feat: suport kubevirt nic hotplug (#3013)

Signed-off-by: wujixin <wujix@yealink.com>
Co-authored-by: wujixin <wujix@yealink.com>

Author: watermelon-brother

pkg/controller/pod.go

@@ -1069,6 +1069,7 @@ func (c *Controller) syncKubeOvnNet(pod *v1.Pod, podNets []*kubeovnNet) error {
 	key := fmt.Sprintf("%s/%s", pod.Namespace, podName)
 	targetPortNameList := strset.NewWithSize(len(podNets))
 	portsNeedToDel := []string{}
+	annotationsNeedToDel := []string{}
 	subnetUsedByPort := make(map[string]string)
 
 	for _, podNet := range podNets {
@@ -1086,6 +1087,12 @@ func (c *Controller) syncKubeOvnNet(pod *v1.Pod, podNets []*kubeovnNet) error {
 		if !targetPortNameList.Has(port.Name) {
 			portsNeedToDel = append(portsNeedToDel, port.Name)
 			subnetUsedByPort[port.Name] = port.ExternalIDs["ls"]
+			portNameSlice := strings.Split(port.Name, ".")
+			providerName := strings.Join(portNameSlice[2:], ".")
+			if providerName == util.OvnProvider {
+				continue
+			}
+			annotationsNeedToDel = append(annotationsNeedToDel, providerName)
 		}
 	}
 
@@ -1111,6 +1118,14 @@ func (c *Controller) syncKubeOvnNet(pod *v1.Pod, podNets []*kubeovnNet) error {
 		}
 	}
 
+	for _, providerName := range annotationsNeedToDel {
+		for annotationKey := range pod.Annotations {
+			if strings.HasPrefix(key, providerName) {
+				delete(pod.Annotations, annotationKey)
+			}
+		}
+	}
+
 	return nil
 }
 

pkg/daemon/ovs_linux.go

@@ -191,6 +191,11 @@ func generateNicName(containerID, ifname string) (string, string) {
 	if ifname == "eth0" {
 		return fmt.Sprintf("%s_h", containerID[0:12]), fmt.Sprintf("%s_c", containerID[0:12])
 	}
+	// The nic name is 14 length and have prefix pod in the Kubevirt v1.0.0
+	if strings.HasPrefix(ifname, "pod") && len(ifname) == 14 {
+		ifname = ifname[3 : len(ifname)-4]
+		return fmt.Sprintf("%s_%s_h", containerID[0:12-len(ifname)], ifname), fmt.Sprintf("%s_%s_c", containerID[0:12-len(ifname)], ifname)
+	}
 	return fmt.Sprintf("%s_%s_h", containerID[0:12-len(ifname)], ifname), fmt.Sprintf("%s_%s_c", containerID[0:12-len(ifname)], ifname)
 }