Introduction One of the common tasks performed by DevOps Engineers is upgrade of their...
Introduction
One 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.
For instance, 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 with zero downtime.
Prerequisites:
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