class VolumeOperations(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
def create(self, dbg, uri, size):
raise NotImplementedError('Override in VolumeOperations specifc class')
def destroy(self, dbg, uri):
raise NotImplementedError('Override in VolumeOperations specifc class')
def resize(self, dbg, uri, size):
raise NotImplementedError('Override in VolumeOperations specifc class')
def swap(self, dbg, uri1, uri2):
log.debug("%s: xcpng.volume.VolumeOperations.swap: uri1: %s uri2: %s" % (dbg, uri1, uri2))
volume1_meta = self.MetadataHandler.get_vdi_meta(dbg, uri1)
volume2_meta = self.MetadataHandler.get_vdi_meta(dbg, uri2)
log.debug("%s: xcpng.volume.VolumeOperations.swap: before image_uuid1: %s image_uudi2: %s" %
(dbg, volume1_meta[IMAGE_UUID_TAG], volume2_meta[IMAGE_UUID_TAG]))
image1_uuid = volume1_meta[IMAGE_UUID_TAG]
image2_uuid = volume2_meta[IMAGE_UUID_TAG]
volume1_meta = {IMAGE_UUID_TAG: image2_uuid}
volume2_meta = {IMAGE_UUID_TAG: image1_uuid}
log.debug("%s: xcpng.volume.VolumeOperations.swap: after image_uuid1: %s image_uudi2: %s" %
(dbg, volume1_meta[IMAGE_UUID_TAG], volume2_meta[IMAGE_UUID_TAG]))
self.MetadataHandler.update_vdi_meta(dbg, uri1, volume1_meta)
self.MetadataHandler.update_vdi_meta(dbg, uri2, volume2_meta)
def get_phisical_utilization(self, dbg, uri):
raise NotImplementedError('Override in VolumeOperations specifc class')
def roundup_size(self, dbg, size):
raise NotImplementedError('Override in VolumeOperations specifc class')
class Volume(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
self.VolOpsHendler = _VolumeOperations_()
self.Datapathes = DATAPATHES
for k, v in DATAPATHES.iteritems():
self.Datapathes[k] = v()
def _create(self, dbg, sr, name, description, size, sharable, volume_meta):
raise NotImplementedError('Override in Volume specifc class')
def create(self, dbg, sr, name, description, size, sharable):
log.debug("%s: xcpng.volume.Volume.create: SR: %s Name: %s Description: %s Size: %s, Sharable: %s"
% (dbg, sr, name, description, size, sharable))
vdi_uuid = str(uuid.uuid4())
image_uuid = str(uuid.uuid4())
vdi_uri = "%s/%s" % (sr, vdi_uuid)
volume_meta = {
KEY_TAG: vdi_uuid,
VDI_UUID_TAG: vdi_uuid,
IMAGE_UUID_TAG: image_uuid,
TYPE_TAG: get_vdi_type_by_uri(dbg, vdi_uri),
NAME_TAG: name,
DESCRIPTION_TAG: description,
READ_WRITE_TAG: True,
VIRTUAL_SIZE_TAG: size,
PHYSICAL_UTILISATION_TAG: 0,
URI_TAG: [vdi_uri],
SHARABLE_TAG: sharable,
CUSTOM_KEYS_TAG: {}
}
try:
self.MetadataHandler.update_vdi_meta(dbg, vdi_uri, volume_meta)
volume_meta = self._create(dbg, sr, name, description, size, sharable, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.create: Failed to create volume: key %s: SR: %s" % (dbg, vdi_uuid, sr))
try:
self.destroy(dbg, sr, vdi_uuid)
self.MetadataHandler.remove_vdi_meta(dbg, vdi_uri)
except:
pass
raise Exception(e)
return volume_meta
def set(self, dbg, sr, key, k, v):
log.debug("%s: xcpng.volume.Volume.set: SR: %s Key: %s Custom_key: %s Value: %s"
% (dbg, sr, key, k, v))
uri = "%s/%s" % (sr, key)
volume_meta = {CUSTOM_KEYS_TAG: {}}
try:
volume_meta[CUSTOM_KEYS_TAG][k] = v
self.MetadataHandler.update_vdi_meta(dbg, uri, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to set volume param: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def unset(self, dbg, sr, key, k):
log.debug("%s: xcpng.volume.Volume.unset: SR: %s Key: %s Custom_key: %s"
% (dbg, sr, key, k))
