kyverno/test/best_practices/require_pod_requests_limits.yaml

---
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  annotations:
    policies.kyverno.io/category: Workload Management
    policies.kyverno.io/description: As application workloads share cluster resources,
      it is important to limit resources requested and consumed by each pod. It is
      recommended to require 'resources.requests' and 'resources.limits.memory' per
      pod. If a namespace level request or limit is specified, defaults will automatically
      be applied to each pod based on the 'LimitRange' configuration.
  name: require-pod-requests-limits
spec:
  admission: true
  background: true
  rules:
  - match:
      any:
      - resources:
          kinds:
          - Pod
    name: validate-resources
    validate:
      message: CPU and memory resource requests and limits are required
      pattern:
        spec:
          containers:
          - resources:
              limits:
                memory: ?*
              requests:
                cpu: ?*
                memory: ?*
  validationFailureAction: Audit