Added mount fstype based validation of Quobyte mounts

The validation of Quobyte mounts is extended to validate based
on a mounts file system type being set to "fuse.quobyte".

Closes-Bug: #1730933

Change-Id: I50430d67c2b9952d0b0c200920491c31f88a7ad7

cinder/tests/unit/volume/drivers/test_quobyte.py

@@ -944,7 +944,7 @@ class QuobyteDriverTestCase(test.TestCase):
 
     @mock.patch.object(psutil, "disk_partitions")
     @mock.patch.object(os, "stat")
-    def test_validate_volume_all_good(self, stat_mock, part_mock):
+    def test_validate_volume_all_good_prefix_val(self, stat_mock, part_mock):
         part_mock.return_value = self.get_mock_partitions()
         drv = self._driver
 
@@ -961,6 +961,27 @@ class QuobyteDriverTestCase(test.TestCase):
         stat_mock.assert_called_once_with(self.TEST_MNT_POINT)
         part_mock.assert_called_once_with(all=True)
 
+    @mock.patch.object(psutil, "disk_partitions")
+    @mock.patch.object(os, "stat")
+    def test_validate_volume_all_good_subtype_val(self, stat_mock, part_mock):
+        part_mock.return_value = self.get_mock_partitions()
+        part_mock.return_value[0].device = "not_quobyte"
+        part_mock.return_value[0].fstype = "fuse.quobyte"
+        drv = self._driver
+
+        def statMockCall(*args):
+            if args[0] == self.TEST_MNT_POINT:
+                stat_result = mock.Mock()
+                stat_result.st_size = 0
+                return stat_result
+            return os.stat(args)
+        stat_mock.side_effect = statMockCall
+
+        drv._validate_volume(self.TEST_MNT_POINT)
+
+        stat_mock.assert_called_once_with(self.TEST_MNT_POINT)
+        part_mock.assert_called_once_with(all=True)
+
     @mock.patch.object(psutil, "disk_partitions")
     @mock.patch.object(os, "stat")
     def test_validate_volume_mount_not_working(self, stat_mock, part_mock):

cinder/volume/drivers/quobyte.py

@@ -32,7 +32,7 @@ from cinder import utils
 from cinder.volume import configuration
 from cinder.volume.drivers import remotefs as remotefs_drv
 
-VERSION = '1.1.6'
+VERSION = '1.1.7'
 
 LOG = logging.getLogger(__name__)
 
@@ -86,6 +86,7 @@ class QuobyteDriver(remotefs_drv.RemoteFSSnapDriverDistributed):
         1.1.4 - Fixes capability to configure redundancy in quobyte_volume_url
         1.1.5 - Enables extension of volumes with snapshots
         1.1.6 - Optimizes volume creation
+        1.1.7 - Support fuse subtype based Quobyte mount validation
 
     """
 
@@ -504,7 +505,8 @@ class QuobyteDriver(remotefs_drv.RemoteFSSnapDriverDistributed):
         partitions = psutil.disk_partitions(all=True)
         for p in partitions:
             if mount_path == p.mountpoint:
-                if p.device.startswith("quobyte@"):
+                if (p.device.startswith("quobyte@") or
+                        (p.fstype == "fuse.quobyte")):
                     try:
                         statresult = os.stat(mount_path)
                         if statresult.st_size == 0:

releasenotes/notes/bug-1730933-1bb0272e3c51eed3.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The Quobyte Cinder driver now supports identifying Quobyte mounts
+    via the mounts fstype field.