func cmdDel(args *skel.CmdArgs) error {
conf := NetConf{}
if err := json.Unmarshal(args.StdinData, &conf); err != nil {
return fmt.Errorf("failed to load netconf: %v", err)
}
var ipn *net.IPNet
err := ns.WithNetNSPath(args.Netns, false, func(hostNS *os.File) error {
var err error
ipn, err = ip.DelLinkByNameAddr(args.IfName, netlink.FAMILY_V4)
return err
})
if err != nil {
return err
}
if conf.IPMasq {
h := sha512.Sum512([]byte(args.ContainerID))
chain := fmt.Sprintf("CNI-%s-%x", conf.Name, h[:8])
if err = ip.TeardownIPMasq(ipn, chain); err != nil {
return err
}
}
return ipam.ExecDel(conf.IPAM.Type, args.StdinData)
}
func cmdDel(args *skel.CmdArgs) error {
conf := NetConf{}
if err := json.Unmarshal(args.StdinData, &conf); err != nil {
return fmt.Errorf("failed to load netconf: %v", err)
}
var ipn *net.IPNet
err := ns.WithNetNSPath(args.Netns, false, func(hostNS *os.File) error {
var err error
ipn, err = ip.DelLinkByNameAddr(args.IfName, netlink.FAMILY_V4)
return err
})
if err != nil {
return err
}
if conf.IPMasq {
chain := utils.FormatChainName(conf.Name, args.ContainerID)
comment := utils.FormatComment(conf.Name, args.ContainerID)
if err = ip.TeardownIPMasq(ipn, chain, comment); err != nil {
return err
}
}
return ipam.ExecDel(conf.IPAM.Type, args.StdinData)
}
func (c *CNIPlugin) CmdDel(args *skel.CmdArgs) error {
conf, err := loadNetConf(args.StdinData)
if err != nil {
return err
}
ns, err := netns.GetFromPath(args.Netns)
if err != nil {
return err
}
defer ns.Close()
err = weavenet.WithNetNSUnsafe(ns, func() error {
link, err := netlink.LinkByName(args.IfName)
if err != nil {
return err
}
return netlink.LinkDel(link)
})
if err != nil {
return fmt.Errorf("error removing interface: %s", err)
}
// Default IPAM is Weave's own
if conf.IPAM.Type == "" {
err = ipamplugin.NewIpam(c.weave).Release(args)
} else {
err = ipam.ExecDel(conf.IPAM.Type, args.StdinData)
}
if err != nil {
return fmt.Errorf("unable to release IP address: %s", err)
}
return nil
}
func cmdDel(args *skel.CmdArgs) error {
n, err := loadConf(args.StdinData)
if err != nil {
return err
}
err = ipam.ExecDel(n.IPAM.Type, args.StdinData)
if err != nil {
return err
}
linkFactory := &links.Factory{Netlinker: nl.Netlink}
containerNS := namespace.NewNamespace(args.Netns)
err = containerNS.Execute(func(ns *os.File) error {
linkFactory.DeleteLinkByName(args.IfName)
return nil
})
if err != nil {
return fmt.Errorf("failed to delete link in container namespace: %s", err)
}
sandboxRepo, err := getSandboxRepo()
if err != nil {
return fmt.Errorf("failed to open sandbox repository: %s", err)
}
sandboxNS, err := sandboxRepo.Get(fmt.Sprintf("vni-%d", vni))
if err != nil {
return fmt.Errorf("failed to get sandbox namespace: %s", err)
}
var sandboxLinks []netlink.Link
err = sandboxNS.Execute(func(ns *os.File) error {
var err error
sandboxLinks, err = linkFactory.ListLinks()
return err
})
if err != nil {
return fmt.Errorf("failed to get sandbox links: %s", err)
}
for _, link := range sandboxLinks {
if _, ok := link.(*netlink.Veth); ok {
return nil // we still have a container attached
}
}
err = sandboxNS.Destroy()
if err != nil {
return fmt.Errorf("failed to destroy sandbox namespace: %s", err)
}
return nil
}
func cmdDel(args *skel.CmdArgs) error {
netconfBytes, err := consumeScratchNetConf(args.ContainerID)
if err != nil {
return err
}
n := &types.NetConf{}
if err = json.Unmarshal(netconfBytes, n); err != nil {
return fmt.Errorf("failed to parse netconf: %v", err)
}
return ipam.ExecDel(n.Type, netconfBytes)
}
func cmdDel(args *skel.CmdArgs) error {
n, err := loadNetConf(args.StdinData)
if err != nil {
return err
}
err = ipam.ExecDel(n.IPAM.Type, args.StdinData)
if err != nil {
return err
}
return ns.WithNetNSPath(args.Netns, false, func(hostNS *os.File) error {
return ip.DelLinkByName(args.IfName)
})
}