Understanding Terraform Data Sources and Why They Matter
Terraform data sources provide a way to query and reference existing resources in your AWS environment (or any provider) without creating new ones.
This is essential for automation and avoiding manual hardcoding, especially when resource IDs change frequently or you want to ensure you always use the latest available versions.
Unlike resources:
In this article, we’ll deploy an EC2 instance into an already existing VPC and subnet — without recreating or managing the network itself.
