output/20260723_081532/govviz/ALZ_20260723_081601/Enterprise-Scale/src/resources/Microsoft.Authorization/policyDefinitions/Deny-VNET-Peer-Cross-Sub.json
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{ "name": "Deny-VNET-Peer-Cross-Sub", "type": "Microsoft.Authorization/policyDefinitions", "apiVersion": "2021-06-01", "scope": null, "properties": { "policyType": "Custom", "mode": "All", "displayName": "Deny vNet peering cross subscription.", "description": "This policy denies the creation of vNet Peerings outside of the same subscriptions under the assigned scope.", "metadata": { "version": "1.1.0", "category": "Network", "source": "https://github.com/Azure/Enterprise-Scale/", "alzCloudEnvironments": [ "AzureCloud", "AzureChinaCloud", "AzureUSGovernment" ] }, "parameters": { "effect": { "type": "String", "metadata": { "displayName": "Effect", "description": "Enable or disable the execution of the policy" }, "allowedValues": [ "Audit", "Deny", "Disabled" ], "defaultValue": "Deny" }, "allowedVnets": { "type": "Array", "metadata": { "displayName": "Allowed vNets to peer with", "description": "Array of allowed vNets that can be peered with. Must be entered using their resource ID. Example: /subscriptions/{subId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/virtualNetworks/{vnetName}" }, "defaultValue": [] } }, "policyRule": { "if": { "allOf": [ { "field": "type", "equals": "Microsoft.Network/virtualNetworks/virtualNetworkPeerings" }, { "allOf": [ { "field": "Microsoft.Network/virtualNetworks/virtualNetworkPeerings/remoteVirtualNetwork.id", "notIn": "[[parameters('allowedVnets')]" }, { "field": "Microsoft.Network/virtualNetworks/virtualNetworkPeerings/remoteVirtualNetwork.id", "notLike": "[[concat(subscription().id, '/*')]" } ] } ] }, "then": { "effect": "[[parameters('effect')]" } } } } |