All 7 Amazon EKS (Elastic Kubernetes Service) questions
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How does EKS integrate with IAM for authentication and authorization within a Kubernetes cluster?

Intermediate

Answer

EKS integrates with IAM through a feature that maps IAM users and roles to Kubernetes role based access control permissions, and more recently through IAM Roles for Service Accounts, which lets individual Kubernetes pods assume specific IAM roles, giving each application running in the cluster only the exact AWS permissions it needs rather than sharing broad node level permissions.
eksctl create iamserviceaccount --name my-service-account --cluster my-cluster --attach-policy-arn arn:aws:iam::aws:policy/AmazonS3ReadOnlyAccess --approve
Real-world example A microservice running inside an EKS pod needs read only access to an S3 bucket, so the team assigns it a dedicated IAM role through IAM Roles for Service Accounts, ensuring other pods in the same cluster cannot access that bucket.

Common follow-ups: What is the difference between node level IAM permissions and IAM Roles for Service Accounts?;How does Kubernetes role based access control work alongside IAM?

IAM;S3 & Storage
All 7 Amazon EKS (Elastic Kubernetes Service) questions