feat (infra): Trae 完成 asset_helper_backend 微服务基础架构 V1 初始化
核心实现：搭建 Monorepo 架构，完成 shared 共享包、gateway、user-service 基础框架开发 技术落地：严格匹配指定技术栈版本，完成 Docker、gRPC、FastAPI、PostgreSQL、Redis 等配置，实现服务间基础连通 配套文件：生成 Makefile、环境变量模板、数据库 / 脚本初始化文件及启动验证文档 架构定位：仅搭建基础架构骨架，无任何业务逻辑、业务规则及业务相关字段，为后续业务开发提供支撑
This commit is contained in:
fish
19
asset_helper_backend/services/user-service/Dockerfile
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19
asset_helper_backend/services/user-service/Dockerfile
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FROM python:3.13.7-alpine3.22
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WORKDIR /app
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COPY requirements.txt .
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RUN pip install --no-cache-dir -r requirements.txt
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COPY app/ .
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COPY ../../shared/ /shared/
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# 安装共享包
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RUN pip install -e /shared
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EXPOSE 50051
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD python -c "import socket; s = socket.socket(socket.AF_INET, socket.SOCK_STREAM); s.connect(('localhost', 50051)); s.close(); print('Healthy')" || exit 1
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CMD ["python", "main.py"]
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import grpc
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from concurrent import futures
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from app.grpc_generated import user_pb2, user_pb2_grpc
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from app.db.models import User
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from app.db.session import AsyncSessionLocal
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from sqlalchemy import select
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from datetime import datetime
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class UserService(user_pb2_grpc.UserServiceServicer):
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async def GetUser(self, request, context):
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async with AsyncSessionLocal() as session:
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result = await session.execute(select(User).where(User.id == request.id))
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user = result.scalar_one_or_none()
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if not user:
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context.set_code(grpc.StatusCode.NOT_FOUND)
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context.set_details("User not found")
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return user_pb2.UserResponse()
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return user_pb2.UserResponse(
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user=user_pb2.User(
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id=user.id,
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username=user.username,
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password_hash=user.password_hash,
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created_at=user.created_at.isoformat(),
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updated_at=user.updated_at.isoformat()
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)
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)
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async def CreateUser(self, request, context):
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async with AsyncSessionLocal() as session:
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user = User(
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username=request.username,
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password_hash=request.password_hash
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)
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session.add(user)
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await session.commit()
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await session.refresh(user)
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return user_pb2.UserResponse(
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user=user_pb2.User(
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id=user.id,
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username=user.username,
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password_hash=user.password_hash,
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created_at=user.created_at.isoformat(),
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updated_at=user.updated_at.isoformat()
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)
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)
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async def UpdateUser(self, request, context):
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async with AsyncSessionLocal() as session:
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result = await session.execute(select(User).where(User.id == request.id))
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user = result.scalar_one_or_none()
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if not user:
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context.set_code(grpc.StatusCode.NOT_FOUND)
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context.set_details("User not found")
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return user_pb2.UserResponse()
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user.username = request.username
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user.password_hash = request.password_hash
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await session.commit()
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await session.refresh(user)
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return user_pb2.UserResponse(
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user=user_pb2.User(
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id=user.id,
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username=user.username,
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password_hash=user.password_hash,
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created_at=user.created_at.isoformat(),
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updated_at=user.updated_at.isoformat()
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)
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)
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async def DeleteUser(self, request, context):
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async with AsyncSessionLocal() as session:
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result = await session.execute(select(User).where(User.id == request.id))
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user = result.scalar_one_or_none()
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if not user:
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context.set_code(grpc.StatusCode.NOT_FOUND)
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context.set_details("User not found")
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return user_pb2.EmptyResponse()
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await session.delete(user)
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await session.commit()
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return user_pb2.EmptyResponse()
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async def ListUsers(self, request, context):
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async with AsyncSessionLocal() as session:
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offset = (request.page - 1) * request.page_size
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result = await session.execute(
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select(User).offset(offset).limit(request.page_size)
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)
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users = result.scalars().all()
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total_result = await session.execute(select(User))
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total = len(total_result.scalars().all())
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user_list = [
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user_pb2.User(
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id=user.id,
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username=user.username,
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password_hash=user.password_hash,
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created_at=user.created_at.isoformat(),
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updated_at=user.updated_at.isoformat()
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)
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for user in users
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]
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return user_pb2.UsersResponse(
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users=user_list,
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total=total
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)
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from shared.utils.config import Settings
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class UserServiceSettings(Settings):
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# 继承基础配置，可添加服务特定配置
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service_name: str = "user-service"
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settings = UserServiceSettings()
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from shared.models import BaseDBModel
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from sqlalchemy import Column, String
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class User(BaseDBModel):
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__tablename__ = "users"
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username = Column(String, unique=True, index=True, nullable=False)
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password_hash = Column(String, nullable=False)
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16
asset_helper_backend/services/user-service/app/db/session.py
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asset_helper_backend/services/user-service/app/db/session.py
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from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
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from sqlalchemy.orm import sessionmaker
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from services.user_service.app.core.config import settings
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# 注意：这里使用 user_db 数据库
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DATABASE_URL = f"postgresql+asyncpg://user_service:password@postgres:5432/user_db"
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engine = create_async_engine(DATABASE_URL)
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AsyncSessionLocal = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
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async def get_db():
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async with AsyncSessionLocal() as session:
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try:
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yield session
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finally:
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await session.close()
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29
asset_helper_backend/services/user-service/app/main.py
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29
asset_helper_backend/services/user-service/app/main.py
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import grpc
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from concurrent import futures
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from app.api.user_service import UserService
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from app.grpc_generated import user_pb2_grpc
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from app.core.config import settings
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from app.db.models import BaseDBModel
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from app.db.session import engine
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import asyncio
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from loguru import logger
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async def init_db():
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# 创建数据库表
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async with engine.begin() as conn:
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await conn.run_sync(BaseDBModel.metadata.create_all)
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async def serve():
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server = grpc.aio.server(futures.ThreadPoolExecutor(max_workers=10))
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user_pb2_grpc.add_UserServiceServicer_to_server(UserService(), server)
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server.add_insecure_port(f"0.0.0.0:{settings.grpc_port}")
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# 初始化数据库
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await init_db()
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logger.info(f"Starting gRPC server on port {settings.grpc_port}")
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await server.start()
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await server.wait_for_termination()
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if __name__ == "__main__":
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asyncio.run(serve())
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13
asset_helper_backend/services/user-service/requirements.txt
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asset_helper_backend/services/user-service/requirements.txt
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fastapi==0.104.1
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uvicorn==0.24.0
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grpcio==1.59.0
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grpcio-tools==1.59.0
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pydantic==2.5.0
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pydantic-settings==2.1.0
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sqlalchemy==2.0.23
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asyncpg==0.28.0
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redis==5.0.1
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python-dotenv==1.0.0
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loguru==0.7.2
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passlib==1.7.4
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bcrypt==4.1.2
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