def test_volume_accessibility(self):
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
img_id = make_uuid()
vol_id = make_uuid()
make_block_volume(env.lvm, env.sd_manifest, 1 * MB, img_id, vol_id)
self.assertTrue(os.path.isfile(env.lvm.lvPath(sd_id, vol_id)))
domain_path = os.path.join(env.sd_manifest.domaindir,
sd.DOMAIN_IMAGES,
img_id,
vol_id)
repo_path = os.path.join(env.sd_manifest.getRepoPath(),
sd_id,
sd.DOMAIN_IMAGES,
img_id,
vol_id)
self.assertNotEqual(repo_path, domain_path)
# The links to the dev are created only when producing the volume
self.assertFalse(os.path.isfile(domain_path))
self.assertFalse(os.path.isfile(repo_path))
env.sd_manifest.produceVolume(img_id, vol_id)
self.assertTrue(os.path.samefile(repo_path, domain_path))
def test_getvsize_inactive_lv(self):
# Tests the path when the device file is not present
with fake_block_env() as env:
lv_name = str(uuid.uuid4())
env.lvm.createLV(env.sd_manifest.sdUUID, lv_name, VOLSIZE / MB)
self.assertEqual(VOLSIZE,
env.sd_manifest.getVSize('<imgUUID>', lv_name))
def test_unaligned_size_raises(self):
with fake_block_env() as env:
artifacts = env.sd_manifest.get_volume_artifacts(
self.img_id, self.vol_id)
size, vol_format, disk_type, desc = BASE_PARAMS[sc.RAW_FORMAT]
size = MB + 1
self.assertRaises(se.InvalidParameterException, artifacts.create,
size, vol_format, disk_type, desc)
def test_volume_type(self, vol_type):
with fake_block_env() as env:
img_id = make_uuid()
vol_id = make_uuid()
make_block_volume(env.lvm, env.sd_manifest, 0,
img_id, vol_id, vol_type=vol_type)
vol = env.sd_manifest.produceVolume(img_id, vol_id)
self.assertEqual(vol.getVolType(), sc.type2name(vol_type))
def test_domain_metadata_io(self):
with fake_block_env() as env:
desc = 'foo'
set_domain_metaparams(env.sd_manifest, {sd.DMDK_DESCRIPTION: desc})
# Test that metadata is persisted to our temporary storage area
sd_id = env.sd_manifest.sdUUID
manifest = blockSD.BlockStorageDomainManifest(sd_id)
self.assertEqual(desc, manifest.getMetaParam(sd.DMDK_DESCRIPTION))
def test_unaligned_initial_size_raises(self):
with fake_block_env() as env:
artifacts = env.sd_manifest.get_volume_artifacts(
self.img_id, self.vol_id)
size, vol_format, disk_type, desc = BASE_PARAMS[sc.COW_FORMAT]
initial_size = size - 1
self.assertRaises(se.InvalidParameterException,
artifacts.create, size, vol_format, disk_type,
desc, initial_size=initial_size)
def test_domain_metadata_io(self):
with fake_block_env() as env:
desc = 'foo'
set_domain_metaparams(env.sd_manifest, {sd.DMDK_DESCRIPTION: desc})
# Test that metadata is persisted to our temporary storage area
sd_id = env.sd_manifest.sdUUID
manifest = blockSD.BlockStorageDomainManifest(sd_id)
self.assertEqual(desc, manifest.getMetaParam(sd.DMDK_DESCRIPTION))
def test_metaslot_selection(self, used_slots, free_slot):
with fake_block_env() as env:
for offset in used_slots:
lv = make_uuid()
sduuid = env.sd_manifest.sdUUID
env.lvm.createLV(sduuid, lv, VOLSIZE / MB)
tag = sc.TAG_PREFIX_MD + str(offset)
env.lvm.addtag(sduuid, lv, tag)
with env.sd_manifest.acquireVolumeMetadataSlot(None, 1) as mdSlot:
self.assertEqual(mdSlot, free_slot)
def test_metaslot_selection(self, used_slots, free_slot):
with fake_block_env() as env:
for offset in used_slots:
lv = make_uuid()
