def manage_existing_get_size(self, volume, ref):
"""Return size of an existing Vdisk for manage_existing.
existing_ref is a dictionary of the form:
{'source-id': <uid of disk>}
Optional elements are:
'manage_if_in_use': True/False (default is False)
If set to True, a volume will be managed even if it is currently
attached to a host system.
"""
# Check that the reference is valid
if 'source-id' not in ref:
reason = _('Reference must contain source-id element.')
raise exception.ManageExistingInvalidReference(existing_ref=ref,
reason=reason)
# Check for existence of the vdisk
vdisk = self._helpers.vdisk_by_uid(ref['source-id'])
if vdisk is None:
reason = (_('No vdisk with the UID specified by source-id %s.')
% (ref['source-id']))
raise exception.ManageExistingInvalidReference(existing_ref=ref,
reason=reason)
# Check if the disk is in use, if we need to.
manage_if_in_use = ref.get('manage_if_in_use', False)
if (not manage_if_in_use and
self._helpers.is_vdisk_in_use(vdisk['name'])):
reason = _('The specified vdisk is mapped to a host.')
raise exception.ManageExistingInvalidReference(existing_ref=ref,
reason=reason)
return int(math.ceil(float(vdisk['capacity']) / units.Gi))
def remove_iscsi_target(self, tid, lun, vol_id, vol_name, **kwargs):
LOG.info(_('Removing iscsi_target for: %s') % vol_id)
vol_uuid_file = vol_name
volume_path = os.path.join(self.volumes_dir, vol_uuid_file)
if not os.path.exists(volume_path):
LOG.warning(_('Volume path %s does not exist, '
'nothing to remove.') % volume_path)
return
if os.path.isfile(volume_path):
iqn = '%s%s' % (self.iscsi_target_prefix,
vol_uuid_file)
else:
raise exception.ISCSITargetRemoveFailed(volume_id=vol_id)
try:
# NOTE(vish): --force is a workaround for bug:
# https://bugs.launchpad.net/cinder/+bug/1159948
self._execute('tgt-admin',
'--force',
'--delete',
iqn,
run_as_root=True)
except putils.ProcessExecutionError as e:
LOG.error(_("Failed to remove iscsi target for volume "
"id:%(vol_id)s: %(e)s")
% {'vol_id': vol_id, 'e': str(e)})
raise exception.ISCSITargetRemoveFailed(volume_id=vol_id)
os.unlink(volume_path)
def create_lv_snapshot(self, name, source_lv_name, lv_type='default'):
"""Creates a snapshot of a logical volume.
:param name: Name to assign to new snapshot
:param source_lv_name: Name of Logical Volume to snapshot
:param lv_type: Type of LV (default or thin)
"""
source_lvref = self.get_volume(source_lv_name)
if source_lvref is None:
LOG.error(_("Unable to find LV: %s") % source_lv_name)
return False
cmd = ['lvcreate', '--name', name,
'--snapshot', '%s/%s' % (self.vg_name, source_lv_name)]
if lv_type != 'thin':
size = source_lvref['size']
cmd.extend(['-L', '%sg' % (size)])
try:
self._execute(*cmd,
root_helper=self._root_helper,
run_as_root=True)
except putils.ProcessExecutionError as err:
LOG.exception(_('Error creating snapshot'))
LOG.error(_('Cmd :%s') % err.cmd)
LOG.error(_('StdOut :%s') % err.stdout)
LOG.error(_('StdErr :%s') % err.stderr)
raise
def _get_pool_info(self, poolid):
"""Query pool information."""
ret, output = self.dpl.get_pool(poolid)
if ret == errno.EAGAIN:
ret, event_uuid = self._get_event_uuid(output)
if ret == 0:
status = self._wait_event(self.dpl.get_pool_status, poolid,
event_uuid)
if status['state'] != 'available':
msg = _('Flexvisor failed to get pool info %(id)s: '
'%(status)s.') % {'id': poolid, 'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
else:
ret = 0
output = status.get('output', {})
else:
LOG.error(_('Flexvisor failed to get pool info '
'(failed to get event)%s.') % (poolid))
raise exception.VolumeBackendAPIException(
data="failed to get event")
elif ret != 0:
msg = _('Flexvisor failed to get pool info %(id)s: '
'%(status)s.') % {'id': poolid, 'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
else:
msg = 'Flexvisor succeed to get pool info.'
LOG.debug(msg)
return ret, output
def delete(self, name):
"""Delete logical volume or snapshot.
:param name: Name of LV to delete
"""
try:
self._execute('lvremove',
'-f',
'%s/%s' % (self.vg_name, name),
root_helper=self._root_helper, run_as_root=True)
except putils.ProcessExecutionError as err:
mesg = (_('Error reported running lvremove: CMD: %(command)s, '
'RESPONSE: %(response)s') %
{'command': err.cmd, 'response': err.stderr})
LOG.error(mesg)
LOG.warning(_('Attempting udev settle and retry of lvremove...'))
self._execute('udevadm', 'settle',
root_helper=self._root_helper,
run_as_root=True)
self._execute('lvremove',
'-f',
'%s/%s' % (self.vg_name, name),
root_helper=self._root_helper, run_as_root=True)
def _check(self, match, target_dict, cred_dict):
try:
match_kind, match_value = match.split(':', 1)
except Exception:
LOG.exception(_("Failed to understand rule %(match)r") % locals())
# If the rule is invalid, fail closed
return False
func = None
try:
old_func = getattr(self, '_check_%s' % match_kind)
except AttributeError:
func = self._checks.get(match_kind, self._checks.get(None, None))
else:
LOG.warning(_("Inheritance-based rules are deprecated; update "
"_check_%s") % match_kind)
func = lambda brain, kind, value, target, cred: old_func(value,
target,
cred)
if not func:
LOG.error(_("No handler for matches of kind %s") % match_kind)
# Fail closed
return False
return func(self, match_kind, match_value, target_dict, cred_dict)
def create_volume(self, name, size_str, lv_type='default', mirror_count=0):
"""Creates a logical volume on the object's VG.
