def _manage_port(self, vlan_name, vlan_id, host, instance):
"""Called during create and update port events.
Create a VLAN in the appropriate switch/port and configure the
appropriate interfaces for this VLAN.
"""
# Grab the switch IP and port for this host
for switch_ip, attr in self._nexus_switches:
if str(attr) == str(host):
port_id = self._nexus_switches[switch_ip, attr]
break
else:
raise excep.NexusComputeHostNotConfigured(host=host)
# Check if this network is already in the DB
vlan_created = False
vlan_trunked = False
try:
nxos_db.get_port_vlan_switch_binding(port_id, vlan_id, switch_ip)
except excep.NexusPortBindingNotFound:
# Check for vlan/switch binding
try:
nxos_db.get_nexusvlan_binding(vlan_id, switch_ip)
except excep.NexusPortBindingNotFound:
# Create vlan and trunk vlan on the port
LOG.debug(_("Nexus: create & trunk vlan %s"), vlan_name)
self.driver.create_and_trunk_vlan(switch_ip, vlan_id,
vlan_name, port_id)
vlan_created = True
vlan_trunked = True
else:
# Only trunk vlan on the port
LOG.debug(_("Nexus: trunk vlan %s"), vlan_name)
self.driver.enable_vlan_on_trunk_int(switch_ip, vlan_id,
port_id)
vlan_trunked = True
try:
nxos_db.add_nexusport_binding(port_id, str(vlan_id),
switch_ip, instance)
except Exception:
with excutils.save_and_reraise_exception():
# Add binding failed, roll back any vlan creation/enabling
if vlan_created and vlan_trunked:
LOG.debug(_("Nexus: delete & untrunk vlan %s"), vlan_name)
self.driver.delete_and_untrunk_vlan(switch_ip, vlan_id,
port_id)
elif vlan_created:
LOG.debug(_("Nexus: delete vlan %s"), vlan_name)
self.driver.delete_vlan(switch_ip, vlan_id)
elif vlan_trunked:
LOG.debug(_("Nexus: untrunk vlan %s"), vlan_name)
self.driver.disable_vlan_on_trunk_int(switch_ip, vlan_id,
port_id)
def _manage_port(self, vlan_name, vlan_id, host, instance):
"""Called during create and update port events.
Create a VLAN in the appropriate switch/port and configure the
appropriate interfaces for this VLAN.
"""
# Grab the switch IP and port for this host
for switch_ip, attr in self._nexus_switches:
if str(attr) == str(host):
port_id = self._nexus_switches[switch_ip, attr]
break
else:
raise excep.NexusComputeHostNotConfigured(host=host)
# Check if this network is already in the DB
vlan_created = False
vlan_trunked = False
try:
nxos_db.get_port_vlan_switch_binding(port_id, vlan_id, switch_ip)
except excep.NexusPortBindingNotFound:
# Check for vlan/switch binding
try:
nxos_db.get_nexusvlan_binding(vlan_id, switch_ip)
except excep.NexusPortBindingNotFound:
# Create vlan and trunk vlan on the port
LOG.debug(_("Nexus: create & trunk vlan %s"), vlan_name)
self.driver.create_and_trunk_vlan(switch_ip, vlan_id,
vlan_name, port_id)
vlan_created = True
vlan_trunked = True
else:
# Only trunk vlan on the port
LOG.debug(_("Nexus: trunk vlan %s"), vlan_name)
self.driver.enable_vlan_on_trunk_int(switch_ip, vlan_id,
port_id)
vlan_trunked = True
try:
nxos_db.add_nexusport_binding(port_id, str(vlan_id), switch_ip,
instance)
except Exception:
with excutils.save_and_reraise_exception():
# Add binding failed, roll back any vlan creation/enabling
if vlan_created and vlan_trunked:
LOG.debug(_("Nexus: delete & untrunk vlan %s"), vlan_name)
self.driver.delete_and_untrunk_vlan(
switch_ip, vlan_id, port_id)
elif vlan_created:
LOG.debug(_("Nexus: delete vlan %s"), vlan_name)
self.driver.delete_vlan(switch_ip, vlan_id)
elif vlan_trunked:
LOG.debug(_("Nexus: untrunk vlan %s"), vlan_name)
self.driver.disable_vlan_on_trunk_int(
switch_ip, vlan_id, port_id)
def delete_port_precommit(self, context):
"""Delete port pre-database commit event.
