def try_linkloop(loop_dev):
path = '/root/blocks/'
if not os.path.exists(path):
putils.execute('mkdir', '-p', path, run_as_root=True, root_helper=rootwrap.root_helper())
path = path + 'snap' + loop_dev[9:] + '.blk'
if not os.path.exists(path):
putils.execute('dd', 'if=/dev/zero', 'of=' + path, 'bs=1M', 'count=512',
run_as_root=True, root_helper=rootwrap.root_helper())
linkloop(loop_dev, path)
def is_looped(loop_dev):
(out, err) = putils.execute("losetup", '-a', run_as_root=True,
root_helper=rootwrap.root_helper())
looped_list = [line.split()[0].rstrip(":")
for line in out.strip().split('\n')]
if loop_dev in looped_list:
return True
return False
def reload_multipath(name, disks):
blk = Blockdev(root_helper=rootwrap.root_helper())
size = blk.get_sector_count(disks[0])
multipath_table = '0 %d multipath 0 0 1 1 queue-length 0 %d 1 ' % (size, len(disks))
for disk in disks:
multipath_table += disk + ' 128 '
multipath_table += '\n'
reload_table(name, multipath_table)
def is_connected(target_id):
"""This method is to judge whether a target is hanging by other VMs"""
#TODO: try to call brick.iscsi
#cmd = "tgtadm --lld iscsi --mode conn --op show --tid " + str(target_id)
(output, error) = putils.execute("tgtadm", '--lld', 'iscsi', '--mode', 'conn', '--op', 'show', '--tid',
str(target_id), run_as_root=True, root_helper=rootwrap.root_helper())
if len(output) == 0:
return False
return True
def unlinkloop(loop_dev):
if is_looped(loop_dev):
putils.execute('losetup', '-d', loop_dev,
run_as_root=True, root_helper=rootwrap.root_helper())
def linkloop(loop_dev, path):
putils.execute('losetup', loop_dev, path,
run_as_root=True, root_helper=rootwrap.root_helper())
def findloop():
# Licyh NOTE: openstack.common.processutils & subprocess.Popen only
# supports 'ls' not 'cat a.py' but 'cat','a.py',
(out, err) = putils.execute('losetup', '-f', run_as_root=True,
root_helper=rootwrap.root_helper())
return out.strip()
def __init__(self):
dmsetup.Dmsetup.__init__(self, root_helper=rootwrap.root_helper())
def link(src, dst):
return execute('ln', '-s', src, dst, run_as_root=True,
root_helper=rootwrap.root_helper())
def unlink(path):
return execute('rm', '-f', path, run_as_root=True,
root_helper=rootwrap.root_helper())
from brick.iscsi.iscsi import TgtAdm
from virtman.utils import rootwrap
from virtman.utils import singleton
from virtman.openstack.common import processutils as putils
class TgtExecutor(TgtAdm):
def __init__(self, root_helper='', volumes_dir='/etc/tgt/stack.d'):
TgtAdm.__init__(self, root_helper, volumes_dir)
tgt = TgtExecutor(rootwrap.root_helper(), '/etc/tgt/stack.d')
def create_iscsi_target(iqn, path):
# params included (iqn tid lun path) but (tid lun) not need for
# tgt to create target
return tgt.create_iscsi_target(iqn, '', '', path)
def remove_iscsi_target(vol_id, vol_name):
return tgt.remove_iscsi_target('', '', vol_id, vol_name)
def exists(iqn):
return tgt.exist(iqn)
def disconnect_volume(connection, device_info):
#TODO: Fix this problem
#cmd = "iscsiadm -m node -T " + connection['target_iqn'] + " -p " + connection['target_portal'][:-5] + " --logout"
putils.execute("iscsiadm", '-m', 'node', '-T', connection['target_iqn'], '-p', connection['target_portal'],
'--logout', run_as_root=True, root_helper=rootwrap.root_helper())
def __init__(self):
ISCSIConnector.__init__(self, device_scan_attempts=5,
root_helper=rootwrap.root_helper())
def __init__(self):
FCG.__init__(self, CONF.fcg_name, root_helper=rootwrap.root_helper())
def __init__(self):
ISCSIConnector.__init__(self, root_helper=rootwrap.root_helper())