mtcto / chat-ollama

ChatOllama is an open source chatbot based on LLMs. It supports a wide range of language models, and knowledge base management.

ChatOllama

ChatOllama is an open source chatbot based on LLMs. It supports a wide range of language models including:

• Ollama served models
• OpenAI
• Azure OpenAI
• Anthropic

ChatOllama supports multiple types of chat:

• Free chat with LLMs
• Chat with LLMs based on knowledge base

ChatOllama feature list:

• Ollama models management
• Knowledge bases management
• Chat
• Commercial LLMs API keys management

Join Our Community

If you are a user, contributor, or even just new to ChatOllama, you are more than welcome to join our community on Discord by clicking the invite link.

If you are a contributor, the channel technical-discussion is for you, where we discuss technical stuff.

If you have any issue in ChatOllama usage, please report to channel customer-support. We will help you out as soon as we can.

Quick Start

As a user of ChatOllama, please walk through the document below, to make sure you get all the components up and running before starting using ChatOllama.

Supported Vector Databases

ChatOllama supported 2 types of vector databases: Milvus and Chroma.

Please refer to the .env.example for how to work with your vector database setup.

# Supported values: chroma, milvus
VECTOR_STORE=chroma
CHROMADB_URL=http://localhost:8000
MILVUS_URL=http://localhost:19530

By default ChatOllama is using Chroma. If you'd like to use Milvus, set VECTOR_STORE to milvus and specify the corresponding URL. It works both in the development server and Docker containers.

Use with Nuxt 3 Development Server

If you'd like to run with the latest code base and apply changes as needed, you can clone this repository and follow the steps below.

1. Install and run Ollama server

   You will need an Ollama server running. Follow the installation guide of Ollama. By default, it's running on http://localhost:11434.

2. Install Chroma

   Please refer to https://docs.trychroma.com/getting-started for Chroma installation.

   We recommend you run it in a docker container:

   #https://hub.docker.com/r/chromadb/chroma/tags
   
   docker pull chromadb/chroma
   docker run -d -p 8000:8000 chromadb/chroma

   Now, ChromaDB is running on http://localhost:8000

3. ChatOllama Setup

   Now, we can complete the necessary setup to run ChatOllama.

   3.1 Copy the .env.example file to .env file:

   cp .env.example .env

   3.2 Make sure to install the dependencies:

   # npm
   npm install
   
   # pnpm
   pnpm install
   
   # yarn
   yarn install
   
   # bun
   bun install

   3.3 Run a migration to create your database tables with Prisma Migrate

   # npm
   npm run prisma-migrate
   
   # pnpm
   pnpm prisma-migrate
   
   # yarn
   yarn prisma-migrate
   
   # bun
   bun run prisma-migrate

4. Launch Development Server

   Make sure both Ollama Server and ChromaDB are running.

   Start the development server on http://localhost:3000:

   # npm
   npm run dev
   
   # pnpm
   pnpm dev
   
   # yarn
   yarn dev
   
   # bun
   bun run dev

Use with Docker

This is the easist way to use ChatOllama.

The only thing you need is a copy of docker-compose.yaml. Please download it and execute the command below to launch ChatOllama.

$ docker compose up

As ChatOllama is running within a docker container, you should set Ollama server to http://host.docker.internal:11434 in the Settings section, assuming your Ollama server is running locally with default port.

Make sure you initialize the SQLite database as below if you are launching the dockerized ChatOllama for the first time:

$ docker compose exec chatollama npx prisma migrate dev

Prerequisites for knowledge bases

When using KnowledgeBases, we need a valid embedding model in place. It can be one of the models downloaded by Ollama or from 3rd party service provider for example, OpenAI.

Ollama Managed Embedding Model

We recommend you download nomic-embed-text model for embedding purpose.

You can do so on Models page http://localhost:3000/models, or via CLI as below if you are using Docker.

# In the folder of docker-compose.yaml

$ docker compose exec ollama ollama pull nomic-embed-text:latest

OpenAI Embedding Model

If you prefer to use OpenAI, please make sure you set a valid OpenAI API Key in Settings, and fill with one of the OpenAI embedding models listed below:

• text-embedding-3-large
• text-embedding-3-small
• text-embedding-ada-002

Data Storage with Docker Containers

There are 2 types of data storage, vector data and relational data. See the summary below and for more details, please refer to docker-compose.yaml for the settings.

Vector data

With docker-compose.yaml, a dockerized Chroma database is run side by side with ChatOllama. The data is persisted in a docker volume.

Relational data

The relational data including knowledge base records and their associated files are stored in a SQLite database file persisted and mounted from ~/.chatollama/chatollama.sqlite.

Developers Guide

As ChatOllama is still under active development, features, interfaces and database schema may be changed. Please follow the instructions below in your every git pull to make sure your dependencies and database schema are always in sync.

1. Install the latest dependencies
   • npm install OR
   • pnpm install
2. Prisma migrate
   • pnpm run prisma-migrate OR
   • npm run prisma-migrate

Change logs:

Here we summarize what's done and released in our day-to-day development.

03/10/2024

1. Instructions data will be stored in SQLite database.
2. vueuse is introduced for storage management.