def create_network_postcommit(self, context):
"""Create a network.
:param context: NetworkContext instance describing the new
network.
Called after the transaction commits. Call can block, though
will block the entire process so care should be taken to not
drastically affect performance. Raising an exception will
cause the deletion of the resource.
"""
network = context.current
network_id = network['id']
provider_type = network['provider:network_type']
segmentation_id = network['provider:segmentation_id']
if provider_type == 'vlan' and segmentation_id:
# Create vlan on all switches from this driver
for switch_name, switch in self.switches.items():
try:
switch.add_network(segmentation_id, network_id)
except Exception as e:
LOG.error(_LE("Failed to create network %(net_id)s "
"on device: %(switch)s, reason: %(exc)s"),
{'net_id': network_id,
'switch': switch_name,
'exc': e})
LOG.info(_LI('Network %(net_id)s has been added on device '
'%(device)s'), {'net_id': network['id'],
'device': switch_name})
def delete_network_postcommit(self, context):
"""Delete a network.
:param context: NetworkContext instance describing the current
state of the network, prior to the call to delete it.
Called after the transaction commits. Call can block, though
will block the entire process so care should be taken to not
drastically affect performance. Runtime errors are not
expected, and will not prevent the resource from being
deleted.
"""
network = context.current
provider_type = network['provider:network_type']
segmentation_id = network['provider:segmentation_id']
if provider_type == 'vlan' and segmentation_id:
# Delete vlan on all switches from this driver
for switch_name, switch in self.switches.items():
try:
switch.del_network(segmentation_id)
except Exception as e:
LOG.error(_LE("Failed to delete network %(net_id)s "
"on device: %(switch)s, reason: %(exc)s"),
{'net_id': network['id'],
'switch': switch_name,
'exc': e})
LOG.info(_LI('Network %(net_id)s has been deleted on device '
'%(device)s'), {'net_id': network['id'],
'device': switch_name})
def plug_port_to_network(self, port, segmentation_id):
self._exec_commands(
self.PLUG_PORT_TO_NETWORK,
port=port,
segmentation_id=segmentation_id)
LOG.info(_LI("Port %(port)s has been added to vlan "
"%(segmentation_id)d"),
{'port': port, 'segmentation_id': segmentation_id})
def delete_port(self, port, segmentation_id):
self._exec_commands(
self.DELETE_PORT,
port=port,
segmentation_id=segmentation_id)
LOG.info(_LI("Port %(port)s has been removed from vlan "
"%(segmentation_id)d"),
{'port': port, 'segmentation_id': segmentation_id})
def add_network(self, segmentation_id, network_id):
# NOTE(zhenguo): Remove dashes from uuid as on most devices 32 chars
# is the max length of vlan name.
network_id = uuid.UUID(network_id).hex
self._exec_commands(
self.ADD_NETWORK,
segmentation_id=segmentation_id,
network_id=network_id)
LOG.info(_LI('Network %s has been added'), network_id)
def initialize(self):
"""Perform driver initialization.
Called after all drivers have been loaded and the database has
been initialized. No abstract methods defined below will be
called prior to this method being called.
"""
gsw_devices = gsw_conf.get_devices()
self.switches = {}
for switch_info, device_cfg in gsw_devices.items():
switch = devices.device_manager(device_cfg)
self.switches[switch_info] = switch
LOG.info(_LI('Devices %s have been loaded'), self.switches.keys())
def initialize(self):
"""Perform driver initialization.
Called after all drivers have been loaded and the database has
been initialized. No abstract methods defined below will be
called prior to this method being called.
"""
gsw_devices = gsw_conf.get_devices()
self.switches = {}
for switch_info, device_cfg in gsw_devices.items():
switch = devices.device_manager(device_cfg)
self.switches[switch_info] = switch
LOG.info(_LI('Devices %s have been loaded'), self.switches.keys())
def delete_port_postcommit(self, context):
"""Delete a port.
:param context: PortContext instance describing the current
state of the port, prior to the call to delete it.
Called after the transaction completes. Call can block, though
will block the entire process so care should be taken to not
drastically affect performance. Runtime errors are not
expected, and will not prevent the resource from being
deleted.
