ce7cb702218693d08ea6d83464d2457c9250027c

vendor/platform/kyverno/policies/restrict-pod-host-access.yaml

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+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: restrict-pod-host-access
+  annotations:
+    policies.kyverno.io/title: Restrict host namespaces and hostPath (audit)
+    policies.kyverno.io/category: Pod Security
+    policies.kyverno.io/severity: medium
+    policies.kyverno.io/description: >-
+      Audit Pod Security restricted host access (hostNetwork, hostPID, hostIPC,
+      hostPath). Complements deny-privileged; named exceptions for host agents.
+spec:
+  validationFailureAction: Audit
+  background: true
+  rules:
+    - name: deny-host-namespaces
+      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: >-
+          Pods must not set hostNetwork, hostPID, or hostIPC (PSS restricted).
+        pattern:
+          spec:
+            =(hostNetwork): "false"
+            =(hostPID): "false"
+            =(hostIPC): "false"
+    - name: deny-hostpath-volumes
+      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: >-
+          Pods must not use hostPath volumes (PSS restricted). Prefer emptyDir,
+          PVC, or projected volumes.
+        pattern:
+          spec:
+            =(volumes):
+              - X(hostPath): "null"