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Policy Rule
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{
"properties": {
"displayName": "[Preview]: Kubernetes cluster pods and containers should only run with approved user and group IDs",
"policyType": "BuiltIn",
"mode": "Microsoft.Kubernetes.Data",
"description": "This policy controls the user, primary group, supplemental group and file system group IDs that pods and containers can use to run 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"
]
},
"runAsUserRule": {
"type": "String",
"metadata": {
"displayName": "[Preview]: Run as user rule",
"description": "The 'RunAsUser' rule that containers are allowed to run with."
},
"allowedValues": [
"MustRunAs",
"MustRunAsNonRoot",
"RunAsAny"
],
"defaultValue": "MustRunAsNonRoot"
},
"runAsUserRanges": {
"type": "Object",
"metadata": {
"displayName": "[Preview]: Allowed user ID ranges",
"description": "The user ID ranges that are allowed for containers to use.",
"schema": {
"type": "object",
"properties": {
"ranges": {
"type": "array",
"items": {
"type": "object",
"properties": {
"min": {
"type": "integer"
},
"max": {
"type": "integer"
}
},
"required": [
"min",
"max"
],
"additionalProperties": false
}
}
},
"required": [
"ranges"
],
"additionalProperties": false
}
},
"defaultValue": {
"ranges": [
]
}
},
"runAsGroupRule": {
"type": "String",
"metadata": {
"displayName": "[Preview]: Run as group rule",
"description": "The 'RunAsGroup' rule that containers are allowed to run with."
},
"allowedValues": [
"MustRunAs",
"MayRunAs",
"RunAsAny"
],
"defaultValue": "RunAsAny"
},
"runAsGroupRanges": {
"type": "Object",
"metadata": {
"displayName": "[Preview]: Allowed group ID ranges",
"description": "The group ID ranges that are allowed for containers to use.",
"schema": {
"type": "object",
"properties": {
"ranges": {
"type": "array",
"items": {
"type": "object",
"properties": {
"min": {
"type": "integer"
},
"max": {
"type": "integer"
}
},
"required": [
"min",
"max"
],
"additionalProperties": false
}
}
},
"required": [
"ranges"
],
"additionalProperties": false
}
},
"defaultValue": {
"ranges": [
]
}
},
"supplementalGroupsRule": {
"type": "String",
"metadata": {
"displayName": "[Preview]: Supplemental group rule",
"description": "The 'SupplementalGroups' rule that containers are allowed to run with."
},
"allowedValues": [
"MustRunAs",
"MayRunAs",
"RunAsAny"
],
"defaultValue": "RunAsAny"
},
"supplementalGroupsRanges": {
"type": "Object",
"metadata": {
"displayName": "[Preview]: Allowed supplemental group ID ranges",
"description": "The supplemental group ID ranges that are allowed for containers to use.",
"schema": {
"type": "object",
"properties": {
"ranges": {
"type": "array",
"items": {
"type": "object",
"properties": {
"min": {
"type": "integer"
},
"max": {
"type": "integer"
}
},
"required": [
"min",
"max"
],
"additionalProperties": false
}
}
},
"required": [
"ranges"
],
"additionalProperties": false
}
},
"defaultValue": {
"ranges": [
]
}
},
"fsGroupRule": {
"type": "String",
"metadata": {
"displayName": "[Preview]: File system group rule",
"description": "The 'FSGroup' rule that containers are allowed to run with."
},
"allowedValues": [
"MustRunAs",
"MayRunAs",
"RunAsAny"
],
"defaultValue": "RunAsAny"
},
"fsGroupRanges": {
"type": "Object",
"metadata": {
"displayName": "[Preview]: Allowed file system group ID ranges",
"description": "The file system group ranges that are allowed for pods to use.",
"schema": {
"type": "object",
"properties": {
"ranges": {
"type": "array",
"items": {
"type": "object",
"properties": {
"min": {
"type": "integer"
},
"max": {
"type": "integer"
}
},
"required": [
"min",
"max"
],
"additionalProperties": false
}
}
},
"required": [
"ranges"
],
"additionalProperties": false
}
},
"defaultValue": {
"ranges": [
]
}
}
},
"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/allowed-users-groups/template.yaml",
"constraint": "https://raw.githubusercontent.com/Azure/azure-policy/master/built-in-references/Kubernetes/allowed-users-groups/constraint.yaml",
"values": {
"runAsUser": {
"rule": "[parameters('runAsUserRule')]",
"ranges": "[parameters('runAsUserRanges').ranges]"
},
"runAsGroup": {
"rule": "[parameters('runAsGroupRule')]",
"ranges": "[parameters('runAsGroupRanges').ranges]"
},
"supplementalGroups": {
"rule": "[parameters('supplementalGroupsRule')]",
"ranges": "[parameters('supplementalGroupsRanges').ranges]"
},
"fsGroup": {
"rule": "[parameters('fsGroupRule')]",
"ranges": "[parameters('fsGroupRanges').ranges]"
},
"excludedNamespaces": "[parameters('excludedNamespaces')]"
}
}
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/f06ddb64-5fa3-4b77-b166-acb36f7f6042",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "f06ddb64-5fa3-4b77-b166-acb36f7f6042"
}
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