sduuid = env.sd_manifest.sdUUID
env.lvm.createLV(sduuid, lv, VOLSIZE / MB)
tag = sc.TAG_PREFIX_MD + str(offset)
env.lvm.addtag(sduuid, lv, tag)
with env.sd_manifest.acquireVolumeMetadataSlot(None, 1) as mdSlot:
self.assertEqual(mdSlot, free_slot)
def test_metaslot_selection(self):
with fake_block_env() as env:
lvs = ('0b6287f0-3679-4c4d-8be5-9bbfe3ec9c1f',
'ea13af29-b64a-4d1a-b35f-3e6ab15c3b04')
for lv, offset in zip(lvs, [4, 7]):
sduuid = env.sd_manifest.sdUUID
env.lvm.createLV(sduuid, lv, VOLSIZE / MB)
tag = sc.TAG_PREFIX_MD + str(offset)
env.lvm.addtag(sduuid, lv, tag)
with env.sd_manifest.acquireVolumeMetadataSlot(None, 1) as mdSlot:
self.assertEqual(mdSlot, 5)
def test_getallimages(self):
# The current behavior of getAllImages for block domains does not
# report images that contain only artifacts. This differs from the
# file implementation.
with fake_block_env() as env:
self.assertEqual(set(), env.sd_manifest.getAllImages())
artifacts = env.sd_manifest.get_volume_artifacts(
self.img_id, self.vol_id)
artifacts.create(*BASE_PARAMS[sc.RAW_FORMAT])
self.assertEqual(set(), env.sd_manifest.getAllImages())
artifacts.commit()
self.assertEqual({self.img_id}, env.sd_manifest.getAllImages())
def test_volume_type(self, vol_type):
with fake_block_env() as env:
img_id = make_uuid()
vol_id = make_uuid()
make_block_volume(env.lvm,
env.sd_manifest,
0,
img_id,
vol_id,
vol_type=vol_type)
vol = env.sd_manifest.produceVolume(img_id, vol_id)
self.assertEqual(vol.getVolType(), sc.type2name(vol_type))
def test_getallimages(self):
# The current behavior of getAllImages for block domains does not
# report images that contain only artifacts. This differs from the
# file implementation.
with fake_block_env() as env:
self.assertEqual(set(), env.sd_manifest.getAllImages())
artifacts = env.sd_manifest.get_volume_artifacts(
self.img_id, self.vol_id)
artifacts.create(*BASE_PARAMS[sc.RAW_FORMAT])
self.assertEqual(set(), env.sd_manifest.getAllImages())
artifacts.commit()
self.assertEqual({self.img_id}, env.sd_manifest.getAllImages())
def test_size_rounded_up(self):
# If the underlying device is larger the size will be updated
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
vg = env.lvm.getVG(sd_id)
expected_size = int(vg.extent_size)
requested_size = expected_size - MB
artifacts = env.sd_manifest.get_volume_artifacts(
self.img_id, self.vol_id)
artifacts.create(requested_size, sc.RAW_FORMAT,
image.SYSTEM_DISK_TYPE, 'raw_volume')
artifacts.commit()
vol = env.sd_manifest.produceVolume(self.img_id, self.vol_id)
self.assertEqual(expected_size / sc.BLOCK_SIZE, vol.getSize())
self.assertEqual(expected_size,
int(env.lvm.getLV(sd_id, self.vol_id).size))
def test_size_rounded_up(self):
# If the underlying device is larger the size will be updated
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
vg = env.lvm.getVG(sd_id)
expected_size = int(vg.extent_size)
requested_size = expected_size - MB
artifacts = env.sd_manifest.get_volume_artifacts(
self.img_id, self.vol_id)
artifacts.create(requested_size, sc.RAW_FORMAT,
image.SYSTEM_DISK_TYPE, 'raw_volume')
artifacts.commit()
vol = env.sd_manifest.produceVolume(self.img_id, self.vol_id)
self.assertEqual(expected_size / sc.BLOCK_SIZE, vol.getSize())
self.assertEqual(expected_size,
