def __init__(self, cluster_id, rdx_ip, password, chap_user, chap_password):
logger.info("ReduxioStorageDriverAPI Initializing")
self._cluster_id = cluster_id
self._rdx_ip = rdx_ip
self._password = password
self._chap_user = chap_user
self._chap_password = chap_password
logger.debug("Initializing {}; {};".format(self._cluster_id, self._rdx_ip))
self._rdxapi = ReduxioAPI(host=rdx_ip, user="******", password=password)
self._rdxhelper = RdxHelper()
self.initiator_name = get_initiator_name()
logger.debug("Initiator name is {} .".format(self.initiator_name))
def detach_volume(self, blockdevice_id):
"""Detach ``blockdevice_id`` from whatever host it is attached to.
:param unicode blockdevice_id: The unique identifier for the block
device being detached.
:raises UnknownVolume: If the supplied ``blockdevice_id`` does not
exist.
:raises UnattachedVolume: If the supplied ``blockdevice_id`` is
not attached to anything.
:returns: ``None``
"""
LOG.info("Detaching %s", blockdevice_id)
with self._client.open_connection() as api:
# Check that we have that volume
scvolume = api.find_volume(blockdevice_id)
if not scvolume:
raise blockdevice.UnknownVolume(blockdevice_id)
# First check if we are mapped
mappings = api.find_mapping_profiles(scvolume)
if not mappings:
raise blockdevice.UnattachedVolume(blockdevice_id)
device_id = scvolume["deviceId"]
paths = iscsi_utils.find_paths(device_id)
paths.reverse()
for path in paths:
iscsi_utils.remove_device(path)
# Make sure we have a server defined for this host
iqn = iscsi_utils.get_initiator_name()
host = api.find_server(iqn)
LOG.info("Search for server returned: %s", host)
if not host:
# Try to create a new host
host = api.create_server(self.compute_instance_id(), iqn)
LOG.info("Created server %s", host)
# Make sure we were able to find something
if not host:
raise BlockDriverAPIException("Unable to locate server.")
api.unmap_volume(scvolume, host)
self._do_rescan("detach")
def detach_volume(self, blockdevice_id):
"""Detach ``blockdevice_id`` from whatever host it is attached to.
:param unicode blockdevice_id: The unique identifier for the block
device being detached.
:raises UnknownVolume: If the supplied ``blockdevice_id`` does not
exist.
:raises UnattachedVolume: If the supplied ``blockdevice_id`` is
not attached to anything.
:returns: ``None``
"""
LOG.info('Detaching %s', blockdevice_id)
with self._client.open_connection() as api:
# Check that we have that volume
scvolume = api.find_volume(blockdevice_id)
if not scvolume:
raise blockdevice.UnknownVolume(blockdevice_id)
# First check if we are mapped
mappings = api.find_mapping_profiles(scvolume)
if not mappings:
raise blockdevice.UnattachedVolume(blockdevice_id)
device_id = scvolume['deviceId']
paths = iscsi_utils.find_paths(device_id)
paths.reverse()
for path in paths:
iscsi_utils.remove_device(path)
# Make sure we have a server defined for this host
iqn = iscsi_utils.get_initiator_name()
host = api.find_server(iqn)
LOG.info("Search for server returned: %s", host)
if not host:
# Try to create a new host
host = api.create_server(self.compute_instance_id(), iqn)
LOG.info("Created server %s", host)
# Make sure we were able to find something
if not host:
raise BlockDriverAPIException('Unable to locate server.')
api.unmap_volume(scvolume, host)
self._do_rescan('detach')
rdx_password = kwargs[u'password']
chap_password = None
chap_user = None
if Validations()._is_chap_enabled(args=kwargs):
chap_user = kwargs[u'chap_user']
chap_password = kwargs[u'chap_password']
return reduxio_init_from_configuration(cluster_id=cluster_id,
rdx_ip=rdx_ip,
password=rdx_password,
chap_user=chap_user,
chap_password=chap_password)
try:
get_initiator_name()
except:
logger.error(
'Unable to get initiator-name, please ensure the relevant package is installed.'
)
raise Exception('Unable to get initiator-name.')
try:
is_multipath_tools_installed()
except:
logger.error(
'Error running multipath, please ensure the relevant package is installed.'
