storing

type Membership interface {
	// Nodes return all the Nodes of the cluster except the current one
	Nodes() []*client.Client

	// NodesWithoutVolumeIDs return all the Nodes of the cluster except the current one that
	// do not have any of the provided vids
	NodesWithoutVolumeIDs(vids []string) []*client.Client

	// LocalVolumes returns only the local volumes
	LocalVolumes() []volume.Local

	// GetNodeWithVolumeByID returns the Node that has the
	// vid in his volumes
	GetNodeWithVolumeByID(vid string) (*client.Client, error)

	// GetNodeState returns the Staet of the Node
	GetNodeState(nn string) (*membership.State, error)

	// RemovedVolumeIDs returns a list of are the volumeIDs
	// that left the cluster
	RemovedVolumeIDs() []string

	// Leave makes it leave the cluster
	Leave()
}

type Service interface {
	volume.Volume

	// Config returns the current Service configuration
	Config(context.Context) (*config.Config, error)

	// CreateReplica creates a new File replica
	CreateReplica(ctx context.Context, key string, reader io.ReadCloser) (vID string, err error)
}