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Add some metrics using to the ntpd helper script using the "request value"[0] command. [0]: https://www.eecis.udel.edu/~mills/ntp/html/ntpq.html#system
123 lines
3.4 KiB
Python
Executable File
123 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Description: Extract NTPd metrics from ntpq -np.
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# Author: Ben Kochie <superq@gmail.com>
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import re
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import subprocess
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import sys
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# NTP peers status, with no DNS lookups.
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ntpq_cmd = ['ntpq', '-np']
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ntpq_rv_cmd = ['ntpq', '-c', 'rv 0 offset,sys_jitter,rootdisp,rootdelay']
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# Regex to match all of the fields in the output of ntpq -np
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metrics_fields = [
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'^(?P<status>.)(?P<remote>[\w\.]+)',
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'(?P<refid>[\w\.]+)',
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'(?P<stratum>\d+)',
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'(?P<type>\w)',
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'(?P<when>\d+)',
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'(?P<poll>\d+)',
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'(?P<reach>\d+)',
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'(?P<delay>\d+\.\d+)',
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'(?P<offset>-?\d+\.\d+)',
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'(?P<jitter>\d+\.\d+)',
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]
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metrics_re = '\s+'.join(metrics_fields)
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# Remote types
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# http://support.ntp.org/bin/view/Support/TroubleshootingNTP
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remote_types = {
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'l': 'local',
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'u': 'unicast',
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'm': 'multicast',
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'b': 'broadcast',
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'-': 'netaddr',
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}
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# Status codes:
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# http://www.eecis.udel.edu/~mills/ntp/html/decode.html#peer
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status_types = {
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' ': 0,
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'x': 1,
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'.': 2,
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'-': 3,
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'+': 4,
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'#': 5,
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'*': 6,
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'o': 7,
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}
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# Run the ntpq command.
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def get_output(command):
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try:
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output = subprocess.check_output(command, stderr=subprocess.DEVNULL)
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except subprocess.CalledProcessError as e:
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return None
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return output.decode()
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# Print metrics in Prometheus format.
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def print_prometheus(metric, values):
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print("# HELP ntpd_%s NTPd metric for %s" % (metric, metric))
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print("# TYPE ntpd_%s gauge" % (metric))
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for labels in values:
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if labels is None:
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print("ntpd_%s %f" % (metric, values[labels]))
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else:
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print("ntpd_%s{%s} %f" % (metric, labels, values[labels]))
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# Parse raw ntpq lines.
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def parse_line(line):
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if re.match('\s+remote\s+refid', line):
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return None
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if re.match('=+', line):
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return None
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if re.match('.+\.(LOCL|POOL)\.', line):
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return None
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if re.match('^$', line):
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return None
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return re.match(metrics_re, line)
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# Main function
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def main(argv):
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ntpq = get_output(ntpq_cmd)
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peer_status_metrics = {}
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delay_metrics = {}
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offset_metrics = {}
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jitter_metrics = {}
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for line in ntpq.split('\n'):
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metric_match = parse_line(line)
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if metric_match is None:
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continue
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remote = metric_match.group('remote')
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refid = metric_match.group('refid')
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stratum = metric_match.group('stratum')
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remote_type = remote_types[metric_match.group('type')]
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common_labels = "remote=\"%s\",reference=\"%s\"" % (remote, refid)
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peer_labels = "%s,stratum=\"%s\",type=\"%s\"" % (common_labels, stratum, remote_type)
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peer_status_metrics[peer_labels] = float(status_types[metric_match.group('status')])
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delay_metrics[common_labels] = float(metric_match.group('delay'))
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offset_metrics[common_labels] = float(metric_match.group('offset'))
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jitter_metrics[common_labels] = float(metric_match.group('jitter'))
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print_prometheus('peer_status', peer_status_metrics)
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print_prometheus('delay_milliseconds', delay_metrics)
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print_prometheus('offset_milliseconds', offset_metrics)
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print_prometheus('jitter_milliseconds', jitter_metrics)
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ntpq_rv = get_output(ntpq_rv_cmd)
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for metric in ntpq_rv.split(','):
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metric_name, metric_value = metric.strip().split('=')
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print_prometheus(metric_name, {None: float(metric_value)})
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# Go go go!
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if __name__ == "__main__":
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main(sys.argv[1:])
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