uri = "%s/%s" % (sr, key)
volume_meta = {CUSTOM_KEYS_TAG: {}}
try:
volume_meta[CUSTOM_KEYS_TAG][k] = None
self.MetadataHandler.update_vdi_meta(dbg, uri, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to unset volume param: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def _stat(self, dbg, sr, key, volume_meta):
# Override in Volume specific class
return volume_meta
def stat(self, dbg, sr, key):
log.debug("%s: xcpng.volume.Volume.stat: SR: %s Key: %s"
% (dbg, sr, key))
uri = "%s/%s" % (sr, key)
try:
volume_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
volume_meta[PHYSICAL_UTILISATION_TAG] = self.VolOpsHendler.get_phisical_utilization(dbg, uri)
log.debug("%s: xcpng.volume.Volume.stat: SR: %s Key: %s Metadata: %s"
% (dbg, sr, key, volume_meta))
return self._stat(dbg, sr, key, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.stat: Failed to get volume stat: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def _destroy(self, dbg, sr, key):
# Override in Volume specifc class
pass
def destroy(self, dbg, sr, key):
log.debug("%s: xcpng.volume.Volume.destroy: SR: %s Key: %s"
% (dbg, sr, key))
uri = "%s/%s" % (sr, key)
try:
self._destroy(dbg, sr, key)
self.VolOpsHendler.destroy(dbg, uri)
self.MetadataHandler.remove_vdi_meta(dbg, uri)
except Exception as e:
log.error("%s: xcpng.volume.Volume.destroy: Failed to destroy volume: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def set_description(self, dbg, sr, key, new_description):
log.debug("%s: xcpng.volume.Volume.set_description: SR: %s Key: %s New_description: %s"
% (dbg, sr, key, new_description))
uri = "%s/%s" % (sr, key)
volume_meta = {
'description': new_description,
}
try:
self.MetadataHandler.update_vdi_meta(dbg, uri, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to set volume description: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def set_name(self, dbg, sr, key, new_name):
log.debug("%s: xcpng.volume.Volume.set_name: SR: %s Key: %s New_name: %s"
% (dbg, sr, key, new_name))
uri = "%s/%s" % (sr, key)
volume_meta = {
'name': new_name,
}
try:
self.MetadataHandler.update_vdi_meta(dbg, uri, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to set volume name: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def _resize(self, dbg, sr, key, new_size):
raise NotImplementedError('Override in Volume specifc class')
def resize(self, dbg, sr, key, new_size):
log.debug("%s: xcpng.volume.Volume.resize: SR: %s Key: %s New_size: %s"
% (dbg, sr, key, new_size))
uri = "%s/%s" % (sr, key)
volume_meta = {
'virtual_size': new_size,
}
try:
self._resize(dbg, sr, key, new_size)
self.MetadataHandler.update_vdi_meta(dbg, uri, volume_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to resize volume: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def _clone(self, dbg, sr, key, mode, volume_meta):
raise NotImplementedError('Override in Volume specifc class')
def clone(self, dbg, sr, key, mode):
log.debug("%s: xcpng.volume.Volume.clone: SR: %s Key: %s Mode: %s"
% (dbg, sr, key, mode))
orig_uri = "%s/%s" % (sr, key)
try:
orig_meta = self.MetadataHandler.get_vdi_meta(dbg, orig_uri)
if SNAPSHOT_OF_TAG in orig_meta[CUSTOM_KEYS_TAG]:
base_uri = orig_meta[PARENT_URI_TAG][0]
base_meta = self.MetadataHandler.get_vdi_meta(dbg, base_uri)
else:
base_meta = deepcopy(orig_meta)
if ACTIVE_ON_TAG in base_meta:
current_host = get_current_host_uuid()