Delete port bindings from the database and scan whether the network
is still required on the interfaces trunked.
"""
if not self._is_deviceowner_compute(context.current):
return
port = context.current
device_id = port['device_id']
vlan_id = self._get_vlanid(context)
if not vlan_id or not device_id:
return
# Delete DB row for this port
try:
row = nxos_db.get_nexusvm_binding(vlan_id, device_id)
except excep.NexusPortBindingNotFound:
return
switch_ip = row.switch_ip
nexus_port = None
if row.port_id != 'router':
nexus_port = row.port_id
nxos_db.remove_nexusport_binding(row.port_id, row.vlan_id,
row.switch_ip, row.instance_id)
# Check for any other bindings with the same vlan_id and switch_ip
try:
nxos_db.get_nexusvlan_binding(row.vlan_id, row.switch_ip)
except excep.NexusPortBindingNotFound:
try:
# Delete this vlan from this switch
if nexus_port:
self.driver.disable_vlan_on_trunk_int(switch_ip,
row.vlan_id,
nexus_port)
self.driver.delete_vlan(switch_ip, row.vlan_id)
except Exception:
# The delete vlan operation on the Nexus failed,
# so this delete_port request has failed. For
# consistency, roll back the Nexus database to what
# it was before this request.
with excutils.save_and_reraise_exception():
nxos_db.add_nexusport_binding(row.port_id,
row.vlan_id,
row.switch_ip,
row.instance_id)
def delete_port_precommit(self, context):
"""Delete port pre-database commit event.
Delete port bindings from the database and scan whether the network
is still required on the interfaces trunked.
"""
if not self._is_deviceowner_compute(context.current):
return
port = context.current
device_id = port['device_id']
vlan_id = self._get_vlanid(context)
if not vlan_id or not device_id:
return
# Delete DB row for this port
try:
row = nxos_db.get_nexusvm_binding(vlan_id, device_id)
except excep.NexusPortBindingNotFound:
return
switch_ip = row.switch_ip
nexus_port = None
if row.port_id != 'router':
nexus_port = row.port_id
nxos_db.remove_nexusport_binding(row.port_id, row.vlan_id,
row.switch_ip, row.instance_id)
# Check for any other bindings with the same vlan_id and switch_ip
try:
nxos_db.get_nexusvlan_binding(row.vlan_id, row.switch_ip)
except excep.NexusPortBindingNotFound:
try:
# Delete this vlan from this switch
if nexus_port:
self.driver.disable_vlan_on_trunk_int(
switch_ip, row.vlan_id, nexus_port)
self.driver.delete_vlan(switch_ip, row.vlan_id)
except Exception:
# The delete vlan operation on the Nexus failed,
# so this delete_port request has failed. For
# consistency, roll back the Nexus database to what
# it was before this request.
with excutils.save_and_reraise_exception():
nxos_db.add_nexusport_binding(row.port_id, row.vlan_id,
row.switch_ip,
row.instance_id)
def _add_bindings_to_db(self, npbs):
"""Adds a list of port bindings to the Nexus database."""
for npb in npbs:
nexus_db_v2.add_nexusport_binding(
npb.port, npb.vlan, npb.switch, npb.instance)
def _add_binding_to_db(self, npb):
"""Adds a port binding to the Nexus database."""
return nexus_db_v2.add_nexusport_binding(
npb.port, npb.vlan, npb.switch, npb.instance)
