def condition():
try:
m.init_connection(timeout=1)
return True
except:
log_exc_traceback()
return False
def _run(self):
os.setpgrp()
signal.signal(signal.SIGHUP, self._sig_ign)
signal.signal(signal.SIGINT, self._sig_ign)
signal.signal(signal.SIGTERM, self._sig_ign)
self._connection_pipe = self._write_pipe
self._log_ctl.disable_logging()
self._log_ctl.set_connection(self._connection_pipe)
result = {}
try:
self._cmd_cls.run()
except (KeyboardInterrupt, SystemExit):
pass
except:
log_exc_traceback()
type, value, tb = sys.exc_info()
data = {"Exception": "%s" % value}
self._cmd_cls.set_fail(data)
finally:
res_data = self._cmd_cls.get_result()
result["type"] = "result"
result["cmd_id"] = self._id
result["result"] = res_data
send_data(self._write_pipe, result)
self._write_pipe.close()
def _run(self):
self._parent_pipe.close()
os.setpgrp()
signal.signal(signal.SIGHUP, signal.SIG_DFL)
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
self._log_ctl.disable_logging()
self._log_ctl.set_connection(self._child_pipe)
result = {}
try:
self._job_cls.run()
job_result = self._job_cls.get_result()
except Exception as e:
log_exc_traceback()
job_result = {}
job_result["passed"] = False
job_result["type"] = "exception"
job_result["res_data"] = self._job_cls.get_result()
job_result["res_data"]["exception"] = e
finally:
result["type"] = "job_finished"
result["job_id"] = self._id
result["result"] = job_result
send_data(self._child_pipe, result)
self._child_pipe.close()
def _run(self):
os.setpgrp()
signal.signal(signal.SIGHUP, self._sig_ign)
signal.signal(signal.SIGINT, self._sig_ign)
signal.signal(signal.SIGTERM, self._sig_ign)
self._connection_pipe = self._write_pipe
self._log_ctl.disable_logging()
self._log_ctl.set_connection(self._connection_pipe)
result = {}
try:
self._cmd_cls.run()
except (KeyboardInterrupt, SystemExit):
pass
except:
log_exc_traceback()
type, value, tb = sys.exc_info()
data = {"Exception": "%s" % value}
self._cmd_cls.set_fail(data)
finally:
res_data = self._cmd_cls.get_result()
result["type"] = "result"
result["cmd_id"] = self._id
result["result"] = res_data
send_data(self._write_pipe, result)
self._write_pipe.close()
def _cleanup_slaves(self):
if self._machines == None:
return
for m_id, machine in list(self._machines.items()):
try:
machine.cleanup()
except:
#TODO report errors during deconfiguration as FAIL!!
log_exc_traceback()
finally:
machine.stop_recipe()
for dev in list(machine._device_database.values()):
if isinstance(dev, VirtualDevice):
dev._destroy()
#clean-up slave logger
self._log_ctl.remove_slave(m_id)
machine.set_mapped(False)
self._machines.clear()
# remove dynamically created bridges
for bridge in list(self._network_bridges.values()):
bridge.cleanup()
self._network_bridges = {}
def _run(self):
os.setpgrp()
signal.signal(signal.SIGHUP, signal.SIG_DFL)
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
self._log_ctl.disable_logging()
self._log_ctl.set_connection(self._child_pipe)
result = {}
try:
self._job_cls.run()
except:
log_exc_traceback()
type, value, tb = sys.exc_info()
data = {"Exception": "%s" % value}
# self._job_cls.set_fail(data)
finally:
res_data = self._job_cls.get_result()
result["type"] = "job_finished"
result["job_id"] = self._id
result["result"] = res_data
send_data(self._child_pipe, result)
self._child_pipe.close()
def _process_msg(self, msg):
if msg["type"] == "command":
method = getattr(self._methods, msg["method_name"], None)
if method != None:
try:
result = method(*msg["args"])
except:
log_exc_traceback()
type, value, tb = sys.exc_info()
exc_trace = ''.join(traceback.format_exception(type,
value, tb))
response = {"type": "exception", "Exception": exc_trace}
self._server_handler.send_data_to_ctl(response)
return
if result != None:
response = {"type": "result", "result": result}
self._server_handler.send_data_to_ctl(response)
else:
err = "Method '%s' not supported." % msg["method_name"]
response = {"type": "error", "err": err}
self._server_handler.send_data_to_ctl(response)
elif msg["type"] == "log":
logger = logging.getLogger()
record = logging.makeLogRecord(msg["record"])
logger.handle(record)
elif msg["type"] == "exception":
if msg["cmd_id"] != None:
logging.debug("Recieved an exception from command with id: %s"
% msg["cmd_id"])
