ceph/qa/tasks/cephfs/test_subvolume.py

   1 import logging
   2
   3 from tasks.cephfs.cephfs_test_case import CephFSTestCase
   4 from teuthology.exceptions import CommandFailedError
   5
   6 log = logging.getLogger(__name__)
   7
   8
   9 class TestSubvolume(CephFSTestCase):
  10     CLIENTS_REQUIRED = 1
  11     MDSS_REQUIRED = 1
  12
  13     def setUp(self):
  14         super().setUp()
  15         self.setup_test()
  16
  17     def tearDown(self):
  18         # clean up
  19         self.cleanup_test()
  20         super().tearDown()
  21
  22     def setup_test(self):
  23         self.mount_a.run_shell(['mkdir', 'group'])
  24         self.mount_a.run_shell(['mkdir', 'group/subvol1'])
  25         self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
  26                                 '-v', '1', 'group/subvol1'])
  27         self.mount_a.run_shell(['mv', 'group/subvol1', 'group/subvol2'])
  28
  29     def cleanup_test(self):
  30         self.mount_a.run_shell(['rm', '-rf', 'group'])
  31
  32     def test_subvolume_move_out_file(self):
  33         """
  34         To verify that file can't be moved out of subvolume
  35         """
  36         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
  37
  38         # file can't be moved out of a subvolume
  39         with self.assertRaises(CommandFailedError):
  40             self.mount_a.run_shell(['rename', 'group/subvol2/file1',
  41                                     'group/file1', 'group/subvol2/file1'])
  42
  43
  44     def test_subvolume_move_in_file(self):
  45         """
  46         To verify that file can't be moved into subvolume
  47         """
  48         # file can't be moved into a subvolume
  49         self.mount_a.run_shell(['touch', 'group/file2'])
  50         with self.assertRaises(CommandFailedError):
  51             self.mount_a.run_shell(['rename', 'group/file2',
  52                                     'group/subvol2/file2', 'group/file2'])
  53
  54     def test_subvolume_hardlink_to_outside(self):
  55         """
  56         To verify that file can't be hardlinked to outside subvolume
  57         """
  58         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
  59
  60         # create hard link within subvolume
  61         self.mount_a.run_shell(['ln',
  62                                 'group/subvol2/file1', 'group/subvol2/file1_'])
  63
  64         # hard link can't be created out of subvolume
  65         with self.assertRaises(CommandFailedError):
  66             self.mount_a.run_shell(['ln',
  67                                     'group/subvol2/file1', 'group/file1_'])
  68
  69     def test_subvolume_hardlink_to_inside(self):
  70         """
  71         To verify that file can't be hardlinked to inside subvolume
  72         """
  73         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
  74
  75         # create hard link within subvolume
  76         self.mount_a.run_shell(['ln',
  77                                 'group/subvol2/file1', 'group/subvol2/file1_'])
  78
  79         # hard link can't be created inside subvolume
  80         self.mount_a.run_shell(['touch', 'group/file2'])
  81         with self.assertRaises(CommandFailedError):
  82             self.mount_a.run_shell(['ln',
  83                                     'group/file2', 'group/subvol2/file2_'])
  84
  85     def test_subvolume_snapshot_inside_subvolume_subdir(self):
  86         """
  87         To verify that snapshot can't be taken for a subvolume subdir
  88         """
  89         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
  90
  91         # create snapshot at subvolume root
  92         self.mount_a.run_shell(['mkdir', 'group/subvol2/.snap/s1'])
  93
  94         # can't create snapshot in a descendent dir of subvolume
  95         self.mount_a.run_shell(['mkdir', 'group/subvol2/dir'])
  96         with self.assertRaises(CommandFailedError):
  97             self.mount_a.run_shell(['mkdir', 'group/subvol2/dir/.snap/s2'])
  98
  99         # clean up
 100         self.mount_a.run_shell(['rmdir', 'group/subvol2/.snap/s1'])
 101
 102     def test_subvolume_file_move_across_subvolumes(self):
 103         """
 104         To verify that file can't be moved across subvolumes
 105         """
 106         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
 107
 108         # create another subvol
 109         self.mount_a.run_shell(['mkdir', 'group/subvol3'])
 110         self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
 111                                 '-v', '1', 'group/subvol3'])
 112
 113         # can't move file across subvolumes
 114         with self.assertRaises(CommandFailedError):
 115             self.mount_a.run_shell(['rename', 'group/subvol2/file1',
 116                                     'group/subvol3/file1',
 117                                     'group/subvol2/file1'])
 118
 119     def test_subvolume_hardlink_across_subvolumes(self):
 120         """
 121         To verify that hardlink can't be created across subvolumes
 122         """
 123         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
 124
 125         # create another subvol
 126         self.mount_a.run_shell(['mkdir', 'group/subvol3'])
 127         self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
 128                                 '-v', '1', 'group/subvol3'])
 129
 130         # can't create hard link across subvolumes
 131         with self.assertRaises(CommandFailedError):
 132             self.mount_a.run_shell(['ln', 'group/subvol2/file1',
 133                                     'group/subvol3/file1'])
 134
 135     def test_subvolume_create_subvolume_inside_subvolume(self):
 136         """
 137         To verify that subvolume can't be created inside a subvolume
 138         """
 139         # can't create subvolume inside a subvolume
 140         self.mount_a.run_shell(['mkdir', 'group/subvol2/dir'])
 141         with self.assertRaises(CommandFailedError):
 142             self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
 143                                     '-v', '1', 'group/subvol2/dir'])
 144
 145     def test_subvolume_create_snapshot_inside_new_subvolume_parent(self):
 146         """
 147         To verify that subvolume can't be created inside a new subvolume parent
 148         """
 149         self.mount_a.run_shell(['touch', 'group/subvol2/file1'])
 150
 151         # clear subvolume flag
 152         self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
 153                                 '-v', '0', 'group/subvol2'])
 154
 155         # create a snap
 156         self.mount_a.run_shell(['mkdir', 'group/subvol2/dir'])
 157         self.mount_a.run_shell(['mkdir', 'group/subvol2/dir/.snap/s2'])
 158
 159         # override subdir subvolume with parent subvolume
 160         self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
 161                                 '-v', '1', 'group/subvol2/dir'])
 162         self.mount_a.run_shell(['setfattr', '-n', 'ceph.dir.subvolume',
 163                                 '-v', '1', 'group/subvol2'])
 164
 165         # can't create a snap in a subdir of a subvol parent
 166         with self.assertRaises(CommandFailedError):
 167             self.mount_a.run_shell(['mkdir', 'group/subvol2/dir/.snap/s3'])
 168
 169         # clean up
 170         self.mount_a.run_shell(['rmdir', 'group/subvol2/dir/.snap/s2'])