def stat(cls, dbg, sr, key):
log.debug("%s: librbd.Volume.stat: SR: %s Key: %s"
% (dbg, sr, key))
ceph_cluster = ceph_utils.connect(dbg, sr)
uri = "%s/%s" % (sr, key)
image_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, uri)],
key)
try:
image_meta = meta.RBDMetadataHandler.load(dbg, uri)
image_meta[meta.PHYSICAL_UTILISATION_TAG] = rbd_utils.getPhysicalUtilisation(dbg,
ceph_cluster,
image_name)
#meta.RBDMetadataHandler.update(dbg, uri, image_meta)
log.debug("%s: librbd.Volume.stat: SR: %s Key: %s Metadata: %s"
% (dbg, sr, key, image_meta))
return cls._stat(dbg, sr, key, image_meta)
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def _resize(cls, dbg, sr, key, new_size, image_meta):
log.debug("%s: librbd.QCOW2Volume._resize: SR: %s Key: %s New_size: %s"
% (dbg, sr, key, new_size))
# TODO: Implement overhead calculation for QCOW2 format
new_size = utils.validate_and_round_vhd_size(new_size)
new_rbd_size = utils.fullSizeVHD(new_size)
ceph_cluster = ceph_utils.connect(dbg, sr)
uri = "%s/%s" % (sr, key)
image_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, uri)],
key)
try:
rbd_utils.resize(dbg, ceph_cluster, image_name, new_rbd_size)
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
#nbd_device = call(dbg, ["/usr/bin/rbd-nbd",
# "map",
# image_name]).rstrip('\n')
call(dbg, ["/usr/lib64/qemu-dp/bin/qemu-img",
"resize",
"rbd:%s" % image_name,
str(new_size)])
def attach(self, dbg, configuration):
log.debug("%s: SR.attach: configuration: %s" % (dbg, configuration))
uri = "rbd+%s+%s://%s/%s" % (
configuration['image-format'], configuration['datapath'],
configuration['cluster'], configuration['sr_uuid'])
ceph_cluster = ceph_utils.connect(dbg, uri)
#sr_uuid=utils.get_sr_uuid_by_uri(dbg,uri)
log.debug("%s: SR.attach: sr_uuid: %s uri: %s" %
(dbg, configuration['sr_uuid'], uri))
if not ceph_cluster.pool_exists(utils.get_pool_name_by_uri(dbg, uri)):
raise Sr_not_attached(configuration['sr_uuid'])
# Create pool metadata image if it doesn't exist
log.debug("%s: SR.attach: name: %s/%s" %
(dbg, utils.get_pool_name_by_uri(
dbg, uri), utils.SR_METADATA_IMAGE_NAME))
if not rbd_utils.if_image_exist(
dbg, ceph_cluster, '%s/%s' % (utils.get_pool_name_by_uri(
dbg, uri), utils.SR_METADATA_IMAGE_NAME)):
rbd_utils.create(
dbg, ceph_cluster, '%s/%s' % (utils.get_pool_name_by_uri(
dbg, uri), utils.SR_METADATA_IMAGE_NAME), 0)
ceph_utils.disconnect(dbg, ceph_cluster)
return uri
def _create(cls, dbg, sr, name, description, size, sharable, image_meta):
log.debug("%s: librbd.RAWVolume.create: SR: %s Name: %s Description: %s Size: %s"
% (dbg, sr, name, description, size))
image_meta[meta.TYPE_TAG] = utils.get_vdi_type_by_uri(dbg, image_meta[meta.URI_TAG][0])
ceph_cluster = ceph_utils.connect(dbg, sr)
image_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[image_meta[meta.TYPE_TAG]],
image_meta[meta.UUID_TAG])
try:
rbd_utils.create(dbg, ceph_cluster, image_name, image_meta[meta.VIRTUAL_SIZE_TAG])
meta.RBDMetadataHandler.update(dbg, image_meta[meta.URI_TAG][0], image_meta)
except Exception:
try:
rbd_utils.remove(dbg, ceph_cluster, image_name)
except Exception:
pass
