Description: A module input variable in Terraform is a mechanism that allows users to pass data to a specific module. These variables are fundamental for code modularity and reuse in infrastructure as code (IaC). By defining input variables, developers can parameterize their modules, meaning they can customize the module’s behavior without needing to modify its internal code. This not only improves code readability and maintainability but also facilitates collaboration among teams, as different users can use the same module with different configurations. Input variables can be of various types, including strings, numbers, lists, and maps, providing flexibility in how they can be used. Additionally, Terraform allows setting default values and validations for these variables, helping to prevent errors and ensuring that the provided data is correct. In summary, module input variables are a key feature of Terraform that enables the creation of more dynamic and adaptable infrastructure, promoting efficiency in the development and deployment of cloud solutions.
