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7b31f456c9
* Implement validationFailureActionByPolicy * Update README.md * Add artifacthub.io/changes entry * Add Test Case Signed-off-by: dschunack <dschunack@web.de>
56 lines
2.2 KiB
YAML
56 lines
2.2 KiB
YAML
{{- $name := "disallow-host-namespaces" }}
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{{- if eq (include "kyverno-policies.podSecurityBaseline" (merge (dict "name" $name) .)) "true" }}
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apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: {{ $name }}
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annotations:
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policies.kyverno.io/title: Disallow Host Namespaces
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policies.kyverno.io/category: Pod Security Standards (Baseline)
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{{- if .Values.podSecuritySeverity }}
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policies.kyverno.io/severity: {{ .Values.podSecuritySeverity }}
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{{- end }}
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kyverno.io/kyverno-version: 1.6.0
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kyverno.io/kubernetes-version: "1.22-1.23"
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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
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network namespace) allow access to shared information and can be used to elevate
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privileges. Pods should not be allowed access to host namespaces. This policy ensures
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fields which make use of these host namespaces are unset or set to `false`.
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spec:
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{{- with index .Values "validationFailureActionByPolicy" $name }}
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validationFailureAction: {{ toYaml . }}
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{{- else }}
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validationFailureAction: {{ .Values.validationFailureAction }}
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{{- end }}
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{{- with concat (index .Values "validationFailureActionOverrides" "all") (default list (index .Values "validationFailureActionOverrides" $name)) }}
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validationFailureActionOverrides: {{ toYaml . | nindent 4 }}
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{{- end }}
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background: {{ .Values.background }}
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failurePolicy: {{ .Values.failurePolicy }}
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rules:
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- name: 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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{{- with index .Values "policyExclude" $name }}
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exclude:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with index .Values "policyPreconditions" $name }}
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preconditions:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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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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{{- end }}
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