For eip created without spec.V4ip this field (#2912)

is always empty

Author: oilbeater

pkg/controller/vpc_nat_gw_eip.go

@@ -404,7 +404,7 @@ func (c *Controller) GetEip(eipName string) (*kubeovnv1.IptablesEIP, error) {
 		klog.Errorf("failed to get eip %s, %v", eipName, err)
 		return nil, err
 	}
-	if cachedEip.Status.IP == "" || cachedEip.Spec.V4ip == "" {
+	if cachedEip.Status.IP == "" {
 		return nil, fmt.Errorf("eip '%s' is not ready, has no v4ip", eipName)
 	}
 	eip := cachedEip.DeepCopy()
@@ -484,7 +484,7 @@ func (c *Controller) acquireEip(name, namespace, nicName string) (string, string
 }
 
 func (c *Controller) eipChangeIP(eip *kubeovnv1.IptablesEIP) bool {
-	if eip.Status.IP == "" || eip.Spec.V4ip == "" {
+	if eip.Status.IP == "" {
 		// eip created but not ready
 		return false
 	}