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Policy Rule
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{
"properties": {
"displayName": "Audit usage of custom RBAC rules",
"policyType": "BuiltIn",
"mode": "All",
"description": "Audit built-in roles such as 'Owner, Contributer, Reader' instead of custom RBAC roles, which are error prone. Using custom roles is treated as an exception and requires a rigorous review and threat modeling",
"metadata": {
"version": "1.0.0",
"category": "General"
},
"parameters": {
"effect": {
"type": "String",
"metadata": {
"displayName": "Effect",
"description": "Enable or disable the execution of the policy"
},
"allowedValues": [
"Audit",
"Disabled"
],
"defaultValue": "Audit"
}
},
"policyRule": {
"if": {
"allOf": [
{
"field": "type",
"equals": "Microsoft.Authorization/roleDefinitions"
},
{
"field": "Microsoft.Authorization/roleDefinitions/type",
"equals": "CustomRole"
}
]
},
"then": {
"effect": "[parameters('effect')]"
}
}
},
"id": "/providers/Microsoft.Authorization/policyDefinitions/a451c1ef-c6ca-483d-87ed-f49761e3ffb5",
"type": "Microsoft.Authorization/policyDefinitions",
"name": "a451c1ef-c6ca-483d-87ed-f49761e3ffb5"
}
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