What This Workflow Does
This template implements a fully self-hosted Retrieval-Augmented Generation (RAG) system using Qdrant as the vector database and Ollama for local LLM processing. It solves the challenge of creating a private, secure knowledge base that can answer questions based on your internal documents without relying on cloud services or exposing sensitive data.
The workflow provides two main functions: maintaining your knowledge base by processing and embedding documents into Qdrant, and querying that knowledge base through natural language questions. All processing happens on your own infrastructure, giving you complete control over data privacy and security.
How It Works
1. Document Processing Workflow
When new documents are added to your knowledge base, the workflow automatically processes them by splitting content into chunks, generating embeddings using Ollama, and storing these in Qdrant with proper metadata. This creates a searchable vector index of your knowledge.
2. Query Processing Workflow
When users ask questions, the system converts the query into embeddings, searches Qdrant for relevant document chunks, then uses Ollama to generate answers based on the retrieved context. This combines the accuracy of document retrieval with the natural language capabilities of LLMs.
Pro tip: Start with a small set of well-structured documents to test the system before scaling up. Proper document formatting significantly improves retrieval quality.
Who This Is For
This solution is ideal for businesses that handle sensitive internal documentation, technical knowledge bases, or proprietary information that cannot be processed through public AI services. It's particularly valuable for:
- Companies in regulated industries (healthcare, finance, legal)
- Technical teams maintaining internal documentation
- Organizations with strict data sovereignty requirements
- Teams wanting to avoid cloud API costs for large knowledge bases
What You'll Need
- A server running Linux with Docker (minimum 16GB RAM recommended)
- Basic familiarity with command line and Docker Compose
- n8n instance (self-hosted or cloud) with access to your server
- Your documents in supported formats (PDF, TXT, Markdown)
Quick Setup Guide
- Download the workflow JSON file
- Import into your n8n instance
- Deploy Qdrant and Ollama using the included Docker Compose reference
- Configure the workflow with your server details
- Add your first documents to the watch folder
- Test queries through the provided webhook or API endpoint
Key Benefits
Complete data privacy: All processing happens on your infrastructure with no data leaving your network. This meets strict compliance requirements for sensitive industries.
Cost-effective scaling: Avoid per-query API costs associated with commercial AI services. Once deployed, the system can handle unlimited queries at minimal additional cost.
Customizable knowledge: The system learns exclusively from your documents, avoiding generic responses that might not match your specific terminology or processes.
Open source foundation: Built on proven open-source tools that can be modified to your exact requirements without vendor lock-in.