MTV-1693 | Ignore missing PVC prime

Issue: The migration fails on cluster with 4.14 CNV CDI. The 4.14 CNV
CDI does not use prime PVC but uses the DV id.
Error:
```
persistentvolumeclaims prime-b9d0f99b-4e02-469e-83e2-74dbb186531b not found
```

Fix: Try to fetch the prime pvc but if it fails use the original name
and ignore error. This way it will be backwards compatible and support
the new prime PVC case.

Ref: https://issues.redhat.com/browse/MTV-1693

Signed-off-by: Martin Necas <[email protected]>

pkg/controller/plan/migration.go

@@ -27,6 +27,7 @@ import (
 	"github.com/konveyor/forklift-controller/pkg/settings"
 	batchv1 "k8s.io/api/batch/v1"
 	core "k8s.io/api/core/v1"
+	k8serr "k8s.io/apimachinery/pkg/api/errors"
 	meta "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/types"
@@ -1626,23 +1627,27 @@ func (r *Migration) updateCopyProgress(vm *plan.VMStatus, step *plan.Step) (err
 							path.Join(dv.Namespace, dv.Name))
 						continue
 					}
-					primePvc := &core.PersistentVolumeClaim{}
 					err = r.Destination.Client.Get(context.TODO(), types.NamespacedName{
 						Namespace: r.Plan.Spec.TargetNamespace,
 						Name:      fmt.Sprintf("prime-%s", pvc.UID),
-					}, primePvc)
+					}, pvc)
 					if err != nil {
-						log.Error(
-							err,
-							"Could not get prime PVC for DataVolume.",
-							"vm",
-							vm.String(),
-							"dv",
-							path.Join(dv.Namespace, dv.Name))
-						continue
+						if k8serr.IsNotFound(err) {
+							log.Info("Could not find prime PVC")
+							// Ignore error
+							err = nil
+						} else {
+							log.Error(
+								err,
+								"Could not get prime PVC for DataVolume.",
+								"vm",
+								vm.String(),
+								"dv",
+								path.Join(dv.Namespace, dv.Name))
+							continue
+						}
 					}
-
-					importer, found, kErr = r.kubevirt.GetImporterPod(*primePvc)
+					importer, found, kErr = r.kubevirt.GetImporterPod(*pvc)
 				}
 
 				if kErr != nil {