def disconnect_volume(self, volume, **disconnect_opts):
try:
volume = self.cinderclient.volumes.get(volume.id)
except cinder_exception.ClientException as e:
LOG.error("Get Volume %s from Cinder failed", volume.id)
raise
try:
link_path = self.get_device_path(volume)
utils.execute('rm', '-f', link_path, run_as_root=True)
except processutils.ProcessExecutionError as e:
LOG.warning(
"Error happened when remove docker volume"
" mountpoint directory. Error: %s", e)
try:
self.novaclient.volumes.delete_server_volume(
utils.get_instance_uuid(), volume.id)
except nova_exception.ClientException as e:
LOG.error("Detaching volume %(vol)s failed. Err: %(err)s", {
'vol': volume.id,
'err': e
})
raise
volume_monitor = state_monitor.StateMonitor(self.cinderclient, volume,
'available', (
'in-use',
'detaching',
))
return volume_monitor.monitor_cinder_volume()
def disconnect_volume(self, volume, **disconnect_opts):
try:
volume = self.cinderclient.volumes.get(volume.id)
except cinder_exception.ClientException as e:
msg = _LE("Get Volume {0} from Cinder failed").format(volume.id)
LOG.error(msg)
raise
try:
link_path = self.get_device_path(volume)
utils.execute('rm', '-f', link_path, run_as_root=True)
except processutils.ProcessExecutionError as e:
msg = _LE("Error happened when remove docker volume "
"mountpoint directory. Error: {0}").format(e)
LOG.warn(msg)
try:
self.novaclient.volumes.delete_server_volume(
utils.get_instance_uuid(),
volume.id)
except nova_exception.ClientException as e:
msg = _LE("Detaching volume {0} failed. "
"Err: {1}").format(volume.id, e)
LOG.error(msg)
raise
volume_monitor = state_monitor.StateMonitor(self.cinderclient,
volume,
'available',
('in-use', 'detaching',))
return volume_monitor.monitor_cinder_volume()
def get_host_id():
"""Get a value that could represent this server."""
host_id = None
volume_connector = cinder_conf.volume_connector
if volume_connector == OPENSTACK:
host_id = utils.get_instance_uuid()
elif volume_connector == OSBRICK:
host_id = utils.get_hostname().lower()
return host_id
def get_host_id():
"""Get a value that could represent this server."""
host_id = None
volume_connector = cinder_conf.volume_connector
if volume_connector == OPENSTACK:
host_id = utils.get_instance_uuid()
elif volume_connector == OSBRICK:
host_id = utils.get_hostname().lower()
return host_id
def connect_volume(self, volume, **connect_opts):
bdm = blockdevice.BlockerDeviceManager()
ori_devices = bdm.device_scan()
# Do volume-attach
try:
server_id = connect_opts.get('server_id', None)
if not server_id:
server_id = utils.get_instance_uuid()
LOG.info("Start to connect to volume %s", volume)
nova_volume = self.novaclient.volumes.create_server_volume(
server_id=server_id, volume_id=volume.id, device=None)
volume_monitor = state_monitor.StateMonitor(
self.cinderclient, nova_volume, 'in-use', (
'available',
'attaching',
))
attached_volume = volume_monitor.monitor_cinder_volume()
except nova_exception.ClientException as ex:
LOG.error(
"Attaching volume %(vol)s to server %(s)s "
"failed. Error: %(err)s", {
'vol': volume.id,
's': server_id,
'err': ex
})
raise
# Get all devices on host after do volume-attach,
# and then find attached device.
LOG.info("After connected to volume, scan the added "
"block device on host")
curr_devices = bdm.device_scan()
start_time = time.time()
delta_devices = list(set(curr_devices) - set(ori_devices))
while not delta_devices:
time.sleep(consts.DEVICE_SCAN_TIME_DELAY)
curr_devices = bdm.device_scan()
delta_devices = list(set(curr_devices) - set(ori_devices))
if time.time() - start_time > consts.DEVICE_SCAN_TIMEOUT:
msg = _("Could not detect added device with " "limited time")
raise exceptions.FuxiException(msg)
LOG.info("Get extra added block device %s", delta_devices)
for device in delta_devices:
if bdm.get_device_size(device) == volume.size:
device = device.replace('/sys/block', '/dev')
LOG.info(
"Find attached device %(dev)s"
" for volume %(at)s %(vol)s", {
'dev': device,
'at': attached_volume.name,
'vol': volume
})
link_path = os.path.join(consts.VOLUME_LINK_DIR, volume.id)
try:
utils.execute('ln',
'-s',
device,
link_path,
run_as_root=True)
except processutils.ProcessExecutionError as e:
LOG.error(
"Error happened when create link file for"
" block device attached by Nova."
" Error: %s", e)
raise
return {'path': link_path}
LOG.warning("Could not find matched device")
raise exceptions.NotFound("Not Found Matched Device")
def connect_volume(self, volume, **connect_opts):
bdm = blockdevice.BlockerDeviceManager()
ori_devices = bdm.device_scan()
# Do volume-attach
try:
server_id = connect_opts.get('server_id', None)
if not server_id:
server_id = utils.get_instance_uuid()
LOG.info(_LI("Start to connect to volume {0}").format(volume))
nova_volume = self.novaclient.volumes.create_server_volume(
server_id=server_id,
volume_id=volume.id,
device=None)
volume_monitor = state_monitor.StateMonitor(
self.cinderclient,
nova_volume,
'in-use',
('available', 'attaching',))
attached_volume = volume_monitor.monitor_cinder_volume()
except nova_exception.ClientException as ex:
LOG.error(_LE("Attaching volume {0} to server {1} "
"failed. Error: {2}").format(volume.id,
server_id, ex))
raise
# Get all devices on host after do volume-attach,
# and then find attached device.
LOG.info(_LI("After connected to volume, scan the added "
"block device on host"))
curr_devices = bdm.device_scan()
start_time = time.time()
delta_devices = list(set(curr_devices) - set(ori_devices))
while not delta_devices:
time.sleep(consts.DEVICE_SCAN_TIME_DELAY)
curr_devices = bdm.device_scan()
delta_devices = list(set(curr_devices) - set(ori_devices))
if time.time() - start_time > consts.DEVICE_SCAN_TIMEOUT:
msg = _("Could not detect added device with "
"limited time")
raise exceptions.FuxiException(msg)
LOG.info(_LI("Get extra added block device {0}"
"").format(delta_devices))
for device in delta_devices:
if bdm.get_device_size(device) == volume.size:
device = device.replace('/sys/block', '/dev')
msg = _LI("Find attached device {0} for volume {1} "
"{2}").format(device,
attached_volume.name,
volume)
LOG.info(msg)
link_path = os.path.join(consts.VOLUME_LINK_DIR, volume.id)
try:
utils.execute('ln', '-s', device,
link_path,
run_as_root=True)
except processutils.ProcessExecutionError as e:
msg = _LE("Error happened when create link file for "
"block device attached by Nova. "
"Error: {0}").format(e)
LOG.error(msg)
raise
return {'path': link_path}
LOG.warm(_LW("Could not find matched device"))
raise exceptions.NotFound("Not Found Matched Device")
