How to add multiple RBAC roles on a single azure resource via ARM template

Question

I am trying to create multiple RBAC roles for users/groups in a single resource.I am able to add a single group or a user to the resource but not able to provide multiple users (one with owner permission, another group/user with contributor permission) on the same resource. I came to know that "name" should be different, but when I provide a different name it says "not able to find resource.

I have declared the principalid and rolegroup as arrays. I am trying to create Azure analysis service. Below is the code. The error I am getting by running the below code is "Deployment template validation failed: 'The resource Microsoft.AnalysisServices/servers/aascmigqa/providers/Microsoft.Authorization/roleAssignments/40ba7757-1e75-5eb7-b6ca-ea5a9ca77ce3' at line '1' and column '2237' is defined multiple times in a template. Please see https://aka.ms/arm-template/#resources for usage details.'."

{
   "$schema":"https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
   "contentVersion":"1.0.0.0",
   "parameters":{
      "environment":{
         "type":"string",
         "defaultValue":"qa",
         "metadata":{
            "description":"Environment name."

         }
      },
      "subscriptionId":{
         "type":"string",
         "defaultValue":"xxx"   
      },         
      "location":{
         "type":"string",
         "defaultValue":"east us",
         "metadata":{
            "description":"Location of the Analysis Services."
         }
      },
      "skuName":{
         "type":"string",
         "defaultValue":"S0",
         "metadata":{
            "description":"SKU name of the service."
         }
      },
      "tier":{
         "type":"string",
         "defaultValue":"Basic",
         "metadata":{
            "description":"Tier name of the service"
         }
      },
      "capacity":{
         "type":"int",
         "defaultValue":1,
         "metadata":{
            "description":"Capacity of the service"
         }
      },
      "aasAdministrators":{
         "type":"object",
         "defaultValue":{

         }
      },
      "aasTags":{
         "defaultValue":{

         },
         "type":"Object"
      },
      "principalId":{
         "type":"array",
         "metadata":{
            "description":"The principal to assign the role to"
         }
      },
      "count": {
      "type": "int",
      "defaultValue": 2,
      "metadata": {
        "description": "Size of array"
      }
    },
      "builtInRoleType":{
         "type":"array",
         "allowedValues":[
            "Owner",
            "Contributor",
            "Reader"
         ],
         "metadata":{
            "description":"Built-in role to assign"
         }
      }
    },
   "variables":{
      "server_name":"[concat('aascmig', parameters('environment'))]",
      "Owner": "[concat('/subscriptions/', parameters('subscriptionId'), '/providers/Microsoft.Authorization/roleDefinitions/', '8e3af657-a8ff-443c-a75c-2fe8c4bcb635')]",
      "Contributor": "[concat('/subscriptions/', parameters('subscriptionId'), '/providers/Microsoft.Authorization/roleDefinitions/', 'b24988ac-6180-42a0-ab88-20f7382dd24c')]",
      "Reader": "[concat('/subscriptions/', parameters('subscriptionId'), '/providers/Microsoft.Authorization/roleDefinitions/', 'acdd72a7-3385-48ef-bd42-f606fba81ae7')]"
   },
   "resources":[
        {
         "type":"Microsoft.AnalysisServices/servers",
         "apiVersion":"2017-08-01",
         "name":"[variables('server_name')]",
         "location":"[parameters('location')]",
         "tags":"[parameters('aasTags')]",
         "sku":{
            "name":"[parameters('skuName')]",
            "tier":"[parameters('tier')]",
            "capacity":"[parameters('capacity')]"
         },
         "properties":{
            "managedMode":1,
            "asAdministrators":"[parameters('aasAdministrators')]",
            "querypoolConnectionMode":"All",
            "serverMonitorMode":1
         }
       },
       {
         "type": "Microsoft.AnalysisServices/servers/providers/roleAssignments",
         "apiVersion": "2018-09-01-preview",
         "name": "[concat(variables('server_name'), '/Microsoft.Authorization/', guid(uniqueString(variables('server_name'))))]",
         "copy": {
            "name": "anyname",
            "count":"[length(parameters('principalId'))]"
         }, 
         "dependsOn": [
            "[variables('server_name')]"
            ],
           "properties": {
             "roleDefinitionId": "[variables(parameters('builtInRoleType'))[copyIndex()]]",
             "principalId": "[parameters('principalId')[copyIndex()]]"
           }
        } 
        }

Is this a syntax error or something which is not possible.
Thanks in advance!

4c74356b41 4c74356b41 · Accepted Answer · 2020-06-19T15:39:21

you need to generate unique name \ guid for each assignment, you can just do this:

guid(uniqueString(variables('server_name'), copyIndex()))

this will ensure each resource has got its own guid

How to add multiple RBAC roles on a single azure resource via ARM template

1 Answers