if base_meta[ACTIVE_ON_TAG] != current_host:
log.debug("%s: librbd.Volume.clone: SR: %s Key: %s Can not snapshot on %s as VDI already active on %s"
% (dbg, sr, base_meta[VDI_UUID_TAG],
current_host, base_meta[ACTIVE_ON_TAG]))
raise Activated_on_another_host(base_meta[ACTIVE_ON_TAG])
return self._clone(dbg, sr, key, mode, base_meta)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to clone volume: key %s: SR: %s" % (dbg, key, sr))
raise Exception(e)
def _commit(self, dbg, sr, child, parent):
raise NotImplementedError('Coalesce is not supported')
def _set_parent(self, dbg, sr, child, parent):
raise NotImplementedError('Coalesce is not supported')
def commit(self, dbg, sr, child, parent):
self._commit(dbg, sr, child, parent)
def set_parent(self, dbg, sr, child, parent):
self._set_parent(dbg, sr, child, parent)
def coalesce(self, dbg, sr, key):
uri = "%s/%s" % (sr, key)
try:
volume_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
children = self.MetadataHandler.find_vdi_children(dbg, uri)
self._commit(dbg, sr, uri, volume_meta[PARENT_URI_TAG])
for child in children:
self._set_parent(dbg, sr, child[URI_TAG], volume_meta[PARENT_URI_TAG])
meta = {PARENT_URI_TAG: volume_meta[PARENT_URI_TAG]}
self.MetadataHandler.update_vdi_meta(dbg, child[URI_TAG], meta)
self.destroy(dbg, sr, key)
self.MetadataHandler.remove_vdi_meta(dbg, uri)
except Exception as e:
log.error("%s: xcpng.volume.Volume.set: Failed to coalesce volume with parent: key %s: SR: %s"
% (dbg, key, sr))
raise Exception(e)
class Datapath(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
self.DatapathOpsHandler = _DatapathOperations_()
def _relink(self, dbg, uri, child, parent, domain):
raise NotImplementedError('Override in Datapath specifc class')
def relink(self, dbg, uri, child, parent, domain):
log.debug(
"%s: xcpng.datapath.Datapath.relink: uri: %s child: %s parent: %s domain: %s"
% (dbg, uri, child, parent, domain))
try:
self._relink(dbg, uri, child, parent, domain)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.relink: Failed to relink: uri: %s"
% (dbg, uri))
raise Exception(e)
def _commit(self, dbg, uri, child, parent, domain):
raise NotImplementedError('Override in Datapath specifc class')
def commit(self, dbg, uri, child, parent, domain):
log.debug(
"%s: xcpng.datapath.Datapath.commit: uri: %s child: %s parent: %s domain: %s"
% (dbg, uri, child, parent, domain))
try:
self._commit(dbg, uri, child, parent, domain)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.commit: Failed to commit: uri: %s"
% (dbg, uri))
raise Exception(e)
def _open(self, dbg, uri, persistent):
raise NotImplementedError('Override in Datapath specifc class')
def open(self, dbg, uri, persistent):
log.debug("%s: xcpng.datapath.Datapath.open: uri: %s persistent: %s" %
(dbg, uri, persistent))
try:
image_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
if NON_PERSISTENT_TAG in image_meta:
vdi_non_persistent = image_meta[NON_PERSISTENT_TAG]
else:
vdi_non_persistent = False
if persistent:
log.debug(
"%s: xcpng.Datapath.open: uri: %s will be marked as persistent"
% (dbg, uri))
if vdi_non_persistent:
# unmark as non-peristent
image_meta = {
NON_PERSISTENT_TAG: None,
}
self.MetadataHandler.update_vdi_meta(dbg, uri, image_meta)
# on detach remove special snapshot to rollback to
elif vdi_non_persistent:
log.debug(
"%s: xcpng.Datapath.open: uri: %s already marked as non-persistent"
% (dbg, uri))
