Content Comparison

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Check for Available AKS Cluster Upgrade

1. Navigate to Azure Portal:

   • Go to the Azure portal and search for Kubernetes services.

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2. Check Current AKS Version:

   • Click on the Upgrade version option for the client you are upgrading to view the current AKS version.

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Note:

When upgrading a supported AKS cluster, you can't skip Kubernetes minor versions. You must perform all upgrades sequentially by major version number. For example:

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• Upgrades from an unsupported 1.10.x to a supported 1.12.x are allowed if available.

version. For example, you can perform an upgrade from an unsupported 1.10.x to a supported 1.12.x if available.

Upgrade an AKS Cluster

Back-Up and Delete PDB Policy:

To upgrade the AKS cluster, you must have contributor access to your user.

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Check PDBs:
kubectl get pdb -A

Upgrade AKS Cluster:

Execute the following command to upgrade the AKS cluster:

az aks upgrade --resource-group <myResourceGroup> --name <myAKSCluster> --kubernetes-version <KUBERNETES_VERSION>

Example:
az aks upgrade --resource-group stinsco1-ResGroup --name stinsco1-akscluster1-eastus --kubernetes-version 1.28.9

Restore PDB Policy:

Restore PDBs:
kubectl apply -f backup.yaml

Check PDBs:
kubectl get pdb -A

Confirm Upgrade:

To confirm the successful upgrade, recheck the cluster configuration:
az aks show --resource-group <myResourceGroup> --name <myAKSCluster> --query kubernetesVersion

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