数字我 Digital Me：全量入库（大文件走 Git LFS）

digital-me-backend/Dockerfile

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+FROM node:20-alpine AS dependencies
+
+WORKDIR /app
+
+COPY package.json package-lock.json .npmrc ./
+RUN npm ci
+
+FROM dependencies AS development
+
+COPY . .
+
+ENV NODE_ENV=development
+EXPOSE 3701
+
+CMD ["npm", "run", "dev"]
+
+FROM node:20-alpine AS runtime
+
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+COPY package.json package-lock.json .npmrc ./
+RUN npm ci --omit=dev && npm cache clean --force
+
+COPY --chown=node:node . .
+
+USER node
+
+EXPOSE 3701
+
+HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
+  CMD wget --quiet --spider http://127.0.0.1:3701/health || exit 1
+
+CMD ["npm", "start"]