:param name: Name to use when creating Logical Volume
:param size_str: Size to use when creating Logical Volume
:param lv_type: Type of Volume (default or thin)
:param mirror_count: Use LVM mirroring with specified count
"""
if lv_type == 'thin':
pool_path = '%s/%s' % (self.vg_name, self.vg_thin_pool)
cmd = ['lvcreate', '-T', '-V', size_str, '-n', name, pool_path]
else:
cmd = ['lvcreate', '-n', name, self.vg_name, '-L', size_str]
if mirror_count > 0:
cmd.extend(['-m', mirror_count, '--nosync'])
terras = int(size_str[:-1]) / 1024.0
if terras >= 1.5:
rsize = int(2 ** math.ceil(math.log(terras) / math.log(2)))
# NOTE(vish): Next power of two for region size. See:
# http://red.ht/U2BPOD
cmd.extend(['-R', str(rsize)])
try:
self._execute(*cmd,
root_helper=self._root_helper,
run_as_root=True)
except putils.ProcessExecutionError as err:
LOG.exception(_('Error creating Volume'))
LOG.error(_('Cmd :%s') % err.cmd)
LOG.error(_('StdOut :%s') % err.stdout)
LOG.error(_('StdErr :%s') % err.stderr)
raise
def activate_lv(self, name, is_snapshot=False):
"""Ensure that logical volume/snapshot logical volume is activated.
:param name: Name of LV to activate
:raises: putils.ProcessExecutionError
"""
# This is a no-op if requested for a snapshot on a version
# of LVM that doesn't support snapshot activation.
# (Assume snapshot LV is always active.)
if is_snapshot and not self.supports_snapshot_lv_activation:
return
lv_path = self.vg_name + '/' + self._mangle_lv_name(name)
# Must pass --yes to activate both the snap LV and its origin LV.
# Otherwise lvchange asks if you would like to do this interactively,
# and fails.
cmd = ['lvchange', '-a', 'y', '--yes']
if self.supports_lvchange_ignoreskipactivation:
cmd.append('-K')
cmd.append(lv_path)
try:
self._execute(*cmd,
root_helper=self._root_helper,
run_as_root=True)
except putils.ProcessExecutionError as err:
LOG.exception(_('Error activating LV'))
LOG.error(_('Cmd :%s') % err.cmd)
LOG.error(_('StdOut :%s') % err.stdout)
LOG.error(_('StdErr :%s') % err.stderr)
raise
def _connect(self, params):
"""Connect to rabbit. Re-establish any queues that may have
been declared before if we are reconnecting. Exceptions should
be handled by the caller.
"""
if self.connection:
LOG.info(_("Reconnecting to AMQP server on "
"%(hostname)s:%(port)d") % params)
try:
self.connection.release()
except self.connection_errors:
pass
# Setting this in case the next statement fails, though
# it shouldn't be doing any network operations, yet.
self.connection = None
self.connection = kombu.connection.BrokerConnection(**params)
self.connection_errors = self.connection.connection_errors
if self.memory_transport:
# Kludge to speed up tests.
self.connection.transport.polling_interval = 0.0
self.consumer_num = itertools.count(1)
self.connection.connect()
self.channel = self.connection.channel()
# work around 'memory' transport bug in 1.1.3
if self.memory_transport:
self.channel._new_queue('ae.undeliver')
for consumer in self.consumers:
consumer.reconnect(self.channel)
LOG.info(_('Connected to AMQP server on %(hostname)s:%(port)d') %
params)
def _create_ibmnas_snap(self, src, dest, mount_path):
"""Create volume clones and snapshots."""
LOG.debug("Enter _create_ibmnas_snap: src %(src)s, dest %(dest)s"
% {'src': src, 'dest': dest})
if mount_path is not None:
tmp_file_path = dest + '.snap'
ssh_cmd = ['mkclone', '-p', dest, '-s', src, '-t', tmp_file_path]
try:
self._run_ssh(ssh_cmd)
except processutils.ProcessExecutionError as e:
msg = (_("Failed in _create_ibmnas_snap during "
"create_snapshot. Error: %s") % e.stderr)
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
#Now remove the tmp file
tmp_file_local_path = os.path.join(mount_path,
os.path.basename(tmp_file_path))
self._execute('rm', '-f', tmp_file_local_path, run_as_root=True)
else:
ssh_cmd = ['mkclone', '-s', src, '-t', dest]
try:
self._run_ssh(ssh_cmd)
except processutils.ProcessExecutionError as e:
msg = (_("Failed in _create_ibmnas_snap during "
"create_volume_from_snapshot. Error: %s") % e.stderr)
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
LOG.debug("Exit _create_ibmnas_snap")
def fetch_verify_image(context, image_service, image_id, dest,
user_id=None, project_id=None, size=None):
fetch(context, image_service, image_id, dest,
None, None)
with fileutils.remove_path_on_error(dest):
data = qemu_img_info(dest)
fmt = data.file_format
if fmt is None:
raise exception.ImageUnacceptable(
reason=_("'qemu-img info' parsing failed."),
image_id=image_id)
backing_file = data.backing_file
if backing_file is not None:
raise exception.ImageUnacceptable(
image_id=image_id,
reason=(_("fmt=%(fmt)s backed by: %(backing_file)s") %
{'fmt': fmt, 'backing_file': backing_file}))
# NOTE(xqueralt): If the image virtual size doesn't fit in the
# requested volume there is no point on resizing it because it will
# generate an unusable image.
if size is not None and data.virtual_size > size:
params = {'image_size': data.virtual_size, 'volume_size': size}
reason = _("Size is %(image_size)dGB and doesn't fit in a "
"volume of size %(volume_size)dGB.") % params
raise exception.ImageUnacceptable(image_id=image_id, reason=reason)
def accept(self, req, id, body):
"""Accept a new volume transfer."""
