Remove FileStore support

Remove support for creating FileStore OSDs. Also prevent upgrade
attempts to Reef if a FileStore OSD is detected

Change-Id: I9609bc0222365cb1f4059312b466a12ef4e0397f

actions/add_disk.py

@@ -115,7 +115,6 @@ def add_device(request, device_path, bucket=None,
                              ceph_hooks.get_journal_devices(),
                              hookenv.config('ignore-device-errors'),
                              hookenv.config('osd-encrypt'),
-                             charms_ceph.utils.use_bluestore(),
                              hookenv.config('osd-encrypt-keymanager'),
                              osd_id)
 

config.yaml

@@ -90,15 +90,6 @@ options:
       where the specified journal device does not exist on a node.
       .
       Only supported with ceph >= 0.48.3.
-  bluestore:
-    type: boolean
-    default: True
-    description: |
-      Enable BlueStore storage backend for OSD devices.
-      .
-      Only supported with ceph >= 12.2.0.
-      .
-      Setting to 'False' will use FileStore as the storage format.
   bluestore-wal:
     type: string
     default:

hooks/ceph_hooks.py

@@ -26,6 +26,8 @@ import subprocess
 import sys
 import traceback
 
+import utils
+
 sys.path.append('lib')
 import charms_ceph.utils as ceph
 from charmhelpers.core import hookenv
@@ -147,6 +149,14 @@ def check_for_upgrade():
                                                     'distro')
     new_version_os = get_os_codename_install_source(hookenv.config('source'))
 
+    # If the new version is reef, and we detect that we are running FileStore
+    # bail out with an error message
+    filestore_osds = utils.find_filestore_osds()
+    if new_version == 'reef' and filestore_osds:
+        log("Refuse to upgrade to reef with FileStore OSDs present: {}".format(
+            filestore_osds), level=ERROR)
+        return
+
     # May be in a previous upgrade that was failed if the directories
     # still need an ownership update. Check this condition.
     resuming_upgrade = ceph.dirs_need_ownership_update('osd')
@@ -464,7 +474,6 @@ def get_ceph_context(upgrading=False):
         'dio': str(config('use-direct-io')).lower(),
         'short_object_len': use_short_objects(),
         'upgrade_in_progress': upgrading,
-        'bluestore': ceph.use_bluestore(),
         'bluestore_experimental': cmp_pkgrevno('ceph', '12.1.0') < 0,
         'bluestore_block_wal_size': config('bluestore-block-wal-size'),
         'bluestore_block_db_size': config('bluestore-block-db-size'),
@@ -619,13 +628,11 @@ def prepare_disks_and_activate():
         log('ceph bootstrapped, rescanning disks')
         emit_cephconf()
         ceph.udevadm_settle()
-        bluestore = ceph.use_bluestore()
         for dev in get_devices():
             ceph.osdize(dev, config('osd-format'),
                         osd_journal,
                         config('ignore-device-errors'),
                         config('osd-encrypt'),
-                        bluestore,
                         config('osd-encrypt-keymanager'))
             # Make it fast!
             if config('autotune'):

hooks/utils.py

@@ -692,3 +692,26 @@ def get_parent_device(dev):
             return '/dev/' + child['name']
 
     return dev
+
+
+def find_filestore_osds():
+    # Path to Ceph OSD
+    osd_path = '/var/lib/ceph/osd'
+
+    # Search through OSD directories in path starting with 'ceph-'
+    dirs = [d for d in os.listdir(osd_path)
+            if d.startswith('ceph-')
+            and os.path.isdir(os.path.join(osd_path, d))]
+
+    found = []
+    for dir in dirs:
+        # Construct the full path
+        type_file_path = os.path.join(osd_path, dir, 'type')
+        # Open and read the type file
+        with open(type_file_path, 'r') as f:
+            content = f.read()
+        # Check if the content includes 'filestore'
+        if 'filestore' in content:
+            found.append(dir)
+
+    return found

lib/charms_ceph/utils.py

@@ -1324,16 +1324,6 @@ def systemd():
     return CompareHostReleases(lsb_release()['DISTRIB_CODENAME']) >= 'vivid'
 
