def connect(self):
self.device_info = connector.connect_volume(self.connection)
self.device_path = self.device_info['path']
print "Virtman: Path OK! device_path = ", self.device_path
self.connected = True
LOG.debug("Virtman: connect to path: %s", str(self))
return self.device_path
def connect(path):
"""
:type path: Path
"""
LOG.debug("Virtman: connect to path: %s", str(path))
path.device_info = connector.connect_volume(path.connection)
path.device_path = path.device_info['path']
path.connected = True
return path.device_path
def create_snapshot(self):
LOG.debug("Virtman: creating a snapshot for the VM instance")
self.device_info = connector.connect_volume(self.connection)
#snapshot_link is a symlink, like /dev/disk/by-path/xxx
self.snapshot_link = self.device_info['path']
if not os.path.exists(self.snapshot_link):
raise Exception("ERROR! Could NOT find snapshot path file %s!" % self.snapshot_link)
#snapshot_dev: like /dev/sd*, mounted from remote volume, like Cinder Volume
self.snapshot_dev = os.path.realpath(self.snapshot_link)
if not os.path.exists(self.snapshot_dev):
raise Exception("ERROR! Could NOT find snapshot device %s!" % self.snapshot_dev)
if self.snapshot_with_cache:
self.snapshot_path = self._create_cache(self.snapshot_dev)
else:
self.snapshot_path = self.snapshot_dev
LOG.debug(
"Virtman: success! snapshot_path = %s snapshot_link = %s" % (self.snapshot_path, self.snapshot_link))
return self.snapshot_path, self.snapshot_link