Module 5.1: Loops & Logic

This module covers the essential Terraform concepts.

Count is the simplest way to create multiple identical resources. It uses an index (count.index) to differentiate between them. Pro Tip: Use count for simple repetition of identical resources.

For_each is more powerful than count as it works with maps and sets. It allows you to create resources based on specific keys, which is safer for management. Pro Tip: Use for_each when resources need to be uniquely identifiable by a key.

Dynamic blocks allow you to generate repeated nested blocks within a resource (like security group rules) based on a list or map of data. Pro Tip: Dynamic blocks prevent enormous, repetitive resource definitions.