def _cleanup_orphan_adapters(self, vif, vswitch_name):
"""Finds and removes trunk VEAs that have no corresponding CNA."""
# Find and delete orphan adapters with macs matching our vif
orphans = pvm_cna.find_orphaned_trunks(self.adapter, vswitch_name)
for orphan in orphans:
if vm.norm_mac(orphan.mac) == vif['address']:
orphan.delete()
def _cleanup_orphan_adapters(self, vif, vswitch_name):
"""Finds and removes trunk VEAs that have no corresponding CNA."""
# Find and delete orphan adapters with macs matching our vif
orphans = pvm_cna.find_orphaned_trunks(self.adapter, vswitch_name)
for orphan in orphans:
if vm.norm_mac(orphan.mac) == vif['address']:
linux_net.delete_ovs_vif_port(vif['network']['bridge'],
self.get_trunk_dev_name(vif))
orphan.delete()
def execute(self, lpar_wrap):
LOG.info(_LI('Plugging the Network Interfaces to instance %s'),
self.instance.name)
# Get the current adapters on the system
cna_w_list = vm.get_cnas(self.adapter, self.instance, self.host_uuid)
# Trim the VIFs down to the ones that haven't yet been created.
crt_vifs = []
for vif in self.network_info:
for cna_w in cna_w_list:
if vm.norm_mac(cna_w.mac) == vif['address']:
break
else:
crt_vifs.append(vif)
# If there are no vifs to create, then just exit immediately.
if len(crt_vifs) == 0:
return []
# Check to see if the LPAR is OK to add VIFs to.
modifiable, reason = lpar_wrap.can_modify_io()
if not modifiable:
LOG.error(_LE('Unable to create VIF(s) for instance %(sys)s. The '
'VM was in a state where VIF plugging is not '
'acceptable. The reason from the system is: '
'%(reason)s'), {
'sys': self.instance.name,
'reason': reason
},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
# For the VIFs, run the creates (and wait for the events back)
try:
with self.virt_api.wait_for_instance_event(
self.instance,
self._get_vif_events(),
deadline=CONF.vif_plugging_timeout,
error_callback=self._vif_callback_failed):
for vif in crt_vifs:
LOG.info(_LI('Creating VIF with mac %(mac)s for instance '
'%(sys)s'), {
'mac': vif['address'],
'sys': self.instance.name
},
instance=self.instance)
vm.crt_vif(self.adapter, self.instance, self.host_uuid,
vif)
except eventlet.timeout.Timeout:
LOG.error(_LE('Error waiting for VIF to be created for instance '
'%(sys)s'), {'sys': self.instance.name},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
# Return the list of created VIFs.
return cna_w_list
def execute(self, lpar_wrap):
LOG.info(_LI('Unplugging the Network Interfaces to instance %s'),
self.instance.name)
# If the state is not in an OK state for deleting, then throw an
# error up front.
modifiable, reason = lpar_wrap.can_modify_io()
if not modifiable:
LOG.error(_LE('Unable to remove VIFs from instance %(inst)s '
'because the system is not in a correct state. '
'The reason reported by the system is: %(reason)s'),
{
'inst': self.instance.name,
'reason': reason
},
instance=self.instance)
raise VirtualInterfaceUnplugException()
# Get all the current Client Network Adapters (CNA) on the VM itself.
cna_w_list = vm.get_cnas(self.adapter, self.instance, self.host_uuid)
# Walk through the VIFs and delete the corresponding CNA on the VM.
for vif in self.network_info:
for cna_w in cna_w_list:
# If the MAC address matched, attempt the delete.
if vm.norm_mac(cna_w.mac) == vif['address']:
LOG.info(_LI('Deleting VIF with mac %(mac)s for instance '
'%(inst)s.'), {
'mac': vif['address'],
'inst': self.instance.name
},
instance=self.instance)
try:
cna_w.delete()
except Exception as e:
LOG.error(_LE('Unable to unplug VIF with mac %(mac)s '
'for instance %(inst)s.'), {
'mac': vif['address'],
'inst': self.instance.name
},
instance=self.instance)
LOG.error(e)
raise VirtualInterfaceUnplugException()
