delete-app-service-alert.json

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "alertRuleName": {
            "defaultValue": "Resource Group - Delete app service",
            "type": "String"
        },
        "alertRuleDescription": {
            "defaultValue": "Trigger alert whenever an app service is deleted from the resource group.",
            "type": "String"
        },
        "resourceGroupResourceId": {
            "type": "String",
            "metadata": {
                "desscription": "The resource group of which the alert will attach to monitor for delete app service event."
            }
        }
    },
    "variables": {},
    "resources": [
        {
            "type": "microsoft.insights/activityLogAlerts",
            "apiVersion": "2020-10-01",
            "name": "[parameters('alertRuleName')]",
            "location": "Global",
            "properties": {
                "scopes": [
                    "[parameters('resourceGroupResourceId')]"
                ],
                "condition": {
                    "allOf": [
                        {
                            "field": "category",
                            "equals": "Administrative"
                        },
                        {
                            "field": "resourceType",
                            "equals": "microsoft.web/sites"
                        },
                        {
                            "field": "operationName",
                            "equals": "Microsoft.Web/sites/Delete"
                        },
                        {
                            "field": "level",
                            "containsAny": [
                                "informational"
                            ]
                        },
                        {
                            "field": "status",
                            "containsAny": [
                                "succeeded"
                            ]
                        }
                    ]
                },
                "actions": {
                    "actionGroups": []
                },
                "enabled": true,
                "description": "[parameters('alertRuleDescription')]"
            }
        }
    ]
}