def start_charybdisfs(source: str, # noqa: C901 # ignore "is too complex" message
target: str,
debug: bool,
rest_api: bool,
rest_api_port: int,
mount: bool,
static_enospc: bool,
static_enospc_probability: float) -> None:
logging.basicConfig(stream=sys.stdout, level=logging.DEBUG if debug else logging.INFO, format=LOG_FORMAT)
if not rest_api and not mount:
raise click.UsageError(message="can't run --no-rest-api and --no-mount simultaneously")
if debug:
sys.addaudithook(sys_audit_hook)
if static_enospc:
static_enospc_probability = max(0, min(100, round(static_enospc_probability * 100)))
LOGGER.info("Going to add ENOSPC fault for all syscalls with probability %s%%", static_enospc_probability)
enospc_fault = ErrorFault(sys_call=SysCall.ALL, probability=static_enospc_probability, error_no=errno.ENOSPC)
Configuration.add_fault(fault_id=generate_fault_id(), fault=enospc_fault)
LOGGER.debug("Faults added: %s", Configuration.get_all_faults())
if rest_api:
api_server_thread = \
threading.Thread(target=start_charybdisfs_api_server,
kwargs={"port": rest_api_port, },
name="RestServerApi",
daemon=True)
api_server_thread.start()
atexit.register(stop_charybdisfs_api_server)
if mount:
if source is None or target is None:
raise click.BadArgumentUsage("both source and target parameters are required for CharybdisFS mount")
fuse_options = set(pyfuse3.default_options)
fuse_options.add("fsname=charybdisfs")
if debug:
fuse_options.add("debug")
operations = CharybdisOperations(source=source)
pyfuse3.init(operations, target, fuse_options)
atexit.register(pyfuse3.close)
try:
if mount:
trio.run(pyfuse3.main)
else:
api_server_thread.join()
except KeyboardInterrupt:
LOGGER.info("Interrupted by user...")
sys.exit(0)
elif method in (
"POST",
"CREATE",
"PUT",
):
if fault_id:
raise cherrypy.HTTPError(
message="Replacing of a fault is not supported")
if (fault := create_fault_from_dict(
data=cherrypy.request.json)) is None:
raise cherrypy.HTTPError(
message="Unable to create a fault from provided JSON data")
try:
fault_id = generate_fault_id()
Configuration.add_fault(fault_id=fault_id, fault=fault)
except ValueError as exc:
raise cherrypy.HTTPError(
message=
f"Unable to add a fault {fault} with {fault_id=}: {exc}"
) from None
return {"fault_id": fault_id}
elif method == "DELETE":
if Configuration.remove_fault(fault_id=fault_id):
return {"fault_id": fault_id}
raise cherrypy.NotFound()
def start_charybdisfs_api_server(port: int = DEFAULT_PORT) -> None:
conf = {
