def start(config_loc, watch):
""" Starts a watch on god given a configuration file. Deletes
the configuration after it is used.
Args:
config_loc: The location of the god configuration file
watch: Name of the watch being started
Returns:
True on success, False otherwise
"""
if not misc.is_string_secure(config_loc):
logging.error("Configuration file location str (%s) is a possible security violation"%config_loc)
return False
if not misc.is_string_secure(watch):
logging.error("Watch string (%s) is a possible security violation"%watch)
return False
return_status = subprocess.call(['god', 'load', config_loc])
if return_status != 0:
logging.error("God load command returned with status %d when setting up watch %s"%(int(return_status), str(watch)))
return False
return_status = subprocess.call(['god', 'start', watch])
if return_status != 0:
logging.error("God load command returned with status %d when setting up watch %s"%(return_status, watch))
return False
logging.info("Starting watch %s"%str(watch))
file_io.delete(config_loc)
return True
def stop_app_instance(app_name, port):
""" Stops a Google App Engine application process instance on current
machine.
Args:
app_name: Name of application to stop
port: The port the application is running on
Returns:
True on success, False otherwise
"""
if not misc.is_app_name_valid(app_name):
logging.error("Unable to kill app process %s on port %d because of " +\
"invalid name for application"%(app_name, int(port)))
return False
logging.info("Stopping application %s"%app_name)
watch = "app___" + app_name + "-" + str(port)
god_result = god_interface.stop(watch)
# hack: God fails to shutdown processes so we do it via a system command
# TODO: fix it or find an alternative to god
pid_file = constants.APP_PID_DIR + app_name + '-' + port
pid = file_io.read(pid_file)
if str(port).isdigit():
if subprocess.call(['kill', '-9', pid]) != 0:
logging.error("Unable to kill app process %s on port %d with pid %s"%\
(app_name, int(port), str(pid)))
file_io.delete(pid_file)
return god_result
def stop_app_instance(app_name, port):
""" Stops a Google App Engine application process instance on current
machine.
Args:
app_name: Name of application to stop
port: The port the application is running on
Returns:
True on success, False otherwise
"""
if not misc.is_app_name_valid(app_name):
logging.error("Unable to kill app process %s on port %d because of " +\
"invalid name for application"%(app_name, int(port)))
return False
logging.info("Stopping application %s"%app_name)
watch = "app___" + app_name + "-" + str(port)
god_result = god_interface.stop(watch)
# hack: God fails to shutdown processes so we do it via a system command
# TODO: fix it or find an alternative to god
pid_file = constants.APP_PID_DIR + app_name + '-' + port
pid = file_io.read(pid_file)
if str(port).isdigit():
if subprocess.call(['kill', '-9', pid]) != 0:
logging.error("Unable to kill app process %s on port %d with pid %s"%\
(app_name, int(port), str(pid)))
file_io.delete(pid_file)
return god_result
def remove_config_files(app_id):
""" Removed celery worker and config files.
Args:
app_id: The application identifer.
"""
worker_file = TaskQueueConfig.get_celery_worker_script_path(app_id)
config_file = TaskQueueConfig.get_celery_configuration_path(app_id)
file_io.delete(worker_file)
file_io.delete(config_file)
def remove_config_files(app_id):
""" Removed celery worker and config files.
Args:
app_id: The application identifer.
"""
worker_file = TaskQueueConfig.get_celery_worker_script_path(app_id)
config_file = TaskQueueConfig.get_celery_configuration_path(app_id)
file_io.delete(worker_file)
file_io.delete(config_file)
def start(config_loc, watch):
""" Starts a watch on god given a configuration file. Deletes
the configuration after it is used.
Args:
config_loc: The location of the god configuration file
watch: Name of the watch being started
Returns:
True on success, False otherwise
"""
if not misc.is_string_secure(config_loc):
logging.error(
"Configuration file location str (%s) is a possible security violation"
% config_loc)
return False
if not misc.is_string_secure(watch):
logging.error("Watch string (%s) is a possible security violation" %
watch)
return False
return_status = subprocess.call(['god', 'load', config_loc])
if return_status != 0:
logging.error(
"God load command returned with status %d when setting up watch %s"
% (int(return_status), str(watch)))
return False
return_status = subprocess.call(['god', 'start', watch])
if return_status != 0:
logging.error(
"God load command returned with status %d when setting up watch %s"
% (return_status, watch))
return False
logging.info("Starting watch %s" % str(watch))
file_io.delete(config_loc)
return True
