Managed identity documentation and examples

[nicolasbouchard1412]

The module mssql_user can be used to add a Managed Identity into a database table, almost the same way you would add an AAD Service Principal to it.

However, it is confusing because when you want to use the object_id property, you have to pass the value of the client_id of the Managed Identity. BUT, the Managed Identity also have an object_id property.

resource "mssql_user" "this" {
  server {
    host = var.mssql_server.fqdn
    azure_login {
    }
  }

  database  = azurerm_mssql_database.database.name
  username  = azurerm_user_assigned_identity.managed_identity.name
  object_id = azurerm_user_assigned_identity.managed_identity.client_id  ###This is the confusing part

  roles     = ["db_datareader"]

  timeouts {
    default = "2m"
  }
}

I think adding the Managed Identity use case to the documentation and the repository examples would help.

Thanks!