Configure CORS by using Azure Resource Manager template

Question

I'm trying to set CORS rule for my storage account as suggested here under Configure CORS by using Azure Resource Manager tools: https://docs.microsoft.com/en-us/azure/app-service-api/app-service-api-cors-consume-javascript

by adding property cors:

    "resources": [
    {
        "type": "Microsoft.Storage/storageAccounts",
        "sku": {
            "name": "Standard_RAGRS",
            "tier": "Standard"
        },
        "kind": "Storage",
        "name": "[parameters('storageAccounts_teststoragejkjk_name')]",
        "apiVersion": "2016-01-01",
        "location": "westus",
        "tags": {},
        "properties": {
            "cors": {"allowedOrigins": ["*"]}
        },
        "resources": [],
        "dependsOn": []
    }
]

Deployment returns succes and I can see Write StorageAccount operation under Activity Log in Azure Portal but Cors Rules aren't added anywhere and when i download template from Azure it doesn't have this "cors property".

I also tried manually adding Corse Rule (i need it only on my Blob) and automation scripts (including deployment.ps) still looks the same...

Any suggestion on how to configure Cors rule on blob storage using ARM templates?

Answer 1

As @JBA pointed out this now works via ARM templates.

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "resources": [
    {
      "type": "Microsoft.Storage/storageAccounts",
      "name": "storageAccountName",
      "apiVersion": "2018-02-01",
      "location": "northeurope",
      "kind": "StorageV2",
      "sku": {
        "name": "Standard_LRS",
        "tier": "Standard"
      },
      "tags": {},
      "dependsOn": [],
      "properties": {
        "accessTier": "Hot"
      },
      "resources": [
        {
          "name": "default",
          "type": "blobServices",
          "apiVersion": "2018-11-01",
          "dependsOn": [
            "storageAccountName"
          ],
          "properties": {
            "cors": {
              "corsRules": [
                {
                  "allowedOrigins": [
                    "https://mywebsite.com"
                  ],
                  "allowedMethods": [
                    "GET"
                  ],
                  "maxAgeInSeconds": 0,
                  "exposedHeaders": [
                    "*"
                  ],
                  "allowedHeaders": [
                    "*"
                  ]
                }
              ]
            }
          },
          "resources": []
        },
        {
          "type": "blobServices/containers",
          "apiVersion": "2018-03-01-preview",
          "name": "[concat('default/', 'myFilesToShare')]",
          "dependsOn": [
            "storageAccountName"
          ],
          "properties": {
            "publicAccess": "Blob"
          }
        }
      ]
    }
  ]
}

Answer 2

What is your deployment client? If you are using Powershell to deploy ARM (w you probably are) why not use Set-AzureStorageCORSRule?

PS C:\>$CorsRules = (@{
AllowedHeaders=@("x-ms-blob-content-type","x-ms-blob-content-disposition");
AllowedOrigins=@("*");
MaxAgeInSeconds=30;
AllowedMethods=@("Get","Connect")},
@{
AllowedOrigins=@("http://www.fabrikam.com","http://www.contoso.com");
ExposedHeaders=@("x-ms-meta-data*","x-ms-meta-customheader");
AllowedHeaders=@("x-ms-meta-target*","x-ms-meta-customheader");
MaxAgeInSeconds=30;
AllowedMethods=@("Put")})

PS C:\> Set-AzureStorageCORSRule -ServiceType Blob -CorsRules $CorsRules