sin-github-action

GitHub Action that delegates CI/CD to n8n — zero GitHub Actions billing.

Instead of running expensive GitHub-hosted runners, this action simply POSTs your push/PR payload to a self-hosted n8n webhook on OCI. n8n handles the actual build, test, lint — and posts commit status back to GitHub.

Architecture

GitHub Push/PR
     ↓
sin-github-action (composite, uses only curl — ~2s, almost free)
     ↓ POST webhook
n8n @ n8n.delqhi.com
     ↓ SSH
OCI VM (ubuntu@92.5.60.87)
     ↓ npm run build, tsc, lint, tests
     ↓ POST /statuses
GitHub Commit Status ✅ / ❌

Usage

# .github/workflows/ci.yml
name: CI → n8n

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  dispatch:
    runs-on: ubuntu-latest
    steps:
      - uses: OpenSIN-AI/sin-github-action@main
        with:
          n8n_webhook_url: ${{ secrets.N8N_CI_WEBHOOK_URL }}
          github_token: ${{ secrets.GITHUB_TOKEN }}

Inputs

Input	Required	Description
n8n_webhook_url	✅	Full n8n webhook URL (from repo secret)
github_token	✅	GitHub token for commit status auth
repo	❌	Override repo (default: github.repository)
sha	❌	Override commit SHA (default: github.sha)
ref	❌	Override git ref (default: github.ref)
event	❌	Override event name (default: github.event_name)

Setup

1. Add secret N8N_CI_WEBHOOK_URL to your repo pointing to the n8n CI webhook
2. Import the n8n workflow from n8n-workflows/opensin-ci-pipeline.json
3. Replace your ci.yml with the example above

Why

GitHub Actions billing was blocking our CI on OpenSIN-AI. n8n runs 24/7 on our OCI VM (always-free tier) — unlimited builds, zero cost.