def test_unplug_vifs(self, mock_vm_get, mock_unplug, mock_get_wrap):
"""Tests that a delete of the vif can be done."""
inst = powervm.TEST_INSTANCE
# Mock up the CNA responses.
cnas = [cna('AABBCCDDEEFF'), cna('AABBCCDDEE11'), cna('AABBCCDDEE22')]
mock_vm_get.return_value = cnas
# Mock up the network info. This also validates that they will be
# sanitized to upper case.
net_info = [
{'address': 'aa:bb:cc:dd:ee:ff'}, {'address': 'aa:bb:cc:dd:ee:22'},
{'address': 'aa:bb:cc:dd:ee:33'}
]
# Mock out the instance wrapper
mock_get_wrap.return_value = self.mock_lpar_wrap
# Mock out the vif driver
def validate_unplug(adapter, instance, vif, cna_w_list=None):
self.assertEqual(adapter, self.apt)
self.assertEqual(instance, inst)
self.assertIn(vif, net_info)
self.assertEqual(cna_w_list, cnas)
mock_unplug.side_effect = validate_unplug
# Run method
p_vifs = tf_net.UnplugVifs(self.apt, inst, net_info)
p_vifs.execute()
# Make sure the unplug was invoked, so that we know that the validation
# code was called
self.assertEqual(3, mock_unplug.call_count)
def _setup_flow_and_run():
# Define the flow
flow = tf_lf.Flow("destroy")
# Power Off the LPAR. If its disks are about to be deleted, issue a
# hard shutdown.
flow.add(
tf_vm.PowerOff(self.adapter,
instance,
force_immediate=destroy_disks))
# The FeedTask accumulates storage disconnection tasks to be run in
# parallel.
stg_ftsk = pvm_par.build_active_vio_feed_task(
self.adapter, xag=[pvm_const.XAG.VIO_SMAP])
# Call the unplug VIFs task. While CNAs get removed from the LPAR
# directly on the destroy, this clears up the I/O Host side.
flow.add(tf_net.UnplugVifs(self.adapter, instance, network_info))
# Add the disconnect/deletion of the vOpt to the transaction
# manager.
if configdrive.required_by(instance):
flow.add(
tf_stg.DeleteVOpt(self.adapter,
instance,
stg_ftsk=stg_ftsk))
# Extract the block devices.
bdms = driver.block_device_info_get_mapping(block_device_info)
# Determine if there are volumes to detach. If so, remove each
# volume (within the transaction manager)
for bdm, vol_drv in self._vol_drv_iter(context,
instance,
bdms,
stg_ftsk=stg_ftsk):
flow.add(tf_stg.DetachVolume(vol_drv))
# Detach the disk storage adapters
flow.add(tf_stg.DetachDisk(self.disk_dvr, instance))
# Accumulated storage disconnection tasks next
flow.add(stg_ftsk)
# Delete the storage disks
if destroy_disks:
flow.add(tf_stg.DeleteDisk(self.disk_dvr))
# TODO(thorst, efried) Add LPAR id based scsi map clean up task
flow.add(tf_vm.Delete(self.adapter, instance))
# Build the engine & run!
tf_base.run(flow, instance=instance)
def test_unplug_vifs_invalid_state(self, mock_get_wrap):
"""Tests that the delete raises an exception if bad VM state."""
inst = powervm.TEST_INSTANCE
# Mock out the instance wrapper
mock_get_wrap.return_value = self.mock_lpar_wrap
# Mock that the state is incorrect
self.mock_lpar_wrap.can_modify_io.return_value = False, 'bad'
# Run method
p_vifs = tf_net.UnplugVifs(self.apt, inst, mock.Mock())
self.assertRaises(exception.VirtualInterfaceUnplugException,
p_vifs.execute)
def unplug_vifs(self, instance, network_info):
"""Unplug VIFs from networks."""
self._log_operation('unplug_vifs', instance)
# Define the flow
flow = tf_lf.Flow("unplug_vifs")
# Run the detach
flow.add(tf_net.UnplugVifs(self.adapter, instance, network_info))
# Run the flow
try:
tf_base.run(flow, instance=instance)
except exc.InstanceNotFound:
LOG.warning('VM was not found during unplug operation as it is '
'already possibly deleted.', instance=instance)
except Exception:
LOG.exception("PowerVM error trying to unplug vifs.",
instance=instance)
raise exc.InterfaceDetachFailed(instance_uuid=instance.uuid)