def get_iscsi_params(self, xml_file_path, connector):
"""Get target iSCSI params, including iqn, IP."""
initiator = connector['initiator']
iscsi_conf = huawei_utils.get_iscsi_conf(xml_file_path)
target_ip = None
portgroup = None
portgroup_id = None
for ini in iscsi_conf['Initiator']:
if ini['Name'] == initiator:
for key in ini:
if key == 'TargetPortGroup':
portgroup = ini['TargetPortGroup']
elif key == 'TargetIP':
target_ip = ini['TargetIP']
if portgroup:
portgroup_id = self.find_tgt_port_group(portgroup)
target_ip = self._get_tgt_ip_from_portgroup(portgroup_id)
# If not specify target IP for some initiators, use default IP.
if not target_ip:
if iscsi_conf['DefaultTargetIP']:
target_ip = iscsi_conf['DefaultTargetIP']
else:
msg = (_(
'get_iscsi_params: Failed to get target IP '
'for initiator %(ini)s, please check config file.')
% {'ini': initiator})
LOG.error(msg)
raise exception.InvalidInput(reason=msg)
LOG.info(_LI('Get the default ip: %s.'), target_ip)
# If didn't get target IP for rest, Automated assembly target ip.
target_iqn = self._get_tgt_iqn_from_rest(target_ip)
if not target_iqn:
target_iqn = self._get_tgt_iqn(target_ip)
return (target_iqn, target_ip, portgroup_id)
def terminate_connection(self, volume, connector, **kwargs):
"""Delete map between a volume and a host."""
initiator_name = connector['initiator']
volume_name = huawei_utils.encode_name(volume['id'])
lun_id = volume.get('provider_location')
host_name = connector['host']
lungroup_id = None
LOG.info(
_LI('terminate_connection: volume name: %(volume)s, '
'initiator name: %(ini)s, '
'lun_id: %(lunid)s.'),
{
'volume': volume_name,
'ini': initiator_name,
'lunid': lun_id
},
)
iscsi_conf = huawei_utils.get_iscsi_conf(self.xml_file_path)
portgroup = None
portgroup_id = None
view_id = None
left_lunnum = -1
for ini in iscsi_conf['Initiator']:
if ini['Name'] == initiator_name:
for key in ini:
if key == 'TargetPortGroup':
portgroup = ini['TargetPortGroup']
break
if portgroup:
portgroup_id = self.restclient.find_tgt_port_group(portgroup)
if host_name and (len(host_name) > constants.MAX_HOSTNAME_LENGTH):
host_name = six.text_type(hash(host_name))
host_id = self.restclient.find_host(host_name)
if host_id:
mapping_view_name = constants.MAPPING_VIEW_PREFIX + host_id
view_id = self.restclient.find_mapping_view(mapping_view_name)
if view_id:
lungroup_id = self.restclient.find_lungroup_from_map(view_id)
# Remove lun from lungroup.
if lun_id and self.restclient.check_lun_exist(lun_id):
if lungroup_id:
lungroup_ids = self.restclient.get_lungroupids_by_lunid(lun_id)
if lungroup_id in lungroup_ids:
self.restclient.remove_lun_from_lungroup(
lungroup_id, lun_id)
else:
LOG.warning(
_LW("Lun is not in lungroup. "
"Lun id: %(lun_id)s. "
"lungroup id: %(lungroup_id)s."), {
"lun_id": lun_id,
"lungroup_id": lungroup_id
})
else:
LOG.warning(_LW("Can't find lun on the array."))