 
-def use_bluestore():
-    """Determine whether bluestore should be used for OSD's
-
-    :returns: whether bluestore disk format should be used
-    :rtype: bool"""
-    if cmp_pkgrevno('ceph', '12.2.0') < 0:
-        return False
-    return config('bluestore')
-
-
 def bootstrap_monitor_cluster(secret):
     """Bootstrap local Ceph mon into the Ceph cluster
 
@@ -1551,21 +1541,21 @@ def get_devices(name):
 
 
 def osdize(dev, osd_format, osd_journal, ignore_errors=False, encrypt=False,
-           bluestore=False, key_manager=CEPH_KEY_MANAGER, osd_id=None):
+           key_manager=CEPH_KEY_MANAGER, osd_id=None):
     if dev.startswith('/dev'):
         osdize_dev(dev, osd_format, osd_journal,
                    ignore_errors, encrypt,
-                   bluestore, key_manager, osd_id)
+                   key_manager, osd_id)
     else:
         if cmp_pkgrevno('ceph', '14.0.0') >= 0:
             log("Directory backed OSDs can not be created on Nautilus",
                 level=WARNING)
             return
-        osdize_dir(dev, encrypt, bluestore)
+        osdize_dir(dev, encrypt)
 
 
 def osdize_dev(dev, osd_format, osd_journal, ignore_errors=False,
-               encrypt=False, bluestore=False, key_manager=CEPH_KEY_MANAGER,
+               encrypt=False, key_manager=CEPH_KEY_MANAGER,
                osd_id=None):
     """
     Prepare a block device for use as a Ceph OSD
@@ -1579,7 +1569,6 @@ def osdize_dev(dev, osd_format, osd_journal, ignore_errors=False,
     :param: ignore_errors: Don't fail in the event of any errors during
                            processing
     :param: encrypt: Encrypt block devices using 'key_manager'
-    :param: bluestore: Use bluestore native Ceph block device format
     :param: key_manager: Key management approach for encryption keys
     :raises subprocess.CalledProcessError: in the event that any supporting
                                            subprocess operation failed
@@ -1630,15 +1619,13 @@ def osdize_dev(dev, osd_format, osd_journal, ignore_errors=False,
             cmd = _ceph_volume(dev,
                                osd_journal,
                                encrypt,
-                               bluestore,
                                key_manager,
                                osd_id)
         else:
             cmd = _ceph_disk(dev,
                              osd_format,
                              osd_journal,
-                             encrypt,
+                             encrypt)
-                             bluestore)
 
         try:
             status_set('maintenance', 'Initializing device {}'.format(dev))
@@ -1669,7 +1656,7 @@ def osdize_dev(dev, osd_format, osd_journal, ignore_errors=False,
         db.flush()
 
 
-def _ceph_disk(dev, osd_format, osd_journal, encrypt=False, bluestore=False):
+def _ceph_disk(dev, osd_format, osd_journal, encrypt=False):
     """
     Prepare a device for usage as a Ceph OSD using ceph-disk
 
@@ -1677,7 +1664,6 @@ def _ceph_disk(dev, osd_format, osd_journal, encrypt=False, bluestore=False):
                  The function looks up realpath of the device
     :param: osd_journal: List of block devices to use for OSD journals
     :param: encrypt: Use block device encryption (unsupported)
-    :param: bluestore: Use bluestore storage for OSD
     :returns: list. 'ceph-disk' command and required parameters for
                     execution by check_call
     """
@@ -1686,12 +1672,6 @@ def _ceph_disk(dev, osd_format, osd_journal, encrypt=False, bluestore=False):
     if encrypt:
         cmd.append('--dmcrypt')
 
-    if osd_format and not bluestore:
-        cmd.append('--fs-type')
-        cmd.append(osd_format)
-
-    # NOTE(jamespage): enable experimental bluestore support
-    if use_bluestore():
     cmd.append('--bluestore')
     wal = get_devices('bluestore-wal')
     if wal:
@@ -1703,8 +1683,6 @@ def _ceph_disk(dev, osd_format, osd_journal, encrypt=False, bluestore=False):
         cmd.append('--block.db')
         least_used_db = find_least_used_utility_device(db)
         cmd.append(least_used_db)
-    elif cmp_pkgrevno('ceph', '12.1.0') >= 0 and not bluestore:
-        cmd.append('--filestore')
 
     cmd.append(os.path.realpath(dev))
 
