Upgrading Enterprise Kubernetes Clusters with Zero Downtime: A DevOps Guide
By
Constantine Ukah
Summary
This article provides a guide for DevOps Engineers on upgrading enterprise-grade Kubernetes clusters with zero downtime. It explains that Kubernetes releases new versions every 3 months and maintains support for the last 3 versions (e.g., v1.34, v1.33, v1.32), making regular upgrades a common operational task. The article focuses on understanding how to achieve this upgrade process without disrupting services.
Source
bskyUpgrading Enterprise Kubernetes Clusters with Zero Downtime: A DevOps Guidedev.toKey quotes
· 3 pulledOne of the common tasks performed by DevOps Engineers is upgrade of their organization's Kubernetes Cluster at least once every 3 months as Kubernetes release newer version while maintaining on the last 3 released versions.
If the newest version is v1.34, the supported versions would be v1.34, v1.33 & v1.32.
Hence, the need to understand how this upgrade process can be achieved
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