int(env.lvm.getLV(sd_id, self.vol_id).size))
def test_volume_size_alignment(self, size_param):
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
img_id = make_uuid()
vol_id = make_uuid()
make_block_volume(env.lvm, env.sd_manifest, size_param,
img_id, vol_id)
vol = env.sd_manifest.produceVolume(img_id, vol_id)
extent_size = sc.VG_EXTENT_SIZE_MB * MB
expected_size = utils.round(size_param, extent_size)
self.assertEqual(expected_size / sc.BLOCK_SIZE, vol.getSize())
self.assertEqual(expected_size,
int(env.lvm.getLV(sd_id, vol_id).size))
lv_file_size = os.stat(env.lvm.lvPath(sd_id, vol_id)).st_size
self.assertEqual(expected_size, lv_file_size)
def test_volume_size_alignment(self, size_param):
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
img_id = make_uuid()
vol_id = make_uuid()
make_block_volume(env.lvm, env.sd_manifest, size_param, img_id,
vol_id)
vol = env.sd_manifest.produceVolume(img_id, vol_id)
extent_size = sc.VG_EXTENT_SIZE_MB * MB
expected_size = utils.round(size_param, extent_size)
self.assertEqual(expected_size / sc.BLOCK_SIZE, vol.getSize())
self.assertEqual(expected_size,
int(env.lvm.getLV(sd_id, vol_id).size))
lv_file_size = os.stat(env.lvm.lvPath(sd_id, vol_id)).st_size
self.assertEqual(expected_size, lv_file_size)
def test_overwrite_blocksize(self):
metadata = {sd.DMDK_VERSION: 3,
blockSD.DMDK_LOGBLKSIZE: 2048,
blockSD.DMDK_PHYBLKSIZE: 1024}
with fake_block_env() as env:
# Replacing the metadata will not overwrite these values since they
# are set only in the manifest constructor.
env.sd_manifest.replaceMetadata(metadata)
self.assertEquals(512, env.sd_manifest.logBlkSize)
self.assertEquals(512, env.sd_manifest.phyBlkSize)
# If we supply values in the metadata used to construct the
# manifest then those values will apply.
new_manifest = blockSD.BlockStorageDomainManifest(
env.sd_manifest.sdUUID, metadata)
self.assertEquals(2048, new_manifest.logBlkSize)
self.assertEquals(1024, new_manifest.phyBlkSize)
def test_domain_structure(self):
with fake_block_env() as env:
vg_name = env.sd_manifest.sdUUID
md_path = env.lvm.lvPath(vg_name, sd.METADATA)
self.assertTrue(os.path.exists(md_path))
for lv in blockSD.SPECIAL_LVS:
self.assertEqual(lv, env.lvm.getLV(vg_name, lv).name)
images_dir = os.path.join(env.sd_manifest.domaindir,
sd.DOMAIN_IMAGES)
self.assertTrue(os.path.exists(images_dir))
# Check the storage repository
repo_path = env.sd_manifest.getRepoPath()
domain_link = os.path.join(repo_path, env.sd_manifest.sdUUID)
self.assertTrue(os.path.islink(domain_link))
self.assertEqual(env.sd_manifest.domaindir,
os.readlink(domain_link))
def test_volume_metadata_io(self):
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
img_id = make_uuid()
vol_id = make_uuid()
size_mb = sc.VG_EXTENT_SIZE_MB
size = size_mb * MB
size_blk = size_mb * MB / sc.BLOCK_SIZE
make_block_volume(env.lvm, env.sd_manifest, size, img_id, vol_id)
self.assertEqual(vol_id, env.lvm.getLV(sd_id, vol_id).name)
vol = env.sd_manifest.produceVolume(img_id, vol_id)
self.assertEqual(size_blk, vol.getSize())
desc = 'foo'
vol.setDescription(desc)
# Test that metadata is persisted to our temporary storage area
vol = env.sd_manifest.produceVolume(img_id, vol_id)
self.assertEqual(desc, vol.getDescription())
def test_domain_structure(self):
