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Mini Shell
Mini Shell
#!/usr/libexec/platform-python
import argparse
import csv
import io
import os
import platform
import socket
import subprocess
import sys
def main(args):
# os_family = platform.linux_distribution()[0]
if args.daemon == 'chronyc':
if args.resource == 'leap_status':
chronyc_monitoring = chronycTracking()
resultToIcinga(chronyc_monitoring)
elif args.resource == 'sources':
sources_monitoring = chronycSources('sources')
resultToIcinga(sources_monitoring)
elif args.resource == 'falseticker':
sources_monitoring = chronycSources('falseticker')
resultToIcinga(sources_monitoring)
elif args.daemon == 'systemd-timesyncd':
if args.resource == 'leap_status':
timesyncd_monitoring = timedatectlStatus()
resultToIcinga(timesyncd_monitoring)
else:
print('Unsupported systemd-timesyncd resource. Supported resources: leap_status')
sys.exit(3)
def chronycMonitor(chronyc_command):
chronyc_stdout = subprocess.Popen([ 'chronyc', '-c', chronyc_command ], stdout=subprocess.PIPE)
chronyc_o = io.TextIOWrapper(chronyc_stdout.stdout, newline=os.linesep)
chronyc_o_csv = csv.reader((line for line in chronyc_o), delimiter=',')
return list(chronyc_o_csv)
def chronycSources(chk_resource):
# TODO: Support thresholds from the cmd line
chronyc_status = chronycMonitor('sources')
chronyc_sources = len(chronyc_status)
sources_out = {}
sources_out['service'] = {}
sources_out['perfd'] = {}
if chk_resource == 'falseticker':
falseticker_msg = 'All of the configured sources are falseticker'
falseticker_status = 2
falseticker_cnt = 0
elif chk_resource == 'sources':
c_sources_msg = 'No synced source.'
c_sources_status = 2
c_sources_available = 0
c_sources_unavailable = 0
c_sources_synchronized = 0
c_sources_unreliable = 0
sources_configured = 0
for s in chronyc_status:
s_status = s[1]
s_host = s[2]
sources_configured += 1
if chk_resource == 'falseticker':
if s_status in ('x'):
falseticker_cnt += 1
elif chk_resource == 'sources':
if s_status in ('+', '-', '*'):
c_sources_available += 1
if s_status == '*':
c_sources_synchronized += 1
elif s_status in ('?'):
c_sources_unavailable += 1
elif s_status in ('~'):
c_sources_unreliable += 1
if chk_resource == 'falseticker':
if falseticker_cnt == 0:
falseticker_status = 0
falseticker_msg = 'No falseticker found'
elif falseticker_cnt < sources_configured:
falseticker_status = 1
falseticker_msg = '{} falseticker found'.format(falseticker_cnt)
r_name = 'NTP Falseticker Status'
r_status = falseticker_status
r_msg = falseticker_msg
elif chk_resource == 'sources':
r_name = 'NTP Sources Status'
if c_sources_unavailable <= sources_configured // 2:
if c_sources_synchronized > 0:
c_sources_status = 0
c_sources_msg = '{} out of {} sources are available; {} synchronized source'.format(c_sources_available, sources_configured, c_sources_synchronized)
elif c_sources_unavailable <= sources_configured - 1:
if c_sources_synchronized > 0:
c_sources_status = 1
c_sources_msg = '{} out of {} sources are available; {} synchronized source'.format(c_sources_available, sources_configured, c_sources_synchronized)
r_name = 'NTP Sources Status'
r_status = c_sources_status
r_msg = c_sources_msg
sources_out['service']['name'] = r_name
sources_out['service']['state'] = r_status
sources_out['service']['msg'] = r_msg
if chk_resource == 'falseticker':
sources_out['perfd']['falseticker_sources'] = {}
sources_out['perfd']['falseticker_sources']['value'] = falseticker_cnt
sources_out['perfd']['falseticker_sources']['max'] = sources_configured
sources_out['perfd']['falseticker_sources']['crit'] = sources_configured
sources_out['perfd']['configured_sources'] = {}
sources_out['perfd']['configured_sources']['value'] = sources_configured
sources_out['perfd']['configured_sources']['max'] = sources_configured
elif chk_resource == 'sources':
sources_out['perfd']['available_sources'] = {}
sources_out['perfd']['available_sources']['value'] = c_sources_available
sources_out['perfd']['available_sources']['max'] = sources_configured
sources_out['perfd']['available_sources']['warn'] = sources_configured // 2
sources_out['perfd']['available_sources']['crit'] = 0
sources_out['perfd']['synchronized_sources'] = {}
sources_out['perfd']['synchronized_sources']['value'] = c_sources_synchronized
sources_out['perfd']['synchronized_sources']['max'] = sources_configured
sources_out['perfd']['unavailable_sources'] = {}
sources_out['perfd']['unavailable_sources']['value'] = c_sources_unavailable
sources_out['perfd']['unavailable_sources']['max'] = sources_configured
sources_out['perfd']['unavailable_sources']['warn'] = sources_configured // 2
sources_out['perfd']['unavailable_sources']['crit'] = sources_configured - 1
sources_out['perfd']['unreliable_sources'] = {}
sources_out['perfd']['unreliable_sources']['value'] = c_sources_unreliable
sources_out['perfd']['unreliable_sources']['max'] = sources_configured
sources_out['perfd']['configured_sources'] = {}
sources_out['perfd']['configured_sources']['value'] = sources_configured
sources_out['perfd']['configured_sources']['max'] = sources_configured
return sources_out
def chronycTracking():
chronyc_status = chronycMonitor('tracking')
leap_status = 0 if chronyc_status[0][13] == 'Normal' else 1
system_time = chronyc_status[0][4]
root_delay = chronyc_status[0][10]
root_dispersion = chronyc_status[0][11]
max_estimated_error = float(system_time) + float(root_dispersion) / 2 + float(root_dispersion)
tracking_out = {}
tracking_out['service'] = {}
tracking_out['perfd'] = {}
tracking_msg = 'System clock is not in sync'
tracking_status = 2
if leap_status == 0:
tracking_status = 0
tracking_msg = 'System clock is in sync.'
