AWS Terraform Patterns: IAM, Networking, EKS, RDS, and Common Gotchas

Calendar February 22, 2026
Infrastructure
Intermediate
Aws-Terraform, Iam-Patterns, Eks-Setup, Rds-Configuration, Vpc-Networking
Terraform, Aws, Iam, Vpc, Eks, Rds, S3, Security-Groups, Irsa, Gotchas, Best-Practices
Terraform, Aws-Cli

AWS Terraform Patterns#

AWS is the most common Terraform target and the most complex. It has more services, more configuration options, and more subtle gotchas than Azure or GCP. This article covers the AWS-specific patterns that agents need to write correct, secure Terraform — with emphasis on the mistakes that cause real production issues.

IAM: The Foundation of Everything#

Every AWS resource that does anything needs IAM permissions. The two patterns agents must know: service roles (letting AWS services act on your behalf) and IRSA (letting Kubernetes pods assume IAM roles).