cephfs: add clone progress report in clone status

cephfs/admin/clone.go

@@ -81,10 +81,18 @@ type CloneSource struct {
 	Snapshot  string `json:"snapshot"`
 }
 
+// CloneProgressReport contains the progress report of a subvolume clone.
+type CloneProgressReport struct {
+	PercentageCloned string `json:"percentage cloned"`
+	AmountCloned     string `json:"amount cloned"`
+	FilesCloned      string `json:"files cloned"`
+}
+
 // CloneStatus reports on the status of a subvolume clone.
 type CloneStatus struct {
-	State  CloneState  `json:"state"`
-	Source CloneSource `json:"source"`
+	State          CloneState          `json:"state"`
+	Source         CloneSource         `json:"source"`
+	ProgressReport CloneProgressReport `json:"progress_report"`
 
 	// failure can be obtained through .GetFailure()
 	failure *CloneFailure

cephfs/admin/clone_progress_report_test.go

@@ -0,0 +1,76 @@
+//go:build main
+
+package admin
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCloneProgress(t *testing.T) {
+	fsa := getFSAdmin(t)
+	volume := "cephfs"
+	group := "Park"
+	subname := "Jurrasic"
+	snapname := "dinodna1"
+	clonename := "babydino"
+
+	err := fsa.CreateSubVolumeGroup(volume, group, nil)
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolumeGroup(volume, group)
+		assert.NoError(t, err)
+	}()
+
+	svopts := &SubVolumeOptions{
+		Mode: 0750,
+		Size: 20 * gibiByte,
+	}
+	err = fsa.CreateSubVolume(volume, group, subname, svopts)
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolume(volume, group, subname)
+		assert.NoError(t, err)
+	}()
+
+	err = fsa.CreateSubVolumeSnapshot(volume, group, subname, snapname)
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolumeSnapshot(volume, group, subname, snapname)
+		assert.NoError(t, err)
+	}()
+
+	err = fsa.CloneSubVolumeSnapshot(
+		volume, group, subname, snapname, clonename,
+		&CloneOptions{TargetGroup: group})
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolume(volume, group, clonename)
+		assert.NoError(t, err)
+	}()
+
+	wasInProgress := false
+	for done := false; !done; {
+		status, err := fsa.CloneStatus(volume, group, clonename)
+		assert.NoError(t, err)
+		assert.NotNil(t, status)
+		switch status.State {
+		case ClonePending:
+		case CloneInProgress:
+			wasInProgress = true
+			assert.NotNil(t, status.ProgressReport.PercentageCloned)
+			assert.NotNil(t, status.ProgressReport.AmountCloned)
+			assert.NotNil(t, status.ProgressReport.FilesCloned)
+		case CloneComplete:
+			done = true
+		case CloneFailed:
+			t.Fatal("clone failed")
+		default:
+			t.Fatalf("invalid clone status: %q", status.State)
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+	assert.Equal(t, wasInProgress, true)
+}

cephfs/admin/clone_progress_report_unsupported_test.go

@@ -0,0 +1,76 @@
+//go:build !main
+
+package admin
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCloneProgress(t *testing.T) {
+	fsa := getFSAdmin(t)
+	volume := "cephfs"
+	group := "Park"
+	subname := "Jurrasic"
+	snapname := "dinodna1"
+	clonename := "babydino"
+
+	err := fsa.CreateSubVolumeGroup(volume, group, nil)
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolumeGroup(volume, group)
+		assert.NoError(t, err)
+	}()
+
+	svopts := &SubVolumeOptions{
+		Mode: 0750,
+		Size: 20 * gibiByte,
+	}
+	err = fsa.CreateSubVolume(volume, group, subname, svopts)
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolume(volume, group, subname)
+		assert.NoError(t, err)
+	}()
+
+	err = fsa.CreateSubVolumeSnapshot(volume, group, subname, snapname)
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolumeSnapshot(volume, group, subname, snapname)
+		assert.NoError(t, err)
+	}()
+
+	err = fsa.CloneSubVolumeSnapshot(
+		volume, group, subname, snapname, clonename,
+		&CloneOptions{TargetGroup: group})
+	assert.NoError(t, err)
+	defer func() {
+		err := fsa.RemoveSubVolume(volume, group, clonename)
+		assert.NoError(t, err)
+	}()
+
+	wasInProgress := false
+	for done := false; !done; {
+		status, err := fsa.CloneStatus(volume, group, clonename)
+		assert.NoError(t, err)
+		assert.NotNil(t, status)
+		switch status.State {
+		case ClonePending:
+		case CloneInProgress:
+			wasInProgress = true
+			assert.Empty(t, status.ProgressReport.PercentageCloned)
+			assert.Empty(t, status.ProgressReport.AmountCloned)
+			assert.Empty(t, status.ProgressReport.FilesCloned)
+		case CloneComplete:
+			done = true
+		case CloneFailed:
+			t.Fatal("clone failed")
+		default:
+			t.Fatalf("invalid clone status: %q", status.State)
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+	assert.Equal(t, wasInProgress, true)
+}