else:
logging.debug("Recieved an exception from foreground command")
logging.error(msg["Exception"])
cmd = self._cmd_context.get_cmd(msg["cmd_id"])
cmd.join()
self._cmd_context.del_cmd(cmd)
self._server_handler.send_data_to_ctl(msg)
elif msg["type"] == "result":
if msg["cmd_id"] == None:
del msg["cmd_id"]
self._server_handler.send_data_to_ctl(msg)
cmd = self._cmd_context.get_cmd(None)
cmd.join()
self._cmd_context.del_cmd(cmd)
else:
cmd = self._cmd_context.get_cmd(msg["cmd_id"])
cmd.join()
del msg["cmd_id"]
if cmd.finished():
self._server_handler.send_data_to_ctl(msg)
self._cmd_context.del_cmd(cmd)
else:
cmd.set_result(msg["result"])
else:
raise Exception("Recieved unknown command")
pipes = self._cmd_context.get_read_pipes()
self._server_handler.update_connections(pipes)
def _create(self):
self._update_attr(self._link_type, "IFLA_LINKINFO", "IFLA_INFO_KIND")
try:
self._nl_link_sync("add", bulk=True)
except Exception as e:
log_exc_traceback()
raise DeviceConfigError("Creating link {} failed: {}".format(
self.name, str(e)))
def obj_setattr(self, obj_ref, name, value):
try:
obj = self._dynamic_objects[obj_ref]
return setattr(obj, name, value)
except LnstError:
raise
except Exception as exc:
log_exc_traceback()
raise LnstError(exc)
def run(self):
try:
self._result["passed"] = self._what["module"].run()
self._result["res_data"] = self._what["module"]._get_res_data()
except Exception as e:
log_exc_traceback()
self._result["passed"] = False
self._result["type"] = "module_exception"
self._result["res_data"] = {"exception": e}
def obj_method(self, obj_ref, name, args, kwargs):
try:
obj = self._dynamic_objects[obj_ref]
method = getattr(obj, name)
return method(*args, **kwargs)
except LnstError:
raise
except Exception as exc:
log_exc_traceback()
raise LnstError(exc)
def run(self, recipe, **kwargs):
"""Execute the provided Recipe
This method takes care of both finding Agent hosts matching the Recipe
requirements, provisioning them and calling the *test* method of the
Recipe object with proper references to the mapped Hosts
:param recipe:
an instantiated Recipe object
:type recipe: :py:class:`lnst.Controller.Recipe.BaseRecipe`
:param kwargs:
optional keyword arguments passed to the configured Mapper
:type kwargs: Dict[str, Any]
"""
if not isinstance(recipe, BaseRecipe):
raise ControllerError(
"recipe argument must be a BaseRecipe instance.")
recipe_ctl = RecipeControl(self, recipe)
recipe._set_ctl(recipe_ctl)
req = recipe.req
self._mapper.set_pools_manager(self._pools)
self._mapper.set_requirements(req._to_dict())
i = 0
for match in self._mapper.matches(**kwargs):
self._log_ctl.set_recipe(recipe.__class__.__name__,
expand="match_%d" % i)
i += 1
for line in format_match_description(match).split('\n'):
logging.info(line)
try:
self._map_match(match, req, recipe)
recipe._init_run(
RecipeRun(recipe,
match,
log_dir=self._log_ctl.get_recipe_log_path(),
log_list=self._log_ctl.get_recipe_log_list()))
recipe.test()
except Exception as exc:
recipe.current_run.exception = exc
logging.error(
"Recipe execution terminated by unexpected exception")
log_exc_traceback()
raise
finally:
self._cleanup_agents()
def test_wide_deconfiguration(self, config):
try:
self.guest_deconfigure(config.guest)
except:
log_exc_traceback()
try:
config.dut.host.run("ovs-ofctl del-flows br0")
for vm_port, port_id in config.dut.vm_ports:
config.dut.host.run("ovs-vsctl del-port br0 {}".format(vm_port))
for dpdk_port, port_id in config.dut.dpdk_ports:
config.dut.host.run("ovs-vsctl del-port br0 {}".format(dpdk_port))
config.dut.host.run("ovs-vsctl del-br br0")
config.dut.host.run("service openvswitch restart")
self.base_dpdk_deconfiguration(config.dut, ["openvswitch"])
except:
log_exc_traceback()
try:
# returning the guest to the original running state
self.shutdown_guest(config.guest)
config.guest.virtctl.vm_start(config.guest.name)
except:
log_exc_traceback()
try:
for nic in config.generator.nics:
config.generator.host.run(
"driverctl unset-override {}".format(nic.bus_info))
config.generator.host.run("service irqbalance start")
except:
log_exc_traceback()
def run(self):
while not self._finished:
if self._server_handler.get_ctl_sock() == None:
self._log_ctl.cancel_connection()
try:
logging.info("Waiting for connection.")
