def discover_st(self, data):
"""Discover iSCSI targets."""
target_portal = data['target_portal']
target_iqn = data['target_iqn']
LOG.debug(
_("Discovering iSCSI target %(target_iqn)s from "
"%(target_portal)s.") % locals())
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name:
LOG.debug(_("Storage target found. No need to discover"))
return (device_name, uuid)
# Rescan iSCSI HBA
volume_util.rescan_iscsi_hba(self._session, self._cluster)
# Find iSCSI Target again
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name:
LOG.debug(
_("Discovered iSCSI target %(target_iqn)s from "
"%(target_portal)s.") % locals())
else:
LOG.debug(
_("Unable to discovered iSCSI target %(target_iqn)s "
"from %(target_portal)s.") % locals())
return (device_name, uuid)
def discover_st(self, data):
"""Discover iSCSI targets."""
target_portal = data['target_portal']
target_iqn = data['target_iqn']
LOG.debug(_("Discovering iSCSI target %(target_iqn)s from "
"%(target_portal)s."),
{'target_iqn': target_iqn, 'target_portal': target_portal})
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name:
LOG.debug(_("Storage target found. No need to discover"))
return (device_name, uuid)
# Rescan iSCSI HBA
volume_util.rescan_iscsi_hba(self._session, self._cluster)
# Find iSCSI Target again
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name:
LOG.debug(_("Discovered iSCSI target %(target_iqn)s from "
"%(target_portal)s."),
{'target_iqn': target_iqn,
'target_portal': target_portal})
else:
LOG.debug(_("Unable to discovered iSCSI target %(target_iqn)s "
"from %(target_portal)s."),
{'target_iqn': target_iqn,
'target_portal': target_portal})
return (device_name, uuid)
def _detach_volume_iscsi(self, connection_info, instance, mountpoint):
"""Detach volume storage to VM instance."""
instance_name = instance['name']
vm_ref = vm_util.get_vm_ref(self._session, instance)
# Detach Volume from VM
LOG.debug(_("Detach_volume: %(instance_name)s, %(mountpoint)s"),
{'mountpoint': mountpoint, 'instance_name': instance_name})
data = connection_info['data']
# Discover iSCSI Target
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name is None:
raise volume_util.StorageError(_("Unable to find iSCSI Target"))
# Get the vmdk file name that the VM is pointing to
hardware_devices = self._session._call_method(vim_util,
"get_dynamic_property", vm_ref,
"VirtualMachine", "config.hardware.device")
device = vm_util.get_rdm_disk(hardware_devices, uuid)
if device is None:
raise volume_util.StorageError(_("Unable to find volume"))
self.detach_disk_from_vm(vm_ref, instance, device, destroy_disk=True)
LOG.info(_("Mountpoint %(mountpoint)s detached from "
"instance %(instance_name)s"),
{'mountpoint': mountpoint, 'instance_name': instance_name})
def test_find_st(self):
data = {'target_portal': 'fake_target_host:port',
'target_iqn': 'fake_target_iqn'}
host = vmwareapi_fake._get_objects('HostSystem').objects[0]
host._add_iscsi_target(data)
result = volume_util.find_st(self.conn._session, data)
self.assertEquals(('fake-device', 'fake-uuid'), result)
def detach_volume(self, connection_info, instance, mountpoint):
"""Detach volume storage to VM instance."""
instance_name = instance['name']
vm_ref = vm_util.get_vm_ref_from_name(self._session, instance_name)
if vm_ref is None:
raise exception.InstanceNotFound(instance_id=instance_name)
# Detach Volume from VM
LOG.debug(_("Detach_volume: %(instance_name)s, %(mountpoint)s")
% locals())
driver_type = connection_info['driver_volume_type']
if driver_type not in ['iscsi']:
raise exception.VolumeDriverNotFound(driver_type=driver_type)
data = connection_info['data']
# Discover iSCSI Target
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name is None:
raise volume_util.StorageError(_("Unable to find iSCSI Target"))
# Get the vmdk file name that the VM is pointing to
hardware_devices = self._session._call_method(vim_util,
"get_dynamic_property", vm_ref,
"VirtualMachine", "config.hardware.device")
device = vm_util.get_rdm_disk(hardware_devices, uuid)
if device is None:
raise volume_util.StorageError(_("Unable to find volume"))
self.detach_disk_from_vm(vm_ref, instance_name, device)
LOG.info(_("Mountpoint %(mountpoint)s detached from "
"instance %(instance_name)s") % locals())
def test_detach_iscsi_disk_from_vm(self):
self._create_vm()
connection_info = self._test_vmdk_connection_info("iscsi")
connection_info["data"]["target_portal"] = "fake_target_portal"
connection_info["data"]["target_iqn"] = "fake_target_iqn"
mount_point = "/dev/vdc"
find = ("fake_name", "fake_uuid")
self.mox.StubOutWithMock(volume_util, "find_st")
volume_util.find_st(mox.IgnoreArg(), connection_info["data"], mox.IgnoreArg()).AndReturn(find)
self.mox.StubOutWithMock(vm_util, "get_rdm_disk")
device = "fake_device"
vm_util.get_rdm_disk(mox.IgnoreArg(), "fake_uuid").AndReturn(device)
self.mox.StubOutWithMock(volumeops.VMwareVolumeOps, "detach_disk_from_vm")
volumeops.VMwareVolumeOps.detach_disk_from_vm(mox.IgnoreArg(), self.instance, device)
self.mox.ReplayAll()
self.conn.detach_volume(connection_info, self.instance, mount_point)
def _detach_volume_iscsi(self, connection_info, instance, mountpoint):
"""Detach volume storage to VM instance."""