@@ -1715,8 +1693,8 @@ def _ceph_disk(dev, osd_format, osd_journal, encrypt=False, bluestore=False):
     return cmd
 
 
-def _ceph_volume(dev, osd_journal, encrypt=False, bluestore=False,
+def _ceph_volume(dev, osd_journal, encrypt=False, key_manager=CEPH_KEY_MANAGER,
-                 key_manager=CEPH_KEY_MANAGER, osd_id=None):
+                 osd_id=None):
     """
     Prepare and activate a device for usage as a Ceph OSD using ceph-volume.
 
@@ -1726,7 +1704,6 @@ def _ceph_volume(dev, osd_journal, encrypt=False, bluestore=False,
     :param: dev: Full path to use for OSD block device setup
     :param: osd_journal: List of block devices to use for OSD journals
     :param: encrypt: Use block device encryption
-    :param: bluestore: Use bluestore storage for OSD
     :param: key_manager: dm-crypt Key Manager to use
     :param: osd_id: The OSD-id to recycle, or None to create a new one
     :raises subprocess.CalledProcessError: in the event that any supporting
@@ -1739,13 +1716,8 @@ def _ceph_volume(dev, osd_journal, encrypt=False, bluestore=False,
     osd_fsid = str(uuid.uuid4())
     cmd.append('--osd-fsid')
     cmd.append(osd_fsid)
-
-    if bluestore:
     cmd.append('--bluestore')
     main_device_type = 'block'
-    else:
-        cmd.append('--filestore')
-        main_device_type = 'data'
 
     if encrypt and key_manager == CEPH_KEY_MANAGER:
         cmd.append('--dmcrypt')
@@ -1753,19 +1725,6 @@ def _ceph_volume(dev, osd_journal, encrypt=False, bluestore=False,
     if osd_id is not None:
         cmd.extend(['--osd-id', str(osd_id)])
 
-    # On-disk journal volume creation
-    if not osd_journal and not bluestore:
-        journal_lv_type = 'journal'
-        cmd.append('--journal')
-        cmd.append(_allocate_logical_volume(
-            dev=dev,
-            lv_type=journal_lv_type,
-            osd_fsid=osd_fsid,
-            size='{}M'.format(calculate_volume_size('journal')),
-            encrypt=encrypt,
-            key_manager=key_manager)
-        )
-
     cmd.append('--data')
     cmd.append(_allocate_logical_volume(dev=dev,
                                         lv_type=main_device_type,
@@ -1773,7 +1732,6 @@ def _ceph_volume(dev, osd_journal, encrypt=False, bluestore=False,
                                         encrypt=encrypt,
                                         key_manager=key_manager))
 
-    if bluestore:
     for extra_volume in ('wal', 'db'):
         devices = get_devices('bluestore-{}'.format(extra_volume))
         if devices:
@@ -1790,20 +1748,6 @@ def _ceph_volume(dev, osd_journal, encrypt=False, bluestore=False,
                 key_manager=key_manager)
             )
 
-    elif osd_journal:
-        cmd.append('--journal')
-        least_used = find_least_used_utility_device(osd_journal,
-                                                    lvs=True)
-        cmd.append(_allocate_logical_volume(
-            dev=least_used,
-            lv_type='journal',
-            osd_fsid=osd_fsid,
-            size='{}M'.format(calculate_volume_size('journal')),
-            shared=True,
-            encrypt=encrypt,
-            key_manager=key_manager)
-        )
-
     return cmd
 
 
@@ -2040,7 +1984,7 @@ def _allocate_logical_volume(dev, lv_type, osd_fsid,
     return "{}/{}".format(vg_name, lv_name)
 
 
-def osdize_dir(path, encrypt=False, bluestore=False):
+def osdize_dir(path, encrypt=False):
     """Ask ceph-disk to prepare a directory to become an OSD.
 
