def _get_network(self, network_id):
network_dict = self.client.show_network(network_id)['network']
network = DictModel(network_dict)
network.external = network_dict.get('router:external')
obj_subnet = [self._get_subnet(s_id) for s_id in network.subnets]
network.subnets = obj_subnet
return network
def list_probes(self):
ports = self.client.list_ports(device_owner=[
DEVICE_OWNER_NETWORK_PROBE, DEVICE_OWNER_COMPUTE_PROBE
])
info = ports['ports']
for port in info:
port['device_name'] = self.driver.get_device_name(DictModel(port))
return info
def ensure_probe(self, network_id):
ports = self.client.list_ports(network_id=network_id,
device_id=socket.gethostname(),
device_owner=DEVICE_OWNER_NETWORK_PROBE)
info = ports.get('ports', [])
if info:
return DictModel(info[0])
else:
return self.create_probe(network_id)
def exec_command(self, port_id, command=None):
port = DictModel(self.client.show_port(port_id)['port'])
ip = ip_lib.IPWrapper(self.root_helper)
namespace = self._get_namespace(port)
if self.conf.use_namespaces:
if not command:
return "sudo ip netns exec %s" % self._get_namespace(port)
namespace = ip.ensure_namespace(namespace)
return namespace.netns.execute(shlex.split(command))
else:
return utils.execute(shlex.split(command))
def _create_port(self, network, device_owner):
body = dict(port=dict(
admin_state_up=True,
network_id=network.id,
device_id='%s' % socket.gethostname(),
device_owner='%s:probe' % device_owner,
tenant_id=network.tenant_id,
fixed_ips=[dict(subnet_id=s.id) for s in network.subnets]))
port_dict = self.client.create_port(body)['port']
port = DictModel(port_dict)
port.network = network
for fixed_ip in port.fixed_ips:
fixed_ip.subnet = self._get_subnet(fixed_ip.subnet_id)
return port
def _create_port(self, network, device_owner):
host = self.conf.host
body = {
'port': {
'admin_state_up': True,
'network_id': network.id,
'device_id': '%s' % socket.gethostname(),
'device_owner': '%s:probe' % device_owner,
'tenant_id': network.tenant_id,
'binding:host_id': host,
'fixed_ips': [dict(subnet_id=s.id) for s in network.subnets]
}
}
port_dict = self.client.create_port(body)['port']
port = DictModel(port_dict)
port.network = network
for fixed_ip in port.fixed_ips:
fixed_ip.subnet = self._get_subnet(fixed_ip.subnet_id)
return port
def delete_probe(self, port_id):
port = DictModel(self.client.show_port(port_id)['port'])
network = self._get_network(port.network_id)
bridge = None
if network.external:
bridge = self.conf.external_network_bridge
ip = ip_lib.IPWrapper(self.root_helper)
namespace = self._get_namespace(port)
if self.conf.use_namespaces and ip.netns.exists(namespace):
self.driver.unplug(self.driver.get_device_name(port),
bridge=bridge,
namespace=namespace)
try:
ip.netns.delete(namespace)
except Exception:
LOG.warn(_('Failed to delete namespace %s'), namespace)
else:
self.driver.unplug(self.driver.get_device_name(port),
bridge=bridge)
self.client.delete_port(port.id)
def _get_subnet(self, subnet_id):
subnet_dict = self.client.show_subnet(subnet_id)['subnet']
return DictModel(subnet_dict)