def _check_network_overlap(self,
context,
user_network=None,
user_subnet=None):
"""Check if the network contains IP address belongs to reserved
network.
:param context: User context.
:param user_network: Network ID.
:param user_subnet: Subnet ID.
"""
neutron_client = clients.create_neutron_client(context)
user_cidrs = neutron.get_subnet_cidrs(neutron_client, user_network,
user_subnet)
reserved_cidrs = CONF.reserved_network_cidrs
mgmt_cidrs = neutron.get_mamangement_subnet_cidrs(neutron_client)
reserved_cidrs.extend(mgmt_cidrs)
LOG.debug(
"Cidrs of the user network: %s, cidrs of the reserved "
"network: %s", user_cidrs, reserved_cidrs)
for user_cidr in user_cidrs:
user_net = ipaddress.ip_network(user_cidr)
for reserved_cidr in reserved_cidrs:
res_net = ipaddress.ip_network(reserved_cidr)
if user_net.overlaps(res_net):
raise exception.NetworkConflict()
def _check_nic(self, context, nic):
"""Check user provided nic.
:param context: User context.
:param nic: A dict may contain network_id(net-id), subnet_id or
ip_address.
"""
neutron_client = clients.create_neutron_client(context)
network_id = nic.get('network_id', nic.get('net-id'))
subnet_id = nic.get('subnet_id')
ip_address = nic.get('ip_address')
if not network_id and not subnet_id:
raise exception.NetworkNotProvided(resource='network or subnet')
if not subnet_id and ip_address:
raise exception.NetworkNotProvided(resource='subnet')
if subnet_id:
actual_network = neutron_client.show_subnet(
subnet_id)['subnet']['network_id']
if network_id and actual_network != network_id:
raise exception.SubnetNotFound(subnet_id=subnet_id,
network_id=network_id)
network_id = actual_network
nic['network_id'] = network_id
nic.pop('net-id', None)
self._check_network_overlap(context, network_id, subnet_id)
def _check_network_overlap(self, context, user_network):
neutron_client = clients.create_neutron_client(context)
user_cidrs = neutron.get_subnet_cidrs(neutron_client, user_network)
mgmt_cidrs = neutron.get_mamangement_subnet_cidrs(neutron_client)
LOG.debug("Cidrs of the user network: %s, cidrs of the management "
"network: %s", user_cidrs, mgmt_cidrs)
for user_cidr in user_cidrs:
user_net = ipaddress.ip_network(user_cidr)
for mgmt_cidr in mgmt_cidrs:
mgmt_net = ipaddress.ip_network(mgmt_cidr)
if user_net.overlaps(mgmt_net):
raise exception.NetworkConflict()
def validate_instance_nics(context, instances):
"""Checking networks are same for the cluster."""
instance_nics = []
for instance in instances:
nics = instance.get('nics')
if nics:
instance_nics.append(nics[0].get('net-id'))
if len(set(instance_nics)) > 1:
raise exception.ClusterNetworksNotEqual()
if not instance_nics:
return
instance_nic = instance_nics[0]
try:
neutron_client = clients.create_neutron_client(context)
neutron_client.find_resource('network', instance_nic)
except neutron_exceptions.NotFound:
raise exception.NetworkNotFound(uuid=instance_nic)
def get_management_networks(context):
"""Cache the management network names.
When CONF.management_networks is changed, the Trove service needs to
restart so the global cache will be refreshed.
"""
global MGMT_NETWORKS
if MGMT_NETWORKS is not None:
return MGMT_NETWORKS
MGMT_NETWORKS = []
if len(CONF.management_networks) > 0:
neutron_client = clients.create_neutron_client(context)
for net_id in CONF.management_networks:
MGMT_NETWORKS.append(
neutron_client.show_network(net_id)['network']['name'])
return MGMT_NETWORKS
def __init__(self, context, region_name):
try:
self.client = clients.create_neutron_client(context, region_name)
except neutron_exceptions.NeutronClientException as e:
raise exception.TroveError(str(e))