self._server_handler.accept_connection()
except (socket.error, SecSocketException):
log_exc_traceback()
continue
self._log_ctl.set_connection(
self._server_handler.get_ctl_sock())
msgs = self._server_handler.get_messages()
for msg in msgs:
self._process_msg(msg[1])
self._methods.machine_cleanup()
def run(self, recipe, **kwargs):
"""Execute the provided Recipe
This method takes care of both finding a Slave hosts matching the Recipe
requirements, provisioning them and calling the 'test' method of the
Recipe object with proper references to the mapped Hosts
Args:
recipe -- an instantiated Recipe object (isinstance BaseRecipe)
kwargs -- optional keyword arguments passed to the configured Mapper
"""
if not isinstance(recipe, BaseRecipe):
raise ControllerError(
"recipe argument must be a BaseRecipe instance.")
req = recipe.req
self._mapper.set_pools(self._pools.get_pools())
self._mapper.set_requirements(req._to_dict())
i = 0
for match in self._mapper.matches(**kwargs):
self._log_ctl.set_recipe(recipe.__class__.__name__,
expand="match_%d" % i)
i += 1
self._print_match_description(match)
self._map_match(match, req)
try:
recipe._set_hosts(self._hosts)
recipe.test()
except Exception as exc:
logging.error(
"Recipe execution terminated by unexpected exception")
log_exc_traceback()
raise
finally:
recipe._set_hosts(None)
for machine in self._machines.values():
machine.restore_system_config()
self._cleanup_slaves()
def _ipr_wrapper(self, obj_name, op_name, *args, **kwargs):
pretty_attrs = pprint.pformat({"args": args, "kwargs": kwargs})
logging.debug(
"Performing pyroute.IPRoute().{}({}, *args, **kwargs)".format(
obj_name, op_name))
logging.debug("{}".format(pretty_attrs))
ret_val = None
with pyroute2.IPRoute() as ipr:
try:
obj = getattr(ipr, obj_name)
if op_name is not None:
ret_val = obj(op_name, *args, **kwargs)
else:
ret_val = obj(*args, **kwargs)
self._if_manager.rescan_devices()
except Exception as e:
log_exc_traceback()
raise DeviceConfigError(
"Object {} operation {} on link {} failed: {}".format(
obj_name, op_name, self.name, str(e)))
return ret_val
def test_wide_deconfiguration(self, config):
try:
self.guest_deconfigure(config.guest)
except:
log_exc_traceback()
try:
self.host_forwarding_vm_deconfiguration(config.dut, config.guest)
except:
log_exc_traceback()
try:
self.host_forwarding_deconfiguration(config.dut)
except:
log_exc_traceback()
try:
self.base_dpdk_deconfiguration(config.generator)
except:
log_exc_traceback()
try:
#returning the guest to the original running state
self.shutdown_guest(config.guest)
if config.guest.virtctl:
config.guest.virtctl.vm_start(config.guest.name)
except:
log_exc_traceback()
try:
config.generator.host.run("service irqbalance start")
except:
log_exc_traceback()
def bus_info(self):
try:
return ethtool.get_businfo(self.name)
except IOError as e:
log_exc_traceback()
return ""
def createXML(self, xml, flags=0):
try:
self._libvirt_conn.createXML(xml, flags)
except:
log_exc_traceback()
def vm_shutdown(self, name):
vm = self._libvirt_conn.lookupByName(name)
try:
vm.shutdown()
except:
log_exc_traceback()
def vm_destroy(self, name):
vm = self._libvirt_conn.lookupByName(name)
try:
vm.destroy()
except:
log_exc_traceback()
def _dispatch(self, method, params):
try:
return SimpleXMLRPCServer._dispatch(self, method, params)
except Exception as err:
log_exc_traceback()
raise xmlrpclib.Fault(1, str(err))
def _process_msg(self, msg):
if msg["type"] == "command":
method = getattr(self._methods, msg["method_name"], None)
if method != None:
if_manager = self._methods._if_manager
if if_manager is not None:
args = deviceref_to_device(if_manager, msg["args"])
kwargs = deviceref_to_device(if_manager, msg["kwargs"])