transfer_id = id
LOG.debug('Accepting volume transfer %s', transfer_id)
if not self.is_valid_body(body, 'accept'):
raise exc.HTTPBadRequest()
context = req.environ['cinder.context']
try:
accept = body['accept']
auth_key = accept['auth_key']
except KeyError:
msg = _("Incorrect request body format")
raise exc.HTTPBadRequest(explanation=msg)
LOG.audit(_("Accepting transfer %s"), transfer_id,
context=context)
try:
accepted_transfer = self.transfer_api.accept(context, transfer_id,
auth_key)
except exception.VolumeSizeExceedsAvailableQuota as error:
raise exc.HTTPRequestEntityTooLarge(
explanation=error.msg, headers={'Retry-After': 0})
except exception.InvalidVolume as error:
raise exc.HTTPBadRequest(explanation=error.msg)
transfer = \
self._view_builder.summary(req,
dict(accepted_transfer.iteritems()))
return transfer
def update(self, req, id, body):
context = req.environ['cinder.context']
authorize_update(context)
project_id = id
if not self.is_valid_body(body, 'quota_set'):
msg = (_("Missing required element quota_set in request body."))
raise webob.exc.HTTPBadRequest(explanation=msg)
bad_keys = []
for key, value in body['quota_set'].items():
if (key not in QUOTAS and key not in NON_QUOTA_KEYS):
bad_keys.append(key)
continue
if len(bad_keys) > 0:
msg = _("Bad key(s) in quota set: %s") % ",".join(bad_keys)
raise webob.exc.HTTPBadRequest(explanation=msg)
for key in body['quota_set'].keys():
if key in NON_QUOTA_KEYS:
continue
value = self._validate_quota_limit(body['quota_set'][key])
try:
db.quota_update(context, project_id, key, value)
except exception.ProjectQuotaNotFound:
db.quota_create(context, project_id, key, value)
except exception.AdminRequired:
raise webob.exc.HTTPForbidden()
return {'quota_set': self._get_quotas(context, id)}
def delete_volume(self, volume):
"""Delete SolidFire Volume from device.
SolidFire allows multiple volumes with same name,
volumeID is what's guaranteed unique.
"""
LOG.debug("Enter SolidFire delete_volume...")
sfaccount = self._get_sfaccount(volume['project_id'])
if sfaccount is None:
LOG.error(_("Account for Volume ID %s was not found on "
"the SolidFire Cluster!") % volume['id'])
LOG.error(_("This usually means the volume was never "
"successfully created."))
return
params = {'accountID': sfaccount['accountID']}
sf_vol = self._get_sf_volume(volume['id'], params)
if sf_vol is not None:
params = {'volumeID': sf_vol['volumeID']}
data = self._issue_api_request('DeleteVolume', params)
if 'result' not in data:
msg = _("Failed to delete SolidFire Volume: %s") % data
raise exception.SolidFireAPIException(msg)
else:
LOG.error(_("Volume ID %s was not found on "
"the SolidFire Cluster!"), volume['id'])
LOG.debug("Leaving SolidFire delete_volume")
def create(self, req, body):
"""Create a new volume transfer."""
LOG.debug('Creating new volume transfer %s', body)
if not self.is_valid_body(body, 'transfer'):
raise exc.HTTPBadRequest()
context = req.environ['cinder.context']
try:
transfer = body['transfer']
volume_id = transfer['volume_id']
except KeyError:
msg = _("Incorrect request body format")
raise exc.HTTPBadRequest(explanation=msg)
name = transfer.get('name', None)
LOG.audit(_("Creating transfer of volume %s"),
volume_id,
context=context)
try:
new_transfer = self.transfer_api.create(context, volume_id, name)
except exception.InvalidVolume as error:
raise exc.HTTPBadRequest(explanation=error.msg)
except exception.VolumeNotFound as error:
raise exc.HTTPNotFound(explanation=error.msg)
transfer = self._view_builder.create(req,
dict(new_transfer.iteritems()))
return transfer
def _prepare_fc_map(self, fc_map_id, timeout):
self.ssh.prestartfcmap(fc_map_id)
mapping_ready = False
wait_time = 5
max_retries = (timeout / wait_time) + 1
for try_number in range(1, max_retries):
mapping_attrs = self._get_flashcopy_mapping_attributes(fc_map_id)
if (mapping_attrs is None or
'status' not in mapping_attrs):
break
if mapping_attrs['status'] == 'prepared':
mapping_ready = True
break
elif mapping_attrs['status'] == 'stopped':
self.ssh.prestartfcmap(fc_map_id)
elif mapping_attrs['status'] != 'preparing':
msg = (_('Unexecpted mapping status %(status)s for mapping'
'%(id)s. Attributes: %(attr)s')
% {'status': mapping_attrs['status'],
'id': fc_map_id,
'attr': mapping_attrs})
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
greenthread.sleep(wait_time)
if not mapping_ready:
msg = (_('Mapping %(id)s prepare failed to complete within the'
'allotted %(to)d seconds timeout. Terminating.')
