A visual design aid for building and testing Jinja2 templates with YAML data, supporting Ansible filter plugins.
TD4A (Template Designer for Automation) is a web-based visual design tool for building, testing, and debugging Jinja2 templates. It allows users to combine YAML data with Jinja2 templates and see the rendered output in real-time, supporting Ansible filter plugins and custom filters. The tool solves the problem of tedious trial-and-error in template development by providing an interactive environment.
Automation engineers, DevOps practitioners, and developers working with Jinja2 templates in Ansible, configuration management, or infrastructure-as-code projects.
Developers choose TD4A because it provides a dedicated visual interface for template development, integrates directly with Ansible ecosystems (filters, inventories), and supports both local and containerized deployment for flexibility.
Template designer for automation
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Includes all filter plugins from Ansible 2.9.12 and supports loading dynamic inventories, making it a natural fit for Ansible users. This reduces context switching during template development.
Offers a split-pane browser interface with data, template, and output views, enabling instant feedback and debugging. This visual approach streamlines the trial-and-error process.
Can be run via Docker/Podman containers or as a CLI tool, with optional CouchDB integration for persistent storage. This adaptability suits various deployment environments.
Allows loading custom Jinja2 filter plugins from specified directories, enhancing extensibility for project-specific needs. This is detailed in the README with command-line examples.
The README explicitly states the UI has only been tested with Chrome, which may cause issues in Firefox, Safari, or other browsers without additional validation.
Enabling features like CouchDB storage or custom filters requires manual environment variable configuration and volume mounting in containers, adding overhead for beginners or rapid prototyping.
Based on Ansible 2.9.12, it may lack support for newer filters or features in later Ansible releases, potentially limiting compatibility with modern playbooks.
Focuses on single-user workflows with local storage or optional CouchDB; there's no mention of multi-user editing or version control integration, hindering team-based development.