AKS upgrade to v1.32 is blocked due to deprecation of flowcontrol.apiserver.k8s.io/v1beta3 (FlowSchema) and PriorityLevelConfiguration.

Products

• VMware Tanzu Application Platform

Issue/Introduction

TAP (Tanzu Application Platform) users might encounter the following waring when upgrading their AKS (Azure Kubernetes Service) to v1.32.

(ValidationError) Control Plane upgrade is blocked due to recent usage of a Kubernetes API deprecated in the specified version. Please refer to https://kubernetes.io/docs/reference/using-api/deprecation-guide to migrate the usage. AKS records the usage over the last 12 hours, so you may need to wait that long after migrating before this error stops. To bypass this error, set forceUpgrade in upgradeSettings.overrideSettings. Bypassing this error without migrating usage will result in the deprecated Kubernetes API calls failing. See details in https://aka.ms/aks/UpgradeAndDeprecatedAPIs. Usage details: 4 errors occurred:
        * usage has been detected on API flowcontrol.apiserver.k8s.io.flowschemas.v1beta3.watch, and was recently seen at: --- UTC, which will be removed in 1.32
        * usage has been detected on API flowcontrol.apiserver.k8s.io.prioritylevelconfigurations.v1beta3.list, and was recently seen at: --- UTC, which will be removed in 1.32
        * usage has been detected on API flowcontrol.apiserver.k8s.io.prioritylevelconfigurations.v1beta3.watch, and was recently seen at: --- UTC, which will be removed in 1.32
        * usage has been detected on API flowcontrol.apiserver.k8s.io.flowschemas.v1beta3.list, and was recently seen at: --- UTC, which will be removed in 1.32

Resolution

Simply users can ignore this warning and proceed with the AKS upgrade. 

Please engage with Tanzu support or Azure support team if any further clarification is needed.