api-usage.yaml

apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: api-usage
  namespace: openshift-kube-apiserver
spec:
  groups:
    - name: pre-release-lifecycle
      rules:
        - alert: APIRemovedInNextReleaseInUse
          annotations:
            summary: Deprecated API that will be removed in the next version is being used.
            description: >-
              Deprecated API that will be removed in the next version is being used. Removing the workload that is using
              the {{ $labels.group }}.{{ $labels.version }}/{{ $labels.resource }} API might be necessary for
              a successful upgrade to the next cluster version.
              Refer to `oc get apirequestcounts {{ $labels.resource }}.{{ $labels.version }}.{{ $labels.group }} -o yaml` to identify the workload.
          expr: |
            group(apiserver_requested_deprecated_apis{removed_release="1.26"}) by (group,version,resource) and (sum by(group,version,resource) (rate(apiserver_request_total{system_client!="kube-controller-manager",system_client!="cluster-policy-controller"}[4h]))) > 0
          for: 1h
          labels:
            namespace: openshift-kube-apiserver
            severity: info
        - alert: APIRemovedInNextEUSReleaseInUse
          annotations:
            summary: Deprecated API that will be removed in the next EUS version is being used.
            description: >-
              Deprecated API that will be removed in the next EUS version is being used. Removing the workload that is using
              the {{ $labels.group }}.{{ $labels.version }}/{{ $labels.resource }} API might be necessary for
              a successful upgrade to the next EUS cluster version.
              Refer to `oc get apirequestcounts {{ $labels.resource }}.{{ $labels.version }}.{{ $labels.group }} -o yaml` to identify the workload.
          expr: |
            group(apiserver_requested_deprecated_apis{removed_release=~"1\\.2[67]"}) by (group,version,resource) and (sum by(group,version,resource) (rate(apiserver_request_total{system_client!="kube-controller-manager",system_client!="cluster-policy-controller"}[4h]))) > 0

          for: 1h
          labels:
            namespace: openshift-kube-apiserver
            severity: info