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MLflow Header Plugin

一个用于在MLflow请求中自动添加自定义header的插件。

功能

此插件会自动在所有MLflow tracking请求中添加以下header:

  • X-Target-Service-IP: 目标服务的IP地址
  • X-Target-Service-PORT: 目标服务的端口

安装

方式1: 从源码安装

cd wedata-mlflow-header-plugin
pip install -e .

方式2: 使用pip安装

pip install wedata-mlflow-header-plugin

配置

插件通过环境变量来配置header的值:

  • MLFLOW_TARGET_SERVICE_IP: 设置目标服务IP(默认: "127.0.0.1")
  • MLFLOW_TARGET_SERVICE_PORT: 设置目标服务端口(默认: "5000")
  • WEDATA_MLFLOW_HEADER_PLUGIN_DEBUG: 开启debug日志输出(默认关闭;可设置为 1/true/on

配置示例

# 设置环境变量
export MLFLOW_TARGET_SERVICE_IP="192.168.1.100"
export MLFLOW_TARGET_SERVICE_PORT="8080"
export WEDATA_MLFLOW_HEADER_PLUGIN_DEBUG="1"

# 运行你的MLflow代码
python your_mlflow_script.py

或者在Python代码中设置:

import os
os.environ["MLFLOW_TARGET_SERVICE_IP"] = "192.168.1.100"
os.environ["MLFLOW_TARGET_SERVICE_PORT"] = "8080"
os.environ["WEDATA_MLFLOW_HEADER_PLUGIN_DEBUG"] = "1"

import mlflow

# 现在所有MLflow请求都会包含这些header
mlflow.set_tracking_uri("http://your-mlflow-server:5000")
mlflow.start_run()
# ... your MLflow code ...
mlflow.end_run()

使用示例

安装插件后,无需额外代码,MLflow会自动使用此插件:

import mlflow

# 插件会自动添加header到所有请求
mlflow.set_tracking_uri("http://your-mlflow-server:5000")

with mlflow.start_run():
    mlflow.log_param("param1", 5)
    mlflow.log_metric("metric1", 0.85)

验证插件

你可以通过以下方式验证插件是否正常工作:

import mlflow
from mlflow.tracking.request_header.registry import resolve_request_headers

# 检查注册的header providers
headers = resolve_request_headers()
print("Request Headers:", headers)

Debug模式说明

当设置 WEDATA_MLFLOW_HEADER_PLUGIN_DEBUG=1(或 true/on)时,插件会在每次 request_headers() 被调用时输出调试日志到 stderr,内容包括:

  • 从哪些环境变量读取 header 值(以及默认值)
  • 最终返回给 MLflow 的 headers(对疑似敏感字段会做基础脱敏)

开发

项目结构

wedata-mlflow-header-plugin/
├── setup.py                          # 安装配置
├── README.md                         # 文档
├── requirements.txt                  # 依赖
└── wedata-mlflow-header-plugin/
    ├── __init__.py                   # 包初始化
    └── plugin.py                     # 插件实现

运行测试

pip install pytest
pytest tests/

工作原理

该插件利用MLflow的插件系统,实现了 RequestHeaderProvider 接口。通过在 setup.py 中注册 mlflow.request_header_provider entry point,MLflow会自动发现并加载此插件。

每次MLflow发送HTTP请求时,都会调用插件的 request_headers() 方法,获取需要添加的header。

依赖

  • Python >= 3.8
  • mlflow >= 2.0.0

许可

MIT License

Release files for wedata-mlflow-header-plugin 0.1.2

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