Set Up n8n Automation Workflows for CI/CD Integration

n8n automates deployment pipelines by integrating with GitHub, triggers builds in Jenkins, and deploys Docker containers when new code is pushed.

• n8n installed.

• GitHub repository with webhook support.

• Jenkins server with API token.

• Docker Hub account and credentials.

1. Prepare n8n Environment

• Navigate to http://localhost:5678 and log in.
• Click “Workflows,” then “+ New” and name it (e.g., “CI/CD Pipeline”).
• Click “+” to add nodes.

2. Trigger Node: GitHub Webhook

Node: Webhook

Settings:

• Path: github-push
• GitHub Webhook: https://<n8n-host>/webhook/github-push for push events

Output: Push event data (e.g., {{ $json.repository.full_name }}).

3. Build Node: Jenkins

Node: Jenkins

Settings:

• Credentials: Jenkins API token
• Job Name: build-job
• Parameters: Commit SHA {{ $node["Webhook"].json.after }}

Output: Build triggered.

4. Deploy Node: Docker

Node: Docker

Settings:

• Credentials: Docker Hub credentials
• Operation: Run
• Image: my-app:latest

Output: Container deployed.

• Flow: Webhook (GitHub) → Jenkins (build) → Docker (deploy).

• Execution: ~2 minutes.

• Speeds up delivery cycles by ~70%.

• Reduces deployment errors with automation.

• Ensures repeatable CI/CD processes.

• Webhook Fail: Verify GitHub webhook URL.

• Jenkins Issues: Check API token and job name.

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