Description: Template-based refers to a method of creating virtual instances that allows users to generate instances that inherit properties and configurations from a predefined template. This approach is fundamental for efficient management of security and customization within a system. By using a template, users can establish a base environment that includes software configurations, network policies, and security features. When a new instance is created based on this template, it automatically inherits these properties, simplifying administration and ensuring consistency in the working environment. Additionally, any changes made to the template can be propagated to all instances that depend on it, facilitating updates and maintenance. This method not only optimizes resource usage but also allows users to experiment with different configurations without compromising the stability of the main system. In summary, the template-based approach is a powerful tool that enhances the flexibility and security of the system, enabling users to manage multiple environments effectively and securely.