Add resource modifier for velero restore describe CLI

Signed-off-by: Xun Jiang <xun.jiang@broadcom.com>

changelogs/unreleased/8139-blackpiglet

@@ -0,0 +1 @@
+Add resource modifier for velero restore describe CLI

pkg/cmd/util/output/restore_describer.go

@@ -27,6 +27,7 @@ import (
 
 	"github.com/vmware-tanzu/velero/internal/volume"
 
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	kbclient "sigs.k8s.io/controller-runtime/pkg/client"
 
@@ -39,7 +40,15 @@ import (
 	"github.com/vmware-tanzu/velero/pkg/util/results"
 )
 
-func DescribeRestore(ctx context.Context, kbClient kbclient.Client, restore *velerov1api.Restore, podVolumeRestores []velerov1api.PodVolumeRestore, details bool, insecureSkipTLSVerify bool, caCertFile string) string {
+func DescribeRestore(
+	ctx context.Context,
+	kbClient kbclient.Client,
+	restore *velerov1api.Restore,
+	podVolumeRestores []velerov1api.PodVolumeRestore,
+	details bool,
+	insecureSkipTLSVerify bool,
+	caCertFile string,
+) string {
 	return Describe(func(d *Describer) {
 		d.DescribeMetadata(restore.ObjectMeta)
 
@@ -196,6 +205,11 @@ func DescribeRestore(ctx context.Context, kbClient kbclient.Client, restore *vel
 		d.Println()
 		d.Printf("Preserve Service NodePorts:\t%s\n", BoolPointerString(restore.Spec.PreserveNodePorts, "false", "true", "auto"))
 
+		if restore.Spec.ResourceModifier != nil {
+			d.Println()
+			DescribeResourceModifier(d, restore.Spec.ResourceModifier)
+		}
+
 		describeUploaderConfigForRestore(d, restore.Spec)
 
 		d.Println()
@@ -472,3 +486,10 @@ func describeRestoreResourceList(ctx context.Context, kbClient kbclient.Client,
 		d.Printf("\t%s:\n\t\t- %s\n", gvk, strings.Join(resourceList[gvk], "\n\t\t- "))
 	}
 }
+
+// DescribeResourceModifier describes resource policies in human-readable format
+func DescribeResourceModifier(d *Describer, resModifier *v1.TypedLocalObjectReference) {
+	d.Printf("Resource modifier:\n")
+	d.Printf("\tType:\t%s\n", resModifier.Kind)
+	d.Printf("\tName:\t%s\n", resModifier.Name)
+}

pkg/cmd/util/output/restore_describer_test.go

@@ -2,15 +2,16 @@ package output
 
 import (
 	"bytes"
+	"fmt"
 	"testing"
 	"text/tabwriter"
 	"time"
 
-	"github.com/vmware-tanzu/velero/internal/volume"
-
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	v1 "k8s.io/api/core/v1"
 
+	"github.com/vmware-tanzu/velero/internal/volume"
 	velerov1api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
 	"github.com/vmware-tanzu/velero/pkg/builder"
 	"github.com/vmware-tanzu/velero/pkg/itemoperation"
@@ -389,3 +390,28 @@ CSI Snapshot Restores:
 		})
 	}
 }
+
+func TestDescribeResourceModifier(t *testing.T) {
+	d := &Describer{
+		Prefix: "",
+		out:    &tabwriter.Writer{},
+		buf:    &bytes.Buffer{},
+	}
+
+	d.out.Init(d.buf, 0, 8, 2, ' ', 0)
+
+	DescribeResourceModifier(d, &v1.TypedLocalObjectReference{
+		APIGroup: &v1.SchemeGroupVersion.Group,
+		Kind:     "ConfigMap",
+		Name:     "resourceModifier",
+	})
+	d.out.Flush()
+
+	expectOutput := `Resource modifier:
+  Type:  ConfigMap
+  Name:  resourceModifier
+`
+
+	fmt.Println(d.buf.String())
+	require.Equal(t, expectOutput, d.buf.String())
+}