def show(self, docker_volume_name):
cinder_volume, state = self._get_docker_volume(docker_volume_name)
LOG.info(_LI("Get docker volume {0} {1} with state "
"{2}").format(docker_volume_name, cinder_volume, state))
if state == ATTACH_TO_THIS:
devpath = os.path.realpath(
self._get_connector().get_device_path(cinder_volume))
mp = self._get_mountpoint(docker_volume_name)
LOG.info("Expected devpath: {0} and mountpoint: {1} for volume: "
"{2} {3}".format(devpath, mp, docker_volume_name,
cinder_volume))
mounter = mount.Mounter()
return {"Name": docker_volume_name,
"Mountpoint": mp if mp in mounter.get_mps_by_device(
devpath) else ''}
elif state in (NOT_ATTACH, ATTACH_TO_OTHER):
return {'Name': docker_volume_name, 'Mountpoint': ''}
elif state == UNKNOWN:
msg = _LW("Can't find this volume '{0}' in "
"OpenSDS").format(docker_volume_name)
LOG.warning(msg)
raise exceptions.NotFound(msg)
else:
msg = _LE("Volume '{0}' exists, but not attached to this volume,"
"and current state is {1}").format(docker_volume_name,
state)
raise exceptions.NotMatchedState(msg)
def list(self):
LOG.info(_LI("Start to retrieve all docker volumes from OpenSDS"))
docker_volumes = []
try:
for vol in self.opensdsclient.list():
# LOG.info(_LI("Retrieve docker volumes {0} from OpenSDS "
# "successfully").format(vol))
docker_volume_name = vol['name']
if not docker_volume_name:
continue
mountpoint = self._get_mountpoint(docker_volume_name)
vol = APIDictWrapper(vol)
devpath = os.path.realpath(
self._get_connector().get_device_path(vol))
mps = mount.Mounter().get_mps_by_device(devpath)
mountpoint = mountpoint if mountpoint in mps else ''
docker_vol = {'Name': docker_volume_name,
'Mountpoint': mountpoint}
docker_volumes.append(docker_vol)
except cinder_exception.ClientException as e:
LOG.error(_LE("Retrieve volume list failed. Error: {0}").format(e))
raise
LOG.info(_LI("Retrieve docker volumes {0} from OpenSDS "
"successfully").format(docker_volumes))
return docker_volumes
def list(self):
LOG.info(_LI("Start to retrieve all docker volumes from Cinder"))
docker_volumes = []
try:
search_opts = {'metadata': {consts.VOLUME_FROM: CONF.volume_from}}
for vol in self.cinderclient.volumes.list(search_opts=search_opts):
docker_volume_name = vol.name
if not docker_volume_name:
continue
mountpoint = self._get_mountpoint(vol.name)
devpath = os.path.realpath(
self._get_connector().get_device_path(vol))
mps = mount.Mounter().get_mps_by_device(devpath)
mountpoint = mountpoint if mountpoint in mps else ''
docker_vol = {
'Name': docker_volume_name,
'Mountpoint': mountpoint
}
docker_volumes.append(docker_vol)
except cinder_exception.ClientException as e:
LOG.error(_LE("Retrieve volume list failed. Error: %s"), e)
raise
LOG.info(_LI("Retrieve docker volumes %s from Cinder "
"successfully"), docker_volumes)
return docker_volumes
def disconnect_volume(self, share, **disconnect_opts):
mountpoint = self.get_mountpoint(share)
mount.Mounter().unmount(mountpoint)
self._access_deny(share)
def _check_access_binded(s):
sal = self.manilaclient.shares.access_list(s)
share_proto = s.share_proto
access_type = self.proto_access_type_map.get(share_proto)
access_to = self._get_access_to(access_type)
for a in sal:
if a.access_type == access_type and a.access_to == access_to:
if a.state in ('error', 'error_deleting'):
raise exceptions.NotMatchedState(
"Revoke access {0} failed".format(a))
return True
return False
start_time = time.time()
while time.time() - start_time < consts.ACCSS_DENY_TIMEOUT:
if not _check_access_binded(share):
LOG.info("Disconnect share %s successfully", share)
return
time.sleep(consts.SCAN_INTERVAL)
raise exceptions.TimeoutException("Disconnect volume timeout")
def show(self, docker_volume_name):
cinder_volume, state = self._get_docker_volume(docker_volume_name)
LOG.info(_LI("Get docker volume %(d_v)s %(vol)s with state %(st)s"), {
'd_v': docker_volume_name,
'vol': cinder_volume,
'st': state
})
if state == ATTACH_TO_THIS:
devpath = os.path.realpath(
self._get_connector().get_device_path(cinder_volume))
mp = self._get_mountpoint(docker_volume_name)
LOG.info(
_LI("Expected devpath: %(dp)s and mountpoint: %(mp)s for"
" volume: %(d_v)s %(vol)s"), {
'dp': devpath,
'mp': mp,
'd_v': docker_volume_name,
'vol': cinder_volume
})
mounter = mount.Mounter()
return {
"Name":
docker_volume_name,
"Mountpoint":
mp if mp in mounter.get_mps_by_device(devpath) else ''
}
elif state in (NOT_ATTACH, ATTACH_TO_OTHER):
return {'Name': docker_volume_name, 'Mountpoint': ''}
elif state == UNKNOWN:
msg = _LW("Can't find this volume '{0}' in "
"Cinder").format(docker_volume_name)
LOG.warning(msg)
raise exceptions.NotFound(msg)
else:
msg = _LE("Volume '{0}' exists, but not attached to this volume,"
"and current state is {1}").format(
docker_volume_name, state)
raise exceptions.NotMatchedState(msg)
def delete(self, docker_volume_name):
cinder_volume, state = self._get_docker_volume(docker_volume_name)
LOG.info(_LI("Get docker volume {0} {1} with state "
"{2}").format(docker_volume_name, cinder_volume, state))
if state == ATTACH_TO_THIS:
link_path = self._get_connector().get_device_path(cinder_volume)
if not link_path or not os.path.exists(link_path):
msg = _LE(
"Could not find device link path for volume {0} {1} "
"in host").format(docker_volume_name, cinder_volume)
LOG.error(msg)
raise exceptions.FuxiException(msg)
devpath = os.path.realpath(link_path)
if not os.path.exists(devpath):
msg = _LE("Could not find device path for volume {0} {1} in "
"host").format(docker_volume_name, cinder_volume)
LOG.error(msg)
raise exceptions.FuxiException(msg)
mounter = mount.Mounter()
mps = mounter.get_mps_by_device(devpath)
ref_count = len(mps)
if ref_count > 0:
mountpoint = self._get_mountpoint(docker_volume_name)
if mountpoint in mps:
mounter.unmount(mountpoint)
self._clear_mountpoint(mountpoint)
# If this volume is still mounted on other mount point,
# then return.
if ref_count > 1:
return True
else:
return True
# Detach device from this server.
self._get_connector().disconnect_volume(cinder_volume)
available_volume = self.opensdsclient.get(cinder_volume.id)
# If this volume is not used by other server any more,
# than delete it from Cinder.
available_volume = APIDictWrapper(available_volume)
if not available_volume.attachments:
msg = _LW("No other servers still use this volume {0} "
"{1} any more, so delete it from OpenSDS"
"").format(docker_volume_name, cinder_volume)
LOG.warning(msg)
self._delete_volume(available_volume)
return True
elif state == NOT_ATTACH:
self._delete_volume(cinder_volume)
return True
elif state == ATTACH_TO_OTHER:
msg = _LW("Volume %s is still in use, could not delete it")
LOG.warning(msg, cinder_volume)
return True
elif state == UNKNOWN:
return False
else:
msg = _LE("Volume %(vol_name)s %(c_vol)s "
"state %(state)s is invalid")
LOG.error(msg, {'vol_name': docker_volume_name,
'c_vol': cinder_volume,
'state': state})
raise exceptions.NotMatchedState()