finally:
raise Volume_does_not_exist(image_meta[meta.UUID_TAG])
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
return image_meta
def _load(dbg, uri, use_image_prefix=True):
log.debug("%s: meta.RBDMetadataHandler._load: uri: %s" % (dbg, uri))
ceph_cluster = ceph_utils.connect(dbg, uri)
if use_image_prefix:
image_name = "%s%s/%s%s" % (
utils.RBDPOOL_PREFIX, utils.get_sr_uuid_by_uri(
dbg, uri), utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(
dbg, uri)], utils.get_vdi_uuid_by_uri(dbg, uri))
else:
image_name = "%s%s/%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, uri),
utils.get_vdi_uuid_by_uri(dbg, uri))
image_meta = {}
try:
image_meta_list = rbd_utils.retrieveImageMetadata(
dbg, ceph_cluster, image_name)
for tag, value in image_meta_list:
image_meta[tag] = TAG_TYPES[tag](value)
log.debug(
"%s: meta.RBDMetadataHandler._load: Image: %s Metadata: %s " %
(dbg, image_name, image_meta))
except Exception:
raise Volume_does_not_exist(uri)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
return image_meta
def detach(self, dbg, uri):
log.debug("%s: SR.detach: uri: %s" % (dbg, uri))
ceph_cluster = ceph_utils.connect(dbg, uri)
sr_uuid = utils.get_sr_uuid_by_uri(dbg, uri)
log.debug("%s: SR.detach: sr_uuid: %s" % (dbg, sr_uuid))
if not ceph_cluster.pool_exists(utils.get_pool_name_by_uri(dbg, uri)):
raise Sr_not_attached(sr_uuid)
ceph_utils.disconnect(dbg, ceph_cluster)
def ls(self, dbg, uri):
log.debug("%s: SR.ls: uri: %s" % (dbg, uri))
results = []
key = ''
ceph_cluster = ceph_utils.connect(dbg, uri)
try:
rbds = rbd_utils.list(dbg, ceph_cluster,
utils.get_pool_name_by_uri(dbg, uri))
for rbd in rbds:
if rbd.startswith(utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(
dbg, uri)]):
log.debug("%s: SR.ls: SR: %s rbd: %s" % (dbg, uri, rbd))
key = utils.get_vdi_uuid_by_name(dbg, rbd)
log.debug("%s: SR.ls: SR: %s Image: %s" % (dbg, uri, key))
image_meta = meta.RBDMetadataHandler.load(
dbg, "%s/%s" % (uri, key))
#log.debug("%s: SR.ls: SR: %s image: %s Metadata: %s" % (dbg, uri, rbd, image_meta))
results.append({
meta.UUID_TAG:
image_meta[meta.UUID_TAG],
meta.KEY_TAG:
image_meta[meta.KEY_TAG],
meta.NAME_TAG:
image_meta[meta.NAME_TAG],
meta.DESCRIPTION_TAG:
image_meta[meta.DESCRIPTION_TAG],
meta.READ_WRITE_TAG:
image_meta[meta.READ_WRITE_TAG],
meta.VIRTUAL_SIZE_TAG:
image_meta[meta.VIRTUAL_SIZE_TAG],
meta.PHYSICAL_UTILISATION_TAG:
image_meta[meta.PHYSICAL_UTILISATION_TAG],
meta.URI_TAG:
image_meta[meta.URI_TAG],
meta.CUSTOM_KEYS_TAG:
image_meta[meta.CUSTOM_KEYS_TAG],
meta.SHARABLE_TAG:
image_meta[meta.SHARABLE_TAG]
})
#log.debug("%s: SR.ls: Result: %s" % (dbg, results))
return results
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def destroy(self, dbg, uri):
log.debug("%s: SR.destroy: uri: %s" % (dbg, uri))
ceph_cluster = ceph_utils.connect(dbg, uri)
ceph_pool_name = utils.get_pool_name_by_uri(dbg, uri)
if not ceph_cluster.pool_exists(ceph_pool_name):
raise Exception("Ceph pool %s does not exist ")
try:
ceph_cluster.delete_pool(ceph_pool_name)
except Exception:
raise Exception("Failed to delete ceph pool %s" % ceph_pool_name)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def _resize(cls, dbg, sr, key, new_size, image_meta):
log.debug("%s: librbd.RAWVolume._resize: SR: %s Key: %s New_size: %s"
% (dbg, sr, key, new_size))
ceph_cluster = ceph_utils.connect(dbg, sr)
uri = "%s/%s" % (sr, key)
image_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, uri)],
key)
try:
rbd_utils.resize(dbg, ceph_cluster, image_name, new_size)
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def set_name(self, dbg, uri, new_name):
log.debug("%s: SR.set_name: SR: %s New_name: %s" %
(dbg, uri, new_name))
ceph_cluster = ceph_utils.connect(dbg, uri)
pool_meta = {
meta.NAME_TAG: new_name,
}
try:
meta.RBDMetadataHandler.update(
dbg, '%s/%s' % (uri, utils.SR_METADATA_IMAGE_NAME), pool_meta,
False)
except Exception:
raise Volume_does_not_exist(uri)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def stat(self, dbg, uri):
log.debug("%s: SR.stat: uri: %s" % (dbg, uri))
ceph_cluster = ceph_utils.connect(dbg, uri)
ceph_cluster_stats = ceph_cluster.get_cluster_stats()
pool_meta = meta.RBDMetadataHandler.load(
dbg, '%s/%s' % (uri, utils.SR_METADATA_IMAGE_NAME), False)
log.debug("%s: SR.stat: pool_meta: %s" % (dbg, pool_meta))
# Get the sizes
tsize = ceph_cluster_stats['kb'] * 1024
fsize = ceph_cluster_stats['kb_avail'] * 1024
log.debug("%s: SR.stat total_space = %Ld free_space = %Ld" %
(dbg, tsize, fsize))
overprovision = 0
ceph_utils.disconnect(dbg, ceph_cluster)
return {
'sr':
uri,
'uuid':
utils.get_sr_uuid_by_uri(dbg, uri),
'name':
pool_meta[meta.NAME_TAG]
if meta.NAME_TAG in pool_meta else '<CEPHBASED SR>',
'description':
pool_meta[meta.DESCRIPTION_TAG]
if meta.DESCRIPTION_TAG in pool_meta else '<CEPHBASED SR>',
'total_space':
tsize,
'free_space':
fsize,
'overprovision':
overprovision,
'datasources': [],
'clustered':
False,
'health': ['Healthy', '']
}
def destroy(cls, dbg, sr, key):
log.debug("%s: Volume.destroy: SR: %s Key: %s"
% (dbg, sr, key))
ceph_cluster = ceph_utils.connect(dbg, sr)
uri = "%s/%s" % (sr, key)
image_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, uri)],
key)
try:
rbd_utils.remove(dbg, ceph_cluster, image_name)
cls._destroy(dbg, sr, key)
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def _update(dbg, uri, image_meta, use_image_prefix=True):
log.debug(
"%s: meta.RBDMetadataHandler._update_meta: uri: %s image_meta: %s"
% (dbg, uri, image_meta))
ceph_cluster = ceph_utils.connect(dbg, uri)
if use_image_prefix:
image_name = "%s%s/%s%s" % (
utils.RBDPOOL_PREFIX, utils.get_sr_uuid_by_uri(
dbg, uri), utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(
dbg, uri)], utils.get_vdi_uuid_by_uri(dbg, uri))
else:
image_name = "%s%s/%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, uri),
utils.get_vdi_uuid_by_uri(dbg, uri))
try:
rbd_utils.updateImageMetadata(dbg, ceph_cluster, image_name,
image_meta)
except Exception:
raise Volume_does_not_exist(uri)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def _create(cls, dbg, sr, name, description, size, sharable, image_meta):
log.debug("%s: librbd.QCOW2Volume._create: SR: %s Name: %s Description: %s Size: %s"
% (dbg, sr, name, description, size))
