Handle the case where VNI may not exist in dp-service

Network controller needs to react on the non-existence
of the VNI and requeue.

Signed-off-by: Guvenc Gulce <[email protected]>

Author: guvenc

controllers/network_controller.go

@@ -20,6 +20,8 @@ import (
 	"context"
 	"fmt"
 	"net/netip"
+	"strconv"
+	"strings"
 
 	"github.com/go-logr/logr"
 	"github.com/onmetal/controller-utils/clientutils"
@@ -123,6 +125,10 @@ func (r *NetworkReconciler) reconcile(ctx context.Context, log logr.Logger, netw
 
 	log.V(1).Info("Creating dpdk default route if not exists")
 	if err := r.createDefaultRouteIfNotExists(ctx, vni); err != nil {
+		if strings.Contains(err.Error(), strconv.Itoa(dpdk.ADD_RT_NO_VNI)) {
+			log.V(1).Info("VNI doesn't exist in dp-service, requeueing")
+			return ctrl.Result{Requeue: true}, nil
+		}
 		return ctrl.Result{}, err
 	}
 	log.V(1).Info("Created dpdk default route if not existed")

dpdk/errors.go

@@ -37,6 +37,7 @@ const (
 	ADD_RT              = 250
 	ADD_RT_FAIL4        = 251
 	ADD_RT_FAIL6        = 252
+	ADD_RT_NO_VNI       = 253
 	DEL_RT              = 300
 	ADD_NAT             = 350
 	ADD_NAT_IP_EXISTS   = 351