# Break from the loop as we had a successful unplug.
# This prevents from going to 'else' loop.
break
else:
LOG.warn(_LW('Unable to unplug VIF with mac %(mac)s for '
'instance %(inst)s. The VIF was not found on '
'the instance.'), {
'mac': vif['address'],
'inst': self.instance.name
},
instance=self.instance)
return cna_w_list
def execute(self, lpar_wrap):
LOG.info(_LI('Plugging the Network Interfaces to instance %s'),
self.instance.name)
# Get the current adapters on the system
cna_w_list = vm.get_cnas(self.adapter, self.instance, self.host_uuid)
# Trim the VIFs down to the ones that haven't yet been created.
crt_vifs = []
for vif in self.network_info:
for cna_w in cna_w_list:
if vm.norm_mac(cna_w.mac) == vif['address']:
break
else:
crt_vifs.append(vif)
# If there are no vifs to create, then just exit immediately.
if len(crt_vifs) == 0:
return []
# Check to see if the LPAR is OK to add VIFs to.
modifiable, reason = lpar_wrap.can_modify_io()
if not modifiable:
LOG.error(_LE('Unable to create VIF(s) for instance %(sys)s. The '
'VM was in a state where VIF plugging is not '
'acceptable. The reason from the system is: '
'%(reason)s'),
{'sys': self.instance.name, 'reason': reason},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
# For the VIFs, run the creates (and wait for the events back)
try:
with self.virt_api.wait_for_instance_event(
self.instance, self._get_vif_events(),
deadline=CONF.vif_plugging_timeout,
error_callback=self._vif_callback_failed):
for vif in crt_vifs:
LOG.info(_LI('Creating VIF with mac %(mac)s for instance '
'%(sys)s'),
{'mac': vif['address'],
'sys': self.instance.name},
instance=self.instance)
vm.crt_vif(self.adapter, self.instance, self.host_uuid,
vif)
except eventlet.timeout.Timeout:
LOG.error(_LE('Error waiting for VIF to be created for instance '
'%(sys)s'), {'sys': self.instance.name},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
# Return the list of created VIFs.
return cna_w_list
def _mgmt_cna_to_vif(self, cna):
"""Converts the mgmt CNA to VIF format for network injection."""
# See IEFT RFC 4291 appendix A for information on this algorithm
mac = vm.norm_mac(cna.mac)
ipv6_link_local = self._mac_to_link_local(mac)
subnet = network_model.Subnet(
version=6, cidr=_LLA_SUBNET,
ips=[network_model.FixedIP(address=ipv6_link_local)])
network = network_model.Network(id='mgmt', subnets=[subnet],
injected='yes')
return network_model.VIF(id='mgmt_vif', address=mac,
network=network)
def _mgmt_cna_to_vif(self, cna):
"""Converts the mgmt CNA to VIF format for network injection."""
# See IEFT RFC 4291 appendix A for information on this algorithm
mac = vm.norm_mac(cna.mac)
ipv6_link_local = self._mac_to_link_local(mac)
subnet = network_model.Subnet(
version=6, cidr=_LLA_SUBNET,
ips=[network_model.FixedIP(address=ipv6_link_local)])
network = network_model.Network(id='mgmt', subnets=[subnet],
injected='yes')
return network_model.VIF(id='mgmt_vif', address=mac,
network=network)
def _find_cna_for_vif(cna_w_list, vif):
"""Finds the PowerVM CNA for a given Nova VIF.
:param cna_w_list: The list of Client Network Adapter wrappers from
pypowervm.
:param vif: The Nova Virtual Interface (virtual network interface).
:return: The CNA that corresponds to the VIF. None if one is not
part of the cna_w_list.
"""
for cna_w in cna_w_list:
# If the MAC address matched, attempt the delete.
if vm.norm_mac(cna_w.mac) == vif['address']:
return cna_w
return None
def _find_cna_for_vif(self, cna_w_list, vif):
"""Finds the PowerVM CNA for a given Nova VIF.
:param cna_w_list: The list of Client Network Adapter wrappers from
pypowervm.
:param vif: The Nova Virtual Interface (virtual network interface).
:return: The CNA that corresponds to the VIF. None if one is not
part of the cna_w_list.
