EventGrid Topic /Event Grid Subscription ARM Template Error

Question

I have written a ARM Template script that should deploy a Event Grid Topic and then Event Grid Subscription with endpoint to an azure function. but when you running you get the following error. what am I doing wrong

New-AzSubscriptionDeployment : 3:09:54 PM - Error: Code=InvalidScope; Message=The request contains resources that must be deployed at a resource group scope but a different scope was found. Make sure to specify a resource group scope similar to:

'/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}'

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {},
  "variables": {
    "eventGridTopicName": "azuredevops-eventgridtopic",
    "eventGridSubscriptionName": "azuredevops-autotag",
    "location": "eastus",
   "eventGridSubscriptionUrl": "AzureFUnctionRUL"
  },
  "resources": [
    {
      "type": "Microsoft.EventGrid/topics",
      "apiVersion": "2023-12-15-preview",
      "name": "[variables('eventGridTopicName')]",
      "location": "[variables('location')]",
      "properties": {
                //"source": "/subscriptions/8cb88380-d13a-4940-8e6b-41f90c93a847",
                "inputSchema": "EventGridSchema"
                //"topicType": "Microsoft.Resources.Subscriptions"
            }
    },

   {
      "type": "Microsoft.EventGrid/eventSubscriptions",
      "apiVersion": "2020-06-01",
      "scope": "[format('Microsoft.EventGrid/topics/{0}', variables('eventGridTopicName'))]",
      "name": "[variables('eventGridSubscriptionName')]",
      "properties": {
        "destination": {
          "endpointType": "AzureFunction",
          "properties": {
            "endpointUrl": "[variables('eventGridSubscriptionUrl')]"
          },
          "filter": {
              "includedEventTypes": [ "Microsoft.Resources.ResourceWriteSuccess" ],
              "enableAdvancedFilteringOnArrays": false
      }
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.EventGrid/topics', variables('eventGridTopicName'))]"
      ]
    }
  
  ]
}

Answer

Hi @Riaz Ansary Greetings! Thank you for posting this question here.

As the error message indicates, the ARM template should deploy the resources at the resource group level. However, looks like template is not formatted to target the resource group. When deploying to a subscription, there are different template formats you can follow to deploy resources to:

the target subscription from the operation
any subscription in the tenant
resource groups within the subscription or other subscriptions
the tenant for the subscription

To deploy resources to a resource group within the subscription, add a nested deployment and include the resourceGroup property. In the following example, the nested deployment targets a resource group named demoResourceGroup.

{
  "$schema": "https://schema.management.azure.com/schemas/2018-05-01/subscriptionDeploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "resources": [
    {
      "type": "Microsoft.Resources/deployments",
      "apiVersion": "2021-04-01",
      "name": "nestedDeployment",
      "resourceGroup": "demoResourceGroup",
      "properties": {
        "mode": "Incremental",
        "template": {
          resource-group-resources
        }
      }
    }
  ],
  "outputs": {}
}

Please refer the sample provided in the article section Create resource group and resources to deploy resources to a resource group using a nested template.

Hope this helps! Please let us know if you have any additional questions or need further clarification.

If the response helped, please do click Accept Answer and Yes for the answer provided. Doing so would help other community members with similar issue identify the solution. I highly appreciate your contribution to the community.

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EventGrid Topic /Event Grid Subscription ARM Template Error

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