else:
log.debug(
"%s: xcpng.Datapath.open: uri: %s will be marked as non-persistent"
% (dbg, uri))
# mark as non-peristent
image_meta = {
NON_PERSISTENT_TAG: True,
}
self.MetadataHandler.update_vdi_meta(dbg, uri, image_meta)
# on attach create special snapshot to rollback to on detach
self._open(dbg, uri, persistent)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.open: Failed to open datapath for volume: uri: %s"
% (dbg, uri))
raise Exception(e)
def _close(self, dbg, uri):
raise NotImplementedError('Override in Datapath specifc class')
def close(self, dbg, uri):
log.debug("%s: xcpng.datapath.Datapath.close: uri: %s" % (dbg, uri))
try:
image_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
if NON_PERSISTENT_TAG in image_meta:
vdi_non_persistent = image_meta[NON_PERSISTENT_TAG]
else:
vdi_non_persistent = False
log.debug(
"%s: xcpng.Datapath.close: uri: %s will be marked as persistent"
% (dbg, uri))
if vdi_non_persistent:
# unmark as non-peristent
image_meta = {
NON_PERSISTENT_TAG: None,
}
self.MetadataHandler.update_vdi_meta(dbg, uri, image_meta)
self._close(dbg, uri)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.close: Failed to close datapath for volume: uri: %s"
% (dbg, uri))
raise Exception(e)
def _attach(self, dbg, uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def attach(self, dbg, uri, domain):
log.debug("%s: xcpng.datapath.Datapath.attach: uri: %s domain: %s" %
(dbg, uri, domain))
try:
self.DatapathOpsHandler.map_vol(dbg, uri, chained=True)
if platform.linux_distribution()[1] == '7.5.0':
protocol, params = self._attach(dbg, uri, domain)
return {
'domain_uuid': '0',
'implementation': [protocol, params]
}
elif platform.linux_distribution(
)[1] == '7.6.0' or platform.linux_distribution()[1] == '8.0.0':
return {'implementations': self._attach(dbg, uri, domain)}
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.attach: Failed to attach datapath for volume: uri: %s"
% (dbg, uri))
try:
self.DatapathOpsHandler.unmap_vol(dbg, uri, chained=True)
except:
pass
raise Exception(e)
def _detach(self, dbg, uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def detach(self, dbg, uri, domain):
log.debug("%s: xcpng.datapath.Datapath.detach: uri: %s domain: %s" %
(dbg, uri, domain))
try:
self.DatapathOpsHandler.unmap_vol(dbg, uri, chained=True)
self._detach(dbg, uri, domain)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.detach: Failed to detach datapath for volume: uri: %s"
% (dbg, uri))
raise Exception(e)
def _activate(self, dbg, uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def activate(self, dbg, uri, domain):
log.debug("%s: xcpng.datapath.Datapath.activate: uri: %s domain: %s" %
(dbg, uri, domain))
# TODO: Check that VDI is not active on other host
try:
self._activate(dbg, uri, domain)
image_meta = {ACTIVE_ON_TAG: get_current_host_uuid()}
self.MetadataHandler.update_vdi_meta(dbg, uri, image_meta)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.activate: Failed to activate datapath for volume: uri: %s"
% (dbg, uri))
try:
self._deactivate(dbg, uri, domain)
except:
pass
raise Exception(e)
def _deactivate(self, dbg, uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def deactivate(self, dbg, uri, domain):
log.debug(
"%s: xcpng.datapath.Datapath.deactivate: uri: %s domain: %s" %
(dbg, uri, domain))
try:
self._deactivate(dbg, uri, domain)
image_meta = {ACTIVE_ON_TAG: None}