image_meta[meta.TYPE_TAG] = utils.get_vdi_type_by_uri(dbg, image_meta[meta.URI_TAG][0])
ceph_cluster = ceph_utils.connect(dbg, sr)
image_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[image_meta[meta.TYPE_TAG]],
image_meta[meta.UUID_TAG])
# TODO: Implement overhead calculation for QCOW2 format
size = utils.validate_and_round_vhd_size(size)
rbd_size = utils.fullSizeVHD(size)
try:
rbd_utils.create(dbg, ceph_cluster, image_name, rbd_size)
meta.RBDMetadataHandler.update(dbg, image_meta[meta.URI_TAG][0], image_meta)
except Exception:
try:
rbd_utils.remove(dbg, ceph_cluster, image_name)
except Exception:
pass
finally:
raise Volume_does_not_exist(image_meta[meta.UUID_TAG])
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
#Datapath.attach(dbg, image_meta[meta.URI_TAG][0], 0)
#Datapath.activate(dbg, image_meta[meta.URI_TAG][0], 0, 'raw')
#nbd_device=call(dbg, ["/opt/xensource/libexec/nbd_client_manager.py",
# "connect",
# "--path",
# utils.VAR_RUN_PREFIX + "/qemu-nbd.{}".format(image_meta[meta.UUID_TAG]),
# "--exportname",
# "qemu_node"])
nbd_device = call(dbg, ["/usr/bin/rbd-nbd",
"map",
image_name]).rstrip('\n')
call(dbg, ["/usr/lib64/qemu-dp/bin/qemu-img",
"create",
"-f", image_meta[meta.TYPE_TAG],
nbd_device,
str(size)])
call(dbg, ["/usr/bin/rbd-nbd",
"unmap",
nbd_device])
#call(dbg, ["/opt/xensource/libexec/nbd_client_manager.py",
# "disconnect",
# "--device",
# nbd_device])
#Datapath.deactivate(dbg, image_meta[meta.URI_TAG][0], 0)
#Datapath.detach(dbg, image_meta[meta.URI_TAG][0], 0)
return image_meta
def _clone(cls, dbg, sr, key, mode, base_meta):
log.debug("%s: librbd.QCOW2Volume.clone: SR: %s Key: %s Mode: %s"
% (dbg, sr, key, mode))
# TODO: Implement overhead calculation for QCOW2 format
size = utils.validate_and_round_vhd_size(base_meta[meta.VIRTUAL_SIZE_TAG])
rbd_size = utils.fullSizeVHD(size)
ceph_cluster = ceph_utils.connect(dbg, sr)
clone_uuid = str(uuid.uuid4())
clone_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
clone_uuid)
try:
if base_meta[meta.KEY_TAG] == key:
base_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
key)
new_base_uuid = str(uuid.uuid4())
new_base_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
new_base_uuid)
rbd_utils.rename(dbg, ceph_cluster, base_name, new_base_name)
rbd_utils.create(dbg, ceph_cluster, base_name, rbd_size)
rbd_utils.create(dbg, ceph_cluster, clone_name, rbd_size)
base_nbd_device = call(dbg, ["/usr/bin/rbd-nbd",
"map",
base_name]).rstrip('\n')
clone_nbd_device = call(dbg, ["/usr/bin/rbd-nbd",
"map",
clone_name]).rstrip('\n')
call(dbg, ["/usr/lib64/qemu-dp/bin/qemu-img",
"create",
"-f", base_meta[meta.TYPE_TAG],
"-b", "rbd:%s" % new_base_name,
base_nbd_device])
call(dbg, ["/usr/lib64/qemu-dp/bin/qemu-img",
"create",
"-f", base_meta[meta.TYPE_TAG],
"-b", "rbd:%s" % new_base_name,
clone_nbd_device])
call(dbg, ["/usr/bin/rbd-nbd",
"unmap",
clone_nbd_device])
call(dbg, ["/usr/bin/rbd-nbd",
"unmap",
base_nbd_device])
new_base_meta = copy.deepcopy(base_meta)
new_base_meta[meta.NAME_TAG] = "(base) %s" % new_base_meta[meta.NAME_TAG]
new_base_meta[meta.KEY_TAG] = new_base_uuid