% {'id': fc_map_id,
'to': timeout})
LOG.error(msg)
raise exception.VolumeDriverException(message=msg)
def _get_sf_volume(self, uuid, params):
data = self._issue_api_request('ListVolumesForAccount', params)
if 'result' not in data:
msg = _("Failed to get SolidFire Volume: %s") % data
raise exception.SolidFireAPIException(msg)
found_count = 0
sf_volref = None
for v in data['result']['volumes']:
if uuid in v['name']:
found_count += 1
sf_volref = v
LOG.debug("Mapped SolidFire volumeID %(sfid)s "
"to cinder ID %(uuid)s." %
{'sfid': v['volumeID'],
'uuid': uuid})
if found_count == 0:
# NOTE(jdg): Previously we would raise here, but there are cases
# where this might be a cleanup for a failed delete.
# Until we get better states we'll just log an error
LOG.error(_("Volume %s, not found on SF Cluster."), uuid)
if found_count > 1:
LOG.error(_("Found %(count)s volumes mapped to id: %(uuid)s.") %
{'count': found_count,
'uuid': uuid})
raise exception.DuplicateSfVolumeNames(vol_name=uuid)
return sf_volref
def ssh_execute(ssh, cmd, process_input=None,
addl_env=None, check_exit_code=True):
LOG.debug('Running cmd (SSH): %s', cmd)
if addl_env:
raise InvalidArgumentError(_('Environment not supported over SSH'))
if process_input:
# This is (probably) fixable if we need it...
raise InvalidArgumentError(_('process_input not supported over SSH'))
stdin_stream, stdout_stream, stderr_stream = ssh.exec_command(cmd)
channel = stdout_stream.channel
# NOTE(justinsb): This seems suspicious...
# ...other SSH clients have buffering issues with this approach
stdout = stdout_stream.read()
stderr = stderr_stream.read()
stdin_stream.close()
exit_status = channel.recv_exit_status()
# exit_status == -1 if no exit code was returned
if exit_status != -1:
LOG.debug('Result was %s' % exit_status)
if check_exit_code and exit_status != 0:
raise ProcessExecutionError(exit_code=exit_status,
stdout=stdout,
stderr=stderr,
cmd=cmd)
return (stdout, stderr)
def _error(self, inner, req):
if not isinstance(inner, exception.QuotaError):
LOG.exception(_("Caught error: %s"), unicode(inner))
safe = getattr(inner, 'safe', False)
headers = getattr(inner, 'headers', None)
status = getattr(inner, 'code', 500)
if status is None:
status = 500
msg_dict = dict(url=req.url, status=status)
LOG.info(_("%(url)s returned with HTTP %(status)d") % msg_dict)
outer = self.status_to_type(status)
if headers:
outer.headers = headers
# NOTE(johannes): We leave the explanation empty here on
# purpose. It could possibly have sensitive information
# that should not be returned back to the user. See
# bugs 868360 and 874472
# NOTE(eglynn): However, it would be over-conservative and
# inconsistent with the EC2 API to hide every exception,
# including those that are safe to expose, see bug 1021373
if safe:
msg = (inner.msg if isinstance(inner, exception.CinderException)
else unicode(inner))
params = {'exception': inner.__class__.__name__,
'explanation': msg}
outer.explanation = _('%(exception)s: %(explanation)s') % params
return wsgi.Fault(outer)
def create(self, context, volume_id, display_name):
"""Creates an entry in the transfers table."""
volume_api.check_policy(context, 'create_transfer')
LOG.info("Generating transfer record for volume %s" % volume_id)
volume_ref = self.db.volume_get(context, volume_id)
if volume_ref['status'] != "available":
raise exception.InvalidVolume(reason=_("status must be available"))
# The salt is just a short random string.
salt = self._get_random_string(CONF.volume_transfer_salt_length)
auth_key = self._get_random_string(CONF.volume_transfer_key_length)
crypt_hash = self._get_crypt_hash(salt, auth_key)
# TODO(ollie): Transfer expiry needs to be implemented.
transfer_rec = {'volume_id': volume_id,
'display_name': display_name,
'salt': salt,
'crypt_hash': crypt_hash,
'expires_at': None}
try:
transfer = self.db.transfer_create(context, transfer_rec)
except Exception:
LOG.error(_("Failed to create transfer record for %s") % volume_id)
raise
return {'id': transfer['id'],
'volume_id': transfer['volume_id'],
'display_name': transfer['display_name'],
'auth_key': auth_key,
'created_at': transfer['created_at']}
def start_execute_cmd(self,cmd,type):
fsc_ip = self.get_ip_port()
manage_ip = self.get_manage_ip()
ip_num = len(fsc_ip)
LOG.debug(_("fsc_ip is %s") %fsc_ip)
if ip_num <= 0:
return None
if ip_num > 3:
ip_num = 3
exec_result=''
result=''
if type:
for ip in fsc_ip:
cmd_args=''
ip.replace('\n','')
cmd_args ='sudo cinder-rootwrap /etc/cinder/rootwrap.conf ' + fsc_cli + ' '+ '--ip' + ' '+ ip.replace('\n','') + ' '+ '--manage_ip' + ' '+ manage_ip.replace('\n','') + ' '+ '--port' + ' '+ fsc_port + ' '+ cmd
LOG.debug(_("DSWARE cmd_args is %s") %cmd_args)
exec_result=self.execute(cmd_args)
if exec_result:
for line in exec_result:
if re.search('^result=0', line):
return exec_result
elif re.search('^result=50150007', line):
return 'result=0'
elif re.search('^result=50150008', line):
return 'result=0'
elif re.search('^result=50', line):
return exec_result
return exec_result
else:
for ip in fsc_ip:
cmd_args=''
ip.replace('\n','')
cmd_args = 'sudo cinder-rootwrap /etc/cinder/rootwrap.conf ' + fsc_cli + ' '+ '--ip' + ' '+ ip.replace('\n','') + ' '+ '--manage_ip' + ' '+ manage_ip.replace('\n','') + ' '+ '--port' + ' '+ fsc_port + ' '+ cmd
LOG.debug(_("DSWARE cmd_args is %s") %cmd_args)
exec_result=self.execute(cmd_args)
if exec_result:
for line in exec_result:
if re.search('^result=', line):
result=line
if re.search('^result=0', line):
return line
elif re.search('^result=50150007', line):
return 'result=0'
elif re.search('^result=50150008', line):
return 'result=0'
elif re.search('^result=50', line):
return line
return result
def register_opts(conf):
"""Registration of options for this driver."""