instance_name = instance['name']
vm_ref = vm_util.get_vm_ref(self._session, instance)
# Detach Volume from VM
LOG.debug(_("Detach_volume: %(instance_name)s, %(mountpoint)s"), {
'mountpoint': mountpoint,
'instance_name': instance_name
},
instance=instance)
data = connection_info['data']
# Discover iSCSI Target
device_name, uuid = volume_util.find_st(self._session, data,
self._cluster)
if device_name is None:
raise volume_util.StorageError(_("Unable to find iSCSI Target"))
# Get the vmdk file name that the VM is pointing to
hardware_devices = self._session._call_method(
vim_util, "get_dynamic_property", vm_ref, "VirtualMachine",
"config.hardware.device")
device = vm_util.get_rdm_disk(hardware_devices, uuid)
if device is None:
raise volume_util.StorageError(_("Unable to find volume"))
self.detach_disk_from_vm(vm_ref, instance, device, destroy_disk=True)
LOG.info(_("Mountpoint %(mountpoint)s detached from "
"instance %(instance_name)s"), {
'mountpoint': mountpoint,
'instance_name': instance_name
},
instance=instance)
def test_detach_iscsi_disk_from_vm(self):
self._create_vm()
connection_info = self._test_vmdk_connection_info('iscsi')
connection_info['data']['target_portal'] = 'fake_target_portal'
connection_info['data']['target_iqn'] = 'fake_target_iqn'
mount_point = '/dev/vdc'
find = ('fake_name', 'fake_uuid')
self.mox.StubOutWithMock(volume_util, 'find_st')
volume_util.find_st(mox.IgnoreArg(), connection_info['data'],
mox.IgnoreArg()).AndReturn(find)
self.mox.StubOutWithMock(vm_util, 'get_rdm_disk')
device = 'fake_device'
vm_util.get_rdm_disk(mox.IgnoreArg(), 'fake_uuid').AndReturn(device)
self.mox.StubOutWithMock(volumeops.VMwareVolumeOps,
'detach_disk_from_vm')
volumeops.VMwareVolumeOps.detach_disk_from_vm(mox.IgnoreArg(),
self.instance, device)
self.mox.ReplayAll()
self.conn.detach_volume(connection_info, self.instance, mount_point)
def test_detach_iscsi_disk_from_vm(self):
self._create_vm()
connection_info = self._test_vmdk_connection_info('iscsi')
connection_info['data']['target_portal'] = 'fake_target_portal'
connection_info['data']['target_iqn'] = 'fake_target_iqn'
mount_point = '/dev/vdc'
find = ('fake_name', 'fake_uuid')
self.mox.StubOutWithMock(volume_util, 'find_st')
volume_util.find_st(mox.IgnoreArg(), connection_info['data'],
mox.IgnoreArg()).AndReturn(find)
self.mox.StubOutWithMock(vm_util, 'get_rdm_disk')
device = 'fake_device'
vm_util.get_rdm_disk(mox.IgnoreArg(), 'fake_uuid').AndReturn(device)
self.mox.StubOutWithMock(volumeops.VMwareVolumeOps,
'detach_disk_from_vm')
volumeops.VMwareVolumeOps.detach_disk_from_vm(mox.IgnoreArg(),
self.instance, device)
self.mox.ReplayAll()
self.conn.detach_volume(connection_info, self.instance, mount_point)