"""
for cna_w in cna_w_list:
# If the MAC address matched, attempt the delete.
if vm.norm_mac(cna_w.mac) == vif['address']:
return cna_w
return None
def execute(self, lpar_wrap):
LOG.info(_LI('Unplugging the Network Interfaces to instance %s'),
self.instance.name)
# If the state is not in an OK state for deleting, then throw an
# error up front.
modifiable, reason = lpar_wrap.can_modify_io()
if not modifiable:
LOG.error(_LE('Unable to remove VIFs from instance %(inst)s '
'because the system is not in a correct state. '
'The reason reported by the system is: %(reason)s'),
{'inst': self.instance.name, 'reason': reason},
instance=self.instance)
raise VirtualInterfaceUnplugException()
# Get all the current Client Network Adapters (CNA) on the VM itself.
cna_w_list = vm.get_cnas(self.adapter, self.instance, self.host_uuid)
# Walk through the VIFs and delete the corresponding CNA on the VM.
for vif in self.network_info:
for cna_w in cna_w_list:
# If the MAC address matched, attempt the delete.
if vm.norm_mac(cna_w.mac) == vif['address']:
LOG.info(_LI('Deleting VIF with mac %(mac)s for instance '
'%(inst)s.'), {'mac': vif['address'],
'inst': self.instance.name},
instance=self.instance)
try:
cna_w.delete()
except Exception as e:
LOG.error(_LE('Unable to unplug VIF with mac %(mac)s '
'for instance %(inst)s.'),
{'mac': vif['address'],
'inst': self.instance.name},
instance=self.instance)
LOG.error(e)
raise VirtualInterfaceUnplugException()
# Break from the loop as we had a successful unplug.
# This prevents from going to 'else' loop.
break
else:
LOG.warning(_LW('Unable to unplug VIF with mac %(mac)s for '
'instance %(inst)s. The VIF was not found on '
'the instance.'),
{'mac': vif['address'],
'inst': self.instance.name},
instance=self.instance)
return cna_w_list
def _vif_exists(self, network_info):
"""Does the instance have a CNA/VNIC (as appropriate) for a given net?
:param network_info: A network information dict. This method expects
it to contain keys 'vnic_type' (value is 'direct'
for VNIC; otherwise assume CNA); and 'address'
(MAC address).
:return: True if a CNA/VNIC (as appropriate) with the network_info's
MAC address exists on the instance. False otherwise.
"""
# Are we looking for a VNIC or a CNA?
if network_info['vnic_type'] == 'direct':
if self.vnics is None:
self.vnics = vm.get_vnics(self.adapter, self.instance)
vifs = self.vnics
else:
if self.cnas is None:
self.cnas = vm.get_cnas(self.adapter, self.instance)
vifs = self.cnas
return network_info['address'] in [vm.norm_mac(v.mac) for v in vifs]
def execute_impl(self, lpar_wrap):
# Get the current adapters on the system
cna_w_list = vm.get_cnas(self.adapter, self.instance)
# Trim the VIFs down to the ones that haven't yet been created.
crt_network_infos = []
for network_info in self.network_infos:
for cna_w in cna_w_list:
if vm.norm_mac(cna_w.mac) == network_info['address']:
break
else:
crt_network_infos.append(network_info)
# If there are no vifs to create, then just exit immediately.
if len(crt_network_infos) == 0:
return []
# Check to see if the LPAR is OK to add VIFs to.
modifiable, reason = lpar_wrap.can_modify_io()
if not modifiable:
LOG.error(_LE('Unable to create VIF(s) for instance %(sys)s. The '
'VM was in a state where VIF plugging is not '
'acceptable. The reason from the system is: '
'%(reason)s'),
{'sys': self.instance.name, 'reason': reason},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