#NOTE(ewindisch): ZMQ_CTX and matchmaker
# are initialized here as this is as good
# an initialization method as any.
# We memoize through these globals
global ZMQ_CTX
global matchmaker
global CONF
if not CONF:
conf.register_opts(zmq_opts)
CONF = conf
# Don't re-set, if this method is called twice.
if not ZMQ_CTX:
ZMQ_CTX = zmq.Context(conf.rpc_zmq_contexts)
if not matchmaker:
# rpc_zmq_matchmaker should be set to a 'module.Class'
mm_path = conf.rpc_zmq_matchmaker.split('.')
mm_module = '.'.join(mm_path[:-1])
mm_class = mm_path[-1]
# Only initialize a class.
if mm_path[-1][0] not in string.ascii_uppercase:
LOG.error(_("Matchmaker could not be loaded.\n"
"rpc_zmq_matchmaker is not a class."))
raise RPCException(_("Error loading Matchmaker."))
mm_impl = importutils.import_module(mm_module)
mm_constructor = getattr(mm_impl, mm_class)
matchmaker = mm_constructor()
def register(self, proxy, in_addr, zmq_type_in, out_addr=None,
zmq_type_out=None, in_bind=True, out_bind=True,
subscribe=None):
LOG.info(_("Registering reactor"))
if zmq_type_in not in (zmq.PULL, zmq.SUB):
raise RPCException("Bad input socktype")
# Items push in.
inq = ZmqSocket(in_addr, zmq_type_in, bind=in_bind,
subscribe=subscribe)
self.proxies[inq] = proxy
self.sockets.append(inq)
LOG.info(_("In reactor registered"))
if not out_addr:
return
if zmq_type_out not in (zmq.PUSH, zmq.PUB):
raise RPCException("Bad output socktype")
# Items push out.
outq = ZmqSocket(out_addr, zmq_type_out, bind=out_bind)
self.mapping[inq] = outq
self.mapping[outq] = inq
self.sockets.append(outq)
LOG.info(_("Out reactor registered"))
def do_setup(self, context):
"""Any initialization the volume driver does while starting."""
super(GlusterfsDriver, self).do_setup(context)
self._nova = compute.API()
config = self.configuration.glusterfs_shares_config
if not config:
msg = (_("There's no Gluster config file configured (%s)") %
'glusterfs_shares_config')
LOG.warn(msg)
raise exception.GlusterfsException(msg)
if not os.path.exists(config):
msg = (_("Gluster config file at %(config)s doesn't exist") %
{'config': config})
LOG.warn(msg)
raise exception.GlusterfsException(msg)
self.shares = {}
try:
self._execute('mount.glusterfs', check_exit_code=False)
except OSError as exc:
if exc.errno == errno.ENOENT:
raise exception.GlusterfsException(
_('mount.glusterfs is not installed'))
else:
raise
self._refresh_mounts()
def __init__(self, addr, zmq_type, bind=True, subscribe=None):
self.sock = ZMQ_CTX.socket(zmq_type)
self.addr = addr
self.type = zmq_type
self.subscriptions = []
# Support failures on sending/receiving on wrong socket type.
self.can_recv = zmq_type in (zmq.PULL, zmq.SUB)
self.can_send = zmq_type in (zmq.PUSH, zmq.PUB)
self.can_sub = zmq_type in (zmq.SUB, )
# Support list, str, & None for subscribe arg (cast to list)
do_sub = {
list: subscribe,
str: [subscribe],
type(None): []
}[type(subscribe)]
for f in do_sub:
self.subscribe(f)
str_data = {'addr': addr, 'type': self.socket_s(),
'subscribe': subscribe, 'bind': bind}
LOG.debug(_("Connecting to %(addr)s with %(type)s"), str_data)
LOG.debug(_("-> Subscribed to %(subscribe)s"), str_data)
LOG.debug(_("-> bind: %(bind)s"), str_data)
try:
if bind:
self.sock.bind(addr)
else:
self.sock.connect(addr)
except Exception:
raise RPCException(_("Could not open socket."))
def delete_snapshot(self, snapshot):
"""Deletes a snapshot."""
ret, output = self.dpl.delete_vdev_snapshot(
self._conver_uuid2hex(snapshot['volume_id']),
self._conver_uuid2hex(snapshot['id']))
if ret == errno.EAGAIN:
ret, event_uuid = self._get_event_uuid(output)
if ret == 0:
status = self._wait_event(self.dpl.get_vdev_status,
snapshot['volume_id'],
event_uuid)
if status['state'] != 'available':
msg = _('Flexvisor failed to delete snapshot %(id)s: '
'%(status)s.') % {'id': snapshot['id'],
'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
else:
msg = _('Flexvisor failed to delete snapshot (failed to '
'get event) %(id)s.') % {'id': snapshot['id']}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
elif ret == errno.ENAVAIL:
msg = _('Flexvisor snapshot %(id)s not existed.') % \
{'id': snapshot['id']}
LOG.info(msg)
elif ret != 0:
msg = _('Flexvisor failed to delete snapshot %(id)s: '
'%(status)s.') % {'id': snapshot['id'], 'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
else:
msg = _('Flexvisor succeed to delete '
'snapshot %(id)s.') % {'id': snapshot['id']}
LOG.info(msg)
def create_cloned_volume(self, volume, src_vref):
"""Creates a clone of the specified volume."""
