Discarded Kubernetes APIs

Check Items

The system scans the audit logs of the past day to check whether the user calls the deprecated APIs of the target Kubernetes version.

Due to the limited time range of audit logs, this check item is only an auxiliary method. APIs to be deprecated may have been used in the cluster, but their usage is not included in the audit logs of the past day. Check the API usage carefully.

Solution

Check Description

Based on the check result, it is detected that your cluster calls a deprecated API of the target cluster version using kubectl or other applications. You can rectify the fault before the upgrade. Otherwise, the API will be intercepted by kube-apiserver after the upgrade. For details about each deprecated API, see Deprecated APIs.

Case Study

Ingresses of the extensions/v1beta1 and networking.k8s.io/v1beta1 APIs are deprecated in Kubernetes v1.22. If you upgrade a cluster from v1.19 or v1.21 to v1.23, existing resources are not affected, but the v1beta1 API may be intercepted in the creation and editing scenarios.

For details about the YAML configuration structure changes, see Using kubectl to Create a LoadBalancer Ingress.