new_base_meta[meta.UUID_TAG] = new_base_uuid
new_base_meta[meta.URI_TAG] = ["%s/%s" % (sr, new_base_uuid)]
new_base_meta[meta.READ_WRITE_TAG] = False
if meta.ACTIVE_ON_TAG in new_base_meta:
Datapath.snapshot(dbg,new_base_meta[meta.URI_TAG][0], base_meta[meta.URI_TAG][0], 0)
if meta.ACTIVE_ON_TAG in new_base_meta:
new_base_meta[meta.ACTIVE_ON_TAG] = None
new_base_meta[meta.QEMU_PID_TAG] = None
new_base_meta[meta.QEMU_NBD_SOCK_TAG] = None
new_base_meta[meta.QEMU_QMP_SOCK_TAG] = None
new_base_meta[meta.QEMU_QMP_LOG_TAG] = None
meta.RBDMetadataHandler.update(dbg, new_base_meta[meta.URI_TAG][0], new_base_meta)
meta.RBDMetadataHandler.update(dbg, base_meta[meta.URI_TAG][0], base_meta)
else:
base_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
base_meta[meta.UUID_TAG])
rbd_utils.create(dbg, ceph_cluster, clone_name, rbd_size)
clone_nbd_device = call(dbg, ["/usr/bin/rbd-nbd",
"map",
clone_name]).rstrip('\n')
call(dbg, ["/usr/lib64/qemu-dp/bin/qemu-img",
"create",
"-f", base_meta[meta.TYPE_TAG],
"-b", "rbd:%s" % base_name,
clone_nbd_device])
call(dbg, ["/usr/bin/rbd-nbd",
"unmap",
clone_nbd_device])
clone_meta = copy.deepcopy(base_meta)
clone_meta[meta.KEY_TAG] = clone_uuid
clone_meta[meta.UUID_TAG] = clone_uuid
clone_meta[meta.URI_TAG] = ["%s/%s" % (sr, clone_uuid)]
if meta.ACTIVE_ON_TAG in clone_meta:
clone_meta.pop(meta.ACTIVE_ON_TAG, None)
clone_meta.pop(meta.QEMU_PID_TAG, None)
clone_meta.pop(meta.QEMU_NBD_SOCK_TAG, None)
clone_meta.pop(meta.QEMU_QMP_SOCK_TAG, None)
clone_meta.pop(meta.QEMU_QMP_LOG_TAG, None)
if mode is 'snapshot':
clone_meta[meta.READ_WRITE_TAG] = False
clone_meta[meta.SNAPSHOT_OF_TAG] = new_base_meta[meta.UUID_TAG]
elif mode is 'clone':
clone_meta[meta.READ_WRITE_TAG] = True
meta.RBDMetadataHandler.update(dbg, clone_meta[meta.URI_TAG][0], clone_meta)
return clone_meta
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def probe(self, dbg, configuration):
log.debug("{}: SR.probe: configuration={}".format(dbg, configuration))
uri = "rbd+%s://" % configuration[
meta.
IMAGE_FORMAT_TAG] if meta.IMAGE_FORMAT_TAG in configuration else 'rbd://'
uri = "%s%s" % (uri, configuration[meta.CEPH_CLUSTER_TAG])
_uri_ = uri
uri = "%s/%s" % (uri, configuration[meta.SR_UUID_TAG]
) if meta.SR_UUID_TAG in configuration else uri
log.debug("{}: SR.probe: uri to probe: {}".format(dbg, uri))
result = []
ceph_cluster = ceph_utils.connect(dbg, uri)
ceph_cluster_name = utils.get_cluster_name_by_uri(dbg, uri)
ceph_pools = ceph_cluster.list_pools()
log.debug("%s: SR.probe: Available Pools" % dbg)
log.debug(
"%s: SR.probe: ---------------------------------------------------"
% dbg)
for ceph_pool in ceph_pools:
log.debug("%s: SR.probe: %s" % (dbg, ceph_pool))
pool_meta = {}
sr_uuid = utils.get_sr_uuid_by_name(dbg, ceph_pool)
if ceph_pool.startswith(utils.RBDPOOL_PREFIX):
if rbd_utils.if_image_exist(
dbg, ceph_cluster,
'%s/%s' % (ceph_pool, utils.SR_METADATA_IMAGE_NAME)):
pool_meta = meta.RBDMetadataHandler.load(
dbg, "%s/%s/%s" %
(_uri_, utils.get_sr_uuid_by_name(
dbg, ceph_pool), utils.SR_METADATA_IMAGE_NAME),
False)
if (meta.IMAGE_FORMAT_TAG in configuration and (