"""
port = context.current
binding_profile = port['binding:profile']
local_link_information = binding_profile.get('local_link_information')
vnic_type = port['binding:vnic_type']
if vnic_type == 'baremetal' and local_link_information:
switch_info = local_link_information[0].get('switch_info')
if switch_info not in self.switches:
return
port_id = local_link_information[0].get('port_id')
network = context.network.current
segmentation_id = network.get('provider:segmentation_id', '1')
LOG.debug("Deleting port {port} on {switch_info} from vlan: "
"{segmentation_id}".format(
port=port_id,
switch_info=switch_info,
segmentation_id=segmentation_id))
try:
self.switches[switch_info].delete_port(port_id,
segmentation_id)
except Exception as e:
LOG.error(_LE("Failed to delete port %(port_id)s "
"on device: %(switch)s from network %(net_id)s "
"reason: %(exc)s"),
{'port_id': port['id'], 'net_id': network['id'],
'switch': switch_info, 'exc': e})
raise e
LOG.info(_LI('Port %(port_id)s has been deleted from network '
' %(net_id)s on device %(device)s'),
{'port_id': port['id'], 'net_id': network['id'],
'device': switch_info})
def del_network(self, segmentation_id):
self._exec_commands(
self.DELETE_NETWORK,
segmentation_id=segmentation_id)
LOG.info(_LI('Network %s has been deleted'), segmentation_id)
def add_network(self, segmentation_id, network_id):
self._exec_commands(
self.ADD_NETWORK,
segmentation_id=segmentation_id,
network_id=network_id)
LOG.info(_LI('Network %s has been added'), network_id)
def bind_port(self, context):
"""Attempt to bind a port.
:param context: PortContext instance describing the port
This method is called outside any transaction to attempt to
establish a port binding using this mechanism driver. Bindings
may be created at each of multiple levels of a hierarchical
network, and are established from the top level downward. At
each level, the mechanism driver determines whether it can
bind to any of the network segments in the
context.segments_to_bind property, based on the value of the
context.host property, any relevant port or network
attributes, and its own knowledge of the network topology. At
the top level, context.segments_to_bind contains the static
segments of the port's network. At each lower level of
binding, it contains static or dynamic segments supplied by
the driver that bound at the level above. If the driver is
able to complete the binding of the port to any segment in
context.segments_to_bind, it must call context.set_binding
with the binding details. If it can partially bind the port,
it must call context.continue_binding with the network
segments to be used to bind at the next lower level.
If the binding results are committed after bind_port returns,
they will be seen by all mechanism drivers as
update_port_precommit and update_port_postcommit calls. But if
some other thread or process concurrently binds or updates the
port, these binding results will not be committed, and
update_port_precommit and update_port_postcommit will not be
called on the mechanism drivers with these results. Because
binding results can be discarded rather than committed,
drivers should avoid making persistent state changes in
bind_port, or else must ensure that such state changes are
eventually cleaned up.
Implementing this method explicitly declares the mechanism
driver as having the intention to bind ports. This is inspected
by the QoS service to identify the available QoS rules you
can use with ports.
"""
port = context.current
binding_profile = port['binding:profile']
local_link_information = binding_profile.get('local_link_information')
vnic_type = port['binding:vnic_type']
if vnic_type == 'baremetal' and local_link_information:
switch_info = local_link_information[0].get('switch_info')
if switch_info not in self.switches:
return
port_id = local_link_information[0].get('port_id')
segments = context.segments_to_bind
segmentation_id = segments[0].get('segmentation_id')
# If segmentation ID is None, set vlan 1
if not segmentation_id:
segmentation_id = '1'
provisioning_blocks.add_provisioning_component(
context._plugin_context, port['id'], resources.PORT,
GENERIC_SWITCH_ENTITY)
LOG.debug("Putting port {port} on {switch_info} to vlan: "
"{segmentation_id}".format(
port=port_id,
switch_info=switch_info,
segmentation_id=segmentation_id))
# Move port to network
self.switches[switch_info].plug_port_to_network(port_id,
segmentation_id)
LOG.info(_LI("Successfully bound port %(port_id)s in segment "
" %(segment_id)s on device %(device)s"),
{'port_id': port['id'], 'device': switch_info,
'segment_id': segmentation_id})
context.set_binding(segments[0][driver_api.ID],
portbindings.VIF_TYPE_OTHER, {})
def add_network(self, segmentation_id, network_id):
self._exec_commands(self.ADD_NETWORK,
segmentation_id=segmentation_id,
network_id=network_id)
LOG.info(_LI('Network %s has been added'), network_id)