# Remove portgroup from mapping view if no lun left in lungroup.
if lungroup_id:
left_lunnum = self.restclient.get_lunnum_from_lungroup(lungroup_id)
if portgroup_id and view_id and (int(left_lunnum) <= 0):
if self.restclient.is_portgroup_associated_to_view(
view_id, portgroup_id):
self.restclient.delete_portgroup_mapping_view(
view_id, portgroup_id)
if view_id and (int(left_lunnum) <= 0):
self.restclient.remove_chap(initiator_name)
if self.restclient.lungroup_associated(view_id, lungroup_id):
self.restclient.delete_lungroup_mapping_view(
view_id, lungroup_id)
self.restclient.delete_lungroup(lungroup_id)
if self.restclient.is_initiator_associated_to_host(initiator_name):
self.restclient.remove_iscsi_from_host(initiator_name)
hostgroup_name = constants.HOSTGROUP_PREFIX + host_id
hostgroup_id = self.restclient.find_hostgroup(hostgroup_name)
if hostgroup_id:
if self.restclient.hostgroup_associated(view_id, hostgroup_id):
self.restclient.delete_hostgoup_mapping_view(
view_id, hostgroup_id)
self.restclient.remove_host_from_hostgroup(
hostgroup_id, host_id)
self.restclient.delete_hostgroup(hostgroup_id)
self.restclient.remove_host(host_id)
self.restclient.delete_mapping_view(view_id)
def initialize_connection(self, volume, connector):
"""Map a volume to a host and return target iSCSI information."""
LOG.info(_LI('Enter initialize_connection.'))
initiator_name = connector['initiator']
volume_name = huawei_utils.encode_name(volume['id'])
LOG.info(
_LI('initiator name: %(initiator_name)s, '
'volume name: %(volume)s.'), {
'initiator_name': initiator_name,
'volume': volume_name
})
(iscsi_iqns, target_ips,
portgroup_id) = self.restclient.get_iscsi_params(
self.xml_file_path, connector)
LOG.info(
_LI('initialize_connection, iscsi_iqn: %(iscsi_iqn)s, '
'target_ip: %(target_ip)s, '
'portgroup_id: %(portgroup_id)s.'),
{
'iscsi_iqn': iscsi_iqns,
'target_ip': target_ips,
'portgroup_id': portgroup_id
},
)
# Create hostgroup if not exist.
host_name = connector['host']
host_name_before_hash = None
if host_name and (len(host_name) > constants.MAX_HOSTNAME_LENGTH):
host_name_before_hash = host_name
host_name = six.text_type(hash(host_name))
host_id = self.restclient.add_host_with_check(host_name,
host_name_before_hash)
# Add initiator to the host.
self.restclient.ensure_initiator_added(self.xml_file_path,
initiator_name, host_id)
hostgroup_id = self.restclient.add_host_into_hostgroup(host_id)
lun_id = self.restclient.get_lunid(volume, volume_name)
# Mapping lungroup and hostgroup to view.
self.restclient.do_mapping(lun_id, hostgroup_id, host_id, portgroup_id)
hostlun_id = self.restclient.find_host_lun_id(host_id, lun_id)
LOG.info(_LI("initialize_connection, host lun id is: %s."), hostlun_id)
iscsi_conf = huawei_utils.get_iscsi_conf(self.xml_file_path)
chapinfo = self.restclient.find_chap_info(iscsi_conf, initiator_name)
# Return iSCSI properties.
properties = {}
properties['target_discovered'] = False
properties['volume_id'] = volume['id']
multipath = connector.get('multipath', False)
hostlun_id = int(hostlun_id)
if not multipath:
properties['target_portal'] = ('%s:3260' % target_ips[0])
properties['target_iqn'] = iscsi_iqns[0]
properties['target_lun'] = hostlun_id
else:
properties['target_iqns'] = [iqn for iqn in iscsi_iqns]
properties['target_portals'] = [
'%s:3260' % ip for ip in target_ips
]
properties['target_luns'] = [hostlun_id] * len(target_ips)
# If use CHAP, return CHAP info.
if chapinfo:
chap_username, chap_password = chapinfo.split(';')
properties['auth_method'] = 'CHAP'
properties['auth_username'] = chap_username
properties['auth_password'] = chap_password
LOG.info(_LI("initialize_connection success. Return data: %s."),
properties)
return {'driver_volume_type': 'iscsi', 'data': properties}
def terminate_connection_iscsi(self, volume, connector):
"""Delete map between a volume and a host."""
