def create_network(self, network, attachment):
"""Create or update a network when an attachment is changed.
This method is not invoked at the usual plugin create_network() time.
Instead, it is invoked on create/update port.
:param network: Network on which the port operation is happening
:param attachment: Details about the owner of the port
Create a VLAN in the appropriate switch/port, and configure the
appropriate interfaces for this VLAN.
"""
LOG.debug(_("NexusPlugin:create_network() called"))
# Grab the switch IP and port for this host
host = str(attachment[const.HOST_NAME])
switch_ip, port_id = self._client.get_switch_and_port_id(host)
if not switch_ip and not port_id:
raise cisco_exc.NexusComputeHostNotConfigured(host=host)
vlan_id = network[const.NET_VLAN_ID]
vlan_name = network[const.NET_VLAN_NAME]
auto_create = True
auto_trunk = True
if cdb.is_provider_vlan(vlan_id):
vlan_name = ''.join(
[conf.CISCO.provider_vlan_name_prefix,
str(vlan_id)])
auto_create = conf.CISCO.provider_vlan_auto_create
auto_trunk = conf.CISCO.provider_vlan_auto_trunk
# 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 cisco_exc.NexusPortBindingNotFound:
# Check for vlan/switch binding
try:
nxos_db.get_nexusvlan_binding(vlan_id, switch_ip)
except cisco_exc.NexusPortBindingNotFound:
if auto_create and auto_trunk:
# Create vlan and trunk vlan on the port
LOG.debug("Nexus: create & trunk vlan %s" % vlan_name)
self._client.create_and_trunk_vlan(switch_ip, vlan_id,
vlan_name, port_id)
vlan_created = True
vlan_trunked = True
elif auto_create:
# Create vlan but do not trunk it on the port
LOG.debug("Nexus: create vlan %s" % vlan_name)
self._client.create_vlan(switch_ip, vlan_id, vlan_name)
vlan_created = True
else:
if auto_trunk:
# Only trunk vlan on the port
LOG.debug("Nexus: trunk vlan %s" % vlan_name)
self._client.enable_vlan_on_trunk_int(
switch_ip, vlan_id, port_id)
vlan_trunked = True
try:
instance = attachment[const.INSTANCE_ID]
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._client.delete_and_untrunk_vlan(
switch_ip, vlan_id, port_id)
elif vlan_created:
LOG.debug("Nexus: delete vlan %s" % vlan_name)
self._client.delete_vlan(switch_ip, vlan_id)
elif vlan_trunked:
LOG.debug("Nexus: untrunk vlan %s" % vlan_name)
self._client.disable_vlan_on_trunk_int(
switch_ip, vlan_id, port_id)
net_id = network[const.NET_ID]
new_net_dict = {
const.NET_ID: net_id,
const.NET_NAME: network[const.NET_NAME],
const.NET_PORTS: {},
const.NET_VLAN_NAME: vlan_name,
const.NET_VLAN_ID: vlan_id
}
self._networks[net_id] = new_net_dict
return new_net_dict
def create_network(self, network, attachment):
"""Create or update a network when an attachment is changed.
This method is not invoked at the usual plugin create_network() time.
Instead, it is invoked on create/update port.
:param network: Network on which the port operation is happening
:param attachment: Details about the owner of the port
Create a VLAN in the appropriate switch/port, and configure the
appropriate interfaces for this VLAN.
"""
LOG.debug(_("NexusPlugin:create_network() called"))
# Grab the switch IPs and ports for this host
host_connections = []
host = attachment['host_name']
for switch_type, switch_ip, attr in self._nexus_switches:
if str(attr) == str(host):
port = self._nexus_switches[switch_type, switch_ip, attr]
# Get ether type for port, assume an ethernet type
# if none specified.
if ':' in port:
etype, port_id = port.split(':')
else:
etype, port_id = 'ethernet', port
host_connections.append((switch_ip, etype, port_id))
if not host_connections:
raise cisco_exc.NexusComputeHostNotConfigured(host=host)
vlan_id = network[const.NET_VLAN_ID]
vlan_name = network[const.NET_VLAN_NAME]
auto_create = True
auto_trunk = True
if cdb.is_provider_vlan(vlan_id):
vlan_name = ''.join([conf.CISCO.provider_vlan_name_prefix,
str(vlan_id)])
auto_create = conf.CISCO.provider_vlan_auto_create
auto_trunk = conf.CISCO.provider_vlan_auto_trunk
# Check if this network is already in the DB
for switch_ip, etype, port_id in host_connections:
vlan_created = False
vlan_trunked = False
eport_id = '%s:%s' % (etype, port_id)
# Check for switch vlan bindings
try:
# This vlan has already been created on this switch
# via another operation, like SVI bindings.
nxos_db.get_nexusvlan_binding(vlan_id, switch_ip)
vlan_created = True
auto_create = False
except cisco_exc.NexusPortBindingNotFound:
# No changes, proceed as normal
pass
try:
nxos_db.get_port_vlan_switch_binding(eport_id, vlan_id,
switch_ip)
except cisco_exc.NexusPortBindingNotFound:
if auto_create and auto_trunk:
# Create vlan and trunk vlan on the port
LOG.debug(_("Nexus: create & trunk vlan %s"), vlan_name)
self._client.create_and_trunk_vlan(
switch_ip, vlan_id, vlan_name, etype, port_id)
vlan_created = True
vlan_trunked = True
elif auto_create:
# Create vlan but do not trunk it on the port
LOG.debug(_("Nexus: create vlan %s"), vlan_name)
self._client.create_vlan(switch_ip, vlan_id, vlan_name)
vlan_created = True
elif auto_trunk:
# Only trunk vlan on the port
LOG.debug(_("Nexus: trunk vlan %s"), vlan_name)
self._client.enable_vlan_on_trunk_int(
switch_ip, vlan_id, etype, port_id)
vlan_trunked = True
try:
instance = attachment[const.INSTANCE_ID]
nxos_db.add_nexusport_binding(eport_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._client.delete_and_untrunk_vlan(switch_ip,
vlan_id,
etype, port_id)
elif vlan_created:
LOG.debug(_("Nexus: delete vlan %s"), vlan_name)
self._client.delete_vlan(switch_ip, vlan_id)
elif vlan_trunked:
LOG.debug(_("Nexus: untrunk vlan %s"), vlan_name)
self._client.disable_vlan_on_trunk_int(switch_ip,
vlan_id,
etype,
port_id)
net_id = network[const.NET_ID]
new_net_dict = {const.NET_ID: net_id,
const.NET_NAME: network[const.NET_NAME],
const.NET_PORTS: {},
const.NET_VLAN_NAME: vlan_name,
const.NET_VLAN_ID: vlan_id}
self._networks[net_id] = new_net_dict
return new_net_dict