def create_or_update(self, conn, filters=None):
changed = False
refs = self._refs_from_ser(conn)
# 1. ensure a port exists with the required `fixed_ips`
sdk_params = self._to_sdk_params(refs)
port = self._find_port_by_subnet_ips(conn, refs, filters)
if port:
# port exists but is assigned to something else => fail
if ((port['device_owner'] and port['device_owner'] != 'network:router_interface')
or (port['device_id'] and port['device_id'] != refs['device_id'])):
raise exc.CannotConverge(
"Port with IP address for router import exists, and it is assigned "
"to a different device: {0}".format(port.to_dict())
)
if self._port_needs_update(self.from_sdk(conn, port)):
port = self._update_port(conn, port['id'], sdk_params)
changed = True
else:
port = self._create_port(conn, sdk_params)
changed = True
# 2. ensure the port is attached to the router by `router_name`
if port['device_owner'] != 'network:router_interface' \
and port['device_id'] != refs['device_id']:
conn.network.add_interface_to_router(
refs['device_id'], port_id=port['id'])
changed = True
return changed
def _find_my_server_port(self, conn, sdk_srv, delay=5, retries=5):
params = self.params()
for try_number in range(retries):
srv_ports = conn.network.ports(device_id=sdk_srv['id'])
for port in srv_ports:
port_fixed_ips = [item['ip_address'] for item in port['fixed_ips']]
if params['fixed_ip_address'] in port_fixed_ips:
return port
# wait and retry
time.sleep(delay)
# still failing after max retries
raise exc.CannotConverge(
"Floating IP for server '{0}' ('{1}') is meant to attach "
"to a port with fixed IP '{2}', but no such port was found "
"on that server.".format(
sdk_srv['name'],
sdk_srv['id'],
params['fixed_ip_address'],
)
)
def _find_port_by_subnet_ips(self, conn, refs, filters=None):
net_ports = conn.network.ports(network_id=refs['network_id'], **(filters or {}))
matching_ports = []
for port in net_ports:
for fixed_ip in port['fixed_ips']:
filtered = dict(filter(
lambda keyval: keyval[0] in ['subnet_id', 'ip_address'],
fixed_ip.items()))
if filtered in refs['fixed_ips']:
matching_ports.append(port)
break
if len(matching_ports) == 0:
return None
elif len(matching_ports) == 1:
return matching_ports[0]
else:
raise exc.CannotConverge(
"When creating a port for router '{0}', multiple "
"existing ports were found owning addresses that should "
"belong to a single port on the router. The ports are: {1}"
.format(refs['device_ref']['name'], matching_ports)
)