nucypher/examples/run_demo_ursula_fleet.py

72 lines
2.2 KiB
Python

"""
This file is part of nucypher.
nucypher is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
nucypher is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with nucypher. If not, see <https://www.gnu.org/licenses/>.
"""
import os
from contextlib import suppress
from functools import partial
from pathlib import Path
from twisted.internet import reactor
from nucypher.characters.lawful import Ursula
from nucypher.config.constants import APP_DIR, TEMPORARY_DOMAIN
FLEET_POPULATION = 12
DEMO_NODE_STARTING_PORT = 11500
ursula_maker = partial(Ursula, rest_host='127.0.0.1',
federated_only=True,
domain=TEMPORARY_DOMAIN)
def spin_up_federated_ursulas(quantity: int = FLEET_POPULATION):
# Ports
starting_port = DEMO_NODE_STARTING_PORT
ports = list(map(str, range(starting_port, starting_port + quantity)))
ursulas = []
sage = ursula_maker(rest_port=ports[0], db_filepath=str(Path(APP_DIR.user_cache_dir) / 'sage.db'))
ursulas.append(sage)
for index, port in enumerate(ports[1:]):
u = ursula_maker(
rest_port=port,
seed_nodes=[sage.seed_node_metadata()],
start_learning_now=True,
db_filepath=f"{Path(APP_DIR.user_cache_dir) / port}.db",
)
ursulas.append(u)
for u in ursulas:
deployer = u.get_deployer()
deployer.addServices()
deployer.catalogServers(deployer.hendrix)
deployer.start()
print(f"{u}: {deployer._listening_message()}")
try:
reactor.run() # GO!
finally:
with suppress(FileNotFoundError):
os.remove("sage.db")
for u in ursulas[1:]:
with suppress(FileNotFoundError):
os.remove(f"{u.rest_interface.port}.db")
if __name__ == "__main__":
spin_up_federated_ursulas()