ENFORCE-GuardrailsAppServicesPolicyAssignment.json

{
    "$schema": "https://schema.management.azure.com/schemas/2019-08-01/tenantDeploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "topLevelManagementGroupPrefix": {
            "type": "string",
            "metadata": {
                "description": "Provide the ESLZ company prefix to the intermediate root management group containing the policy definitions."
            }
        },
        "enforcementMode": {
            "type": "string",
            "allowedValues": [
                "Default",
                "DoNotEnforce"
            ],
            "defaultValue": "Default"
        },
        "nonComplianceMessagePlaceholder": {
            "type": "string",
            "defaultValue": "{enforcementMode}"
        },
        "assignmentIndex": {
            "type": "int",
            "defaultValue": 0
        }
    },
    "variables": {
        "policyDefinitions": {
            "enforceGuardrailsAppServices": "[concat('/providers/Microsoft.Management/managementGroups/', parameters('topLevelManagementGroupPrefix'), '/providers/Microsoft.Authorization/policySetDefinitions/Enforce-Guardrails-AppServices')]"
        },
        "policyAssignmentNames": {
            "enforceGuardrailsAppServices": "[concat('Enforce-GR-AppServices', parameters('assignmentIndex'))]",
            "description": "This initiative assignment enables additional ALZ guardrails for App Services.",
            "displayName": "Enforce recommended guardrails for App Services"
        },
        "nonComplianceMessage": {
            "message": "Recommended guardrails {enforcementMode} be enforced for App Services.",
            "Default": "must",
            "DoNotEnforce": "should"
        },
        "rbacContributor": "b24988ac-6180-42a0-ab88-20f7382dd24c",
        "roleAssignmentNames": {
            "deployRoles": "[guid(concat(parameters('toplevelManagementGroupPrefix'),variables('policyAssignmentNames').enforceGuardrailsAppServices))]"
        }
    },
    "resources": [
        {
            "type": "Microsoft.Authorization/policyAssignments",
            "apiVersion": "2022-06-01",
            "name": "[variables('policyAssignmentNames').enforceGuardrailsAppServices]",
            "location": "[deployment().location]",
            "identity": {
                "type": "SystemAssigned"
            },
            "properties": {
                "description": "[variables('policyAssignmentNames').description]",
                "displayName": "[variables('policyAssignmentNames').displayName]",
                "policyDefinitionId": "[variables('policyDefinitions').enforceGuardrailsAppServices]",
                "enforcementMode": "[parameters('enforcementMode')]",
                "nonComplianceMessages": [
                    {
                        "message": "[replace(variables('nonComplianceMessage').message, parameters('nonComplianceMessagePlaceholder'), variables('nonComplianceMessage')[parameters('enforcementMode')])]"
                    }
                ]
            }
        },
        {
            "type": "Microsoft.Authorization/roleAssignments",
            "apiVersion": "2019-04-01-preview",
            "name": "[variables('roleAssignmentNames').deployRoles]",
            "dependsOn": [
                "[resourceId('Microsoft.Authorization/policyAssignments', variables('policyAssignmentNames').enforceGuardrailsAppServices)]"
            ],
            "properties": {
                "principalType": "ServicePrincipal",
                "roleDefinitionId": "[concat('/providers/Microsoft.Authorization/roleDefinitions/', variables('rbacContributor'))]",
                "principalId": "[toLower(reference(concat('/providers/Microsoft.Authorization/policyAssignments/', variables('policyAssignmentNames').enforceGuardrailsAppServices), '2019-09-01', 'Full' ).identity.principalId)]"
            }
        }
    ],
    "outputs": {}
}