Add n8n Integration

[lolochristen]

Aspire issue link

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Overview

Add an Integration for n8n to run and configure a self-hosted n8n environment.
I have already built this extension and happy to integrate into the CommunityToolkit. I can provide a PR Draft any time.
It supports the following scenarios:

• Simple hosted n8n environment (uses SQLite)
• Persistence with postgres (WithPostgresDatabase)
• Distributed Worker Container (AddWorker / WithQueueMode) using redis
• Isolated TaskRunner Container (AddTaskRunner) to support full scripting support. For deployments, the TaskRunner should be a sidecar of the worker.
• Setup of some parameters (WithLicenseKey. WithInstanceOwner, WithTimeZone, WithCommunityPackages, WithMetrics)

I have tested and tuned the extension by deploying environments on Azure Container Apps.

Usage example

Simple setup with SQLite:

var builder = DistributedApplication.CreateBuilder(args);
var n8n = builder.AddN8n("n8n");
builder.Build().Run();

Complex scenario with postgres db for persitence, worker (queues for scaling) and task runner (for isolation and support for pyhton script) and owner and licence key config:

var builder = DistributedApplication.CreateBuilder(args);

var ownerPassword = builder.AddParameter("owner-password", "Pass$Word1");
var licenseKey = builder.AddParameter("license-key", "[license-key]");

var postgres = builder.AddPostgres("postgres")
    .WithDataVolume();

var db = postgres.AddDatabase("n8n-db");

var redis = builder.AddRedis("redis");

var n8n = builder.AddN8n("n8n", port: 5678)
    .WithDataBindMount("./.n8n_data")
    .WithPostgresDatabase(db)
    .WithQueueMode(redis)
    .WithInstanceOwner("admin@dev.local", "Admin", "Local", ownerPassword)
    .WithLicenseKey(licenseKey);

var worker = n8n.AddWorker("worker", port: 5679)
    .WithPostgresDatabase(db)
    .WithQueueMode(redis);

worker.AddTaskRunner("runner");

builder.Build().Run();

Remark: The password needs to be encrypted using BCrypt. I have used BCrypt.Net-Next library to make that work.

Additional context

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[lolochristen]

/stale-extend
Anybody out there? Are you still accepting new integrations?