apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: deny-privileged
  annotations:
    policies.kyverno.io/title: Deny privileged containers
    policies.kyverno.io/category: Pod Security
    policies.kyverno.io/severity: high
    policies.kyverno.io/description: >-
      Flag containers with privileged: true. Host storage exporters should use
      narrow capabilities instead of full privileged where possible.
spec:
  validationFailureAction: Enforce
  background: true
  rules:
    - name: deny-privileged-containers
      match:
        any:
          - resources:
              kinds:
                - Pod
      exclude:
        any:
          - resources:
              namespaces:
                - kube-system
                - kube-public
                - kube-node-lease
                - flux-system
                - flux-canary
                - kyverno
                - cert-manager
                - cilium-secrets
                - olm
                - operators
                - longhorn
                - openebs
                - intel-system
                - nfd
      validate:
        message: >-
          Containers must not set privileged: true. Prefer drop ALL plus the
          minimal capabilities and hostPaths required for the workload.
        foreach:
          - list: "request.object.spec.[initContainers, ephemeralContainers, containers][]"
            deny:
              conditions:
                any:
                  - key: "{{ element.securityContext.privileged || false }}"
                    operator: Equals
                    value: true