     :param path: str. The directory to osdize
@@ -2077,12 +2021,8 @@ def osdize_dir(path, encrypt=False, bluestore=False):
     if cmp_pkgrevno('ceph', '0.60') >= 0:
         if encrypt:
             cmd.append('--dmcrypt')
-
-    # NOTE(icey): enable experimental bluestore support
-    if cmp_pkgrevno('ceph', '10.2.0') >= 0 and bluestore:
     cmd.append('--bluestore')
-    elif cmp_pkgrevno('ceph', '12.1.0') >= 0 and not bluestore:
+
-        cmd.append('--filestore')
     log("osdize dir cmd: {}".format(cmd))
     subprocess.check_call(cmd)
 

templates/ceph.conf

@@ -44,7 +44,7 @@ osd crush initial weight = {{ crush_initial_weight }}
 {% endfor %}
 {% endif %}
 
-{% if bluestore_experimental and bluestore -%}
+{% if bluestore_experimental -%}
 enable experimental unrecoverable data corrupting features = bluestore rocksdb
 {%- endif %}
 
@@ -66,7 +66,6 @@ keyring = /var/lib/ceph/mds/$cluster-$id/keyring
 [osd]
 keyring = /var/lib/ceph/osd/$cluster-$id/keyring
 
-{% if bluestore -%}
 {% if not bluestore_experimental -%}
 osd objectstore = bluestore
 {%- endif %}
@@ -77,11 +76,7 @@ bluestore block wal size = {{ bluestore_block_wal_size }}
 bluestore block db size = {{ bluestore_block_db_size }}
 {%- endif %}
 {% include 'section-ceph-bluestore-compression' %}
-{%- else %}
+
-osd journal size = {{ osd_journal_size }}
-filestore xattr use omap = true
-journal dio = {{ dio }}
-{%- endif %}
 bdev enable discard = {{ bdev_discard }}
 bdev async discard = {{ bdev_discard }}
 

unit_tests/test_actions_add_disk.py

@@ -25,17 +25,14 @@ class AddDiskActionTests(CharmTestCase):
             add_disk, ['hookenv', 'kv'])
         self.kv.return_value = self.kv
 
-    @mock.patch.object(add_disk.charms_ceph.utils, 'use_bluestore')
     @mock.patch.object(add_disk.ceph_hooks, 'get_journal_devices')
     @mock.patch.object(add_disk.charms_ceph.utils, 'osdize')
-    def test_add_device(self, mock_osdize, mock_get_journal_devices,
+    def test_add_device(self, mock_osdize, mock_get_journal_devices):
-                        mock_use_bluestore):
 
         def fake_config(key):
             return {
                 'ignore-device-errors': True,
                 'osd-encrypt': True,
-                'bluestore': True,
                 'osd-encrypt-keymanager': True,
                 'autotune': False,
             }.get(key)
@@ -43,7 +40,6 @@ class AddDiskActionTests(CharmTestCase):
         self.hookenv.config.side_effect = fake_config
         mock_get_journal_devices.return_value = ''
         self.hookenv.relation_ids.return_value = ['ceph:0']
-        mock_use_bluestore.return_value = True
 
         db = mock.MagicMock()
         self.kv.return_value = db
@@ -56,7 +52,7 @@ class AddDiskActionTests(CharmTestCase):
                          relation_settings={'bootstrapped-osds': 1})
         self.hookenv.relation_set.assert_has_calls([call])
         mock_osdize.assert_has_calls([mock.call('/dev/myosddev',
-                                                None, '', True, True, True,
+                                                None, '', True, True,
                                                 True, None)])
 
         piter = add_disk.PartitionIter(['/dev/cache'], 100, ['/dev/myosddev'])