LOG.info(_('Cloning volume %(src)s to volume %(dst)s') %
{'src': src_vref['id'],
'dst': volume['id']})
if src_vref['status'] != 'available':
msg = _("Volume status must be 'available'.")
raise exception.InvalidVolume(msg)
volume_name = CONF.volume_name_template % volume['id']
volume_info = {'provider_location': src_vref['provider_location'],
'size': src_vref['size'],
'id': volume['id'],
'name': volume_name,
'status': src_vref['status']}
temp_snapshot = {'volume_name': volume_name,
'size': src_vref['size'],
'volume_size': src_vref['size'],
'name': 'clone-snap-%s' % src_vref['id'],
'volume_id': src_vref['id'],
'id': 'tmp-snap-%s' % src_vref['id'],
'volume': src_vref}
self._create_snapshot(temp_snapshot)
try:
self._copy_volume_from_snapshot(temp_snapshot,
volume_info,
src_vref['size'])
finally:
self._delete_snapshot(temp_snapshot)
return {'provider_location': src_vref['provider_location']}
def _multi_send(method, context, topic, msg, timeout=None):
"""
Wraps the sending of messages,
dispatches to the matchmaker and sends
message to all relevant hosts.
"""
conf = CONF
LOG.debug(_("%(msg)s") % {'msg': ' '.join(map(pformat, (topic, msg)))})
queues = matchmaker.queues(topic)
LOG.debug(_("Sending message(s) to: %s"), queues)
# Don't stack if we have no matchmaker results
if len(queues) == 0:
LOG.warn(_("No matchmaker results. Not casting."))
# While not strictly a timeout, callers know how to handle
# this exception and a timeout isn't too big a lie.
raise rpc_common.Timeout, "No match from matchmaker."
# This supports brokerless fanout (addresses > 1)
for queue in queues:
(_topic, ip_addr) = queue
_addr = "tcp://%s:%s" % (ip_addr, conf.rpc_zmq_port)
if method.__name__ == '_cast':
eventlet.spawn_n(method, _addr, context,
_topic, _topic, msg, timeout)
return
return method(_addr, context, _topic, _topic, msg, timeout)
def create_snapshot(self, snapshot):
"""Creates a snapshot."""
ret, output = self.dpl.create_vdev_snapshot(
self._conver_uuid2hex(snapshot['volume_id']),
self._conver_uuid2hex(snapshot['id']),
snapshot.get('display_name', ''),
snapshot.get('display_description', ''))
if ret == errno.EAGAIN:
ret, event_uuid = self._get_event_uuid(output)
if ret == 0:
status = self._wait_event(self.dpl.get_vdev_status,
snapshot['volume_id'],
event_uuid)
if status['state'] != 'available':
msg = _('Flexvisor failed to create snapshot for volume '
'%(id)s: %(status)s.') % \
{'id': snapshot['volume_id'], 'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
else:
msg = _('Flexvisor failed to create snapshot for volume '
'(failed to get event) %(id)s.') % \
{'id': snapshot['volume_id']}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
elif ret != 0:
msg = _('Flexvisor failed to create snapshot for volume %(id)s: '
'%(status)s.') % {'id': snapshot['volume_id'],
'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
def terminate_connection(self, volume, connector, **kwargs):
"""Disallow connection from connector."""
ret, output = self.dpl.unassign_vdev(
self._conver_uuid2hex(volume['id']),
connector['initiator'])
if ret == errno.EAGAIN:
ret, event_uuid = self._get_event_uuid(output)
if ret == 0:
status = self._wait_event(
self.dpl.get_vdev_status, volume['id'], event_uuid)
if status['state'] == 'error':
ret = errno.EFAULT
msg = _('Flexvisor failed to unassign volume %(id)s:'
' %(status)s.') % {'id': volume['id'],
'status': status}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
else:
msg = _('Flexvisor failed to unassign volume (get event) '
'%(id)s.') % {'id': volume['id']}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
elif ret == errno.ENODATA:
msg = _('Flexvisor already unassigned volume '
'%(id)s.') % {'id': volume['id']}
LOG.info(msg)
elif ret != 0:
msg = _('Flexvisor failed to unassign volume:%(id)s:'
'%(status)s.') % {'id': volume['id'], 'status': ret}
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
class NoFibreChannelVolumeDeviceFound(BrickException):
message = _("Unable to find a Fibre Channel volume device.")
class InvalidSortKey(Exception):
message = _("Sort key supplied was not valid.")
def _get_default_deleted_value(table):
if isinstance(table.c.id.type, Integer):
return 0
if isinstance(table.c.id.type, String):
return ""
raise ColumnError(_("Unsupported id columns type"))
def factory(protocol,
root_helper,
driver=None,
execute=putils.execute,
use_multipath=False,
device_scan_attempts=DEVICE_SCAN_ATTEMPTS_DEFAULT,
*args,
**kwargs):
"""Build a Connector object based upon protocol."""
LOG.debug("Factory for %s" % protocol)
protocol = protocol.upper()
if protocol == "ISCSI":
return ISCSIConnector(root_helper=root_helper,
driver=driver,
execute=execute,
use_multipath=use_multipath,
device_scan_attempts=device_scan_attempts,
*args,
**kwargs)
elif protocol == "ISER":
return ISERConnector(root_helper=root_helper,
driver=driver,
execute=execute,
use_multipath=use_multipath,
device_scan_attempts=device_scan_attempts,
*args,
**kwargs)
elif protocol == "FIBRE_CHANNEL":
return FibreChannelConnector(
root_helper=root_helper,
driver=driver,
execute=execute,
use_multipath=use_multipath,
device_scan_attempts=device_scan_attempts,
*args,
**kwargs)
elif protocol == "AOE":
return AoEConnector(root_helper=root_helper,
driver=driver,
execute=execute,
device_scan_attempts=device_scan_attempts,
*args,
**kwargs)
elif protocol == "NFS" or protocol == "GLUSTERFS":
return RemoteFsConnector(mount_type=protocol.lower(),
root_helper=root_helper,
driver=driver,
execute=execute,
device_scan_attempts=device_scan_attempts,
*args,
**kwargs)
elif protocol == "LOCAL":
return LocalConnector(root_helper=root_helper,
driver=driver,
execute=execute,
device_scan_attempts=device_scan_attempts,
*args,
**kwargs)
else:
msg = (_("Invalid InitiatorConnector protocol "
"specified %(protocol)s") % dict(protocol=protocol))
raise ValueError(msg)
def connect_volume(self, connection_properties):
"""Attach the volume to instance_name.
