Ansible is a powerful configuration management tool, and when combined with Docker, it becomes even more versatile. By following a few simple steps, you can use Ansible to install and manage Docker on your target hosts. This guide provides a step-by-step tutorial on how to use Ansible with Docker, allowing you to automate your Docker infrastructure efficiently.
- Create a directory named plugins within your Ansible project directory.
- Inside the plugins directory, establish a subdirectory corresponding to the type of plugin you intend to extend. For instance, if you aim to extend the connection plugin, generate a subdirectory named connection_plugins. Other plugin types available for extension encompass action, lookup, callback, inventory, etc.
- Within the pertinent plugin subdirectory, produce a Python file with a .py extension. This file will encapsulate your custom plugin code. Ensure it possesses a meaningful name.
- Define your plugin class within this Python file. The class should inherit from the pertinent base class, furnishing the requisite methods and attributes for your plugin type. The Ansible documentation provides a comprehensive list of available base classes.
- Implement the necessary methods and attributes for your plugin. The specific methods and attributes will vary based on the type of plugin you are extending. Consult the Ansible documentation for precise details regarding the required methods and attributes for each plugin type.
- Save the Python file containing your plugin code.
- Your custom plugin is now ready for utilization in Ansible playbooks. Reference it appropriately within your playbook by including the relevant directive. For instance, to deploy a custom action plugin, integrate an action_plugins directive in your playbook, specifying the full import path to your custom plugin class.
By adhering to these steps, you can augment Ansible with custom plugins, enabling the addition of new functionality or modification of existing behavior.