79 lines
2.2 KiB
YAML
79 lines
2.2 KiB
YAML
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apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: restrict-pod-host-access
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annotations:
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policies.kyverno.io/title: Restrict host namespaces and hostPath (audit)
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policies.kyverno.io/category: Pod Security
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policies.kyverno.io/severity: medium
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policies.kyverno.io/description: >-
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Audit Pod Security restricted host access (hostNetwork, hostPID, hostIPC,
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hostPath). Complements deny-privileged; named exceptions for host agents.
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spec:
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validationFailureAction: Audit
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background: true
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rules:
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- name: deny-host-namespaces
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match:
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any:
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- resources:
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kinds:
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- Pod
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exclude:
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any:
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- resources:
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namespaces:
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- kube-system
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- kube-public
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- kube-node-lease
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- flux-system
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- flux-canary
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- kyverno
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- cert-manager
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- cilium-secrets
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- olm
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- operators
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- longhorn
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- openebs
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- intel-system
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- nfd
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validate:
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message: >-
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Pods must not set hostNetwork, hostPID, or hostIPC (PSS restricted).
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pattern:
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spec:
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=(hostNetwork): "false"
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=(hostPID): "false"
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=(hostIPC): "false"
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- name: deny-hostpath-volumes
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match:
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any:
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- resources:
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kinds:
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- Pod
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exclude:
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any:
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- resources:
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namespaces:
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- kube-system
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- kube-public
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- kube-node-lease
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- flux-system
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- flux-canary
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- kyverno
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- cert-manager
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- cilium-secrets
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- olm
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- operators
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- longhorn
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- openebs
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- intel-system
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- nfd
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validate:
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message: >-
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Pods must not use hostPath volumes (PSS restricted). Prefer emptyDir,
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PVC, or projected volumes.
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pattern:
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spec:
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=(volumes):
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- X(hostPath): "null"
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