n8n
n8n is a workflow automation engine. It is the catalog's user-facing service, so when the network split is on it lands on the frontend network rather than the backend. It pairs with the Ignition MCP module: add the n8n service and the wizard offers to scaffold the MCP module drop-in alongside it.
| Image | n8nio/n8n:2.23.0 (override with N8N_IMAGE in .env) |
| Catalog kind | automation |
| Provides | automation |
| Requires | nothing |
| Network when split is on | frontend |
How it reaches a stack
Add n8n as a service in the wizard's services stage, the composer, or a declarative config. When you add it, the wizard asks whether to scaffold the Early-Access Ignition MCP module drop-in (mcp_dropin: true), which bridges n8n and the gateway for MCP workflows.
Preset ports
N8N_PORT=5678: host port for the n8n editor UI.
Post-setup
None for n8n itself, though first-boot owner registration in the n8n UI is required before its API is usable (the generated POST-SETUP.md Connections row notes this). Setting mcp_dropin adds a post-setup step for the Early-Access MCP module drop-in.