Description: A template variable is a placeholder in a template that can be replaced with actual values. These variables are fundamental in programming and automation, as they allow for the creation of dynamic and customizable configurations. In the context of various programming and automation tools, template variables facilitate infrastructure and application management by enabling users to define configurations that can adapt to different environments or needs. For example, in an infrastructure-as-code template, a template variable might represent the name of a resource, the number of instances, or network configuration. This not only enhances code reuse but also reduces the likelihood of errors by allowing values to be defined in one place and used in multiple instances. Template variables are especially useful in agile development environments, where requirements can change rapidly, and an efficient way to adjust configurations is needed without rewriting the base code.
