apiVersion: monitoring.openshift.io/v1
kind: AlertingRule
metadata:
  name: image-registry-storage-readonly
  namespace: openshift-monitoring
spec:
  groups:
  - name: image-registry-rules
    rules:
    - alert: ReadOnlyStorageAlert
      for: 1m
      expr: imageregistry_storage_errors_total {code="READ_ONLY_FILESYSTEM"}
      labels:
        severity: critical
      annotations:
        message: The image registry storage is read-only - no images will be committed to storage.