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import os
import pytest
from copy import deepcopy
from mock.mock import patch, call
from ceph_volume import process
from ceph_volume.api import lvm as api
from ceph_volume.devices.lvm import zap
class TestZap(object):
def test_invalid_osd_id_passed(self):
with pytest.raises(SystemExit):
zap.Zap(argv=['--osd-id', 'foo']).main()
class TestFindAssociatedDevices(object):
def test_no_lvs_found_that_match_id(self, monkeypatch, device_info):
tags = 'ceph.osd_id=9,ceph.journal_uuid=x,ceph.type=data'
osd = api.Volume(lv_name='volume1', lv_uuid='y', vg_name='vg',
lv_tags=tags, lv_path='/dev/VolGroup/lv')
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kwargs: {})
with pytest.raises(RuntimeError):
zap.find_associated_devices(osd_id=10)
def test_no_lvs_found_that_match_fsid(self, monkeypatch, device_info):
tags = 'ceph.osd_id=9,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,'+\
'ceph.type=data'
osd = api.Volume(lv_name='volume1', lv_uuid='y', lv_tags=tags,
vg_name='vg', lv_path='/dev/VolGroup/lv')
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kwargs: {})
with pytest.raises(RuntimeError):
zap.find_associated_devices(osd_fsid='aaaa-lkjh')
def test_no_lvs_found_that_match_id_fsid(self, monkeypatch, device_info):
tags = 'ceph.osd_id=9,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,'+\
'ceph.type=data'
osd = api.Volume(lv_name='volume1', lv_uuid='y', vg_name='vg',
lv_tags=tags, lv_path='/dev/VolGroup/lv')
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kwargs: {})
with pytest.raises(RuntimeError):
zap.find_associated_devices(osd_id='9', osd_fsid='aaaa-lkjh')
def test_no_ceph_lvs_found(self, monkeypatch):
osd = api.Volume(lv_name='volume1', lv_uuid='y', lv_tags='',
lv_path='/dev/VolGroup/lv')
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kwargs: {})
with pytest.raises(RuntimeError):
zap.find_associated_devices(osd_id=100)
def test_lv_is_matched_id(self, monkeypatch):
tags = 'ceph.osd_id=0,ceph.journal_uuid=x,ceph.type=data'
osd = api.Volume(lv_name='volume1', lv_uuid='y', vg_name='',
lv_path='/dev/VolGroup/lv', lv_tags=tags)
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kw: volumes)
monkeypatch.setattr(process, 'call', lambda x, **kw: ('', '', 0))
result = zap.find_associated_devices(osd_id='0')
assert result[0].path == '/dev/VolGroup/lv'
def test_lv_is_matched_fsid(self, monkeypatch):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,' +\
'ceph.type=data'
osd = api.Volume(lv_name='volume1', lv_uuid='y', vg_name='',
lv_path='/dev/VolGroup/lv', lv_tags=tags)
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kw: deepcopy(volumes))
monkeypatch.setattr(process, 'call', lambda x, **kw: ('', '', 0))
result = zap.find_associated_devices(osd_fsid='asdf-lkjh')
assert result[0].path == '/dev/VolGroup/lv'
def test_lv_is_matched_id_fsid(self, monkeypatch):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,' +\
'ceph.type=data'
osd = api.Volume(lv_name='volume1', lv_uuid='y', vg_name='',
lv_path='/dev/VolGroup/lv', lv_tags=tags)
volumes = []
volumes.append(osd)
monkeypatch.setattr(zap.api, 'get_lvs', lambda **kw: volumes)
monkeypatch.setattr(process, 'call', lambda x, **kw: ('', '', 0))
result = zap.find_associated_devices(osd_id='0', osd_fsid='asdf-lkjh')
assert result[0].path == '/dev/VolGroup/lv'
class TestEnsureAssociatedLVs(object):
def test_nothing_is_found(self):
volumes = []
result = zap.ensure_associated_lvs(volumes)
assert result == []
def test_data_is_found(self, fake_call):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,ceph.type=data'
osd = api.Volume(
lv_name='volume1', lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/data', lv_tags=tags)
volumes = []
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert result == ['/dev/VolGroup/data']
def test_block_is_found(self, fake_call):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,ceph.type=block'
osd = api.Volume(
lv_name='volume1', lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/block', lv_tags=tags)
volumes = []
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert result == ['/dev/VolGroup/block']
