Control: Event Grid topics should use managed identity
Description
Use a managed identity for enhanced authentication security. A managed identity from Azure Active Directory (Azure AD) allows your Event Grid topic to easily access other Azure AD-protected resources such as Azure Key Vault.
Usage
Run the control in your terminal:
powerpipe control run terraform_azure_compliance.control.eventgrid_topic_uses_managed_identitySnapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run terraform_azure_compliance.control.eventgrid_topic_uses_managed_identity --shareSQL
This control uses a named query:
select  address as resource,  case    when (attributes_std -> 'identity' ->> 'type') = 'SystemAssigned' then 'ok'    else 'alarm'  end status,  split_part(address, '.', 2) || case    when (attributes_std -> 'identity' ->> 'type') = 'SystemAssigned' then ' uses managed identity'    else ' not uses managed identity'  end || '.' reason    , path || ':' || start_linefrom  terraform_resourcewhere  type = 'azurerm_eventgrid_topic';