fix(readonly): honouring readonly flag.

Readonly flag does not come as mount option, it has
separate field to mention readonly flag. ZFS-LocalPV
driver should check that field and add "ro" as mountoption.

Signed-off-by: Pawan <pawan@mayadata.io>

pkg/apis/openebs.io/zfs/v1alpha1/zfsvolume.go

@@ -57,10 +57,6 @@ type MountInfo struct {
 	// on that node
 	MountPath string `json:"mountPath"`
 
-	// ReadOnly specifies if the volume needs
-	// to be mounted in ReadOnly mode
-	ReadOnly bool `json:"readOnly"`
-
 	// MountOptions specifies the options with
 	// which mount needs to be attempted
 	MountOptions []string `json:"mountOptions"`

pkg/driver/agent.go

@@ -76,9 +76,12 @@ func GetVolAndMountInfo(
 
 	mountinfo.FSType = req.GetVolumeCapability().GetMount().GetFsType()
 	mountinfo.MountPath = req.GetTargetPath()
-	mountinfo.ReadOnly = req.GetReadonly()
 	mountinfo.MountOptions = append(mountinfo.MountOptions, req.GetVolumeCapability().GetMount().GetMountFlags()...)
 
+	if req.GetReadonly() {
+		mountinfo.MountOptions = append(mountinfo.MountOptions, "ro")
+	}
+
 	getOptions := metav1.GetOptions{}
 	vol, err := volbuilder.NewKubeclient().
 		WithNamespace(zfs.OpenEBSNamespace).