connection_properties for Fibre Channel must include:
target_portal - ip and optional port
target_iqn - iSCSI Qualified Name
target_lun - LUN id of the volume
"""
LOG.debug("execute = %s" % self._execute)
device_info = {'type': 'block'}
ports = connection_properties['target_wwn']
wwns = []
# we support a list of wwns or a single wwn
if isinstance(ports, list):
for wwn in ports:
wwns.append(str(wwn))
elif isinstance(ports, basestring):
wwns.append(str(ports))
# We need to look for wwns on every hba
# because we don't know ahead of time
# where they will show up.
hbas = self._linuxfc.get_fc_hbas_info()
host_devices = []
for hba in hbas:
pci_num = self._get_pci_num(hba)
if pci_num is not None:
for wwn in wwns:
target_wwn = "0x%s" % wwn.lower()
host_device = (
"/dev/disk/by-path/pci-%s-fc-%s-lun-%s" %
(pci_num, target_wwn,
connection_properties.get('target_lun', 0)))
host_devices.append(host_device)
if len(host_devices) == 0:
# this is empty because we don't have any FC HBAs
msg = _("We are unable to locate any Fibre Channel devices")
LOG.warn(msg)
raise exception.NoFibreChannelHostsFound()
# The /dev/disk/by-path/... node is not always present immediately
# We only need to find the first device. Once we see the first device
# multipath will have any others.
def _wait_for_device_discovery(host_devices):
tries = self.tries
for device in host_devices:
LOG.debug(_("Looking for Fibre Channel dev %(device)s"),
{'device': device})
if os.path.exists(device):
self.host_device = device
# get the /dev/sdX device. This is used
# to find the multipath device.
self.device_name = os.path.realpath(device)
raise loopingcall.LoopingCallDone()
if self.tries >= self.device_scan_attempts:
msg = _("Fibre Channel volume device not found.")
LOG.error(msg)
raise exception.NoFibreChannelVolumeDeviceFound()
LOG.warn(
_("Fibre volume not yet found. "
"Will rescan & retry. Try number: %(tries)s"),
{'tries': tries})
self._linuxfc.rescan_hosts(hbas)
self.tries = self.tries + 1
self.host_device = None
self.device_name = None
self.tries = 0
timer = loopingcall.FixedIntervalLoopingCall(
_wait_for_device_discovery, host_devices)
timer.start(interval=2).wait()
tries = self.tries
if self.host_device is not None and self.device_name is not None:
LOG.debug(
_("Found Fibre Channel volume %(name)s "
"(after %(tries)s rescans)"), {
'name': self.device_name,
'tries': tries
})
# see if the new drive is part of a multipath
# device. If so, we'll use the multipath device.
if self.use_multipath:
mdev_info = self._linuxscsi.find_multipath_device(self.device_name)
if mdev_info is not None:
LOG.debug(
_("Multipath device discovered %(device)s") %
{'device': mdev_info['device']})
device_path = mdev_info['device']
devices = mdev_info['devices']
device_info['multipath_id'] = mdev_info['id']
else:
# we didn't find a multipath device.
# so we assume the kernel only sees 1 device
device_path = self.host_device
dev_info = self._linuxscsi.get_device_info(self.device_name)
devices = [dev_info]
else:
device_path = self.host_device
dev_info = self._linuxscsi.get_device_info(self.device_name)
devices = [dev_info]
device_info['path'] = device_path
device_info['devices'] = devices
return device_info
def connect_volume(self, connection_properties):
"""Attach the volume to instance_name.
connection_properties for iSCSI must include:
target_portal - ip and optional port
target_iqn - iSCSI Qualified Name
target_lun - LUN id of the volume
"""
device_info = {'type': 'block'}
if self.use_multipath:
#multipath installed, discovering other targets if available
target_portal = connection_properties['target_portal']
out = self._run_iscsiadm_bare(['-m',
'discovery',
'-t',
'sendtargets',
'-p',
target_portal],
check_exit_code=[0, 255])[0] \
or ""
for ip, iqn in self._get_target_portals_from_iscsiadm_output(out):
props = connection_properties.copy()
props['target_portal'] = ip
props['target_iqn'] = iqn
self._connect_to_iscsi_portal(props)
self._rescan_iscsi()
else:
self._connect_to_iscsi_portal(connection_properties)
host_device = self._get_device_path(connection_properties)
# The /dev/disk/by-path/... node is not always present immediately
# TODO(justinsb): This retry-with-delay is a pattern, move to utils?
tries = 0
while not os.path.exists(host_device):
if tries >= self.device_scan_attempts:
raise exception.VolumeDeviceNotFound(device=host_device)
LOG.warn(
_("ISCSI volume not yet found at: %(host_device)s. "
"Will rescan & retry. Try number: %(tries)s"), {
'host_device': host_device,
'tries': tries
})
# The rescan isn't documented as being necessary(?), but it helps
self._run_iscsiadm(connection_properties, ("--rescan", ))
tries = tries + 1
if not os.path.exists(host_device):
time.sleep(tries**2)
if tries != 0:
LOG.debug(
_("Found iSCSI node %(host_device)s "
"(after %(tries)s rescans)"), {
'host_device': host_device,
'tries': tries
})
if self.use_multipath:
#we use the multipath device instead of the single path device
self._rescan_multipath()
multipath_device = self._get_multipath_device_name(host_device)
if multipath_device is not None:
host_device = multipath_device
device_info['path'] = host_device
return device_info
class VolumeDeviceNotFound(BrickException):
message = _("Volume device not found at %(device)s.")
class InvalidParameterValue(Invalid):
message = _("%(err)s")
class NotFound(BrickException):
message = _("Resource could not be found.")