self.MetadataHandler.update_vdi_meta(dbg, uri, image_meta)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.deactivate: Failed to deactivate datapath for volume: uri: %s"
% (dbg, uri))
raise Exception(e)
def _suspend(self, dbg, uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def suspend(self, dbg, uri, domain):
log.debug("%s: xcpng.datapath.Datapath.suspend: uri: %s domain: %s" %
(dbg, uri, domain))
try:
self._suspend(dbg, uri, domain)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.suspend: Failed to suspend datapath for volume: uri: %s"
% (dbg, uri))
raise Exception(e)
def _resume(self, dbg, uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def resume(self, dbg, uri, domain):
log.debug("%s: xcpng.datapath.Datapath.resume: uri: %s domain: %s" %
(dbg, uri, domain))
try:
self._resume(dbg, uri, domain)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.resume: Failed to resume datapath for volume: uri: %s"
% (dbg, uri))
raise Exception(e)
def _snapshot(self, dbg, base_uri, snap_uri, domain):
raise NotImplementedError('Override in Datapath specifc class')
def snapshot(self, dbg, base_uri, snap_uri, domain):
log.debug(
"%s: xcpng.Datapath.snapshot: base_uri: %s snap_uri: %s domain: %s"
% (dbg, base_uri, snap_uri, domain))
try:
self._snapshot(dbg, base_uri, snap_uri, domain)
except Exception as e:
log.error(
"%s: xcpng.datapath.Datapath.snapshot: Failed to set backing file for live volume: uri: %s"
% (dbg, snap_uri))
raise Exception(e)
class DatapathOperations(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
self.blkdev = None
def gen_vol_path(self, dbg, uri):
volume_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
return "%s/%s/%s" % (SR_PATH_PREFIX, get_sr_uuid_by_uri(
dbg, uri), volume_meta[IMAGE_UUID_TAG])
def gen_vol_uri(self, dbg, uri):
return "file:%s" % self.gen_vol_path(dbg, uri)
def map_vol(self, dbg, uri, chained=False):
if self.blkdev:
log.debug(
"%s: xcpng.datapath.DatapathOperations.map_vol: uri: %s" %
(dbg, uri))
_blkdev_ = self.blkdev
try:
volume_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
if chained is True:
if PARENT_URI_TAG in volume_meta:
self.map_vol(dbg, volume_meta[PARENT_URI_TAG][0],
chained)
if REF_COUNT_TAG in volume_meta:
new_meta = {}
new_meta[REF_COUNT_TAG] = volume_meta[REF_COUNT_TAG] + 1
self.MetadataHandler.update_vdi_meta(dbg, uri, new_meta)
else:
new_meta = {}
new_meta[REF_COUNT_TAG] = 1
call(dbg,
['ln', '-s', _blkdev_,
self.gen_vol_path(dbg, uri)])
self.MetadataHandler.update_vdi_meta(dbg, uri, new_meta)
except Exception as e:
log.error(
"%s: xcpng.datapath.DatapathOperations.map_vol: Failed to map volume: uri: %s device: %s"
% (dbg, uri, _blkdev_))
raise Exception(e)
def unmap_vol(self, dbg, uri, chained=False):
path = self.gen_vol_path(dbg, uri)
if exists(path):
log.debug(
"%s: xcpng.datapath.DatapathOperations.unmap_vol: uri: %s" %
(dbg, uri))
try:
volume_meta = self.MetadataHandler.get_vdi_meta(dbg, uri)
if REF_COUNT_TAG in volume_meta:
new_meta = {}
if volume_meta[REF_COUNT_TAG] == 1:
new_meta[REF_COUNT_TAG] = None
call(dbg, ['unlink', path])
else:
new_meta[
REF_COUNT_TAG] = volume_meta[REF_COUNT_TAG] - 1
self.MetadataHandler.update_vdi_meta(dbg, uri, new_meta)
if chained:
if PARENT_URI_TAG in volume_meta:
self.unmap_vol(dbg, volume_meta[PARENT_URI_TAG][0],
chained)
except Exception as e:
log.error(
"%s: xcpng.datapath.DatapathOperations.unmap_vol: Failed to unmap volume: uri: %s"