initiator_name = connector['initiator']
volume_name = huawei_utils.encode_name(volume['id'])
lun_id = volume.get('provider_location', None)
host_name = connector['host']
LOG.info(_LI(
'terminate_connection_iscsi: volume name: %(volume)s, '
'initiator name: %(ini)s, '
'lun_id: %(lunid)s.'),
{'volume': volume_name,
'ini': initiator_name,
'lunid': lun_id},)
iscsi_conf = huawei_utils.get_iscsi_conf(self.xml_file_path)
portgroup = None
portgroup_id = None
left_lunnum = -1
for ini in iscsi_conf['Initiator']:
if ini['Name'] == initiator_name:
for key in ini:
if key == 'TargetPortGroup':
portgroup = ini['TargetPortGroup']
break
# Remove lun from lungroup.
if lun_id:
if self.restclient.check_lun_exist(lun_id):
# Get lungroup id by lun id.
lungroup_id = self.restclient.get_lungroupid_by_lunid(lun_id)
if lungroup_id:
self.restclient.remove_lun_from_lungroup(lungroup_id,
lun_id)
else:
LOG.warning(_LW("Can't find lun on the array."))
# Remove portgroup from mapping view if no lun left in lungroup.
if portgroup:
portgroup_id = self.restclient.find_tgt_port_group(portgroup)
host_id = self.restclient.find_host(host_name)
if host_id:
mapping_view_name = constants.MAPPING_VIEW_PREFIX + host_id
view_id = self.restclient.find_mapping_view(mapping_view_name)
if view_id:
lungroup_id = self.restclient.find_lungroup_from_map(view_id)
if lungroup_id:
left_lunnum = self.restclient.get_lunnum_from_lungroup(lungroup_id)
if portgroup_id and view_id and (int(left_lunnum) <= 0):
if self.restclient.is_portgroup_associated_to_view(view_id,
portgroup_id):
self.restclient.delete_portgroup_mapping_view(view_id,
portgroup_id)
if view_id and (int(left_lunnum) <= 0):
self.restclient.remove_chap(initiator_name)
if self.restclient.lungroup_associated(view_id, lungroup_id):
self.restclient.delete_lungroup_mapping_view(view_id,
lungroup_id)
self.restclient.delete_lungroup(lungroup_id)
if self.restclient.is_initiator_associated_to_host(initiator_name):
self.restclient.remove_iscsi_from_host(initiator_name)
hostgroup_name = constants.HOSTGROUP_PREFIX + host_id
hostgroup_id = self.restclient.find_hostgroup(hostgroup_name)
if hostgroup_id:
if self.restclient.hostgroup_associated(view_id, hostgroup_id):
self.restclient.delete_hostgoup_mapping_view(view_id,
hostgroup_id)
self.restclient.remove_host_from_hostgroup(hostgroup_id,
host_id)
self.restclient.delete_hostgroup(hostgroup_id)
self.restclient.remove_host(host_id)
self.restclient.delete_mapping_view(view_id)
def initialize_connection_iscsi(self, volume, connector):
"""Map a volume to a host and return target iSCSI information."""
LOG.info(_LI('Enter initialize_connection_iscsi.'))
initiator_name = connector['initiator']
volume_name = huawei_utils.encode_name(volume['id'])
LOG.info(_LI(
'initiator name: %(initiator_name)s, '
'volume name: %(volume)s.'),
{'initiator_name': initiator_name,
'volume': volume_name})
(iscsi_iqns,
target_ips,
portgroup_id) = self.restclient.get_iscsi_params(self.xml_file_path,
connector)
LOG.info(_LI('initialize_connection_iscsi, iscsi_iqn: %(iscsi_iqn)s, '
'target_ip: %(target_ip)s, '
'portgroup_id: %(portgroup_id)s.'),
{'iscsi_iqn': iscsi_iqns,
'target_ip': target_ips,
'portgroup_id': portgroup_id},)
# Create hostgroup if not exist.
host_name = connector['host']
host_name_before_hash = None
if host_name and (len(host_name) > constants.MAX_HOSTNAME_LENGTH):
host_name_before_hash = host_name
host_name = six.text_type(hash(host_name))
host_id = self.restclient.add_host_with_check(host_name,
host_name_before_hash)
# Add initiator to the host.
self.restclient.ensure_initiator_added(self.xml_file_path,
initiator_name,
host_id)
hostgroup_id = self.restclient.add_host_into_hostgroup(host_id)
