Address PR feedback

content/en/examples/policy/restricted-psp.yaml

@@ -5,14 +5,11 @@ metadata:
   annotations:
     seccomp.security.alpha.kubernetes.io/allowedProfileNames: 'docker/default,runtime/default'
     apparmor.security.beta.kubernetes.io/allowedProfileNames: 'runtime/default'
-    seccomp.security.alpha.kubernetes.io/defaultProfileName:  'runtime/default'
     apparmor.security.beta.kubernetes.io/defaultProfileName:  'runtime/default'
 spec:
   privileged: false
   # Required to prevent escalations to root.
   allowPrivilegeEscalation: false
-  # This is redundant with non-root + disallow privilege escalation,
-  # but we can provide it for defense in depth.
   requiredDropCapabilities:
     - ALL
   # Allow core volume types.
@@ -22,9 +19,10 @@ spec:
     - 'projected'
     - 'secret'
     - 'downwardAPI'
-    # Assume that CSI drivers & persistentVolumes set up by the cluster admin are safe to use.
-    - 'persistentVolumeClaim'
+    # Assume that ephemeral CSI drivers & persistentVolumes set up by the cluster admin are safe to use.
     - 'csi'
+    - 'persistentVolumeClaim'
+    - 'ephemeral'
   hostNetwork: false
   hostIPC: false
   hostPID: false