(meta.CONFIGURATION_TAG in pool_meta and
meta.IMAGE_FORMAT_TAG in pool_meta[meta.CONFIGURATION_TAG]
and configuration[meta.IMAGE_FORMAT_TAG] !=
pool_meta[meta.CONFIGURATION_TAG][meta.IMAGE_FORMAT_TAG])
or (meta.CONFIGURATION_TAG in pool_meta
and meta.IMAGE_FORMAT_TAG
not in pool_meta[meta.CONFIGURATION_TAG])
or meta.CONFIGURATION_TAG not in pool_meta)):
ceph_pool = None
if (meta.SR_UUID_TAG in configuration and
((meta.CONFIGURATION_TAG in pool_meta
and meta.SR_UUID_TAG in pool_meta[meta.CONFIGURATION_TAG]
and configuration[meta.SR_UUID_TAG] !=
pool_meta[meta.CONFIGURATION_TAG][meta.SR_UUID_TAG]) or
(meta.CONFIGURATION_TAG in pool_meta and meta.SR_UUID_TAG
not in pool_meta[meta.CONFIGURATION_TAG]
and configuration[meta.SR_UUID_TAG] != sr_uuid) or
(meta.CONFIGURATION_TAG not in pool_meta
and configuration[meta.SR_UUID_TAG] != sr_uuid))):
ceph_pool = None
if ceph_pool is not None:
_result_ = {}
_result_['complete'] = True
_result_['configuration'] = {}
_result_['configuration'] = copy.deepcopy(configuration)
_result_['extra_info'] = {}
sr = {}
sr['sr'] = "rbd://%s/%s" % (ceph_cluster_name,
utils.get_sr_uuid_by_name(
dbg, ceph_pool))
sr['name'] = pool_meta[
meta.
NAME_TAG] if meta.NAME_TAG in pool_meta else '<CEPHBASED SR>'
sr['description'] = pool_meta[
meta.
DESCRIPTION_TAG] if meta.DESCRIPTION_TAG in pool_meta else '<CEPHBASED SR>'
ceph_cluster_stats = ceph_cluster.get_cluster_stats()
sr['free_space'] = ceph_cluster_stats['kb_avail'] * 1024
sr['total_space'] = ceph_cluster_stats['kb'] * 1024
sr['datasources'] = []
sr['clustered'] = False
sr['health'] = ['Healthy', '']
_result_['sr'] = sr
_result_['configuration'][
'sr_uuid'] = utils.get_sr_uuid_by_name(dbg, ceph_pool)
result.append(_result_)
ceph_utils.disconnect(dbg, ceph_cluster)
return result
def _clone(cls, dbg, sr, key, mode, base_meta):
log.debug("%s: librbd.RAWVolume.clone: SR: %s Key: %s Mode: %s"
% (dbg, sr, key, mode))
ceph_cluster = ceph_utils.connect(dbg, sr)
clone_uuid = str(uuid.uuid4())
clone_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
clone_uuid)
try:
if base_meta[meta.KEY_TAG] == key:
base_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
key)
new_base_uuid = str(uuid.uuid4())
new_base_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
new_base_uuid)
if meta.ACTIVE_ON_TAG in base_meta:
Datapath.suspend(dbg,base_meta[meta.URI_TAG][0], 0)
rbd_utils.rename(dbg, ceph_cluster, base_name, new_base_name)
rbd_utils.snapshot(dbg, ceph_cluster, new_base_name, 'base')
rbd_utils.clone(dbg, ceph_cluster, new_base_name, 'base', base_name)
rbd_utils.clone(dbg, ceph_cluster, new_base_name, 'base', clone_name)
if meta.ACTIVE_ON_TAG in base_meta:
Datapath.resume(dbg,base_meta[meta.URI_TAG][0], 0)
new_base_meta = copy.deepcopy(base_meta)
new_base_meta[meta.NAME_TAG] = "(base) %s" % new_base_meta[meta.NAME_TAG]
new_base_meta[meta.KEY_TAG] = new_base_uuid
new_base_meta[meta.UUID_TAG] = new_base_uuid
new_base_meta[meta.URI_TAG] = ["%s/%s" % (sr, new_base_uuid)]
new_base_meta[meta.READ_WRITE_TAG] = False
if meta.ACTIVE_ON_TAG in new_base_meta:
new_base_meta[meta.ACTIVE_ON_TAG] = None