% (dbg, uri))
raise Exception(e)
class SR(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
self.SROpsHendler = _SROperations_()
self.sr_type = xapi.storage.libs.xcpng.globalvars.plugin_type
def probe(self, dbg, configuration):
log.debug("{}: xcpng.sr.SR.probe: configuration={}".format(
dbg, configuration))
if IMAGE_FORMAT_TAG in configuration:
_uri_ = "%s+%s" % (self.sr_type, configuration[IMAGE_FORMAT_TAG])
if DATAPATH_TAG in configuration:
_uri_ = "%s+%s://" % (_uri_, configuration[DATAPATH_TAG])
else:
_uri_ = "%s://" % self.sr_type
_uri_ = self.SROpsHendler.extend_uri(dbg, _uri_, configuration)
uri = "%s/%s" % (_uri_, configuration[SR_UUID_TAG]
) if SR_UUID_TAG in configuration else _uri_
log.debug("{}: xcpng.sr.SR.probe: uri to probe: {}".format(dbg, uri))
result = []
known_srs = get_known_srs()
try:
srs = self.SROpsHendler.get_sr_list(dbg, uri, configuration)
log.debug("%s: xcpng.sr.SR.probe: Available Pools" % dbg)
log.debug(
"%s: xcpng.sr.SR.probe: ---------------------------------------------------"
% dbg)
for _sr_ in srs:
sr_uuid = get_sr_uuid_by_uri(dbg, _sr_)
if sr_uuid not in known_srs:
sr_found = True
log.debug("%s: xcpng.sr.SR.probe: %s" % (dbg, _sr_))
configuration['mountpoint'] = "%s/%s" % (SR_PATH_PREFIX,
sr_uuid)
try:
self.SROpsHendler.sr_import(dbg, _sr_, configuration)
sr_meta = self.MetadataHandler.get_sr_meta(dbg, _sr_)
except Exception:
try:
self.SROpsHendler.sr_export(dbg, _sr_)
except:
pass
break
if (IMAGE_FORMAT_TAG in configuration and
((CONFIGURATION_TAG in sr_meta
and IMAGE_FORMAT_TAG in sr_meta[CONFIGURATION_TAG]
and configuration[IMAGE_FORMAT_TAG] !=
sr_meta[CONFIGURATION_TAG][IMAGE_FORMAT_TAG]) or
(CONFIGURATION_TAG in sr_meta and IMAGE_FORMAT_TAG
not in sr_meta[CONFIGURATION_TAG])
or CONFIGURATION_TAG not in sr_meta)):
sr_found = False
if (DATAPATH_TAG in configuration and
((CONFIGURATION_TAG in sr_meta
and DATAPATH_TAG in sr_meta[CONFIGURATION_TAG]
and configuration[DATAPATH_TAG] !=
sr_meta[CONFIGURATION_TAG][DATAPATH_TAG]) or
(CONFIGURATION_TAG in sr_meta
and DATAPATH_TAG not in sr_meta[CONFIGURATION_TAG])
or CONFIGURATION_TAG not in sr_meta)):
sr_found = False
if (SR_UUID_TAG in configuration and (
(CONFIGURATION_TAG in sr_meta
and SR_UUID_TAG in sr_meta[CONFIGURATION_TAG]
and configuration[SR_UUID_TAG] !=
sr_meta[CONFIGURATION_TAG][SR_UUID_TAG]) or
(CONFIGURATION_TAG in sr_meta
and SR_UUID_TAG not in sr_meta[CONFIGURATION_TAG]
and SR_UUID_TAG in sr_meta and
configuration[SR_UUID_TAG] != sr_meta[SR_UUID_TAG]) or
(CONFIGURATION_TAG not in sr_meta
and SR_UUID_TAG in sr_meta and
configuration[SR_UUID_TAG] != sr_meta[SR_UUID_TAG])
or SR_UUID_TAG not in sr_meta)):
sr_found = False
if SR_UUID_TAG in sr_meta and sr_meta[
SR_UUID_TAG] in known_srs:
sr_found = False
if SR_UUID_TAG not in sr_meta:
sr_found = False
if sr_found:
_result_ = {}
_result_['complete'] = True
_result_['configuration'] = {}
_result_['configuration'] = deepcopy(
sr_meta[CONFIGURATION_TAG])
# _result_['configuration'] = deepcopy(configuration)
_result_['extra_info'] = {}
sr = {}
sr['sr'] = _sr_
sr['name'] = sr_meta[NAME_TAG] if NAME_TAG in sr_meta \
else self.SROpsHendler.DEFAULT_SR_NAME
sr['description'] = sr_meta[DESCRIPTION_TAG] if DESCRIPTION_TAG in sr_meta \
else self.SROpsHendler.DEFAULT_SR_DESCRIPTION
sr['free_space'] = self.SROpsHendler.get_free_space(
dbg, _sr_)
