def clear_config(self):
"""
Remove the target definition form LIO
:return: None
"""
# check that there aren't any disks or clients in the configuration
lio = LIO()
disk_count = len(
[disk for disk in lio.ceph_storage_objects(self.config)])
clients = []
for tpg in self.tpg_list:
tpg_clients = [node for node in tpg._list_node_acls()]
clients += tpg_clients
client_count = len(clients)
if disk_count > 0 or client_count > 0:
self.error = True
self.error_msg = ("Clients({}) and disks({}) must be removed"
"before the gateways".format(
client_count, disk_count))
return
self.logger.debug("Clients defined :{}".format(client_count))
self.logger.debug("Disks defined :{}".format(disk_count))
self.logger.info("Removing target configuration")
try:
self.delete()
except RTSLibError as err:
self.error = True
self.error_msg = "Unable to delete target - {}".format(err)
def map_luns(self, config):
"""
LIO will have objects already defined by the lun module,
so this method, brings those objects into the gateways TPG
"""
lio = LIO()
# process each storage object added to the gateway, and map to the tpg
for stg_object in lio.ceph_storage_objects(config):
for tpg in self.tpg_list:
self.logger.debug("processing tpg{}".format(tpg.tag))
if not self.lun_mapped(tpg, stg_object):
self.logger.debug("{} needed mapping to "
"tpg{}".format(stg_object.name, tpg.tag))
lun_id = int(stg_object.path.split('/')[-2].split('_')[1])
try:
mapped_lun = LUN(tpg,
lun=lun_id,
storage_object=stg_object)
self.changes_made = True
except RTSLibError as err:
self.logger.error("LUN mapping failed: {}".format(err))
self.error = True
self.error_msg = err
return
try:
self.bind_alua_group_to_lun(config, mapped_lun)
except CephiSCSIInval as err:
self.logger.error("Could not bind LUN to ALUA group: "
"{}".format(err))
self.error = True
self.error_msg = err
return