with fake_block_env() as env:
vg_name = env.sd_manifest.sdUUID
md_path = env.lvm.lvPath(vg_name, sd.METADATA)
self.assertTrue(os.path.exists(md_path))
for lv in blockSD.SPECIAL_LVS:
self.assertEqual(lv, env.lvm.getLV(vg_name, lv).name)
images_dir = os.path.join(env.sd_manifest.domaindir,
sd.DOMAIN_IMAGES)
self.assertTrue(os.path.exists(images_dir))
# Check the storage repository
repo_path = env.sd_manifest.getRepoPath()
domain_link = os.path.join(repo_path, env.sd_manifest.sdUUID)
self.assertTrue(os.path.islink(domain_link))
self.assertEqual(env.sd_manifest.domaindir,
os.readlink(domain_link))
def test_volume_metadata_io(self):
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
img_id = str(uuid.uuid4())
vol_id = str(uuid.uuid4())
size_mb = 1 * MB
size_blk = size_mb * MB / sc.BLOCK_SIZE
make_block_volume(env.lvm, env.sd_manifest, size_mb,
img_id, vol_id)
self.assertEqual(vol_id, env.lvm.getLV(sd_id, vol_id).name)
vol = env.sd_manifest.produceVolume(img_id, vol_id)
self.assertEqual(size_blk, vol.getSize())
desc = 'foo'
vol.setDescription(desc)
# Test that metadata is persisted to our temporary storage area
vol = env.sd_manifest.produceVolume(img_id, vol_id)
self.assertEqual(desc, vol.getDescription())
def test_volume_accessibility(self):
with fake_block_env() as env:
sd_id = env.sd_manifest.sdUUID
img_id = make_uuid()
vol_id = make_uuid()
make_block_volume(env.lvm, env.sd_manifest, 1 * MB, img_id, vol_id)
self.assertTrue(os.path.isfile(env.lvm.lvPath(sd_id, vol_id)))
domain_path = os.path.join(env.sd_manifest.domaindir,
sd.DOMAIN_IMAGES, img_id, vol_id)
repo_path = os.path.join(env.sd_manifest.getRepoPath(), sd_id,
sd.DOMAIN_IMAGES, img_id, vol_id)
self.assertNotEqual(repo_path, domain_path)
# The links to the dev are created only when producing the volume
self.assertFalse(os.path.isfile(domain_path))
self.assertFalse(os.path.isfile(repo_path))
env.sd_manifest.produceVolume(img_id, vol_id)
self.assertTrue(os.path.samefile(repo_path, domain_path))
def test_get_monitoring_path(self):
with fake_block_env() as env:
md_lv_path = env.lvm.lvPath(env.sd_manifest.sdUUID, sd.METADATA)
self.assertEqual(md_lv_path, env.sd_manifest.getMonitoringPath())
def test_metaslot_lock(self):
with fake_block_env() as env:
with env.sd_manifest.acquireVolumeMetadataSlot(None, 1):
acquired = env.sd_manifest._lvTagMetaSlotLock.acquire(False)
self.assertFalse(acquired)
def fake_env(self):
return fake_block_env()
def test_getblocksize_defaults(self):
with fake_block_env() as env:
self.assertEquals(512, env.sd_manifest.logBlkSize)
self.assertEquals(512, env.sd_manifest.phyBlkSize)
def test_getmetaparam(self):
with fake_block_env() as env:
self.assertEquals(env.sd_manifest.sdUUID,
env.sd_manifest.getMetaParam(sd.DMDK_SDUUID))
def test_getreaddelay(self):
with fake_block_env() as env:
vg_name = env.sd_manifest.sdUUID
make_file(env.lvm.lvPath(vg_name, 'metadata'))
self.assertIsInstance(env.sd_manifest.getReadDelay(), float)
def test_repopath_location(self):
with fake_block_env() as env:
self.assertTrue(env.sd_manifest.getRepoPath().startswith(TEMPDIR))
def test_repopath_location(self):
with fake_block_env() as env:
self.assertTrue(env.sd_manifest.getRepoPath().startswith(TEMPDIR))
def fake_env(self):
return fake_block_env()
