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30 lines
876 B
Markdown
30 lines
876 B
Markdown
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# Disallow `hostPID` and `hostIPC`
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Sharing the host's PID namespace allows visibility of process on the host, potentially exposing process information.
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Sharing the host's IPC namespace allows the container process to communicate with processes on the host. To avoid pod container from having visibility to host process space, validate that `hostPID` and `hostIPC` are set to `false`.
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## Policy YAML
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[disallow_hostpid_hostipc.yaml](best_practices/disallow_hostpid_hostipc.yaml)
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````yaml
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apiVersion: kyverno.io/v1alpha1
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kind: ClusterPolicy
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metadata:
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name: validate-hostpid-hostipc
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spec:
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rules:
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- name: validate-hostpid-hostipc
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match:
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resources:
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kinds:
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- Pod
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validate:
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message: "Disallow use of host's pid namespace and host's ipc namespace"
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pattern:
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spec:
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(hostPID): "!true"
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hostIPC: false
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````
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