Auto backup n8n workflows to GitLab with AI-generated documentation

This n8n template automatically backs up your workflows to a GitLab repository whenever they're updated or activated, and generates README documentation using AI.
This workflow can be aslo added as a sub-workflow to any existing workflow to enable backup functionality.

Who's it for

This template is perfect for n8n users who want to:

• Maintain version control of their workflows
• Create automatic backups in Git repositories
• Generate documentation for their workflows using AI
• Keep their workflow library organized and documented

How it works

The workflow monitors n8n for workflow updates and activations, then automatically saves the workflow JSON to GitLab and generates a README file using OpenAI:

1. Trigger Detection: Uses n8n Trigger to detect when workflows are updated or activated
2. Workflow Retrieval: Fetches the complete workflow data using the n8n API
3. Repository Check: Lists existing files in GitLab to determine if the workflow already exists
4. Smart File Management: Either creates a new file or updates an existing one based on the repository state
5. AI Documentation: Generates a README.md file using OpenAI's GPT model to document the workflow
6. GitLab Storage: Saves both the workflow JSON and README to organized folders in your GitLab repository

Requirements

• GitLab account with API access and a repository named "all_projects"
• n8n API credentials for accessing workflow data
• OpenAI API key for generating documentation
• GitLab personal access token with repository write permissions

How to set up

1. Configure GitLab credentials: Add your GitLab API credentials in the GitLab nodes
2. Set up n8n API: Configure your n8n API credentials for the workflow retrieval node
3. Add OpenAI credentials: Set up your OpenAI API key in the "Message a model" node
4. Update repository details: Modify the owner and repository name in GitLab nodes to match your setup
5. Test the workflow: Save and activate the workflow to test the backup functionality

How to customize the workflow

• Change repository structure: Modify the file path expressions to organize workflows differently
• Customize commit messages: Update the commit message templates in GitLab nodes
• Enhance AI documentation: Modify the OpenAI prompt to generate different styles of documentation
• Add file filtering: Include conditions to backup only specific workflows
• Extend triggers: Add webhook or schedule triggers for different backup scenarios
• Multiple repositories: Duplicate GitLab nodes to backup to multiple repositories simultaneously