Cloud Behavioral Divergence Guide: Where AWS, Azure, and GCP Actually Differ

February 22, 2026

Multi-Cloud-Operations, Cloud-Migration-Planning, Infrastructure-Debugging, Cross-Cloud-Translation

Aws, Azure, Gcp, Multi-Cloud, Iam, Irsa, Workload-Identity, Managed-Identity, Vpc, Vnet, Networking, Storage, Ebs, Csi-Drivers, Rds, Cloud-Sql, Azure-Sql, Dns, Load-Balancers, Behavioral-Divergence

Aws-Cli, Gcloud, Az-Cli, Kubectl, Terraform

Cloud Behavioral Divergence Guide#

Running the “same” workload on AWS, Azure, and GCP does not produce the same behavior. The Kubernetes API is portable, application containers are portable, and SQL queries are portable. Everything else – identity, networking, storage, load balancing, DNS, and managed service behavior – diverges in ways that matter for production reliability.

This guide documents the specific divergence points with practical examples. Use it when translating infrastructure from one cloud to another, when debugging behavior that differs between environments, or when assessing migration risk.

EKS IAM and Security

February 22, 2026

Kubernetes

Intermediate

Eks-Iam-Integration, Irsa-Configuration, Eks-Security-Hardening

Eks, Aws, Iam, Irsa, Pod-Identity, Security, Kms

Aws-Cli, Kubectl, Eksctl, Terraform

EKS IAM and Security#

EKS bridges two identity systems: AWS IAM and Kubernetes RBAC. Understanding how they connect is essential for both granting pods access to AWS services and controlling who can access the cluster.

IAM Roles for Service Accounts (IRSA)#

IRSA lets Kubernetes pods assume IAM roles without using node-level credentials. Each pod gets exactly the AWS permissions it needs, not the broad permissions attached to the node role.