| JSON |
{
"properties": {
"displayName": "Kubernetes cluster containers should only use allowed images",
"policyType": "BuiltIn",
"mode": "Microsoft.Kubernetes.Data",
"description": "Use images from trusted registries to reduce the Kubernetes cluster's exposure risk to unknown vulnerabilities, security issues and malicious images. This policy is generally available for Kubernetes Service (AKS), and preview for AKS Engine and Azure Arc enabled Kubernetes. For more information, see https://aka.ms/kubepolicydoc.",
"metadata": {
"version": "6.1.0",
"category": "Kubernetes"
},
"parameters": {
"effect": {
"type": "String",
"metadata": {
"displayName": "Effect",
"description": "'Audit' allows a non-compliant resource to be created, but flags it as non-compliant. 'Deny' blocks the resource creation. 'Disable' turns off the policy."
},
"allowedValues": [
"audit",
"deny",
"disabled"
],
"defaultValue": "deny"
},
"excludedNamespaces": {
"type": "Array",
"metadata": {
"displayName": "Namespace exclusions",
"description": "List of Kubernetes namespaces to exclude from policy evaluation."
},
"defaultValue": [
"kube-system",
"gatekeeper-system",
"azure-arc"
]
},
"namespaces": {
"type": "Array",
"metadata": {
"displayName": "Namespace inclusions",
"description": "List of Kubernetes namespaces to only include in policy evaluation. An empty list means the policy is applied to all resources in all namespaces."
},
"defaultValue": [
]
},
"labelSelector": {
"type": "Object",
"metadata": {
"displayName": "Kubernetes label selector",
"description": "Label query to select Kubernetes resources for policy evaluation. An empty label selector matches all Kubernetes resources."
},
"defaultValue": {
}
},
"allowedContainerImagesRegex": {
"type": "String",
"metadata": {
"displayName": "Allowed container images regex",
"description": "The RegEx rule used to match allowed container images in a Kubernetes cluster. For example, to allow any Azure Container Registry image by matching partial path: ^.+azurecr.io/.+$"
}
}
},
"policyRule": {
"if": {
"field": "type",
"in": [
"AKS Engine",
"Microsoft.Kubernetes/connectedClusters",
"Microsoft.ContainerService/managedClusters"
]
},
"then": {
"effect": "[parameters('effect')]",
"details": {
"constraintTemplate": "https://store.policy.core.windows.net/kubernetes/container-allowed-images/v1/template.yaml",
"constraint": "https://store.policy.core.windows.net/kubernetes/container-allowed-images/v1/constraint.yaml",
"excludedNamespaces": "[parameters('excludedNamespaces')]",
"namespaces": "[parameters('namespaces')]",
"labelSelector": "[parameters('labelSelector')]",
"values": {
"allowedContainerImagesRegex": "[parameters('allowedContainerImagesRegex')]",
"imageRegex": "[parameters('allowedContainerImagesRegex')]"
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/febd0533-8e55-448f-b837-bd0e06f16469",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "febd0533-8e55-448f-b837-bd0e06f16469"
}
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