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42 lines
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910 B
Markdown
42 lines
No EOL
910 B
Markdown
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# Disallow `hostNetwork` and `hostPort`
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Using `hostPort` and `hostNetwork` allows pods to share the host networking stack allowing potential snooping of network traffic across application pods.
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## Policy YAML
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[disallow_host_network_port.yaml](best_practices/disallow_host_network_port.yaml)
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````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: disallow-host-network-port
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spec:
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rules:
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- name: validate-host-network
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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: "Use of hostNetwork is not allowed"
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pattern:
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spec:
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=(hostNetwork): false
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- name: validate-host-port
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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: "Use of hostPort is not allowed"
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pattern:
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spec:
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containers:
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- name: "*"
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=(ports):
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- X(hostPort): null
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```` |