# Mapping lungroup and hostgroup to view.
lun_id = self.restclient.mapping_hostgroup_and_lungroup(volume_name,
hostgroup_id,
host_id,
portgroup_id)
hostlun_id = self.restclient.find_host_lun_id(host_id, lun_id)
LOG.info(_LI("initialize_connection_iscsi, host lun id is: %s."),
hostlun_id)
iscsi_conf = huawei_utils.get_iscsi_conf(self.xml_file_path)
chapinfo = self.restclient.find_chap_info(iscsi_conf,
initiator_name)
# Return iSCSI properties.
properties = {}
properties['target_discovered'] = False
properties['volume_id'] = volume['id']
multipath = connector.get('multipath', False)
hostlun_id = int(hostlun_id)
if not multipath:
properties['target_portal'] = ('%s:3260' % target_ips[0])
properties['target_iqn'] = iscsi_iqns[0]
properties['target_lun'] = hostlun_id
else:
properties['target_iqns'] = [iqn for iqn in iscsi_iqns]
properties['target_portals'] = [
'%s:3260' % ip for ip in target_ips]
properties['target_luns'] = [hostlun_id] * len(target_ips)
# If use CHAP, return CHAP info.
if chapinfo:
chap_username, chap_password = chapinfo.split(';')
properties['auth_method'] = 'CHAP'
properties['auth_username'] = chap_username
properties['auth_password'] = chap_password
LOG.info(_LI("initialize_connection_iscsi success. Return data: %s."),
properties)
return {'driver_volume_type': 'iscsi', 'data': properties}
def tset_get_iscsi_conf(self):
self.driver.restclient.login()
iscsiinfo = huawei_utils.get_iscsi_conf(self.xml_file_path)
self.assertEqual('iqn.1993-08.debian:01:ec2bff7ac3a3',
iscsiinfo['Initiator'])
def tset_get_iscsi_conf(self):
self.driver.restclient.login()
iscsiinfo = huawei_utils.get_iscsi_conf(self.xml_file_path)
self.assertEqual('iqn.1993-08.debian:01:ec2bff7ac3a3',
iscsiinfo['Initiator'])
def terminate_connection(self, volume, connector, **kwargs):
"""Delete map between a volume and a host."""
initiator_name = connector["initiator"]
volume_name = huawei_utils.encode_name(volume["id"])
lun_id = volume.get("provider_location", None)
host_name = connector["host"]
lungroup_id = None
LOG.info(
_LI("terminate_connection: volume name: %(volume)s, " "initiator name: %(ini)s, " "lun_id: %(lunid)s."),
{"volume": volume_name, "ini": initiator_name, "lunid": lun_id},
)
iscsi_conf = huawei_utils.get_iscsi_conf(self.xml_file_path)
portgroup = None
portgroup_id = None
view_id = None
left_lunnum = -1
for ini in iscsi_conf["Initiator"]:
if ini["Name"] == initiator_name:
for key in ini:
if key == "TargetPortGroup":
portgroup = ini["TargetPortGroup"]
break
if portgroup:
portgroup_id = self.restclient.find_tgt_port_group(portgroup)
if host_name and (len(host_name) > constants.MAX_HOSTNAME_LENGTH):
host_name = six.text_type(hash(host_name))
host_id = self.restclient.find_host(host_name)
if host_id:
mapping_view_name = constants.MAPPING_VIEW_PREFIX + host_id
view_id = self.restclient.find_mapping_view(mapping_view_name)
if view_id:
lungroup_id = self.restclient.find_lungroup_from_map(view_id)
# Remove lun from lungroup.
if lun_id and self.restclient.check_lun_exist(lun_id):
if lungroup_id:
lungroup_ids = self.restclient.get_lungroupids_by_lunid(lun_id)
if lungroup_id in lungroup_ids:
self.restclient.remove_lun_from_lungroup(lungroup_id, lun_id)
else:
LOG.warning(
_LW("Lun is not in lungroup. " "Lun id: %(lun_id)s. " "lungroup id: %(lungroup_id)s."),
{"lun_id": lun_id, "lungroup_id": lungroup_id},
)
else:
LOG.warning(_LW("Can't find lun on the array."))
