chore(logs): Add logs for volume unstage request (#172)

Signed-off-by: Abhishek Agarwal <abhishek.agarwal@mayadata.io>

Author: Abhishek Agarwal

pkg/driver/node.go

@@ -254,6 +254,8 @@ func (ns *node) NodeUnstageVolume(
 	}
 	defer removeVolumeFromTransitionList(volumeID)
 
+	logrus.Infof("Volume with ID: %v after uninitialising is in '%v' state", volumeID, utils.TransitionVolList[volumeID])
+
 	if vol, err = utils.GetCStorVolumeAttachment(volumeID + "-" + utils.NodeIDENV); err != nil {
 		if k8serror.IsNotFound(err) {
 			logrus.Infof("cva for %s has already been deleted", volumeID)
@@ -281,6 +283,7 @@ func (ns *node) NodeUnstageVolume(
 	// so all the cases are handled
 	utils.TransitionVolListLock.Lock()
 	utils.TransitionVolList[volumeID] = apis.CStorVolumeAttachmentStatusUnmountUnderProgress
+	logrus.Infof("Volume with ID: %v after starting unmount is in '%v' state", volumeID, utils.TransitionVolList[volumeID])
 	utils.TransitionVolListLock.Unlock()
 
 	if err = iscsiutils.UnmountAndDetachDisk(vol, stagingTargetPath); err != nil {
@@ -289,6 +292,7 @@ func (ns *node) NodeUnstageVolume(
 
 	utils.TransitionVolListLock.Lock()
 	utils.TransitionVolList[volumeID] = apis.CStorVolumeAttachmentStatusUnmounted
+	logrus.Infof("Volume with ID: %v after successful unmount is in '%v' state", volumeID, utils.TransitionVolList[volumeID])
 	utils.TransitionVolListLock.Unlock()
 
 	vol.Finalizers = nil

pkg/driver/utils.go

@@ -18,6 +18,7 @@ package driver
 
 import (
 	"fmt"
+	"github.com/sirupsen/logrus"
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
 	apisv1 "github.com/openebs/api/v3/pkg/apis/cstor/v1"
@@ -88,6 +89,7 @@ func removeVolumeFromTransitionList(volumeID string) {
 	utils.TransitionVolListLock.Lock()
 	defer utils.TransitionVolListLock.Unlock()
 	delete(utils.TransitionVolList, volumeID)
+	logrus.Infof("Volume with ID: %v has been successfully removed from the transition volume list: %v", volumeID, utils.TransitionVolList)
 }
 
 func addVolumeToTransitionList(volumeID string, status apisv1.CStorVolumeAttachmentStatus) error {

pkg/utils/utils.go

@@ -272,6 +272,7 @@ func MonitorMounts() {
 			for _, vol := range csivolList.Items {
 				// ignore monitoring for volumes with deletion timestamp set
 				if vol.DeletionTimestamp != nil {
+					logrus.Infof("CVA: %v for volume: %v has been marked for cleanup activity", vol.Name, vol.Spec.Volume.Name)
 					cleanupRequired = true
 					continue
 				}
@@ -372,6 +373,8 @@ func Cleanup() (err error) {
 		}
 		vol := Vol
 		TransitionVolList[vol.Spec.Volume.Name] = apis.CStorVolumeAttachmentStatusUnmountUnderProgress
+
+		logrus.Infof("Volume: %v marked as %v as part of cleanup activity", vol.Spec.Volume.Name, TransitionVolList[vol.Spec.Volume.Name])
 		// This is being run in a go routine so that if unmount and detach
 		// commands take time, the startup is not delayed
 		go func(vol *apis.CStorVolumeAttachment) {
@@ -388,6 +391,7 @@ func Cleanup() (err error) {
 
 			TransitionVolListLock.Lock()
 			delete(TransitionVolList, vol.Spec.Volume.Name)
+			logrus.Infof("Volume: %v has been successfully removed from the transition volume list after cleanup: %v", vol.Spec.Volume.Name, TransitionVolList)
 			TransitionVolListLock.Unlock()
 		}(&vol)
 	}