n8n

name	n8n
description	Use this skill when working with n8n workflows, automation, the n8n server, managing n8n containers, or building integrations with n8n.
version	1.0.0

n8n Skill

Server

• Host: build-faithmade (178.156.221.8) — Hetzner Ubuntu 24.04
• Stack: Docker Compose — n8n + Redis + PostgreSQL 15 + Traefik
• n8n port: 5678 (internal), exposed via Traefik on 443

SSH Access

ssh build-faithmade

Docker Management

# View running containers
ssh build-faithmade 'docker ps'

# View n8n logs
ssh build-faithmade 'docker logs n8n-n8n-1 --tail 50'

# Restart n8n
ssh build-faithmade 'docker restart n8n-n8n-1'

# Restart full stack
ssh build-faithmade 'cd /path/to/compose && docker compose restart'

# View all logs
ssh build-faithmade 'docker compose logs -f --tail 100'

n8n Concepts

• Workflows — sequences of nodes triggered by events or schedules
• Nodes — individual steps (HTTP Request, Webhook, Set, IF, etc.)
• Credentials — stored securely, referenced by name in nodes
• Expressions — {{ $json.field }} to reference data between nodes
• Webhook nodes — expose URLs to receive external data

Common Node Types

• Webhook — receive HTTP requests
• HTTP Request — call external APIs
• Schedule Trigger — cron-based triggers
• Set — transform/set data fields
• IF — conditional branching
• Code — run JavaScript
• Send Email — email notifications

Environment Variables

n8n config is typically in the Docker Compose file or .env:

N8N_HOST=
N8N_PORT=5678
N8N_PROTOCOL=https
WEBHOOK_URL=https://your-domain.com/
DB_TYPE=postgresdb
DB_POSTGRESDB_HOST=postgres