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Django Migrations MCP Service

by mrrobotke

Django 迁移 MCP 服务

一个模型上下文协议 (MCP) 服务,用于管理分布式环境中的 Django 迁移。该服务包装了 Django 的迁移命令并将其公开为 MCP 端点,从而可以轻松管理跨多个服务的迁移并与 CI/CD 流水线集成。

特征

  • 检查迁移状态(相当于showmigrations

  • 创建带有验证的新迁移(相当于makemigrations

  • 应用带有安全检查的迁移(相当于migrate

  • 额外的验证和安全检查:

    • 顺序迁移顺序验证

    • 冲突检测

    • 依赖项验证

    • 迁移操作的安全性分析

Related MCP server: mcp-dbs

安装

本地开发

  1. 克隆存储库:

git clone https://github.com/mrrobotke/django-migrations-mcp.git
cd django-migrations-mcp
  1. 安装依赖项:

pip install -r requirements.txt

配置

设置以下环境变量:

export DJANGO_SETTINGS_MODULE="your_project.settings"
export MCP_SERVICE_PORT=8000  # Optional, defaults to 8000

用法

运行服务

  1. 直接使用 Python:

python -m migrations_mcp.service
  1. 使用 Docker:

docker build -t django-migrations-mcp .
docker run -e DJANGO_SETTINGS_MODULE=your_project.settings \
          -v /path/to/your/django/project:/app/project \
          -p 8000:8000 \
          django-migrations-mcp

MCP 端点

  1. 显示迁移:

from mcp import MCPClient

client = MCPClient()
migrations = await client.call("show_migrations")
  1. 进行迁移:

result = await client.call("make_migrations", {
    "app_labels": ["myapp"],  # Optional
    "dry_run": True  # Optional
})
  1. 应用迁移:

result = await client.call("migrate", {
    "app_label": "myapp",  # Optional
    "migration_name": "0001",  # Optional
    "fake": False,  # Optional
    "plan": True  # Optional
})

CI/CD 集成

GitHub Actions 工作流程示例:

name: Django Migrations Check

on:
  pull_request:
    paths:
      - '*/migrations/*.py'
      - '*/models.py'

jobs:
  check-migrations:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v2
    
    - name: Set up Python
      uses: actions/setup-python@v2
      with:
        python-version: '3.11'
    
    - name: Install dependencies
      run: |
        pip install -r requirements.txt
    
    - name: Start MCP service
      run: |
        python -m migrations_mcp.service &
    
    - name: Check migrations
      run: |
        python ci/check_migrations.py

check_migrations.py 脚本示例:

import asyncio
from mcp import MCPClient

async def check_migrations():
    client = MCPClient()
    
    # Check current status
    migrations = await client.call("show_migrations")
    
    # Try making migrations
    result = await client.call("make_migrations", {"dry_run": True})
    if not result.success:
        print(f"Error: {result.message}")
        exit(1)
    
    print("Migration check passed!")

if __name__ == "__main__":
    asyncio.run(check_migrations())

发展

运行测试

pytest migrations_mcp/tests/

代码风格

该项目遵循 PEP 8 准则。请使用以下格式格式化您的代码:

black migrations_mcp/
isort migrations_mcp/

执照

MIT 许可证。详情请参阅 LICENSE 文件。

贡献

  1. 分叉存储库

  2. 创建你的功能分支( git checkout -b feature/amazing-feature

  3. 提交您的更改( git commit -m 'Add amazing feature'

  4. 推送到分支( git push origin feature/amazing-feature

  5. 打开拉取请求

Docker 使用

该项目包含一个docker-commands.json文件,该文件为不同的部署场景提供了结构化的命令。您可以直接使用这些命令,也可以在脚本中解析它们。

可用的 Docker 配置

  1. Redis MCP 服务器

# Run Redis MCP server
docker run -i --rm mcp/redis redis://host.docker.internal:6379
  1. Django 迁移 MCP 服务器

# Basic setup
docker run -d \
  --name django-migrations-mcp \
  -e DJANGO_SETTINGS_MODULE=your_project.settings \
  -e MCP_SERVICE_PORT=8000 \
  -v /path/to/your/django/project:/app/project \
  -p 8000:8000 \
  django-migrations-mcp

# With Redis integration
docker run -d \
  --name django-migrations-mcp \
  -e DJANGO_SETTINGS_MODULE=your_project.settings \
  -e MCP_SERVICE_PORT=8000 \
  -e REDIS_URL=redis://host.docker.internal:6379 \
  -v /path/to/your/django/project:/app/project \
  -p 8000:8000 \
  --network host \
  django-migrations-mcp
  1. 开发环境

# Using docker-compose
docker-compose up -d --build
  1. 测试环境

# Run tests in container
docker run --rm \
  -e DJANGO_SETTINGS_MODULE=your_project.settings \
  -e PYTHONPATH=/app \
  -v ${PWD}:/app \
  django-migrations-mcp \
  pytest
  1. 生产环境

# Production setup with health check
docker run -d \
  --name django-migrations-mcp \
  -e DJANGO_SETTINGS_MODULE=your_project.settings \
  -e MCP_SERVICE_PORT=8000 \
  -e REDIS_URL=redis://your-redis-host:6379 \
  -v /path/to/your/django/project:/app/project \
  -p 8000:8000 \
  --restart unless-stopped \
  --network your-network \
  django-migrations-mcp

以编程方式使用命令

您可以以编程方式解析和使用这些命令:

import json
import subprocess

# Load commands
with open('docker-commands.json') as f:
    commands = json.load(f)

# Run Redis MCP server
redis_config = commands['mcpServers']['redis']
subprocess.run([redis_config['command']] + redis_config['args'])

# Run Django Migrations MCP server
django_config = commands['mcpServers']['djangoMigrations']
subprocess.run([django_config['command']] + django_config['args'])

网络设置

  1. 开发网络

docker network create mcp-dev-network
  1. 生产网络

docker network create --driver overlay --attachable mcp-prod-network

使用 MCP 工具

该服务公开了几个可以通过 curl 或任何 HTTP 客户端访问的端点:

  1. 显示迁移

curl -X POST http://localhost:8000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "show_migrations"}'
  1. 进行迁移

curl -X POST http://localhost:8000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "make_migrations", "params": {"apps": ["your_app"]}}'
  1. 应用迁移

curl -X POST http://localhost:8000/mcp \
  -H "Content-Type: application/json" \
  -d '{"method": "migrate", "params": {"app": "your_app"}}'
-
security - not tested
F
license - not found
-
quality - not tested

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