January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Updating the Kubernetes version on EKS
When Kubernetes releases a new version, EKS will follow and provide the latest version of Kubernetes for the user in a timely manner. In previous examples, we've used Kubernetes version 1.10. As of December 2018, EKS also supports version 1.11. Let's perform the upgrade to see how EKS handles cluster updates.
The typical upgrade steps are as follows:
- Upgrade the Kubernetes master via the AWS CLI
- Create a new version of worker nodes via CloudFormation
- Add new worker nodes to the Kubernetes cluster (both old and new worker nodes co-exist at this time)
- Migrate pods from the old worker node to the new one
Mostly, the worker nodes upgrade requires some manual steps. We'll explore this step by step.
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