else:
args = msg["args"]
kwargs = msg["kwargs"]
try:
result = method(*args, **kwargs)
except LnstError as e:
log_exc_traceback()
response = {"type": "exception", "Exception": e}
self._server_handler.send_data_to_ctl(response)
return
response = {"type": "result", "result": result}
response = device_to_deviceref(response)
self._server_handler.send_data_to_ctl(response)
else:
err = LnstError("Method '%s' not supported." % msg["method_name"])
response = {"type": "exception", "Exception": err}
self._server_handler.send_data_to_ctl(response)
elif msg["type"] == "log":
logger = logging.getLogger()
record = logging.makeLogRecord(msg["record"])
logger.handle(record)
elif msg["type"] == "exception":
if msg["cmd_id"] != None:
logging.debug("Recieved an exception from command with id: %s"
% msg["cmd_id"])
else:
logging.debug("Recieved an exception from foreground command")
logging.debug(msg["Exception"])
job = self._job_context.get_cmd(msg["job_id"])
job.join()
self._job_context.del_cmd(job)
self._server_handler.send_data_to_ctl(msg)
elif msg["type"] == "job_finished":
job = self._job_context.get_job(msg["job_id"])
job.join()
job.set_finished(msg["result"])
self._server_handler.send_data_to_ctl(msg)
self._job_context.del_job(job)
elif msg["type"] == "from_netns":
self._server_handler.send_data_to_ctl(msg["data"])
elif msg["type"] == "to_netns":
netns = msg["netns"]
try:
self._server_handler.send_data_to_netns(netns, msg["data"])
except LnstError as e:
log_exc_traceback()
response = {"type": "exception", "Exception": e}
self._server_handler.send_data_to_ctl(response)
return
else:
raise Exception("Recieved unknown command")
pipes = self._job_context.get_parent_pipes()
self._server_handler.update_connections(pipes)
def _process_msg(self, msg):
if msg["type"] == "command":
method = getattr(self._methods, msg["method_name"], None)
if method != None:
try:
result = method(*msg["args"])
except:
log_exc_traceback()
type, value, tb = sys.exc_info()
exc_trace = ''.join(
traceback.format_exception(type, value, tb))
response = {"type": "exception", "Exception": exc_trace}
self._server_handler.send_data_to_ctl(response)
return
if result != None:
response = {"type": "result", "result": result}
self._server_handler.send_data_to_ctl(response)
else:
err = "Method '%s' not supported." % msg["method_name"]
response = {"type": "error", "err": err}
self._server_handler.send_data_to_ctl(response)
elif msg["type"] == "log":
logger = logging.getLogger()
record = logging.makeLogRecord(msg["record"])
logger.handle(record)
elif msg["type"] == "exception":
if msg["cmd_id"] != None:
logging.debug(
"Recieved an exception from command with id: %s" %
msg["cmd_id"])
else:
logging.debug("Recieved an exception from foreground command")
logging.error(msg["Exception"])
cmd = self._cmd_context.get_cmd(msg["cmd_id"])
cmd.join()
self._cmd_context.del_cmd(cmd)
self._server_handler.send_data_to_ctl(msg)
elif msg["type"] == "result":
if msg["cmd_id"] == None:
del msg["cmd_id"]
self._server_handler.send_data_to_ctl(msg)
cmd = self._cmd_context.get_cmd(None)
cmd.join()
self._cmd_context.del_cmd(cmd)
else:
cmd = self._cmd_context.get_cmd(msg["cmd_id"])
cmd.join()
del msg["cmd_id"]
if cmd.finished():
self._server_handler.send_data_to_ctl(msg)
self._cmd_context.del_cmd(cmd)
else:
cmd.set_result(msg["result"])
else:
raise Exception("Recieved unknown command")
pipes = self._cmd_context.get_read_pipes()
self._server_handler.update_connections(pipes)
def _dispatch(self, method, params):
try:
return SimpleXMLRPCServer._dispatch(self, method, params)
except Exception as err:
log_exc_traceback()
raise xmlrpclib.Fault(1, str(err))
