Top 7 Trickiest Terraform Features
Master Terraform’s 7 most confusing features—from for_each & dynamic blocks to state pitfalls—with step-by-step fixes and pro tips.
| Feature | Confusion Level | Common Pitfalls | Scalr Advantage |
|---|---|---|---|
| For_each vs Count | High (20-25%) | Index shifting problem with count | Enhanced dependency visualization |
| Dynamic Blocks | Medium-High (15-20%) | Iterator scope, nesting limitations | Clear plan output for generated resources |
| Complex Expressions | Very High (30-40%) | Readability, maintainability | State explorer for debugging expressions |
| Module Design | High (25%) | Over-abstraction, tight coupling | Registry for discoverable, versioned modules |
| Locals vs Variables | Medium | Scope confusion, reference syntax | Policy engine for structure validation |
| Templatefile | Medium | Template syntax, variable passing | Plan-time template rendering inspection |
| Workspaces | Medium | Inappropriate use for environment separation | True environment isolation with access controls |