Fix linter issues

Author: nprokopic

pkg/snapshot/controller.go

@@ -218,6 +218,8 @@ func (c *Reconciler) Reconcile(ctx context.Context, req ctrl.Request) (result ct
 			snapshotRequest.Status.Phase = RequestPhaseCreatingEtcdBackup
 		case volumes.RequestPhaseFailed:
 			snapshotRequest.Status.Phase = RequestPhaseFailed
+		default:
+			return ctrl.Result{}, fmt.Errorf("unexpected volume snapshots request phase %s", volumeSnapshotsRequest.Status.Phase)
 		}
 	case RequestPhaseCreatingEtcdBackup:
 		requeue, err := c.reconcileCreatingEtcdBackup(ctx, &configMap, snapshotRequest)

pkg/snapshot/volumes/csi/reconcileinprogress.go

@@ -95,7 +95,7 @@ func (s *VolumeSnapshotter) reconcileInProgressPVC(ctx context.Context, snapshot
 	volumeSnapshot, err := s.snapshotsClient.SnapshotV1().VolumeSnapshots(pvcName.Namespace).Get(ctx, volumeSnapshotName, metav1.GetOptions{})
 	if kerrors.IsNotFound(err) {
 		// create new VolumeSnapshot
-		volumeSnapshot, err = s.createVolumeSnapshotResource(ctx, snapshotRequestName, volumeSnapshotName, pvcName, config.VolumeSnapshotClassName)
+		_, err = s.createVolumeSnapshotResource(ctx, snapshotRequestName, volumeSnapshotName, pvcName, config.VolumeSnapshotClassName)
 		if err != nil {
 			return volumes.SnapshotStatus{}, fmt.Errorf("failed to create VolumeSnapshot for the PersistentVolumeClaim %s: %w", pvcName, err)
 		}

pkg/snapshot/volumes/csi/snapshothandler.go

@@ -0,0 +1,13 @@
+package csi
+
+import (
+	snapshotsv1 "github.com/kubernetes-csi/external-snapshotter/client/v8/clientset/versioned"
+	"github.com/loft-sh/vcluster/pkg/util/loghelper"
+	"k8s.io/client-go/kubernetes"
+)
+
+type snapshotHandler struct {
+	kubeClient      *kubernetes.Clientset
+	snapshotsClient *snapshotsv1.Clientset
+	logger          loghelper.Logger
+}

pkg/snapshot/volumes/csi/volumesnapshotclasses.go

@@ -3,6 +3,7 @@ package volumes
 import (
 	"context"
 	"errors"
+
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 )