)
raise Exception('Error running multipath.')
try:
def attach_volume(self, blockdevice_id, attach_to):
"""Attach an existing volume to an initiator.
:param blockdevice_id: The unique identifier for the volume.
:param attach_to: An identifier like the one returned by the
``compute_instance_id`` method indicating the node to which to
attach the volume.
:raises UnknownVolume: If the supplied ``blockdevice_id`` does not
exist.
:returns: A ``BlockDeviceVolume`` with a ``attached_to`` attribute set
to ``attach_to``.
"""
LOG.info("Attaching %s to %s", blockdevice_id, attach_to)
# Functional tests expect a failure if it's already
# attached, even if we're being asked to attach to
# the same host.
# not_local = attach_to != self.compute_instance_id()
not_local = True
with self._client.open_connection() as api:
# Check that we have that volume
scvolume = api.find_volume(blockdevice_id)
if not scvolume:
raise blockdevice.UnknownVolume(blockdevice_id)
# Make sure we have a server defined for this host
iqn = iscsi_utils.get_initiator_name()
host = api.find_server(iqn)
LOG.info("Search for server returned: %s", host)
if not host:
# Try to create a new host
host = api.create_server(attach_to, iqn)
LOG.info("Created server %s", host)
# Make sure the server is logged in to the array
ports = api.get_iscsi_ports()
for port in ports:
iscsi_utils.iscsi_login(port[0], port[1])
# Make sure we were able to find something
if not host:
raise BlockDriverAPIException()
# First check if we are already mapped
mappings = api.find_mapping_profiles(scvolume)
if mappings:
# See if it is to this server
if not_local:
raise blockdevice.AlreadyAttachedVolume(blockdevice_id)
for mapping in mappings:
if mapping["server"]["instanceName"] != host["instanceName"]:
raise blockdevice.AlreadyAttachedVolume(blockdevice_id)
mapping = api.map_volume(scvolume, host)
if not mapping:
raise BlockDriverAPIException("Unable to map volume to server.")
self._do_rescan("attach")
return self._to_blockdevicevolume(scvolume, attach_to)
def attach_volume(self, blockdevice_id, attach_to):
"""Attach an existing volume to an initiator.
:param blockdevice_id: The unique identifier for the volume.
:param attach_to: An identifier like the one returned by the
``compute_instance_id`` method indicating the node to which to
attach the volume.
:raises UnknownVolume: If the supplied ``blockdevice_id`` does not
exist.
:returns: A ``BlockDeviceVolume`` with a ``attached_to`` attribute set
to ``attach_to``.
"""
LOG.info('Attaching %s to %s', blockdevice_id, attach_to)
# Functional tests expect a failure if it's already
# attached, even if we're being asked to attach to
# the same host.
# not_local = attach_to != self.compute_instance_id()
not_local = True
with self._client.open_connection() as api:
# Check that we have that volume
scvolume = api.find_volume(blockdevice_id)
if not scvolume:
raise blockdevice.UnknownVolume(blockdevice_id)
# Make sure we have a server defined for this host
iqn = iscsi_utils.get_initiator_name()
host = api.find_server(iqn)
LOG.info("Search for server returned: %s", host)
if not host:
# Try to create a new host
host = api.create_server(attach_to, iqn)
LOG.info("Created server %s", host)
# Make sure the server is logged in to the array
ports = api.get_iscsi_ports()
for port in ports:
iscsi_utils.iscsi_login(port[0], port[1])
# Make sure we were able to find something
if not host:
raise BlockDriverAPIException()
# First check if we are already mapped
mappings = api.find_mapping_profiles(scvolume)
if mappings:
# See if it is to this server
if not_local:
raise blockdevice.AlreadyAttachedVolume(blockdevice_id)
for mapping in mappings:
if (mapping['server']['instanceName'] !=
host['instanceName']):
raise blockdevice.AlreadyAttachedVolume(blockdevice_id)
mapping = api.map_volume(scvolume, host)
if not mapping:
raise BlockDriverAPIException(
'Unable to map volume to server.')
self._do_rescan('attach')
return self._to_blockdevicevolume(scvolume, attach_to)
