def _db_create(cls, object_uuid, metadata):
LOG.with_fields(metadata).with_field(
cls.object_type, object_uuid).debug('Object created')
metadata['uuid'] = object_uuid
etcd.create(cls.object_type, None, object_uuid, metadata)
db.add_event(cls.object_type, object_uuid, 'db record created', None,
None, None)
def new(cls, interface_uuid, netdesc, instance_uuid, order):
if 'macaddress' not in netdesc or not netdesc['macaddress']:
possible_mac = util_network.random_macaddr()
mac_iface = {'interface_uuid': interface_uuid}
while not etcd.create('macaddress', None, possible_mac, mac_iface):
possible_mac = util_network.random_macaddr()
netdesc['macaddress'] = possible_mac
if not interface_uuid:
# uuid should only be specified in testing
interface_uuid = str(uuid4())
NetworkInterface._db_create(
interface_uuid,
{
'network_uuid': netdesc['network_uuid'],
'instance_uuid': instance_uuid,
'macaddr': netdesc['macaddress'],
'ipv4': netdesc['address'],
'order': order,
'model': netdesc['model'],
'version': cls.current_version
}
)
ni = NetworkInterface.from_db(interface_uuid)
ni._db_set_attribute('floating', {'floating_address': None})
ni.state = NetworkInterface.STATE_INITIAL
# TODO(andy): Integrate metadata into each object type
# Initialise metadata
db.persist_metadata('networkinterface', interface_uuid, {})
return ni
def _allocate_console_port(self):
node = config.NODE_NAME
consumed = [
value['port'] for _, value in etcd.get_all('console', node)
]
while True:
port = random.randint(30000, 50000)
# avoid hitting etcd if it's probably in use
if port in consumed:
continue
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
# We hold this port open until it's in etcd to prevent
# anyone else needing to hit etcd to find out they can't
# use it as well as to verify we can use it
s.bind(('0.0.0.0', port))
allocatedPort = etcd.create('console', node, port, {
'instance_uuid': self.uuid,
'port': port,
})
if allocatedPort:
return port
except socket.error:
LOG.with_field('instance', self.uuid).info(
'Collided with in use port %d, selecting another' % port)
consumed.append(port)
finally:
s.close()
def allocate_console_port(instance_uuid):
node = config.NODE_NAME
consumed = {value['port'] for value in etcd.get_all('console', node)}
while True:
port = random.randint(30000, 50000)
# avoid hitting etcd if it's probably in use
if port in consumed:
continue
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
# We hold this port open until it's in etcd to prevent
# anyone else needing to hit etcd to find out they can't
# use it as well as to verify we can use it
s.bind(('0.0.0.0', port))
allocatedPort = etcd.create('console', node, port, {
'instance_uuid': instance_uuid,
'port': port,
})
if allocatedPort:
return port
except socket.error as e:
LOG.withField('instance', instance_uuid).info(
"Exception during port allocation: %s" % e)
finally:
s.close()
def allocate_network(netblock,
provide_dhcp=True,
provide_nat=False,
name=None,
namespace=None):
net_id = str(uuid.uuid4())
ipm = ipmanager.NetBlock(netblock)
etcd.put('ipmanager', None, net_id, ipm.save())
vxid = 1
while not etcd.create('vxlan', None, vxid, {'network_uuid': net_id}):
vxid += 1
d = {
'uuid': net_id,
'vxid': vxid,
'netblock': netblock,
'provide_dhcp': provide_dhcp,
'provide_nat': provide_nat,
'namespace': namespace,
'floating_gateway': None,
'name': name,
'state': 'initial',
'state_updated': time.time()
}
etcd.put('network', None, net_id, d)
return d
def create_network_interface(interface_uuid, netdesc, instance_uuid, order):
if 'macaddress' not in netdesc or not netdesc['macaddress']:
possible_mac = util.random_macaddr()
mac_iface = {'interface_uuid': interface_uuid}
while not etcd.create('macaddress', None, possible_mac, mac_iface):
possible_mac = util.random_macaddr()
netdesc['macaddress'] = possible_mac
etcd.put(
'networkinterface', None, interface_uuid, {
'uuid': interface_uuid,
'network_uuid': netdesc['network_uuid'],
'instance_uuid': instance_uuid,
'macaddr': netdesc['macaddress'],
'ipv4': netdesc['address'],
'order': order,
'floating': None,
'state': 'initial',
'state_updated': time.time(),
'model': netdesc['model']
})
def allocate_vxid(net_id):
vxid = random.randint(1, 16777215)
while not etcd.create('vxlan', None, vxid, {'network_uuid': net_id}):
vxid = random.randint(1, 16777215)
return vxid