def cleanup_storage vm
      vm.volumes.each do |vol|
        @logger.debug "Deleting volume #{vol.name} for OpenStack host #{vm.name}"
        vm.detach_volume(vol.id)
        vol.wait_for { ready? }
        vol.destroy
      end
    end
def cleanup_storage vm
      vm.volumes.each do |vol|
        @logger.debug "Deleting volume #{vol.name} for OpenStack host #{vm.name}"
        vm.detach_volume(vol.id)
        vol.wait_for { ready? }
        vol.destroy
      end
    end
Detach and delete guest volumes
 @param vm [Fog::Compute::OpenStack::Server] the server to detach from