sr['total_space'] = self.SROpsHendler.get_size(
dbg, _sr_)
sr['datasources'] = self.SROpsHendler.get_datasources(
dbg, _sr_)
sr['clustered'] = self.SROpsHendler.get_clustered(
dbg, _sr_)
sr['health'] = self.SROpsHendler.get_health(dbg, _sr_)
_result_['sr'] = sr
# _result_['configuration']['sr_uuid'] = sr_meta[SR_UUID_TAG]
result.append(_result_)
self.SROpsHendler.sr_export(dbg, _sr_)
except Exception as e:
log.error(
"%s: xcpng.sr.SR.probe: Failed to probe SRs for configuration: %s"
% (dbg, configuration))
raise Exception(e)
return result
def create(self, dbg, sr_uuid, configuration, name, description):
log.debug(
"%s: xcpng.sr.SR.create: sr_uuid %s configuration %s name '%s' description: '%s'"
% (dbg, sr_uuid, configuration, name, description))
if IMAGE_FORMAT_TAG in configuration:
uri = "%s+%s" % (self.sr_type, configuration[IMAGE_FORMAT_TAG])
if DATAPATH_TAG in configuration:
uri = "%s+%s://" % (uri, configuration[DATAPATH_TAG])
else:
uri = "%s://" % self.sr_type
uri = self.SROpsHendler.extend_uri(dbg, uri, configuration)
uri = "%s/%s" % (uri, sr_uuid)
log.debug("%s: xcpng.sr.SR.create: uri %s" % (dbg, uri))
configuration['mountpoint'] = "%s/%s" % (SR_PATH_PREFIX,
get_sr_uuid_by_uri(dbg, uri))
try:
call(dbg, ['mkdir', '-p', configuration['mountpoint']])
self.SROpsHendler.create(dbg, uri, configuration)
self.MetadataHandler.create(dbg, uri)
configuration['sr_uuid'] = sr_uuid
sr_meta = {
SR_UUID_TAG: sr_uuid,
NAME_TAG: name,
DESCRIPTION_TAG: description,
#CONFIGURATION_TAG: json.dumps(configuration)
CONFIGURATION_TAG: configuration
}
self.MetadataHandler.update_sr_meta(dbg, uri, sr_meta)
self.MetadataHandler.dump(dbg, uri)
except Exception as e:
log.error(
"%s: xcpng.sr.SR.create: Failed to create SR - sr_uuid: %s" %
(dbg, sr_uuid))
try:
self.SROpsHendler.destroy(dbg, uri)
except:
pass
raise Exception(e)
try:
self.SROpsHendler.sr_export(dbg, uri)
except Exception as e:
log.error(
"%s: xcpng.sr.SR.create: Created but failed to export SR after creation - sr_uuid: %s"
"Please check and export SR manually before attaching the SR" %
(dbg, sr_uuid))
return configuration
def destroy(self, dbg, uri):
log.debug("%s: xcpng.sr.SR.destroy: uri: %s" % (dbg, uri))
try:
self.MetadataHandler.destroy(dbg, uri)
self.SROpsHendler.destroy(dbg, uri)
call(dbg, [
'rm', '-rf',
"%s/%s" % (SR_PATH_PREFIX, get_sr_uuid_by_uri(dbg, uri))
])
except Exception as e:
log.error(
"%s: xcpng.sr.SR.destroy: Failed to destroy SR - sr_uuid: %s" %
(dbg, get_sr_uuid_by_uri(dbg, uri)))
raise Exception(e)
def attach(self, dbg, configuration):
log.debug("%s: xcpng.sr.SR.attach: configuration: %s" %
(dbg, configuration))
if IMAGE_FORMAT_TAG in configuration:
uri = "%s+%s" % (self.sr_type, configuration[IMAGE_FORMAT_TAG])
if DATAPATH_TAG in configuration:
uri = "%s+%s://" % (uri, configuration[DATAPATH_TAG])
else:
uri = "%s://" % self.sr_type
uri = self.SROpsHendler.extend_uri(dbg, uri, configuration)
uri = "%s/%s" % (uri, configuration[SR_UUID_TAG]
) if SR_UUID_TAG in configuration else uri
log.debug("%s: xcpng.sr.SR.attach: uri: %s" % (dbg, uri))
configuration['mountpoint'] = "%s/%s" % (SR_PATH_PREFIX,
get_sr_uuid_by_uri(dbg, uri))
try:
call(dbg, ['mkdir', '-p', configuration['mountpoint']])
self.SROpsHendler.sr_import(dbg, uri, configuration)
except Exception as e:
log.error(
"%s: xcpng.sr.SR.attach: Failed to attach SR - sr_uuid: %s" %
(dbg, get_sr_uuid_by_uri(dbg, uri)))
try:
