EKS cluster upgrade from 1.28 to 1.29

Hi

Before Upgrade try to verify following:

• Check the Version release file to check features which may affect your applications, Github release file and
• Take a **backup **of your cluster configuration and any stateful data before proceeding.

Once you upgrade a cluster, you can't downgrade to a previous version. We recommend that, before you update to a new Kubernetes version, you review the information in Amazon EKS Kubernetes versions and also review in the update steps in this topic.

Upgrade :

Control Plane:

• you can use console or CLI or any IaC tool to upgrade the cluster, reference documentation

Worker Nodes: Managed Node Groups:

• Create new Node group with AMI
• AMI optimized with latest changes information is https://github.com/awslabs/amazon-eks-ami/releases
• Update node group: Change the configuration of your node group to use the new AMI you found.
• Update nodes gradually, not all at once, to avoid downtime.

Self-Managed Nodes: Upgrade packages: Use your operating system's tools (like apt-get or yum) to install the Kubernetes 1.29 packages. Drain and cordon: For each old node, temporarily block new pods from being scheduled and move existing pods away. Delete old nodes: Once empty

Fargate: No action needed: Fargate handles the upgrades for you automatically.