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32 lines
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765 B
Markdown
32 lines
No EOL
765 B
Markdown
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# Disallow `hostNetwork` and `hostPort`
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Using `hostPort` and `hostNetwork` allows pods to share the host network stack, allowing potential snooping of network traffic from an application pod.
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## Policy YAML
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[disallow_host_network_hostport.yaml](best_practices/disallow_host_network_hostport.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-host-network-hostport
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spec:
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rules:
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- name: validate-host-network-hostport
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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: "Defining hostNetwork and hostPort are not allowed."
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pattern:
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spec:
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(hostNetwork): false
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containers:
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- name: "*"
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ports:
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- hostPort: null
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```` |