code = 404
safe = True
class NoFibreChannelHostsFound(BrickException):
message = _("We are unable to locate any Fibre Channel devices.")
class ISCSITargetRemoveFailed(BrickException):
message = _("Failed to remove iscsi target for volume %(volume_id)s.")
class Invalid(BrickException):
message = _("Unacceptable parameters.")
code = 400
class VolumeGroupCreationFailed(BrickException):
message = _('Failed to create Volume Group: %(vg_name)s')
class ISCSITargetAttachFailed(BrickException):
message = _("Failed to attach iSCSI target for volume %(volume_id)s.")
def _verify_rtstool(self):
try:
self._execute('rtstool', 'verify')
except (OSError, putils.ProcessExecutionError):
LOG.error(_('rtstool is not installed correctly'))
raise
class ISCSITargetCreateFailed(BrickException):
message = _("Failed to create iscsi target for volume %(volume_id)s.")
def create(self):
LOG.debug(_('Pool creating new connection'))
return self.connection_cls(self.conf)
class VolumeGroupNotFound(BrickException):
message = _('Unable to find Volume Group: %(vg_name)s')
class InvalidPeriodicTaskArg(Exception):
message = _("Unexpected argument for periodic task creation: %(arg)s.")
def create_iscsi_target(self,
name,
tid,
lun,
path,
chap_auth=None,
**kwargs):
# Note(jdg) tid and lun aren't used by TgtAdm but remain for
# compatibility
fileutils.ensure_tree(self.volumes_dir)
vol_id = name.split(':')[1]
if chap_auth is None:
volume_conf = """
<target %s>
backing-store %s
</target>
""" % (name, path)
else:
volume_conf = """
<target %s>
backing-store %s
%s
</target>
""" % (name, path, chap_auth)
LOG.info(_('Creating iscsi_target for: %s') % vol_id)
volumes_dir = self.volumes_dir
volume_path = os.path.join(volumes_dir, vol_id)
f = open(volume_path, 'w+')
f.write(volume_conf)
f.close()
old_persist_file = None
old_name = kwargs.get('old_name', None)
if old_name is not None:
old_persist_file = os.path.join(volumes_dir, old_name)
try:
(out, err) = self._execute('tgt-admin',
'--update',
name,
run_as_root=True)
LOG.debug("StdOut from tgt-admin --update: %s" % out)
LOG.debug("StdErr from tgt-admin --update: %s" % err)
# Grab targets list for debug
# Consider adding a check for lun 0 and 1 for tgtadm
# before considering this as valid
(out, err) = self._execute('tgtadm',
'--lld',
'iscsi',
'--op',
'show',
'--mode',
'target',
run_as_root=True)
LOG.debug("Targets after update: %s" % out)
except putils.ProcessExecutionError as e:
LOG.error(
_("Failed to create iscsi target for volume "
"id:%(vol_id)s: %(e)s") % {
'vol_id': vol_id,
'e': str(e)
})
#Don't forget to remove the persistent file we created
os.unlink(volume_path)
raise exception.ISCSITargetCreateFailed(volume_id=vol_id)
iqn = '%s%s' % (self.iscsi_target_prefix, vol_id)
tid = self._get_target(iqn)
if tid is None:
LOG.error(
_("Failed to create iscsi target for volume "
"id:%(vol_id)s. Please ensure your tgtd config file "
"contains 'include %(volumes_dir)s/*'") % {
'vol_id': vol_id,
'volumes_dir': volumes_dir,
})
raise exception.NotFound()
# NOTE(jdg): Sometimes we have some issues with the backing lun
# not being created, believe this is due to a device busy
# or something related, so we're going to add some code
# here that verifies the backing lun (lun 1) was created
# and we'll try and recreate it if it's not there
if not self._verify_backing_lun(iqn, tid):
try:
self._recreate_backing_lun(iqn, tid, name, path)
except putils.ProcessExecutionError:
os.unlink(volume_path)
raise exception.ISCSITargetCreateFailed(volume_id=vol_id)
# Finally check once more and if no go, fail and punt
if not self._verify_backing_lun(iqn, tid):
os.unlink(volume_path)
raise exception.ISCSITargetCreateFailed(volume_id=vol_id)
if old_persist_file is not None and os.path.exists(old_persist_file):
os.unlink(old_persist_file)
return tid
def __init__(self):
# Array of tuples. Index [2] toggles negation, [3] is last-if-true
self.bindings = []
self.no_heartbeat_msg = _('Matchmaker does not implement '
'registration or heartbeat.')
def _add_unique_id(msg):
"""Add unique_id for checking duplicate messages."""
unique_id = uuid.uuid4().hex
msg.update({UNIQUE_ID: unique_id})
LOG.debug(_('UNIQUE_ID is %s.') % (unique_id))
class DBInvalidUnicodeParameter(Exception):
message = _("Invalid Parameter: "
"Unicode is not supported by the current database.")
class DeprecatedConfig(Exception):
message = _("Fatal call to deprecated config: %(msg)s")
def __init__(self, msg):
super(Exception, self).__init__(self.message % dict(msg=msg))
def _consume(sock):
LOG.info(_("Consuming socket"))
while True:
self.consume(sock)
class MatchMakerException(Exception):
"""Signified a match could not be found."""
message = _("Match not found by MatchMaker.")
def recv(self):
if not self.can_recv:
raise RPCException(_("You cannot recv on this socket."))
return self.sock.recv_multipart()
def _deserialize(data):
"""
Deserialization wrapper
"""
LOG.debug(_("Deserializing: %s"), data)
return jsonutils.loads(data)
def __init__(self, rule):
msg = _("Policy doesn't allow %s to be performed.") % rule
super(PolicyNotAuthorized, self).__init__(msg)
def send(self, data):
if not self.can_send:
raise RPCException(_("You cannot send on this socket."))
self.sock.send_multipart(data)
