Clusters - Eksctl User Guide
Topics:

Clusters

This chapter covers creating and configuring EKS clusters using eksctl. It also includes add-ons and EKS Auto Mode.

Topics:

  • EKS Access Entries

    • Simplify Kubernetes RBAC management by replacing aws-auth ConfigMap with EKS access entries

    • Migrate existing IAM identity mappings from aws-auth ConfigMap to access entries

    • Configure cluster authentication modes and control cluster creator admin permissions

  • Default add-on updates

    • Keep clusters secure by updating default EKS add-ons on older clusters

  • Addons

    • Automate routine tasks for installing, updating, and removing add-ons.

    • Amazon EKS Add-ons include AWS add-ons, open source community add-ons, and marketplace add-ons.

  • EKS Auto Mode

    • Reduce operational overhead by letting AWS manage your EKS infrastructure

    • Configure custom node pools instead of default general-purpose and system pools

    • Convert existing EKS clusters to use Auto Mode

  • CloudWatch logging

    • Troubleshoot cluster issues by enabling logs for specific EKS control plane components

    • Configure log retention periods for EKS cluster logs

    • Modify existing cluster logging settings using eksctl commands

  • Cluster upgrades

    • Maintain security and stability by safely upgrading EKS control plane versions

    • Roll out upgrades across nodegroups by replacing old groups with new ones

    • Update default cluster add-ons

  • Creating and managing clusters

    • Start quickly with basic EKS clusters using default managed nodegroups

    • Create customized clusters using config files with specific configurations

    • Deploy clusters in existing VPCs with private networking and custom IAM policies

  • Customizing kubelet configuration

    • Prevent node resource starvation by configuring kubelet and system daemon reservations

    • Customize eviction thresholds for memory and filesystem availability

    • Enable or disable specific kubelet feature gates across node groups

  • Registering non-EKS clusters with EKS Connector

    • Centralize management of hybrid Kubernetes deployments through EKS Console

    • Configure IAM roles and permissions for external cluster access

    • Remove external clusters and cleanup associated AWS resources

  • EKS Fully-Private Cluster

    • Meet security requirements with fully-private EKS clusters having no outbound internet access

    • Configure private access to AWS services through VPC endpoints

    • Create and manage private nodegroups with explicit networking settings

  • Karpenter Support

    • Automate node provisioning

    • Create custom Karpenter provisioner configurations

    • Set up Karpenter with spot instance interruption handling

  • Enabling Access for Amazon EMR

    • Create IAM identity mapping between EMR and EKS cluster

  • EKS Fargate Support

    • Define custom Fargate profiles for pod scheduling

    • Manage Fargate profiles through creation and configuration updates

  • Non eksctl-created clusters

    • Standardize management of clusters created outside eksctl

    • Use eksctl commands on existing non-eksctl clusters

  • Support for Zonal Shift in EKS clusters

    • Improve application availability by enabling rapid zone failover capabilities

    • Configure zonal shift on new EKS cluster deployments

    • Enable zonal shift features on existing EKS clusters