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Added file logging and a new parameter (-s) for logging to stdout.

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This commit is contained in:
Johannes Findeisen 2022-09-29 02:59:40 +02:00
commit dbb0e23091
5 changed files with 66 additions and 18 deletions
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20
linspector/core/linspectord.py
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@ -14,6 +14,7 @@ from logging import getLogger
logger = getLogger('linspector')
# TODO: there is a bug when stopping the daemon. the pid_file is not being deleted. NEEDS A FIX!
class Linspectord:
def __init__(self, configuration, environment, linspector):
@ -23,7 +24,7 @@ class Linspectord:
try:
self.__pid_file = configuration.get_option('linspector', 'pid_file')
except Exception as err:
logger.error(str('daemonize error (no pid_file set): {0}'.format(err)))
logger.critical(str('daemonize error (no pid_file set): {0}'.format(err)))
def daemonize(self):
# daemonize the class using the UNIX double fork mechanism.
@ -35,7 +36,7 @@ class Linspectord:
# exit first parent.
sys.exit(0)
except OSError as err:
logger.error(str('fork #1 failed: {0}'.format(err)))
logger.critical(str('fork #1 failed: {0}'.format(err)))
sys.exit(1)
# decouple from parent environment.
@ -50,7 +51,7 @@ class Linspectord:
# Exit from second parent.
sys.exit(0)
except OSError as err:
logger.error(str('fork #2 failed: {0}'.format(err)))
logger.critical(str('fork #2 failed: {0}'.format(err)))
sys.exit(1)
# redirect standard file descriptors.
@ -76,7 +77,7 @@ class Linspectord:
def start(self):
# start the daemon. check for a pidfile to see if the daemon already runs before.
logger.info('starting daemon using pid_file: ' + self.__pid_file)
try:
with open(self.__pid_file, 'r') as pf:
pid = int(pf.read().strip())
@ -85,7 +86,7 @@ class Linspectord:
if pid:
message = 'pid_file {0} already exist. daemon already running?'
logger.error(str(message.format(self.__pid_file)))
logger.critical(str(message.format(self.__pid_file)))
sys.exit(1)
# start the daemon.
@ -94,7 +95,7 @@ class Linspectord:
def stop(self):
# stop the daemon.
logger.info('stopping daemon using pid_file: ' + self.__pid_file)
# get the pid from the pid file.
try:
with open(self.__pid_file, 'r') as pf:
@ -118,15 +119,18 @@ class Linspectord:
if os.path.exists(self.__pid_file):
os.remove(self.__pid_file)
else:
logger.error(str(err.args))
logger.critical(str(err.args))
sys.exit(1)
def restart(self):
# restart the daemon.
logger.info('restarting daemon using pid_file: ' + self.__pid_file)
self.stop()
self.start()
# maybe this function can be removed in the future because Linspector should rund endless when
# starting scheduled jobs. need to cover this in the future. for now, it is useful for testing
# while development because the daemon even runs when internally is nothing to do.
@staticmethod
def run():
while True: