kyverno/test/policy/deny/policy.yaml

---
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: path-canonicalize
spec:
  validationFailureAction: enforce
  background: false
  rules:
  - name: disallow-mount-containerd-sock
    match:
      resources:
        kinds:
        - Pod
    validate:
      foreach:
      - list: "request.object.spec.volumes[]"
        deny:
          conditions:
            any:
            - key: "{{ path_canonicalize(element.hostPath.path) }}"
              operator: Equals
              value: "/var/run/containerd/containerd.sock"
            - key: "{{ path_canonicalize(element.hostPath.path) }}"
              operator: Equals
              value: "/run/containerd/containerd.sock"
            - key: "{{ path_canonicalize(element.hostPath.path) }}"
              operator: Equals
              value: "\\var\\run\\containerd\\containerd.sock"