Was not checking if KubeVirt CRD was not installed (#1408)

By not checking and checking the live migration
check box in the plan, it would error out making
the plan not ready. This would only happen if kubevirt
was not installed.

This PR fixes this by checking if the error is that
the CRD does not exist and it will return nil instead
of erroring out.

Signed-off-by: Alexander Wels <[email protected]>

Author: awels

pkg/controller/migplan/validation.go

@@ -22,6 +22,7 @@ import (
 	"github.com/opentracing/opentracing-go"
 	kapi "k8s.io/api/core/v1"
 	k8serror "k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/api/meta"
 	"k8s.io/apimachinery/pkg/fields"
 	k8sLabels "k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -1692,6 +1693,9 @@ func (r *ReconcileMigPlan) validateKubeVirtInstalled(ctx context.Context, client
 	}
 	kubevirtList := &virtv1.KubeVirtList{}
 	if err := client.List(ctx, kubevirtList); err != nil {
+		if meta.IsNoMatchError(err) {
+			return nil
+		}
 		return liberr.Wrap(err)
 	}
 	if len(kubevirtList.Items) == 0 || len(kubevirtList.Items) > 1 {