self.SROpsHendler.sr_export(dbg, uri)
call(dbg, ['rm', '-rf', configuration['mountpoint']])
except:
pass
raise Exception(e)
return uri
def detach(self, dbg, uri):
log.debug("%s: xcpng.sr.SR.detach: uri: %s" % (dbg, uri))
try:
self.SROpsHendler.sr_export(dbg, uri)
call(dbg, [
'rm', '-rf',
"%s/%s" % (SR_PATH_PREFIX, get_sr_uuid_by_uri(dbg, uri))
])
except Exception as e:
log.error(
"%s: xcpng.sr.SR.detach: Failed to detach SR - sr_uuid: %s" %
(dbg, get_sr_uuid_by_uri(dbg, uri)))
raise Exception(e)
def stat(self, dbg, uri):
log.debug("%s: xcpng.sr.SR.stat: uri: %s" % (dbg, uri))
try:
sr_meta = self.MetadataHandler.get_sr_meta(dbg, uri)
log.debug("%s: xcpng.sr.SR.stat: pool_meta: %s" % (dbg, sr_meta))
# Get the sizes
tsize = self.SROpsHendler.get_size(dbg, uri)
fsize = self.SROpsHendler.get_free_space(dbg, uri)
log.debug(
"%s: xcpng.sr.SR.stat total_space = %Ld free_space = %Ld" %
(dbg, tsize, fsize))
except Exception as e:
log.error("%s: xcpng.sr.SR.stat: Failed to get stat for SR: %s" %
(dbg, uri))
raise Exception(e)
overprovision = 0
return {
'sr':
uri,
'uuid':
get_sr_uuid_by_uri(dbg, uri),
'name':
sr_meta[NAME_TAG] if sr_meta[NAME_TAG] is not None else
'' if NAME_TAG in sr_meta else self.SROpsHendler.DEFAULT_SR_NAME,
'description':
sr_meta[DESCRIPTION_TAG]
if sr_meta[DESCRIPTION_TAG] is not None else '' if DESCRIPTION_TAG
in sr_meta else self.SROpsHendler.DEFAULT_SR_DESCRIPTION,
'total_space':
tsize,
'free_space':
fsize,
'overprovision':
overprovision,
'datasources':
self.SROpsHendler.get_datasources(dbg, uri),
'clustered':
self.SROpsHendler.get_clustered(dbg, uri),
'health':
self.SROpsHendler.get_health(dbg, uri)
}
def set_name(self, dbg, uri, new_name):
log.debug("%s: xcpng.sr.SR.set_name: SR: %s New_name: %s" %
(dbg, uri, new_name))
sr_meta = {
NAME_TAG: new_name,
}
try:
self.MetadataHandler.update_sr_meta(dbg, uri, sr_meta)
except Exception as e:
log.error(
"%s: xcpng.sr.SR.set_name: Failed to set name for SR: %s" %
(dbg, uri))
raise Exception(e)
def set_description(self, dbg, uri, new_description):
log.debug(
"%s: xcpng.sr.SR.set_description: SR: %s New_description: %s" %
(dbg, uri, new_description))
sr_meta = {
DESCRIPTION_TAG: new_description,
}
try:
self.MetadataHandler.update_sr_meta(dbg, uri, sr_meta)
except Exception as e:
log.error(
"%s: xcpng.sr.SR.set_description: Failed to set description for SR: %s"
% (dbg, uri))
raise Exception(e)
def ls(self, dbg, uri):
log.debug("%s: xcpng.sr.SR.ls: uri: %s" % (dbg, uri))
results = []
key = ''
try:
for volume in self.SROpsHendler.get_vdi_list(dbg, uri):
log.debug("%s: xcpng.sr.SR.ls: SR: %s Volume: %s" %
(dbg, uri, volume))
key = get_vdi_uuid_by_name(dbg, volume)
log.debug("%s: xcpng.sr.SR.ls: SR: %s vdi : %s" %
(dbg, uri, key))
volume_meta = self.MetadataHandler.get_vdi_meta(
dbg, "%s/%s" % (uri, key))
results.append({
VDI_UUID_TAG:
volume_meta[VDI_UUID_TAG],
KEY_TAG:
volume_meta[KEY_TAG],
NAME_TAG:
volume_meta[NAME_TAG],
DESCRIPTION_TAG:
volume_meta[DESCRIPTION_TAG],
READ_WRITE_TAG:
volume_meta[READ_WRITE_TAG],
VIRTUAL_SIZE_TAG:
volume_meta[VIRTUAL_SIZE_TAG],
PHYSICAL_UTILISATION_TAG:
volume_meta[PHYSICAL_UTILISATION_TAG],
URI_TAG:
volume_meta[URI_TAG],
CUSTOM_KEYS_TAG:
volume_meta[CUSTOM_KEYS_TAG],
SHARABLE_TAG:
volume_meta[SHARABLE_TAG]
})
return results
except Exception as e:
log.error("%s: xcpng.sr.SR.ls: Failed to list of vdis for SR: %s" %
(dbg, uri))
raise Exception(e)