new_base_meta[meta.QEMU_PID_TAG] = None
new_base_meta[meta.QEMU_NBD_SOCK_TAG] = None
new_base_meta[meta.QEMU_QMP_SOCK_TAG] = None
new_base_meta[meta.QEMU_QMP_LOG_TAG] = None
meta.RBDMetadataHandler.update(dbg, new_base_meta[meta.URI_TAG][0], new_base_meta)
meta.RBDMetadataHandler.update(dbg, base_meta[meta.URI_TAG][0], base_meta)
else:
base_name = "%s%s/%s%s" % (utils.RBDPOOL_PREFIX,
utils.get_sr_uuid_by_uri(dbg, sr),
utils.VDI_PREFIXES[utils.get_vdi_type_by_uri(dbg, sr)],
base_meta[meta.UUID_TAG])
rbd_utils.clone(dbg, ceph_cluster, base_name, 'base', clone_name)
clone_meta = copy.deepcopy(base_meta)
clone_meta[meta.KEY_TAG] = clone_uuid
clone_meta[meta.UUID_TAG] = clone_uuid
clone_meta[meta.URI_TAG] = ["%s/%s" % (sr, clone_uuid)]
if meta.ACTIVE_ON_TAG in clone_meta:
clone_meta[meta.ACTIVE_ON_TAG] = None
clone_meta[meta.QEMU_PID_TAG] = None
clone_meta[meta.QEMU_NBD_SOCK_TAG] = None
clone_meta[meta.QEMU_QMP_SOCK_TAG] = None
clone_meta[meta.QEMU_QMP_LOG_TAG] = None
if mode is 'snapshot':
clone_meta[meta.READ_WRITE_TAG] = False
clone_meta[meta.SNAPSHOT_OF_TAG] = new_base_meta[meta.UUID_TAG]
elif mode is 'clone':
clone_meta[meta.READ_WRITE_TAG] = True
meta.RBDMetadataHandler.update(dbg, clone_meta[meta.URI_TAG][0], clone_meta)
return clone_meta
except Exception:
raise Volume_does_not_exist(key)
finally:
ceph_utils.disconnect(dbg, ceph_cluster)
def create(self, dbg, sr_uuid, configuration, name, description):
log.debug(
"%s: SR.create: sr_uuid %s configuration %s name %s description: %s"
% (dbg, sr_uuid, configuration, name, description))
uri = "rbd+%s+%s://%s/%s" % (configuration['image-format'],
configuration['datapath'],
configuration['cluster'], sr_uuid)
ceph_cluster = ceph_utils.connect(dbg, uri)
ceph_pool_name = utils.get_pool_name_by_uri(dbg, uri)
if ceph_cluster.pool_exists(ceph_pool_name):
raise Exception("Pool %s already exists" % ceph_pool_name)
try:
ceph_cluster.create_pool(ceph_pool_name)
except Exception:
ceph_utils.disconnect(dbg, ceph_cluster)
log.debug("%s: SR.create: Failed to create SR - sr_uuid: %s" %
(dbg, sr_uuid))
raise Exception("Failed to create pool %s" % ceph_pool_name)
try:
rbd_utils.create(
dbg, ceph_cluster, '%s/%s' % (utils.get_pool_name_by_uri(
dbg, uri), utils.SR_METADATA_IMAGE_NAME), 0)
except Exception:
try:
ceph_cluster.delete_pool(ceph_pool_name)
except Exception:
ceph_utils.disconnect(dbg, ceph_cluster)
raise Exception
ceph_utils.disconnect(dbg, ceph_cluster)
log.debug(
"%s: SR.create: Failed to create SR metadata image - sr_uuid: %s"
% (dbg, sr_uuid))
raise Exception("Failed to create pool metadata image %s" %
ceph_pool_name)
configuration['sr_uuid'] = sr_uuid
if description == '':
description = ' '
pool_meta = {
meta.SR_UUID_TAG: sr_uuid,
meta.NAME_TAG: name,
meta.DESCRIPTION_TAG: description,
meta.CONFIGURATION_TAG: json.dumps(configuration)
}
try:
meta.RBDMetadataHandler.update(
dbg, '%s/%s' % (uri, utils.SR_METADATA_IMAGE_NAME), pool_meta,
False)
except Exception:
ceph_utils.disconnect(dbg, ceph_cluster)
raise Exception("Failed to update pool metadata %s" %
ceph_pool_name)
ceph_utils.disconnect(dbg, ceph_cluster)
return configuration
