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CONFIGURING_THE_KERNEL.md

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Configuring the Kernel

As covered in the notebooks, we require a .env file with the proper settings for the model you use. A .env file must be placed in the getting_started directory. Copy the contents of the .env.example file from this directory and paste it into the .env file that you just created.

If interested, as you learn more about Semantic Kernel, there are a few other ways to make sure your secrets, keys, and settings are used:

1. Environment Variables

Set the keys/secrets/endpoints as environment variables in your system. In Semantic Kernel, we leverage Pydantic Settings. If using Environment Variables, it isn't required to pass in explicit arguments to class constructors.

NOTE: Please make sure to include GLOBAL_LLM_SERVICE set to either OpenAI, AzureOpenAI, or HuggingFace in your .env file or environment variables. If this setting is not included, the Service will default to AzureOpenAI.

Option 1: using OpenAI

Add your OpenAI Key key to either your environment variables or to the .env file in the same folder (org Id only if you have multiple orgs):

GLOBAL_LLM_SERVICE="OpenAI"
OPENAI_API_KEY="sk-..."
OPENAI_ORG_ID=""
OPENAI_CHAT_MODEL_ID=""

The environment variables names should match the names used in the .env file, as shown above.

Use "keyword arguments" to instantiate an OpenAI Chat Completion service and add it to the kernel:

Option 2: using Azure OpenAI

Add your Azure Open AI Service key settings to either your system's environment variables or to the .env file in the same folder:

GLOBAL_LLM_SERVICE="AzureOpenAI"
AZURE_OPENAI_API_KEY="..."
AZURE_OPENAI_ENDPOINT="https://..."
AZURE_OPENAI_CHAT_DEPLOYMENT_NAME="..."
AZURE_OPENAI_TEXT_DEPLOYMENT_NAME="..."
AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME="..."
AZURE_OPENAI_API_VERSION="..."

The environment variables names should match the names used in the .env file, as shown above.

Use "keyword arguments" to instantiate an Azure OpenAI Chat Completion service and add it to the kernel:

2. Custom .env file path

It is possible to configure the constructor with an absolute or relative file path to point the settings to a .env file located outside of the getting_started directory.

For OpenAI:

chat_completion = OpenAIChatCompletion(service_id="test", env_file_path='/path/to/file')

For AzureOpenAI:

chat_completion = AzureChatCompletion(service_id="test", env_file_path=env_file_path='/path/to/file')

3. Manual Configuration

  • Manually configure the api_key or required parameters on either the OpenAIChatCompletion or AzureChatCompletion constructor with keyword arguments.
  • This requires the user to manage their own keys/secrets as they aren't relying on the underlying environment variables or .env file.

4. Microsoft Entra Authentication

To learn how to use a Microsoft Entra Authentication token to authenticate to your Azure OpenAI resource, please navigate to the following guide.