azure-functions-doctor 0.1.0

A diagnostic tool for Python Azure Functions

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🤔 Why Azure Functions Doctor?

• You're getting random 500 errors and suspect misconfiguration?
• Need to verify your dev environment before CI/CD deployment?
• Want a quick health check without digging through docs?

This tool saves time by automating common Azure Functions environment diagnostics.

🚀 Key Features

• Diagnose Python version, venv, azure-functions package
• Validate host.json, local.settings.json, and function structure
• Fully customizable via rules.json (see docs)

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🩺 Overview

Azure Functions Doctor is a Python-based CLI tool designed to diagnose and validate your local Azure Functions environment. This tool helps identify configuration issues, missing dependencies, or version mismatches commonly found in Python-based Azure Functions.

The behavior and rules for each check are defined declaratively in the rules.json file located in the project root. This file allows users and developers to customize or extend validation logic without modifying Python code directly. 📘 Learn more: rules.json documentation

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🪠 Requirements

• Python 3.9+
• Git
• Optional: Azure Function Core Tools v4 (npm i -g azure-functions-core-tools@4)
• Recommended: Unix-like shell or PowerShell for Makefile support

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📦 Installation

1. Clone the repository and navigate to the project directory:

git clone https://github.com/yeongseon/azure-functions-doctor.git
cd azure-functions-doctor

2. Create and activate a virtual environment:

python3 -m venv .venv
source .venv/bin/activate  # On Windows: .venv\Scripts\activate

3. Install the tool:

pip install -e .

Alternatively, install from PyPI (when published):

pip install azure-functions-doctor

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🩺 Usage

Navigate to your Azure Functions project directory, then run:

azfunc-doctor diagnose

To see all available commands:

azfunc-doctor --help

✅ Sample Output

azfunc-doctor diagnose
🩺 Azure Functions Doctor for Python v0.1.0
📁 Path: /root/Github/azure-functions-doctor/examples/basic-hello

✖ Python Env
  • Python version: Python version is 3.12.3, expected >=3.9
  • Virtual environment: VIRTUAL_ENV is set
  • Python executable: /root/.local/share/hatch/env/virtual/azure-functions-doctor/.../bin/python exists
  • requirements.txt: /root/Github/azure-functions-doctor/examples/basic-hello/requirements.txt exists
  • azure-functions package: Package 'azure_functions' is not installed

✖ Project Structure
  • host.json: exists
  • local.settings.json: is missing
  • main.py: is missing

Summary
✔ 0 Passed    ✖ 2 Failed

📌 Full output: examples/basic-hello/diagnose-output.md

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💡 Example

A full example is available under examples/basic-hello, showing how to:

• Prepare a minimal Azure Functions app structure with only host.json and requirements.txt
• Run azfunc-doctor to simulate and inspect diagnosis results

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📋 Documentation

For advanced usage and developer guides, visit the project site or GitHub repository.

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🤝 Contributing

We welcome issues and pull requests! See CONTRIBUTING.md for guidelines.

If you’ve found this tool helpful, please ⭐ the repo!

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📄 License

This project is licensed under the MIT License.