eks

Co-author @coangha21 Table of Contents In-place and blue/green upgrade strategies Upgrade cluster process Prerequisite Update manifests Bootstrap new cluster Re-deploy add-ons and third-party tools with compatible version Re-deploy workloads Verify workloads DNS switchover Stateful workloads migration Conclusion IntroductionUpgrading your Amazon EKS cluster version is necessary for security, performance optimization, new features, and long-term support. Nowadays, Amazon EKS introduces extended support plan for Kubernetes version that will cost you remarkably. The upgrade is never a easy game and can feel like a business continuity nightmare. Some may feel tempted to postpone the inevitable. In this blog, we will walk you through…

Kubernetes is a powerful open-source platform for automating the deployment, scaling, and management of containerized applications. This article provides a concise overview of Kubernetes, focusing on its essential components for operators managing containerized applications and AWS EKS. Control Plane The control plane is the central management entity of the Kubernetes cluster. It oversees the cluster's operations, maintains the desired state of the cluster, and responds to changes and events. Components API Server: Exposes the Kubernetes API and serves as the front end for the control plane. Scheduler: Assigns pods to nodes based on resource requirements, constraints, and policies. Controller Manager:…

Mitigating disruption during Amazon EKS cluster upgrade with blue/green deployment

Kubernetes – An Operator Overview