fix memory overflow, add mac_binding related options to router (#4610)

Signed-off-by: clyi <[email protected]>

pkg/controller/init.go

@@ -200,6 +200,15 @@ func (c *Controller) initClusterRouter() error {
 	klog.Infof("exists routers: %v", lrs)
 	for _, r := range lrs {
 		if c.config.ClusterRouter == r {
+			options := map[string]string{
+				"always_learn_from_arp_request": "false",
+				"dynamic_neigh_routers":         "true",
+			}
+			err := c.ovnLegacyClient.UpdateLogicalRouter(r, options)
+			if err != nil {
+				klog.Errorf("failed to update router %s: %v", r, err)
+				return err
+			}
 			return nil
 		}
 	}

pkg/controller/vpc.go

@@ -809,6 +809,15 @@ func (c *Controller) createVpcRouter(lr string) error {
 	klog.Infof("exists routers %v", lrs)
 	for _, r := range lrs {
 		if lr == r {
+			options := map[string]string{
+				"always_learn_from_arp_request": "false",
+				"dynamic_neigh_routers":         "true",
+			}
+			err := c.ovnLegacyClient.UpdateLogicalRouter(lr, options)
+			if err != nil {
+				klog.Errorf("failed to update router %s: %v", lr, err)
+				return err
+			}
 			return nil
 		}
 	}

pkg/ovs/ovn-nbctl-legacy.go

@@ -879,6 +879,16 @@ func (c LegacyClient) CreateLogicalRouter(lr string) error {
 	return err
 }
 
+// UpdateLogicalRouter update logical router in ovn
+func (c LegacyClient) UpdateLogicalRouter(lr string, options map[string]string) error {
+	args := []string{"set", "Logical_Router", lr}
+	for key, value := range options {
+		args = append(args, fmt.Sprintf("options:%s=%s", key, value))
+	}
+	_, err := c.ovnNbCommand(args...)
+	return err
+}
+
 // DeleteLogicalRouter create logical router in ovn
 func (c LegacyClient) DeleteLogicalRouter(lr string) error {
 	_, err := c.ovnNbCommand(IfExists, "lr-del", lr)