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34 lines
1.2 KiB
YAML
34 lines
1.2 KiB
YAML
# SPDX-FileCopyrightText: 2024 Bundesministerium des Innern und für Heimat, PG ZenDiS "Projektgruppe für Aufbau ZenDiS"
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# SPDX-License-Identifier: Apache-2.0
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---
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apiVersion: "kyverno.io/v1"
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kind: "ClusterPolicy"
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metadata:
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name: "disallow-host-namespaces"
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annotations:
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policies.kyverno.io/title: "Disallow Host Namespaces"
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policies.kyverno.io/subject: "Pod"
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policies.kyverno.io/description: >-
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Host namespaces (Process ID namespace, Inter-Process Communication namespace, and network namespace) allow access
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to shared information and can be used to elevate privileges.
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Pods should not be allowed access to host namespaces.
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This policy ensures fields which make use of these host namespaces are unset or set to `false`.
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spec:
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background: true
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rules:
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- name: "disallow-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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validate:
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message: >-
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Sharing the host namespaces is disallowed. The fields spec.hostNetwork,
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spec.hostIPC, and spec.hostPID must be unset or set to `false`.
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pattern:
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spec:
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=(hostPID): "false"
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=(hostIPC): "false"
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=(hostNetwork): "false"
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