func (plugin *cniNetworkPlugin) TearDownPod(namespace string, name string, id kubecontainer.DockerID) error {
runtime, ok := plugin.host.GetRuntime().(*dockertools.DockerManager)
if !ok {
return fmt.Errorf("CNI execution called on non-docker runtime")
}
netns, err := runtime.GetNetNS(id.ContainerID())
if err != nil {
return err
}
return plugin.defaultNetwork.deleteFromNetwork(name, namespace, id.ContainerID(), netns)
}
func (plugin *cniNetworkPlugin) SetUpPod(namespace string, name string, id kubecontainer.DockerID) error {
runtime, ok := plugin.host.GetRuntime().(*dockertools.DockerManager)
if !ok {
return fmt.Errorf("CNI execution called on non-docker runtime")
}
netns, err := runtime.GetNetNS(id.ContainerID())
if err != nil {
return err
}
_, err = plugin.defaultNetwork.addToNetwork(name, namespace, id.ContainerID(), netns)
if err != nil {
glog.Errorf("Error while adding to cni network: %s", err)
return err
}
return err
}
func (plugin *kubenetNetworkPlugin) SetUpPod(namespace string, name string, id kubecontainer.DockerID) error {
// Can't set up pods if we don't have a PodCIDR yet
if plugin.netConfig == nil {
return fmt.Errorf("Kubenet needs a PodCIDR to set up pods")
}
runtime, ok := plugin.host.GetRuntime().(*dockertools.DockerManager)
if !ok {
return fmt.Errorf("Kubenet execution called on non-docker runtime")
}
netnsPath, err := runtime.GetNetNS(id.ContainerID())
if err != nil {
return err
}
rt := buildCNIRuntimeConf(name, namespace, id.ContainerID(), netnsPath)
if err != nil {
return fmt.Errorf("Error building CNI config: %v", err)
}
glog.V(3).Infof("Calling cni plugins to add container to network with cni runtime: %+v", rt)
res, err := plugin.cniConfig.AddNetwork(plugin.netConfig, rt)
if err != nil {
return fmt.Errorf("Error adding container to network: %v", err)
}
if res.IP4 == nil {
return fmt.Errorf("CNI plugin reported no IPv4 address for container %v.", id)
}
plugin.podCIDRs[id] = res.IP4.IP.String()
// The first SetUpPod call creates the bridge; ensure shaping is enabled
if plugin.shaper == nil {
plugin.shaper = bandwidth.NewTCShaper(BridgeName)
if plugin.shaper == nil {
return fmt.Errorf("Failed to create bandwidth shaper!")
}
plugin.shaper.ReconcileInterface()
}
// TODO: get ingress/egress from Pod.Spec and add pod CIDR to shaper
return nil
}
func (plugin *kubenetNetworkPlugin) TearDownPod(namespace string, name string, id kubecontainer.DockerID) error {
if plugin.netConfig == nil {
return fmt.Errorf("Kubenet needs a PodCIDR to tear down pods")
}
runtime, ok := plugin.host.GetRuntime().(*dockertools.DockerManager)
if !ok {
return fmt.Errorf("Kubenet execution called on non-docker runtime")
}
netnsPath, err := runtime.GetNetNS(id.ContainerID())
if err != nil {
return err
}
rt := buildCNIRuntimeConf(name, namespace, id.ContainerID(), netnsPath)
if err != nil {
return fmt.Errorf("Error building CNI config: %v", err)
}
// no cached CIDR is Ok during teardown
if cidr, ok := plugin.podCIDRs[id]; ok {
glog.V(5).Infof("Removing pod CIDR %s from shaper", cidr)
// shaper wants /32
if addr, _, err := net.ParseCIDR(cidr); err != nil {
if err = plugin.shaper.Reset(fmt.Sprintf("%s/32", addr.String())); err != nil {
glog.Warningf("Failed to remove pod CIDR %s from shaper: %v", cidr, err)
}
}
}
delete(plugin.podCIDRs, id)
glog.V(3).Infof("Calling cni plugins to remove container from network with cni runtime: %+v", rt)
if err := plugin.cniConfig.DelNetwork(plugin.netConfig, rt); err != nil {
return fmt.Errorf("Error removing container from network: %v", err)
}
return nil
}