def passes_checks(self):
"""Return True if the process exists."""
process = subprocess.Popen(['ps', '-A'], stdout=subprocess.PIPE)
output, error = process.communicate()
if error:
return False
for line in output.splitlines():
if self.pattern.upper() in line.upper():
LOGGER.info('[{}] passed check.'.format(self.name, self.description))
return True
LOGGER.error('[{}] is NOT currently running.'.format(self.name, self.description))
return False
def check_web_applications(web_applications):
"""Loop forever, checking the status of *web_applications* every
5 seconds."""
LOGGER.info('Beginning web application checks')
while True:
for application in web_applications:
LOGGER.info('Starting check for process [{}]'.format(
application.name))
if not application.passes_checks():
LOGGER.error('Process [{}] failed status check'.format(
application.name))
else:
LOGGER.info('Process [{}] passed status check'.format(
application.name))
time.sleep(5)
def check_web_applications(web_applications):
"""Loop forever, checking the status of *web_applications* every
5 seconds."""
LOGGER.info('Beginning web application checks')
while True:
for application in web_applications:
LOGGER.info(
'Starting check for process [{}]'.format(application.name))
if not application.passes_checks():
LOGGER.error(
'Process [{}] failed status check'.format(
application.name))
else:
LOGGER.info(
'Process [{}] passed status check'.format(
application.name))
time.sleep(5)
def check_processes(processes):
"""Loop forever, checking the status of *processes* every 5 seconds."""
LOGGER.info('Beginning process checks')
failed_processes = set()
suppress_email = False
while True:
for process in processes:
if process in failed_processes:
suppress_email = True
LOGGER.info('Starting check for process [{}]'.format(process.name))
if not process.passes_checks(suppress_email):
LOGGER.error('Process [{}] failed status check'.format(
process.name))
failed_processes.add(process)
else:
LOGGER.info('Process [{}] passed status check'.format(
process.name))
if process in failed_processes:
del failed_processes[process]
time.sleep(5)
def check_processes(processes):
"""Loop forever, checking the status of *processes* every 5 seconds."""
LOGGER.info('Beginning process checks')
failed_processes = set()
suppress_email = False
while True:
for process in processes:
if process in failed_processes:
suppress_email = True
LOGGER.info('Starting check for process [{}]'.format(process.name))
if not process.passes_checks(suppress_email):
LOGGER.error('Process [{}] failed status check'.format(
process.name))
failed_processes.add(process)
else:
LOGGER.info('Process [{}] passed status check'.format(
process.name))
if process in failed_processes:
del failed_processes[process]
time.sleep(5)
