docker-compose.yml

🐳 Docker Compose Overview

Sets up a 3-service architecture for a local RAG pipeline:

Ollama for local LLM inference and embedding
Open WebUI for document management
rag-backend for backend processing, embedding, and automation

Service Breakdown

ollama

Config	Description
image	ollama/ollama (official image)
ports	Exposes 11434 for LLM/embedding API
volumes	Persists Ollama model cache
restart	Automatically restarts unless stopped manually

ollama:
  image: ollama/ollama
  ports:
    - "11434:11434"
  volumes:
    - ollama_data:/root/.ollama
  restart: unless-stopped

open-webui

Config	Description
image	WebUI UI/API interface
ports	UI served at http://localhost:3000
environment	Points to Ollama endpoint (host.docker.internal)
volumes	Persists uploaded documents and app data
extra_hosts	Maps host.docker.internal to host IP

open-webui:
  image: ghcr.io/open-webui/open-webui:main
  ports:
    - "3000:8080"
  environment:
    - OLLAMA_BASE_URL=http://host.docker.internal:11434
  volumes:
    - openwebui_data:/app/backend/data
  extra_hosts:
    - host.docker.internal:host-gateway
  restart: unless-stopped

rag-backend

Config	Description
build	Built from ./rag_backend directory
depends_on	Starts after ollama and open-webui
volumes	Mounts local source code for hot reload
env_file	Loads .env variables (embedding/backend config)
command	Runs cron in foreground for scheduled uploads
extra_hosts	Enables container-to-host networking

rag-backend:
  build: ./rag_backend
  depends_on:
    - ollama
    - open-webui
  volumes:
    - ./rag_backend:/app
  env_file:
    - ./rag_backend/.env
  extra_hosts:
    - host.docker.internal:host-gateway
  restart: unless-stopped
  command: cron -f

Named Volumes

Volume	Purpose
ollama_data	Caches downloaded Ollama models
openwebui_data	Stores WebUI data and uploads

volumes:
  openwebui_data:
  ollama_data:

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