I tried to reproduce your issue but I was able to upgrade AKS and the nodes from Azure portal successfully. Fixed an issue where deploying AKS clusters using ARM templates without a defined Service Principal would incorrectly pass validation. The question of how to upgrade Kubernetes running in an Azure AKS cluster came up a few times both offline and online, thus I wanted to put a short post together on this topic. We noticed during the AKS update, one of the nodes became in a not ready state. Upgrade any cluster running a significant number of pods. Error: Operation is not allowed while cluster is being upgrading or failed in upgrade. GitHub is where the world builds software. Try to upgrade to available version >> az aks upgrade -n am26-labstack -g am26-kube -k 1.8.2 Kubernetes may be unavailable during cluster upgrades. Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services. My cluster seems have failed to upgrade from 1.8.7 to 1.9.2, and while the cluster now shows itself in a 'Failed' ProvisioningState, I can still access applications running on the cluster. When looking into the AKS properties, I see there is a provisioning state of "Failed": We don't know how to troubleshoot this problem. As you shared that the nodes are in healthy state but the AKS service is in failed state, at this point I would suggest redeploying or recreating the AKS cluster. "az aks update --resource-group TLP --name timekube --api-server-authorized-ip-ranges "77.221.xxx.xxx/29" However, this time around I was able to delete the subnet, and then rerun #3 with success. I've redacted any details pointing to my subscription for obvious reasons, and in its place you will see "redacted" instead of the subscription-specific values of my cmds One of the great benefits of Azure VMs is the ability to change the size of your VM based on the needs for CPU, Network or disk performance. 3. Thank you for sharing the update and the associated details. Details: Changing property 'linuxProfile.ssh.publicKeys.keyData' is not allowed. Failed to save container service 'test-aks'. Pods were unable to start, and part of the application became unavailable. (y/n): y Operation failed with status: 'Bad Request'. Make sure that you're in the cloned azure-voting-app-redis directory. Are you sure you want to perform this operation? The upgrade should wait for all scheduled pods to be ready before continuing. In this blog post I will outline the process of changing the size of a virtual machine using either Azure Classic Compute VMs or the newer Azure Resource Manager VMs. During AKS upgrades we experience outages because the upgrade continues to the next node before all scheduled pods are in a ready state. If you need to install or upgrade, see Install Azure CLI. The sample application source code can then be found inside the azure-vote directory. The other day we were trying to update our Azure Kubernetes Service (AKS) cluster with some new settings. Preview Features Azure Standard load balancer support is now in public preview. Update an application. As far as I understand in order to route traffic correctly in the virtual network, I need the subnet to be explicitly available in the subnets page. Fixed an issue that could result in a failed service principal update and AKS cluster creation. Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and … You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number. Let's make a change to the sample application, then update the version already deployed to your AKS cluster. To aks upgrade failed sample application, then update the version already deployed to your AKS cluster.! 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