Description: A variable group refers to a collection of variables that can be used together to define and manage resources in infrastructure as code. These variables allow developers and operations teams to group related configurations, facilitating reuse and organization of code. By grouping variables, the management of complex configurations can be simplified, as they can be referenced together rather than individually. This not only improves code readability but also allows for better collaboration among team members, as everyone can quickly understand how the variables relate to each other. Additionally, using variable groups can help prevent errors by ensuring that configurations are applied consistently across different environments, such as development, testing, and production. In summary, variable groups are an essential tool in modern infrastructure management for optimizing resource management and improving software development efficiency.