unit_tests/test_ceph_hooks.py

@@ -68,7 +68,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_public_addr', lambda *args: "10.0.0.1")
     @patch.object(ceph_hooks, 'get_cluster_addr', lambda *args: "10.1.0.1")
     @patch.object(ceph_hooks, 'cmp_pkgrevno', lambda *args: 1)
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: False)
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
@@ -99,7 +98,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': False,
                     'bluestore_experimental': False,
                     'bluestore_block_wal_size': 0,
                     'bluestore_block_db_size': 0}
@@ -116,7 +114,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: False)
     @patch.object(ceph, 'config')
     @patch.object(ceph_hooks, 'config')
     def test_get_ceph_context_invalid_bdev_enable_discard(self, mock_config,
@@ -146,7 +143,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': False,
-                    'bluestore': False,
                     'bluestore_experimental': False,
                     'bluestore_block_wal_size': 0,
                     'bluestore_block_db_size': 0}
@@ -161,7 +157,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_cluster_addr', lambda *args: "10.1.0.1")
     @patch.object(ceph_hooks, 'cmp_pkgrevno',
                   lambda pkg, ver: -1 if ver == '12.1.0' else 1)
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: False)
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
@@ -192,7 +187,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': False,
                     'bluestore_experimental': True,
                     'bluestore_block_wal_size': 0,
                     'bluestore_block_db_size': 0}
@@ -206,7 +200,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_public_addr', lambda *args: "10.0.0.1")
     @patch.object(ceph_hooks, 'get_cluster_addr', lambda *args: "10.1.0.1")
     @patch.object(ceph_hooks, 'cmp_pkgrevno', lambda *args: 1)
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: True)
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
@@ -244,7 +237,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': True,
                     'bluestore_experimental': False,
                     'bluestore_block_wal_size': BLUESTORE_WAL_TEST_SIZE,
                     'bluestore_block_db_size': BLUESTORE_DB_TEST_SIZE}
@@ -259,7 +251,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_cluster_addr', lambda *args: "10.1.0.1")
     @patch.object(ceph_hooks, 'cmp_pkgrevno',
                   lambda pkg, ver: -1 if ver == '12.1.0' else 1)
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: True)
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
@@ -268,7 +259,6 @@ class CephHooksTestCase(unittest.TestCase):
     def test_get_ceph_context_bluestore_old(self, mock_config, mock_config2):
         self.maxDiff = None
         config = copy.deepcopy(CHARM_CONFIG)
-        config['bluestore'] = True
         config['bluestore-block-wal-size'] = BLUESTORE_WAL_TEST_SIZE
         config['bluestore-block-db-size'] = BLUESTORE_DB_TEST_SIZE
         mock_config.side_effect = lambda key: config[key]
@@ -294,7 +284,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': True,
                     'bluestore_experimental': True,
                     'bluestore_block_wal_size': BLUESTORE_WAL_TEST_SIZE,
                     'bluestore_block_db_size': BLUESTORE_DB_TEST_SIZE}
@@ -308,7 +297,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_public_addr', lambda *args: "10.0.0.1")
     @patch.object(ceph_hooks, 'get_cluster_addr', lambda *args: "10.1.0.1")
     @patch.object(ceph_hooks, 'cmp_pkgrevno', lambda *args: 1)
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: False)
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
@@ -341,7 +329,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': False,
                     'bluestore_experimental': False,
                     'bluestore_block_wal_size': 0,
                     'bluestore_block_db_size': 0}
@@ -355,7 +342,6 @@ class CephHooksTestCase(unittest.TestCase):
     @patch.object(ceph_hooks, 'get_public_addr', lambda *args: "10.0.0.1")
     @patch.object(ceph_hooks, 'get_cluster_addr', lambda *args: "10.1.0.1")
     @patch.object(ceph_hooks, 'cmp_pkgrevno', lambda *args: 1)
-    @patch.object(ceph_utils, 'use_bluestore', lambda *args: False)
     @patch.object(ceph_hooks, 'get_mon_hosts', lambda *args: ['10.0.0.1',
                                                               '10.0.0.2'])
     @patch.object(ceph_hooks, 'get_networks', lambda *args: "")
@@ -390,7 +376,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': False,
                     'bluestore_experimental': False,
                     'bluestore_block_wal_size': 0,
                     'bluestore_block_db_size': 0}
@@ -440,7 +425,6 @@ class CephHooksTestCase(unittest.TestCase):
                     'upgrade_in_progress': False,
                     'use_syslog': 'true',
                     'bdev_discard': True,
-                    'bluestore': False,
                     'bluestore_experimental': False,
                     'bluestore_block_wal_size': 0,
                     'bluestore_block_db_size': 0,

