use_milvus_in_private_gpt.md

Signed-off-by: ChengZi <[email protected]>

bootcamp/tutorials/integration/use_milvus_in_private_gpt.md

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+# Use Milvus in PrivateGPT
+[PrivateGPT](https://privategpt.dev/) is a production-ready AI project that enables users to ask questions about their documents using Large Language Models without an internet connection while ensuring 100% privacy. PrivateGPT offers an API divided into high-level and low-level blocks. It also provides a Gradio UI client and useful tools like bulk model download scripts and ingestion scripts. Conceptually, PrivateGPT wraps a RAG pipeline and exposes its primitives, being ready to use and providing a full implementation of the API and RAG pipeline.
+
+In this tutorial, we will show you how to use Milvus as the backend vector database for PrivateGPT.
+
+> This tutorial is mainly referred to the [PrivateGPT](https://docs.privategpt.dev/installation/getting-started/installation) official installation guide. If you find that this tutorial has outdated parts, you can prioritize following the official guide and create an issue to us.
+
+## Base requirements to run PrivateGPT
+### 1. Clone the PrivateGPT Repository
+Clone the repository and navigate to it:
+
+```shell
+git clone https://github.com/zylon-ai/private-gpt
+cd private-gpt
+```
+
+### 2. Install Poetry
+Install [Poetry](https://python-poetry.org/docs/#installing-with-the-official-installer) for dependency management: Follow the instructions on the official Poetry website to install it.
+
+### 3. (Optional) Install make
+To run various scripts, you need to install make. 
+
+macOS (Using Homebrew):
+```shell
+brew install make
+```
+
+Windows
+(Using Chocolatey):
+```shell
+choco install make
+```
+
+
+## Install Available Modules
+PrivateGPT allows customization of the setup. We need to specify some modules settings. In this tutorial, we will use the following modules:
+- **LLM**: Ollama
+- **Embeddings**: Ollama
+- **Vector Stores**: Milvus
+- **UI**: Gradio
+
+```shell
+poetry install --extras "llms-ollama embeddings-ollama vector-stores-milvus ui"
+```
+
+
+## Start Ollama service
+Go to [ollama.ai](https://ollama.com/) and follow the instructions to install Ollama on your machine.
+
+After the installation, make sure the Ollama desktop app is closed.
+
+Now, start Ollama service (it will start a local inference server, serving both the LLM and the Embeddings):
+```shell
+ollama serve
+```
+
+Install the models to be used, the default `settings-ollama.yaml` is configured to user llama3.1 8b LLM (~4GB) and nomic-embed-text Embeddings (~275MB)
+
+By default, PrivateGPT will automatically pull models as needed. This behavior can be changed by modifying the `ollama.autopull_models` property.
+
+In any case, if you want to manually pull models, run the following commands:
+```shell
+ollama pull llama3.1
+ollama pull nomic-embed-text
+```
+You can optionally change to your favorite models in the `settings-ollama.yaml` file and pull them manually.
+
+## Change Milvus Settings
+In the file `settings-ollama.yaml`, set the vectorstore to milvus:
+```yaml
+vectorstore:
+  database: milvus
+```
+
+You can also add some cumstom Milvus configuration to specify your settings.
+Like this:
+```yaml
+milvus:
+  uri: http://localhost:19530
+  collection_name: my_collection
+```
+
+The available configuration options are:
+
+| Field Option | Description                          |
+|----------------------|--------------------------------------|
+| uri                  | Default is set to “local_data/private_gpt/milvus/milvus_local.db” as a local file; you can also set up a more performant Milvus server on docker or k8s e.g.http://localhost:19530, as your uri; To use Zilliz Cloud, adjust the uri and token to Endpoint and Api key in Zilliz Cloud.   |
+| token                | Pair with Milvus server on docker or k8s or zilliz cloud api key.|
+| collection_name      | The name of the collection, set to default “milvus_db”. |
+| overwrite            | Overwrite the data in collection if it existed, set to default as True. |
+
+
+ ## Start PrivateGPT
+
+Once all settings are done, you can run PrivateGPT with a gradio UI.
+
+```shell
+PGPT_PROFILES=ollama make run
+```
+The UI will be available at`http://0.0.0.0:8001`.
+
+![](../../../images/private_gpt_ui.png)
+
+You can play around with the UI and ask questions about your documents.
+