Notes - AI Bot Mail-Chat Integration (n8n, Open WebUI)

Overview

Requirements

• Docker / Investigations - Docker

• GitHub - n8n-io/n8n: Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

• open-webui/open-webui: User-friendly AI Interface (Supports Ollama, OpenAI API, ...) - https://github.com/open-webui/open-webui

Tips

• Concurrency control | n8n Docs - https://docs.n8n.io/hosting/scaling/concurrency-control/

Logs

• Setup Windows 10, WSL2, Docker within WSL2.

• in WSL2

  • docker volume create n8n_data
    docker run -it --rm --name n8n -p 5678:5678 -v n8n_data:/home/node/.n8n docker.n8n.io/n8nio/n8n
    docker run -it --rm --name n8n -e N8N_SECURE_COOKIE=false -e N8N_CONCURRENCY_PRODUCTION_LIMIT=1 -p 5678:5678 -v n8n_data:/home/node/.n8n docker.n8n.io/n8nio/n8n
    
    or
    $ docker run -d --rm --name n8n -e NODE_OPTIONS='--max-old-space-size=2048' -e N8N_SECURE_COOKIE=false -e N8N_CONCURRENCY_PRODUCTION_LIMIT=1 -p 5678:5678 -v n8n_data:/home/node/.n8n docker.n8n.io/n8nio/n8n

• Using a testing gmail address.

  • Folllowing the instruction: https://docs.n8n.io/integrations/builtin/trigger-nodes/n8n-nodes-base.gmailtrigger/?utm_source=n8n_app&utm_medium=node_settings_modal-credential_link&utm_campaign=n8n-nodes-base.gmailTrigger & Google credentials | n8n Docs - https://docs.n8n.io/integrations/builtin/credentials/google/

    • Have a Google Cloud Project “N8N TEST” at https://console.cloud.google.com/

      • Prepare for enabling OAuth for the project

      • Add OAuth Client

      • Add the testing gmail address to the “Tester” in OAuth Agreement configuration.

• Build n8n workflow

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  • 
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• Configure Ollama

  • OllamaでローカルLLM - https://okumuralab.org/~okumura/misc/250418.html

  • 

• ----WIP----

• Run Install Open WebUI

  • docker run -d -p 3000:8080 --add-host=host.docker.internal:host-gateway -v open-webui:/app/backend/data --name open-webui --restart always ghcr.io/open-webui/open-webui:main

Task Parking Lot

• Setup TLS/HTTPS (recommended), for tailscale network and access across instances.

  • with proper Nginx routing/hardening.

  • Enabling HTTPS · Tailscale Docs - https://tailscale.com/kb/1153/enabling-https

• For testing purpose, setup a cloned instance of my Open WebUI instance: 📦 Exporting and Importing Database | Open WebUI - https://docs.openwebui.com/tutorials/database/

References

• 🚀 n8nで業務を自動化！ノーコードツールの導入から実践活用まで 🤖 #業務効率化 - Qiita