func cmdDel(args *skel.CmdArgs) error { args.IfName = "lo" // ignore config, this only works for loopback err := ns.WithNetNSPath(args.Netns, false, func(hostNS *os.File) error { link, err := netlink.LinkByName(args.IfName) if err != nil { return err // not tested } err = netlink.LinkSetDown(link) if err != nil { return err // not tested } return nil }) if err != nil { return err // not tested } return nil }