tracking_out['service']['name'] = 'Leap Status'
tracking_out['service']['state'] = tracking_status
tracking_out['service']['msg'] = tracking_msg
tracking_out['perfd']['leap_status'] = {}
tracking_out['perfd']['leap_status']['value'] = leap_status
tracking_out['perfd']['leap_status']['max'] = 2
tracking_out['perfd']['leap_status']['crit'] = 2
tracking_out['perfd']['max_estimated_error'] = {}
tracking_out['perfd']['max_estimated_error']['value'] = max_estimated_error
return tracking_out
def timedatectlStatus():
tdctl_stdout = subprocess.Popen(['timedatectl', 'status'], stdout=subprocess.PIPE)
tdctl_out = {}
tdctl_out['service'] = {}
tdctl_out['perfd'] = {}
tdctl_msg = 'System clock is not in sync.'
tdctl_status = 2
for line in io.TextIOWrapper(tdctl_stdout.stdout, encoding='UTF-8'):
if line.lstrip().startswith('NTP synchronized'):
# if line.split(': ')[1] == 'yes\n':
if 'yes' in line.split(': ')[1]:
tdctl_status = 0
elif line.lstrip().startswith('System clock synchronized'):
# if line.split(': ')[1] == 'yes\n':
if 'yes' in line.split(': ')[1]:
tdctl_status = 0
if tdctl_status == 0:
tdctl_msg = 'System clock is in sync'
tdctl_out['service']['name'] = 'Leap Status'
tdctl_out['service']['state'] = tdctl_status
tdctl_out['service']['msg'] = tdctl_msg
tdctl_out['perfd']['leap_status'] = {}
tdctl_out['perfd']['leap_status']['value'] = tdctl_status
tdctl_out['perfd']['leap_status']['max'] = 2
tdctl_out['perfd']['leap_status']['crit'] = 2
return tdctl_out
def resultToIcinga(svc_result):
svc_dict = svc_result['service']
chk_name = svc_dict['name']
chk_state = svc_dict['state']
chk_msg = svc_dict['msg']
if chk_state == 0:
chk_state_str = 'OK'
elif chk_state == 1:
chk_state_str = 'WARNING'
elif chk_state == 2:
chk_state_str = 'CRITICAL'
elif chk_state == 3:
chk_state_str = 'UNKNOWN'
else:
chk_state = 2
chk_state_str = 'Invalid check result'
if 'perfd' in svc_result:
pdata_str = None
for k, v in svc_result['perfd'].items():
if 'value' not in v:
# invalid perfdata, missing value; do not process it
continue
label = k
pd_substr = '{0}={1}'.format(label, v['value'])
# set sane defaults for min, max, warn & crit as fallback
if 'min' not in v:
pd_substr = ';'.join([pd_substr, '0'])
else:
pd_substr = ';'.join([pd_substr, str(v['min'])])
if 'max' not in v:
pd_substr = ';'.join([pd_substr, ''])
else:
pd_substr = ';'.join([pd_substr, str(v['max'])])
if 'warn' not in v:
pd_substr = ';'.join([pd_substr, ''])
else:
pd_substr = ';'.join([pd_substr, str(v['warn'])])
if 'crit' not in v:
pd_substr = ';'.join([pd_substr, ''])
else:
pd_substr = ';'.join([pd_substr, str(v['crit'])])
if not pdata_str:
pdata_str = pd_substr
else:
pdata_str = ' '.join([pdata_str, pd_substr])
chk_output = '{0} {1} - {2} | {3}'.format(chk_name.upper(), chk_state_str, chk_msg, pdata_str)
print(chk_output)
if chk_state == 0:
sys.exit(0)
elif chk_state == 1:
sys.exit(1)
elif chk_state == 2:
sys.exit(2)
else:
sys.exit(3)
def parseArgs():
argParser = argparse.ArgumentParser(description='Check the chronyc or systemd-timesyncd sync status.')
argParser.add_argument('-d', '--daemon', dest='daemon', required=True, type=str, \
choices=[ 'chronyc', 'systemd-timesyncd' ], \
help='Monitored daemon.')
argParser.add_argument('-r', '--resource', dest='resource', type=str, default='leap_status', \
choices=[ 'leap_status', 'sources', 'falseticker' ], \
help='Checked resource. \
Supported options for chronyc: leap_status, sources, falseticker. \
Supported options for systemd-timesyncd: leap_status')
return argParser.parse_args()
if __name__ == "__main__":
args = parseArgs()
main(args)
Zerion Mini Shell 1.0