devicemanager

type Device struct {
	Instance          *ec2.Instance
	Path              string
	VolumeID          string
	IsAlreadyAssigned bool
	// contains filtered or unexported fields
}

type DeviceManager interface {
	// NewDevice retrieves the device if the device is already assigned.
	// Otherwise it creates a new device with next available device name
	// and mark it as unassigned device.
	NewDevice(instance *ec2.Instance, volumeID string) (device *Device, err error)

	// GetDevice returns the device already assigned to the volume.
	GetDevice(instance *ec2.Instance, volumeID string) (device *Device, err error)
}