def activate(self):
disk = self.config.config['disks'].get(self.config_key, None)
if not disk:
raise CephiSCSIError("Image {} not found.".format(self.image))
wwn = disk.get('wwn', None)
if not wwn:
raise CephiSCSIError("LUN {} missing wwn".format(self.image))
# re-add backend storage object
so = self.lio_stg_object()
if not so:
self.add_dev_to_lio(wwn)
if self.error:
raise CephiSCSIError("LUN activate failure - {}".format(
self.error_msg))
# re-add LUN to target
local_gw = this_host()
targets_items = [
item for item in self.config.config['targets'].items()
if self.config_key in item[1]['disks']
and local_gw in item[1]['portals']
]
for target_iqn, target in targets_items:
ip_list = target['ip_list']
# Add the mapping for the lun to ensure the block device is
# present on all TPG's
gateway = GWTarget(self.logger, target_iqn, ip_list)
gateway.manage('map')
if gateway.error:
raise CephiSCSIError("LUN mapping failed - {}".format(
gateway.error_msg))
# re-map LUN to hosts
client_err = ''
for client_iqn in target['clients']:
client_metadata = target['clients'][client_iqn]
if client_metadata.get('group_name', ''):
continue
image_list = list(client_metadata['luns'].keys())
if self.config_key not in image_list:
continue
client_chap = CHAP(client_metadata['auth']['chap'])
chap_str = client_chap.chap_str
if client_chap.error:
raise CephiSCSIError("Password decode issue : "
"{}".format(client_chap.error_msg))
client_chap_mutual = CHAP(
client_metadata['auth']['chap_mutual'])
chap_mutual_str = client_chap_mutual.chap_str
if client_chap_mutual.error:
raise CephiSCSIError("Password decode issue : "
"{}".format(
client_chap_mutual.error_msg))
client = GWClient(self.logger, client_iqn, image_list,
chap_str, chap_mutual_str, target_iqn)
client.manage('present')
if client.error:
client_err = "LUN mapping failed {} - {}".format(
client_iqn, client.error_msg)
# re-map LUN to host groups
for group_name in target['groups']:
host_group = target['groups'][group_name]
members = host_group.get('members')
disks = host_group.get('disks').keys()
if self.config_key not in disks:
continue
group = Group(self.logger, target_iqn, group_name, members,
disks)
group.apply()
if group.error:
client_err = "LUN mapping failed {} - {}".format(
group_name, group.error_msg)
if client_err:
raise CephiSCSIError(client_err)
import ceph_iscsi_config.settings as settings
settings.init()
# Pre-reqs
# 1. You need a working ceph iscsi environment
# 2. disks and clients need to pre-exist
log = logging.getLogger()
log.setLevel(logging.DEBUG)
ch = logging.StreamHandler(sys.stdout)
log.addHandler(ch)
# 1. Create a new group definition
new_group = Group(
log, "mygroup",
['iqn.1994-05.com.redhat:my-esx-1', 'iqn.1994-05.com.redhat:my-esx-2'],
['rbd.disk_2', 'rbd.disk_1'])
new_group.apply()
assert not new_group.error, "Error caught when creating the group"
assert "mygroup" in new_group.config.config["groups"], \
"Group did not create/commit correctly to the configuration"
update_group = Group(log, "mygroup", [
'iqn.1994-05.com.redhat:my-esx-1', 'iqn.1994-05.com.redhat:my-esx-2',
'iqn.1994-05.com.redhat:my-esx-3'
], ['rbd.disk_2', 'rbd.disk_1', 'rbd.disk_3'])
update_group.apply()
assert len(update_group.config.config['groups']['mygroup']['members']) == 3, \