kyverno/samples/best_practices/add_ns_quota.yaml

apiVersion: kyverno.io/v1alpha1
kind: ClusterPolicy
metadata:
  name: add-ns-quota
  annotations:
    policies.kyverno.io/category: Workload Isolation
    policies.kyverno.io/description: To limit the number of objects, as well as the 
      total amount of compute that may be consumed by a single namespace, create 
      a default resource quota for each namespace.
spec:
  rules:
  - name: generate-resourcequota
    match:
      resources:
        kinds:
        - Namespace
    generate:
      kind: ResourceQuota
      name: "default-resourcequota"
      data:
        spec:
          hard:
            requests.cpu: '4'
            requests.memory: '16Gi'
            limits.cpu: '4'
            limits.memory: '16Gi'