def single_report(self, device):
"""
Generate a report for a single device. This can be either a logical
volume in the form of vg/lv or a device with an absolute path like
/dev/sda1 or /dev/sda. Returns '{}' to denote failure.
"""
lv = api.get_first_lv(filters={'lv_path': device})
# whether the dev to reported is lv...
arg_is_vg = False
# The `device` argument can be a logical volume name or a device path.
# If it's a path that exists, use the canonical path (in particular,
# dereference symlinks); otherwise, assume it's a logical volume name
# and use it as-is.
if os.path.exists(device):
device = os.path.realpath(device)
lv = api.get_first_lv(filters={'lv_path': device})
if not lv:
# if device at given path is not LV, it might be PV...
pv = api.get_first_pv(filters={'pv_name': device})
if pv:
lv = api.get_first_lv(filters={'vg_name': pv.vg_name})
# or VG.
else:
vg_name = os.path.dirname(device)
lv = api.get_first_lv(filters={'vg_name': vg_name})
arg_is_vg = True
if not lv:
return {}
return self.create_report(lv, full_report=False, arg_is_vg=arg_is_vg)
def test_get_first_pv_single_pv(self, monkeypatch):
pv = api.PVolume(pv_name='/dev/sda', pv_uuid='0000', pv_tags={},
vg_name='vg1')
stdout = ['{};;;;;;'.format(pv.pv_name)]
monkeypatch.setattr(api.process, 'call', lambda x,**kw: (stdout, '', 0))
pv_ = api.get_first_pv()
assert isinstance(pv_, api.PVolume)
assert pv_.pv_name == pv.pv_name
def create_report_for_nonlv_device():
# bluestore will not have a journal, filestore will not have
# a block/wal/db, so we must skip if not present
if dev_type == 'data':
return
device_uuid = lv.tags.get('ceph.%s_uuid' % dev_type)
pv = api.get_first_pv(filters={'vg_name': lv.vg_name})
if device_uuid and pv:
report[osd_id].append({'tags': {'PARTUUID': device_uuid},
'type': dev_type,
'path': pv.pv_name})
def test_get_first_pv_empty(self, monkeypatch):
monkeypatch.setattr(api.process, 'call', lambda x,**kw: ('', '', 0))
assert api.get_first_pv() == []