# TODO(KYLEH): We're setting up to wait for an instance event. The
# event needs to come back to our compute manager so we need to ensure
# the instance.host is set to our host. We shouldn't need to do this
# but in the evacuate/recreate case it may reflect the old host.
# See: https://bugs.launchpad.net/nova/+bug/1535918
undo_host_change = False
if self.instance.host != CONF.host:
LOG.warning(_LW('Instance was not assigned to this host. '
'It was assigned to: %s'), self.instance.host,
instance=self.instance)
# Update the instance...
old_host = self.instance.host
self.instance.host = CONF.host
self.instance.save()
undo_host_change = True
# For the VIFs, run the creates (and wait for the events back)
try:
with self.virt_api.wait_for_instance_event(
self.instance, self._get_vif_events(),
deadline=CONF.vif_plugging_timeout,
error_callback=self._vif_callback_failed):
for network_info in crt_network_infos:
LOG.info(_LI('Creating VIF with mac %(mac)s for instance '
'%(sys)s'),
{'mac': network_info['address'],
'sys': self.instance.name},
instance=self.instance)
vif.plug(self.adapter, self.host_uuid, self.instance,
network_info, self.slot_mgr)
except eventlet.timeout.Timeout:
LOG.error(_LE('Error waiting for VIF to be created for instance '
'%(sys)s'), {'sys': self.instance.name},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
finally:
if undo_host_change:
LOG.info(_LI('Undoing temporary host assignment to instance.'),
instance=self.instance)
self.instance.host = old_host
self.instance.save()
# Return the list of created VIFs.
return cna_w_list
def test_norm_mac(self):
EXPECTED = "12:34:56:78:90:ab"
self.assertEqual(EXPECTED, vm.norm_mac("12:34:56:78:90:ab"))
self.assertEqual(EXPECTED, vm.norm_mac("1234567890ab"))
self.assertEqual(EXPECTED, vm.norm_mac("12:34:56:78:90:AB"))
self.assertEqual(EXPECTED, vm.norm_mac("1234567890AB"))
def test_norm_mac(self):
EXPECTED = "12:34:56:78:90:ab"
self.assertEqual(EXPECTED, vm.norm_mac("12:34:56:78:90:ab"))
self.assertEqual(EXPECTED, vm.norm_mac("1234567890ab"))
self.assertEqual(EXPECTED, vm.norm_mac("12:34:56:78:90:AB"))
self.assertEqual(EXPECTED, vm.norm_mac("1234567890AB"))
def execute(self, lpar_wrap):
LOG.info(_LI('Plugging the Network Interfaces to instance %s'),
self.instance.name)
# Get the current adapters on the system
cna_w_list = vm.get_cnas(self.adapter, self.instance, self.host_uuid)
# Trim the VIFs down to the ones that haven't yet been created.
crt_vifs = []
for vif in self.network_info:
for cna_w in cna_w_list:
if vm.norm_mac(cna_w.mac) == vif['address']:
break
else:
crt_vifs.append(vif)
# If there are no vifs to create, then just exit immediately.
if len(crt_vifs) == 0:
return []
# Check to see if the LPAR is OK to add VIFs to.
modifiable, reason = lpar_wrap.can_modify_io()
if not modifiable:
LOG.error(_LE('Unable to create VIF(s) for instance %(sys)s. The '
'VM was in a state where VIF plugging is not '
'acceptable. The reason from the system is: '
'%(reason)s'), {
'sys': self.instance.name,
'reason': reason
},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
# TODO(KYLEH): We're setting up to wait for an instance event. The
# event needs to come back to our compute manager so we need to ensure
# the instance.host is set to our host. We shouldn't need to do this
# but in the evacuate/recreate case it may reflect the old host.
# See: https://bugs.launchpad.net/nova/+bug/1535918
undo_host_change = False
if self.instance.host != CONF.host:
LOG.warning(_LW('Instance was not assigned to this host. '
'It was assigned to: %s'),
self.instance.host,
instance=self.instance)
# Update the instance...
old_host = self.instance.host
self.instance.host = CONF.host
self.instance.save()
undo_host_change = True
# For the VIFs, run the creates (and wait for the events back)
try:
with self.virt_api.wait_for_instance_event(
self.instance,
self._get_vif_events(),
deadline=CONF.vif_plugging_timeout,
error_callback=self._vif_callback_failed):
for vif in crt_vifs:
LOG.info(_LI('Creating VIF with mac %(mac)s for instance '
'%(sys)s'), {
'mac': vif['address'],
'sys': self.instance.name
},
instance=self.instance)
vm.crt_vif(self.adapter, self.instance, self.host_uuid,
vif)
except eventlet.timeout.Timeout:
LOG.error(_LE('Error waiting for VIF to be created for instance '
'%(sys)s'), {'sys': self.instance.name},
instance=self.instance)
raise exception.VirtualInterfaceCreateException()
finally:
if undo_host_change:
LOG.info(_LI('Undoing temporary host assignment to instance.'),
instance=self.instance)
self.instance.host = old_host
self.instance.save()
# Return the list of created VIFs.
return cna_w_list