Upgrading the Cluster
Understand the process of upgrading AWS EKS clusters using Terraform by modifying version variables and applying rolling updates. This lesson guides you through safely updating Kubernetes versions and AMI releases while maintaining cluster availability and minimizing downtime.
We'll cover the following...
Current Kubernetes version
Changing any aspect of the resources we created is easy and straightforward. All we have to do is modify Terraform definitions and apply the changes. We can add resources, remove them, or change them in any way we want. To illustrate that, we’ll upgrade the Kubernetes version.
But before we do that, let’s see which version we’re running right now.
The output, limited to the relevant parts, is as follows.
Updating Kubernetes version environment variables
We’re currently running Kubernetes version v1.15.11-eks-f459c0.
Note: Yours might be different depending on what you have installed.
To upgrade the version, we need to find what newer versions are available.
Open this link to ...