Assign Permissions to the App Service

As the app service you created for the Azure AD SCIM microservice calls Microsoft Graph, you need to assign to the service principal permissions required for your use case. You assign these permissions using the Azure Cloud Shell, which is a browser-accessible shell for managing Azure resources.

To assign permissions to the service principal, you need to complete the following tasks:

1. Start an Azure Cloud Shell session.

2. Run the permissions script included in this topic.

Set Permissions

1. In Azure, select Cloud Shell.
   

   

2. Select PowerShell as the script language.

3. From the shell, open the editor.
   

   

4. Copy the below script and paste it into the editor.
   

   The permissions in the script are for read/inventory only. If your use case requires additional permissions like create, update, delete, etc., you must update the script with those permissions. Additional permissions are shown in Table 1 below.

   $webApp=<"Web-App-Name">
   $sprincipal_id=$(az resource list -n $webApp --query [*].identity.principalId --out tsv)
   $graphResourceId=$(az ad sp list --display-name "Microsoft Graph" --query [0].id --out tsv)
   $uri="https://graph.microsoft.com/v1.0/servicePrincipals/$sprincipal_id/appRoleAssignments"
   $PermissionsToAdd = @("Directory.Read.All","Organization.Read.All", "User.Read.All", "Group.Read.All", "GroupMember.Read.All", "Reports.Read.All", "AuditLog.Read.All","Policy.Read.All","Policy.ReadWrite.ConditionalAccess","Application.Read.All","Domain.Read.All" )
   
   $PermissionsToAdd | foreach {
   
       $appRoleId=$(az ad sp list --display-name "Microsoft Graph" --query "[0].appRoles[?value=='$($_)' && contains(allowedMemberTypes, 'Application')].id" --output tsv)
       $body="{'principalId':'$sprincipal_id','resourceId':'$graphResourceId','appRoleId':'$appRoleId'}"
       az rest --method post --uri $uri --body $body --headers "Content-Type=application/json"
   }
   

   
   The editor should look similar to that shown below. The value of $PermissionsToAdd will differ according to your permissions.
   

   

5. Set the value of $webApp to the name of the app service you created to host the Azure AD SCIM microservice.
   

   Be sure to enclose the name in quotation marks

   $webApp="The name of your app service"

6. Save the script as apply-perms.ps1
   

   

7. Back in the shell, return the name of the subscription with the app service.

   az account show

8. Copy the name.
   

   

9. Run the below command to set the subscription name to the value you just copied.

   az account set -s "Your Subscripton Name"

10. Run the permissions script.

    .\apply-perms.ps1

Table 1: Permissions

Create Custom Role in Azure if Managing Azures roles and Management Groups from EmpowerID

If you are managing Azure roles and management groups in EmpowerID, in addition to adding the needed permissions in the above script, you need to create a custom role and add those permissions to the role as shown in the below procedure.

1. In Azure, navigate to the target subscription and select Access control (IAM) from the Azure navbar.

2. On the Access Control (IAM) page, click Add and select Add custom role.
   

   

3. Under Basics, enter a Custom role name.

4. Select the Permissions tab and click Add permissions.
   

   

5. Search for Microsoft.ManagedIdentity and click the Microsoft Managed Identity tile.
   

   

6. For Actions, under Microsoft.ManagedIdentity/userAssignedIdentities, select the following:

   • Read : Get User Assigned Identity

   • Write : Create/Update User Assigned Identity

   • Delete : Delete User Assigned Identity

7. Click Add.
   

   

8. Back on the Create a custom role page, click Add permissions again and then search for Microsoft.Authorization.

9. Click the Microsoft Authorization tile and then add the below permissions:

   • Microsoft.Authorization/roleAssignments

     • Read : Get role assignment

     • Write : Create role assignment

     • Delete : Delete role assignment

   • Microsoft.Authorization/roleDefinitions

     • Read : Get role definition

     • Write : Create or update custom role definition

     • Delete : Delete custom role definition

10. Click Add.
    

    

11. Back on the Create a custom role page, click Add permissions again and then search for Microsoft.Authorization.

12. Click the Microsoft Management tile and select Read : List Groups under Microsoft.Management/managementGroups.

13. Click Add.
    

    

14. Back on the Create a custom role page, click Add permissions again, and then search for Microsoft.Resources.

15. Click the Microsoft Resources tile and then select the following permissions:

    • Microsoft.Resources/subscriptions/resourcegroups

      • Read : Get Resource Group

    • Microsoft.Resources/subscriptions/resources

      • Read : Get Subscription Resources

    • Microsoft.Resources/tenant

      • Read : Get Tenants

16. Click Add.

17. Back on the Create a custom role page, select the Assignable scopes tab and verify the scope.
    

    

18. Click Review + Create.

19. Review the permissions and then click Create.
    

    

20. Click OK to close the “created custom role” message.
    

    

    
    Now that you have created the custom role with the needed permissions, you need to assign the Azure AD SCIM microservice to the role.

21. On the Access control (IAM) page, click Add > Add role assignment.
    

    

22. In the Add role assignment pane that appears, enter the following:

    • Role – Select the custom role you just created

    • Assign access to – App Service

    • Subscription – Target subscription

    • Select – The SCIM app service you created earlier.

23. Click Save to add the role assignment.
    

    

24. On the Access control (IAM) page, select the Role assignments tab. You should see the SCIM app service you created assigned to the custom role.
    

    

Verify Permissions

After setting permissions for the app service, you can verify them by doing the following:

1. In Azure, navigate to your Azure Active Directory.

2. On the Azure Active Directory navbar, click Enterprise applications.

3. For Application type, select Managed Identities to filter the applications.
   

   

4. Click Apply.

5. Click the Name link for your application.
   

   

6. Under Security on the navbar, click Permissions.
   

   

   
   You should see the permissions you set in the script granted to the application. Note that Admin consent has been granted for each permission.
   

   

Next Steps

Connect EmpowerID to Azure Active Directory