# Remove portgroup from mapping view if no lun left in lungroup.
if lungroup_id:
left_lunnum = self.restclient.get_lunnum_from_lungroup(lungroup_id)
if portgroup_id and view_id and (int(left_lunnum) <= 0):
if self.restclient.is_portgroup_associated_to_view(view_id, portgroup_id):
self.restclient.delete_portgroup_mapping_view(view_id, portgroup_id)
if view_id and (int(left_lunnum) <= 0):
self.restclient.remove_chap(initiator_name)
if self.restclient.lungroup_associated(view_id, lungroup_id):
self.restclient.delete_lungroup_mapping_view(view_id, lungroup_id)
self.restclient.delete_lungroup(lungroup_id)
if self.restclient.is_initiator_associated_to_host(initiator_name):
self.restclient.remove_iscsi_from_host(initiator_name)
hostgroup_name = constants.HOSTGROUP_PREFIX + host_id
hostgroup_id = self.restclient.find_hostgroup(hostgroup_name)
if hostgroup_id:
if self.restclient.hostgroup_associated(view_id, hostgroup_id):
self.restclient.delete_hostgoup_mapping_view(view_id, hostgroup_id)
self.restclient.remove_host_from_hostgroup(hostgroup_id, host_id)
self.restclient.delete_hostgroup(hostgroup_id)
self.restclient.remove_host(host_id)
self.restclient.delete_mapping_view(view_id)
def initialize_connection(self, volume, connector):
"""Map a volume to a host and return target iSCSI information."""
LOG.info(_LI("Enter initialize_connection."))
initiator_name = connector["initiator"]
volume_name = huawei_utils.encode_name(volume["id"])
LOG.info(
_LI("initiator name: %(initiator_name)s, " "volume name: %(volume)s."),
{"initiator_name": initiator_name, "volume": volume_name},
)
(iscsi_iqns, target_ips, portgroup_id) = self.restclient.get_iscsi_params(self.xml_file_path, connector)
LOG.info(
_LI(
"initialize_connection, iscsi_iqn: %(iscsi_iqn)s, "
"target_ip: %(target_ip)s, "
"portgroup_id: %(portgroup_id)s."
),
{"iscsi_iqn": iscsi_iqns, "target_ip": target_ips, "portgroup_id": portgroup_id},
)
# Create hostgroup if not exist.
host_name = connector["host"]
host_name_before_hash = None
if host_name and (len(host_name) > constants.MAX_HOSTNAME_LENGTH):
host_name_before_hash = host_name
host_name = six.text_type(hash(host_name))
host_id = self.restclient.add_host_with_check(host_name, host_name_before_hash)
# Add initiator to the host.
self.restclient.ensure_initiator_added(self.xml_file_path, initiator_name, host_id)
hostgroup_id = self.restclient.add_host_into_hostgroup(host_id)
# Mapping lungroup and hostgroup to view.
lun_id = self.restclient.mapping_hostgroup_and_lungroup(volume_name, hostgroup_id, host_id, portgroup_id)
hostlun_id = self.restclient.find_host_lun_id(host_id, lun_id)
LOG.info(_LI("initialize_connection, host lun id is: %s."), hostlun_id)
iscsi_conf = huawei_utils.get_iscsi_conf(self.xml_file_path)
chapinfo = self.restclient.find_chap_info(iscsi_conf, initiator_name)
# Return iSCSI properties.
properties = {}
properties["target_discovered"] = False
properties["volume_id"] = volume["id"]
multipath = connector.get("multipath", False)
hostlun_id = int(hostlun_id)
if not multipath:
properties["target_portal"] = "%s:3260" % target_ips[0]
properties["target_iqn"] = iscsi_iqns[0]
properties["target_lun"] = hostlun_id
else:
properties["target_iqns"] = [iqn for iqn in iscsi_iqns]
properties["target_portals"] = ["%s:3260" % ip for ip in target_ips]
properties["target_luns"] = [hostlun_id] * len(target_ips)
# If use CHAP, return CHAP info.
if chapinfo:
chap_username, chap_password = chapinfo.split(";")
properties["auth_method"] = "CHAP"
properties["auth_username"] = chap_username
properties["auth_password"] = chap_password
LOG.info(_LI("initialize_connection success. Return data: %s."), properties)
return {"driver_volume_type": "iscsi", "data": properties}
