func logoutTarget(c *cli.Context) {
	plugin := iscsi.NewISCSIPlugin()
	err := plugin.LogoutTarget("", "")
	if err != nil {
		log.Panic(err)
	}
}
func listVolumes(c *cli.Context) {
	plugin := iscsi.NewISCSIPlugin()
	err := plugin.ListVolumes()
	if err != nil {
		log.Panic(err)
	}
}
func discoverVolumes(c *cli.Context) {
	target := c.String("target")
	if len(target) == 0 {
		cli.ShowCommandHelp(c, "discover")
		return
	}

	plugin := iscsi.NewISCSIPlugin()
	err := plugin.DiscoverLUNs(target)
	if err != nil {
		log.Panic(err)
	}
}