Terraform Functions, Expressions, Loops (Examples)

The native language of Terraform, called HCL, is a convenient and efficient tool that can be used to manipulate data through functions, expressions, and loops. Functions in HCL are used for various tasks such as type conversions, value combinations, selecting values, correcting values, getting date and time, hashing values, and advanced technical tasks. Expressions are the core of HCL and allow users to get a value from somewhere, calculate or evaluate it, and extend the logic of a component. Operators, conditional expressions, splat expressions, constraints, and loops are some notable/interesting expressions in HCL. Terraform also provides three types of loops: count, for_each, and for. These tools can help users automate their configurations and manage infrastructure more efficiently.