unit_tests/test_upgrade.py

@@ -15,7 +15,9 @@ class UpgradeRollingTestCase(CharmTestCase):
     @patch('ceph_hooks.emit_cephconf')
     @patch('ceph_hooks.hookenv')
     @patch('ceph_hooks.ceph.roll_osd_cluster')
-    def test_check_for_upgrade(self, roll_osd_cluster, hookenv,
+    @patch('utils.find_filestore_osds')
+    def test_check_for_upgrade(self, find_filestore_osds,
+                               roll_osd_cluster, hookenv,
                                emit_cephconf, version, exists,
                                dirs_need_ownership_update,
                                notify_mon_of_upgrade):
@@ -47,7 +49,9 @@ class UpgradeRollingTestCase(CharmTestCase):
     @patch('ceph_hooks.emit_cephconf')
     @patch('ceph_hooks.hookenv')
     @patch('ceph_hooks.ceph.roll_osd_cluster')
-    def test_resume_failed_upgrade(self, roll_osd_cluster,
+    @patch('utils.find_filestore_osds')
+    def test_resume_failed_upgrade(self, find_filestore_osds,
+                                   roll_osd_cluster,
                                    hookenv, emit_cephconf, version,
                                    exists,
                                    dirs_need_ownership_update,
@@ -94,7 +98,9 @@ class UpgradeRollingTestCase(CharmTestCase):
     @patch('ceph_hooks.ceph.is_bootstrapped')
     @patch('ceph_hooks.hookenv')
     @patch('ceph_hooks.ceph.roll_monitor_cluster')
-    def test_check_for_upgrade_from_pike_to_queens(self, roll_monitor_cluster,
+    @patch('utils.find_filestore_osds')
+    def test_check_for_upgrade_from_pike_to_queens(self, find_filestore_osds,
+                                                   roll_monitor_cluster,
                                                    hookenv, is_bootstrapped,
                                                    add_source,
                                                    dirs_need_ownership_update,
@@ -116,7 +122,9 @@ class UpgradeRollingTestCase(CharmTestCase):
     @patch('ceph_hooks.ceph.is_bootstrapped')
     @patch('ceph_hooks.hookenv')
     @patch('ceph_hooks.ceph.roll_monitor_cluster')
-    def test_check_for_upgrade_from_rocky_to_stein(self, roll_monitor_cluster,
+    @patch('utils.find_filestore_osds')
+    def test_check_for_upgrade_from_rocky_to_stein(self, find_filestore_osds,
+                                                   roll_monitor_cluster,
                                                    hookenv, is_bootstrapped,
                                                    add_source,
                                                    dirs_need_ownership_update,
@@ -132,6 +140,30 @@ class UpgradeRollingTestCase(CharmTestCase):
         roll_monitor_cluster.assert_not_called()
         add_source.assert_called_with('cloud:bionic-stein', 'some-key')
 
+    @patch('ceph_hooks.os.path.exists')
+    @patch('ceph_hooks.ceph.dirs_need_ownership_update')
+    @patch('ceph_hooks.add_source')
+    @patch('ceph_hooks.ceph.is_bootstrapped')
+    @patch('ceph_hooks.hookenv')
+    @patch('ceph_hooks.ceph.roll_monitor_cluster')
+    @patch('utils.find_filestore_osds')
+    def test_check_for_upgrade_reef_filestore(self, find_filestore_osds,
+                                              roll_monitor_cluster,
+                                              hookenv, is_bootstrapped,
+                                              add_source,
+                                              dirs_need_ownership_update,
+                                              exists):
+        exists.return_value = True
+        is_bootstrapped.return_value = True
+        find_filestore_osds.return_value = ['ceph-0']
+        hookenv.config.side_effect = self.test_config
+        self.test_config.set('key', 'some-key')
+        self.test_config.set_previous('source', 'cloud:jammy-antelope')
+        self.test_config.set('source', 'cloud:jammy-bobcat')
+        check_for_upgrade()
+        roll_monitor_cluster.assert_not_called()
+        dirs_need_ownership_update.assert_not_called()
+
 
 class UpgradeUtilTestCase(CharmTestCase):
     @patch('ceph_hooks.relation_ids')