kyverno/samples/best_practices/disallow_priviledged_priviligedescalation.yaml

apiVersion: kyverno.io/v1alpha1
kind: ClusterPolicy
metadata:
  name: validate-deny-privileged-priviligedescalation
  annotations:
    policies.kyverno.io/category: Security Context
    policies.kyverno.io/description: A container cannot run in privileged mode, and a process cannot gain more privileges than its parent process
spec:
  rules:
  - name: deny-privileged-priviligedescalation
    match:
      resources:
        kinds:
        - Pod
    validate:
      message: "Privileged mode is not allowed. Set allowPrivilegeEscalation and privileged to false"
      anyPattern:
      - spec:
          securityContext:
            allowPrivilegeEscalation: false
            privileged: false
      - spec:
          containers:
          - name: "*"
            securityContext:
              allowPrivilegeEscalation: false
              privileged: false