J*aScript容器化部署方案

# 使用官方Node.js运行时作为基础镜像
FROM node:18-alpine AS base
<h1>设置工作目录</h1><p>WORKDIR /app</p><h1>复制package文件</h1><p>COPY package*.json ./</p><h1>生产环境依赖安装（跳过开发依赖）</h1><p>FROM base AS deps
RUN npm ci --only=production && npm cache clean --force</p><h1>复制源码</h1><p>FROM base AS app
COPY . .</p><h1>构建静态资源（如React/Vue项目）</h1><p>RUN npm run build</p>
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                <h1>运行时阶段</h1><p>FROM node:18-alpine AS runtime
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY --from=app /app ./
EXPOSE 3000
CMD ["npm", "start"]</p>

version: '3.8'
services:
  web:
    build: .
    ports:
      - "3000:3000"
    environment:
      - NODE_ENV=production
      - DB_HOST=db
    depends_on:
      - db
    restart: unless-stopped
<p>db:
image: postgres:15
environment:
POSTGRES_DB: myapp
POSTGRES_USER: user
POSTGRES_PASSWORD: password
volumes:</p><ul><li>pgdata:/var/lib/postgresql/data</li></ul><p>volumes:
pgdata:</p>

docker-compose pull
docker-compose up -d