Add n8n v2.6.4

[BookJJun-IJ]

Add n8n v2.6.4 - Workflow Automation Platform

Description

n8n is a powerful, self-hosted workflow automation platform that lets users connect 400+ apps and services together with a visual drag-and-drop editor. Build complex automations without coding, or add custom JavaScript/Python when needed.

Key Features:

• Connect 400+ apps: Gmail, Slack, Google Sheets, Notion, GitHub, Discord, Telegram, and more
• Visual drag-and-drop workflow editor - no coding required
• AI-powered automations with OpenAI, Claude, and other AI services
• Webhook support for external triggers and real-time integrations
• Custom JavaScript and Python code nodes for advanced logic
• Scheduled workflow execution with cron-like timing
• Branching, loops, and error handling for complex logic
• Community-built workflow templates

Technical Implementation:

• PostgreSQL 16-alpine backend for reliable workflow and credential storage
• $PCS_DEFAULT_PASSWORD for database authentication (no hardcoded credentials)
• Proper WEBHOOK_URL configured with ${APP_DOMAIN} for external trigger support
• Caddy reverse proxy labels for clean HTTPS URLs
• Port 80 exposed for clean NSL Router URLs (https://n8n-[username].nsl.sh)
• N8N_PROTOCOL: https configured for proper SSL routing
• Resource limits configured for both services
• Multi-language support (English, Korean, Chinese, Spanish, French)

Architecture:

User → Caddy (HTTPS) → n8n (port 80) → PostgreSQL (port 5432)

Security Checklist

• Authentication via onboarding process - owner account created on first launch (valid exception per CONTRIBUTING.md)
• No hardcoded credentials - $PCS_DEFAULT_PASSWORD used for database
• Proper file permissions:
  • n8n: user: "1000:1000" (non-root, writes to AppData only)
  • postgres: user: "0:0" (root required for PostgreSQL data directory)
• Specific version tags: n8nio/n8n:2.6.4, postgres:16-alpine
• No pre-install/post-install commands

Functionality Checklist

• Works immediately after installation - onboarding starts automatically
• Data mapped to /DATA/AppData/$AppID/data/ (n8n) and /DATA/AppData/$AppID/pgdata/ (PostgreSQL)
• No manual configuration required - first-launch onboarding handles setup
• Data persistence - workflows, credentials, and settings persist across reinstalls
• cpu_shares set on all services:
  • n8n: 70 (Interactive with Heavy Tasks - real-time editor + background workflow execution)
  • postgres: 50 (Standard Application - database backend)
• Resource limits configured:
  • n8n: 1G memory (512M reservation), 1.0 CPU
  • postgres: 512M memory (256M reservation), 0.5 CPU
• Fresh installation tested
• Uninstall/reinstall tested - data persists

Documentation Checklist

• Clear description in 5 languages (en_us, ko_kr, zh_cn, fr_fr, es_es)
• Multi-language taglines
• Multi-language tips with onboarding instructions
• Icon and screenshots point to Yundera/AppStore@main
• Thumbnail referenced

Testing

• ✅ Fresh installation - onboarding wizard appears on first access
• ✅ Owner account creation flow functional
• ✅ Workflow editor loads and responds to drag-and-drop
• ✅ Node connections and workflow execution working
• ✅ Webhook triggers functional with correct WEBHOOK_URL
• ✅ PostgreSQL database connection stable
• ✅ Scheduled workflow execution verified
• ✅ Data persistence across uninstall/reinstall
• ✅ Resource usage within configured limits
• ✅ Mobile-responsive workflow viewer

Category

Automation

Screenshots

1. Visual workflow editor with connected nodes
2. Node configuration and integration selection
3. Workflow execution results and logs

Links

• Official Repository
• Documentation
• Workflow Templates
• Docker Hub