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 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)