Welcome to the Intermediate Tier. The true advantage of using a general-purpose programming language for IaC is access to native control flow. In this episode, we will dynamically generate Subnets and Security Group rules using native array mapping and conditional logic based on environment flags.
While ‘count’ and ‘for_each’ duplicate entire resources, ‘dynamic’ blocks duplicate nested configurations inside a single resource. Discover how to build highly flexible, list-driven Security Groups and Route Tables without repeating HCL blocks.
Copy-pasting resource blocks is a cardinal sin in Platform Engineering. In this episode, we will deploy identical infrastructure fleets using loops. You will learn the critical differences between ‘count’ and ‘for_each’, and why ‘count’ can accidentally destroy your production servers if used incorrectly.
Unlike languages with while, do-while, and foreach, Go has only ONE keyword for looping: for. This design eliminates syntax complexity while maintaining complete control over iteration.
