upgrade

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

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

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…
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