def test_success_message_for_fsid(self, factory, is_root, capsys):
cli_zap = zap.Zap([])
args = factory(devices=[], osd_id=None, osd_fsid='asdf-lkjh')
cli_zap.args = args
cli_zap.zap()
out, err = capsys.readouterr()
assert "Zapping successful for OSD: asdf-lkjh" in err
def test_success_message_for_id(self, factory, is_root, capsys):
cli_zap = zap.Zap([])
args = factory(devices=[], osd_id='1', osd_fsid=None)
cli_zap.args = args
cli_zap.zap()
out, err = capsys.readouterr()
assert "Zapping successful for OSD: 1" in err
def test_block_and_partition_are_found(self, monkeypatch):
monkeypatch.setattr(zap.disk, 'get_device_from_partuuid', lambda x: '/dev/sdb1')
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,ceph.type=block'
osd = api.Volume(
lv_name='volume1', lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/block', lv_tags=tags)
volumes = []
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert '/dev/sdb1' in result
assert '/dev/VolGroup/block' in result
def test_journal_is_found(self, fake_call):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,ceph.type=journal'
osd = api.Volume(
lv_name='volume1', lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/lv', lv_tags=tags)
volumes = []
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert result == ['/dev/VolGroup/lv']
def test_multiple_journals_are_found(self):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,ceph.type=journal'
volumes = []
for i in range(3):
osd = api.Volume(
lv_name='volume%s' % i, lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/lv%s' % i, lv_tags=tags)
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert '/dev/VolGroup/lv0' in result
assert '/dev/VolGroup/lv1' in result
assert '/dev/VolGroup/lv2' in result
def test_multiple_dbs_are_found(self):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.journal_uuid=x,ceph.type=db'
volumes = []
for i in range(3):
osd = api.Volume(
lv_name='volume%s' % i, lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/lv%s' % i, lv_tags=tags)
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert '/dev/VolGroup/lv0' in result
assert '/dev/VolGroup/lv1' in result
assert '/dev/VolGroup/lv2' in result
def test_multiple_wals_are_found(self):
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.wal_uuid=x,ceph.type=wal'
volumes = []
for i in range(3):
osd = api.Volume(
lv_name='volume%s' % i, lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/lv%s' % i, lv_tags=tags)
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert '/dev/VolGroup/lv0' in result
assert '/dev/VolGroup/lv1' in result
assert '/dev/VolGroup/lv2' in result
def test_multiple_backing_devs_are_found(self):
volumes = []
for _type in ['journal', 'db', 'wal']:
tags = 'ceph.osd_id=0,ceph.osd_fsid=asdf-lkjh,ceph.wal_uuid=x,ceph.type=%s' % _type
osd = api.Volume(
lv_name='volume%s' % _type, lv_uuid='y', vg_name='', lv_path='/dev/VolGroup/lv%s' % _type, lv_tags=tags)
volumes.append(osd)
result = zap.ensure_associated_lvs(volumes)
assert '/dev/VolGroup/lvjournal' in result
assert '/dev/VolGroup/lvwal' in result
assert '/dev/VolGroup/lvdb' in result
@patch('ceph_volume.devices.lvm.zap.api.get_lvs')
def test_ensure_associated_lvs(self, m_get_lvs):
zap.ensure_associated_lvs([], lv_tags={'ceph.osd_id': '1'})
calls = [
call(tags={'ceph.type': 'journal', 'ceph.osd_id': '1'}),
call(tags={'ceph.type': 'db', 'ceph.osd_id': '1'}),
call(tags={'ceph.type': 'wal', 'ceph.osd_id': '1'})
]
m_get_lvs.assert_has_calls(calls, any_order=True)
class TestWipeFs(object):
def setup(self):
os.environ['CEPH_VOLUME_WIPEFS_INTERVAL'] = '0'
def test_works_on_second_try(self, stub_call):
os.environ['CEPH_VOLUME_WIPEFS_TRIES'] = '2'
stub_call([('wiping /dev/sda', '', 1), ('', '', 0)])
result = zap.wipefs('/dev/sda')
assert result is None
def test_does_not_work_after_several_tries(self, stub_call):
os.environ['CEPH_VOLUME_WIPEFS_TRIES'] = '2'
stub_call([('wiping /dev/sda', '', 1), ('', '', 1)])
with pytest.raises(RuntimeError):
zap.wipefs('/dev/sda')
def test_does_not_work_default_tries(self, stub_call):
stub_call([('wiping /dev/sda', '', 1)]*8)
with pytest.raises(RuntimeError):
zap.wipefs('/dev/sda')
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