antti-saarela / azure-search-openai-demo

A sample app for the Retrieval-Augmented Generation pattern running in Azure, using Azure Cognitive Search for retrieval and Azure OpenAI large language models to power ChatGPT-style and Q&A experiences.

Home Page:https://azure.microsoft.com/products/search

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ChatGPT + Enterprise data with Azure OpenAI and Cognitive Search

This sample demonstrates a few approaches for creating ChatGPT-like experiences over your own data using the Retrieval Augmented Generation pattern. It uses Azure OpenAI Service to access the ChatGPT model (gpt-35-turbo), and Azure Cognitive Search for data indexing and retrieval.

The repo includes sample data so it's ready to try end to end. In this sample application we use a fictitious company called Contoso Electronics, and the experience allows its employees to ask questions about the benefits, internal policies, as well as job descriptions and roles.

RAG Architecture

Features

  • Chat and Q&A interfaces
  • Explores various options to help users evaluate the trustworthiness of responses with citations, tracking of source content, etc.
  • Shows possible approaches for data preparation, prompt construction, and orchestration of interaction between model (ChatGPT) and retriever (Cognitive Search)
  • Settings directly in the UX to tweak the behavior and experiment with options

Getting Started

AZURE RESOURCE COSTS by default this sample will create Azure App Service and Azure Cognitive Search resources that have a monthly cost, as well as Form Recognizer resource that has cost per document page. You can switch them to free versions of each of them if you want to avoid this cost by changing the parameters file under the infra folder (though there are some limits to consider; for example, you can have up to 1 free Cognitive Search resource per subscription, and the free Form Recognizer resource only analyzes the first 2 pages of each document.)

Prerequisites

To Run Locally

  • Azure Developer CLI
  • Python 3+
    • Important: Python and the pip package manager must be in the path in Windows for the setup scripts to work.
    • Important: Ensure you can run python --version from console. On Ubuntu, you might need to run sudo apt install python-is-python3 to link python to python3.
  • Node.js
  • Git
  • Powershell 7+ (pwsh) - For Windows users only.
    • Important: Ensure you can run pwsh.exe from a PowerShell command. If this fails, you likely need to upgrade PowerShell.

NOTE: Your Azure Account must have Microsoft.Authorization/roleAssignments/write permissions, such as User Access Administrator or Owner.

Installation

Project Initialization

  1. Create a new folder and switch to it in the terminal
  2. Run azd auth login --tenant-id 81b59a4e-f4e0-4903-be71-0ee63ff2b992
  3. Run azd init -t azure-search-openai-demo
    • For the target location, the regions that currently support the models used in this sample are East US or West Europe. For an up-to-date list of regions and models, check here

Starting from scratch:

Execute the following command, if you don't have any pre-existing Azure services and want to start from a fresh deployment.

  1. Run azd up - This will provision Azure resources and deploy this sample to those resources, including building the search index based on the files found in the ./data folder.
  2. After the application has been successfully deployed you will see a URL printed to the console. Click that URL to interact with the application in your browser.

It will look like the following:

'Output from running azd up'

NOTE: It may take a minute for the application to be fully deployed. If you see a "Python Developer" welcome screen, then wait a minute and refresh the page.

Use existing resources:

  1. Run azd env set AZURE_OPENAI_SERVICE {Name of existing OpenAI service}
  2. Run azd env set AZURE_OPENAI_RESOURCE_GROUP {Name of existing resource group that OpenAI service is provisioned to}
  3. Run azd env set AZURE_OPENAI_CHATGPT_DEPLOYMENT {Name of existing ChatGPT deployment}. Only needed if your ChatGPT deployment is not the default 'chat'.
  4. Run azd env set AZURE_OPENAI_GPT_DEPLOYMENT {Name of existing GPT deployment}. Only needed if your ChatGPT deployment is not the default 'davinci'.
  5. Run azd up
azd auth login --tenant-id 7de4405f-a24c-490d-af4a-f2ec4a6835c9

HUS Kehitys infra minimum configuration


azd env set AZURE_TENANT_ID 7de4405f-a24c-490d-af4a-f2ec4a6835c9
azd env set AZURE_SUBSCRIPTION_ID 40526986-8452-4261-9870-ce1d39d847d0
azd env set AZURE_RESOURCE_GROUP husdl-dev-openai-search-poc
azd env set AZURE_LOCATION westeurope
azd env set AZURE_OPENAI_SERVICE husdl-dev-openai-husdltkbot

Optional settings


azd env set AZURE_OPENAI_CHATGPT_DEPLOYMENT {Name of existing ChatGPT deployment}.
azd env set AZURE_OPENAI_GPT_DEPLOYMENT {Name of existing GPT deployment}. 

azd env list
azd env get-values
azd up

Alternatively you can run first

azd provision

and then to deploy the application run

azd deploy

Updating the solution

Later to update just the application without re-indexing documents run:

azd deploy

The command azd deploy will not provision Azure resources or do any changes to them.

To change the Azure infrastructure or to provision the resources to another resource group etc. run:

azd provision

Note: The command azd provision will provision Azure resources based on the active azd env configuration and upload and index all the documents in the data sub-folder. This may take several hours depending on the amount of document (pages) and will incur some additional Azure costs.

NOTE: You can also use existing Search and Storage Accounts. See ./infra/main.parameters.json for list of environment variables to pass to azd env set to configure those existing resources.

Deploying or re-deploying a local clone of the repo:

  • Simply run azd up

Running locally:

  1. Run azd login
  2. Change dir to app
  3. Run ./start.ps1 or ./start.sh or run the "VS Code Task: Start App" to start the project locally.

Open a new terminal with Powershell


cd app

./start.ps1

Sharing Environments

Run the following if you want to give someone else access to completely deployed and existing environment.

  1. Install the Azure CLI
  2. Run azd init -t azure-search-openai-demo
  3. Run azd env refresh -e {environment name} - Note that they will need the azd environment name, subscription Id, and location to run this command - you can find those values in your ./azure/{env name}/.env file. This will populate their azd environment's .env file with all the settings needed to run the app locally.
  4. Run pwsh ./scripts/roles.ps1 - This will assign all of the necessary roles to the user so they can run the app locally. If they do not have the necessary permission to create roles in the subscription, then you may need to run this script for them. Just be sure to set the AZURE_PRINCIPAL_ID environment variable in the azd .env file or in the active shell to their Azure Id, which they can get with az account show.

Quickstart

  • In Azure: navigate to the Azure WebApp deployed by azd. The URL is printed out when azd completes (as "Endpoint"), or you can find it in the Azure portal.
  • Running locally: navigate to 127.0.0.1:5000

Once in the web app:

  • Try different topics in chat or Q&A context. For chat, try follow up questions, clarifications, ask to simplify or elaborate on answer, etc.
  • Explore citations and sources
  • Click on "settings" to try different options, tweak prompts, etc.

Resources

About

A sample app for the Retrieval-Augmented Generation pattern running in Azure, using Azure Cognitive Search for retrieval and Azure OpenAI large language models to power ChatGPT-style and Q&A experiences.

https://azure.microsoft.com/products/search

License:MIT License


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