR /app
 RUN npm install -g serve
+COPY --from=builder /app/dist ./dist
 
 EXPOSE 5173
-
 CMD ["serve", "-s", "dist", "-l", "5173"]