Learn practical tips and optimization techniques for managing EKS with Terraform in this 15-minute Japanese language conference talk. Discover insights gained from four years of hands-on experience using EKS workloads with Terraform as an Infrastructure as Code tool. Explore best practices for separating Terraform root modules when provisioning EKS clusters and deploying Kubernetes resources, including detailed explanations of why this separation is recommended according to official Terraform Kubernetes provider documentation. Understand the rationale behind choosing not to separate root modules in certain project scenarios and examine how EKS updates can increase operational complexity when working with unified modules.