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Policy Rule
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{
"properties": {
"displayName": "[Preview]: Kubernetes cluster containers should only use allowed capabilities",
"policyType": "BuiltIn",
"mode": "Microsoft.Kubernetes.Data",
"description": "This policy ensures containers only use allowed capabilities in a Kubernetes cluster. For instructions on using this policy, visit https://aka.ms/kubepolicydoc.",
"metadata": {
"version": "1.0.0-preview",
"category": "Kubernetes",
"preview": true
},
"parameters": {
"effect": {
"type": "String",
"metadata": {
"displayName": "[Preview]: Effect",
"description": "'Audit' allows a non-compliant resource to be created or updated, but flags it as non-compliant. 'Deny' blocks the non-compliant resource creation or update. 'Disabled' turns off the policy."
},
"allowedValues": [
"audit",
"deny",
"disabled"
],
"defaultValue": "audit"
},
"excludedNamespaces": {
"type": "Array",
"metadata": {
"displayName": "[Preview]: Namespace exclusions",
"description": "List of Kubernetes namespaces to exclude from policy evaluation."
},
"defaultValue": [
"kube-system",
"gatekeeper-system",
"azure-arc"
]
},
"allowedCapabilities": {
"type": "Array",
"metadata": {
"displayName": "[Preview]: Allowed capabilities",
"description": "The list of capabilities that are allowed to be added to a container. Provide empty list as input to block everything."
},
"defaultValue": [
]
},
"requiredDropCapabilities": {
"type": "Array",
"metadata": {
"displayName": "[Preview]: Required drop capabilities",
"description": "The list of capabilities that must be dropped by a container."
},
"defaultValue": [
]
}
},
"policyRule": {
"if": {
"field": "type",
"in": [
"AKS Engine",
"Microsoft.Kubernetes/connectedClusters",
"Microsoft.ContainerService/managedClusters"
]
},
"then": {
"effect": "[parameters('effect')]",
"details": {
"constraintTemplate": "https://raw.githubusercontent.com/Azure/azure-policy/master/built-in-references/Kubernetes/container-allowed-capabilities/template.yaml",
"constraint": "https://raw.githubusercontent.com/Azure/azure-policy/master/built-in-references/Kubernetes/container-allowed-capabilities/constraint.yaml",
"values": {
"allowedCapabilities": "[parameters('allowedCapabilities')]",
"requiredDropCapabilities": "[parameters('requiredDropCapabilities')]",
"excludedNamespaces": "[parameters('excludedNamespaces')]"
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/c26596ff-4d70-4e6a-9a30-c2506bd2f80c",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "c26596ff-4d70-4e6a-9a30-c2506bd2f80c"
}
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