mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-03 15:31:05 +01:00
58c10628d8
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
|
|
#
|
|
# Description: Extract NTPd metrics from ntpq -np.
|
|
# Author: Ben Kochie <superq@gmail.com>
|
|
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
|
|
# NTP peers status, with no DNS lookups.
|
|
ntpq_cmd = ['ntpq', '-np']
|
|
ntpq_rv_cmd = ['ntpq', '-c', 'rv 0 offset,sys_jitter,rootdisp,rootdelay']
|
|
|
|
# Regex to match all of the fields in the output of ntpq -np
|
|
metrics_fields = [
|
|
'^(?P<status>.)(?P<remote>[\w\.]+)',
|
|
'(?P<refid>[\w\.]+)',
|
|
'(?P<stratum>\d+)',
|
|
'(?P<type>\w)',
|
|
'(?P<when>\d+)',
|
|
'(?P<poll>\d+)',
|
|
'(?P<reach>\d+)',
|
|
'(?P<delay>\d+\.\d+)',
|
|
'(?P<offset>-?\d+\.\d+)',
|
|
'(?P<jitter>\d+\.\d+)',
|
|
]
|
|
metrics_re = '\s+'.join(metrics_fields)
|
|
|
|
# Remote types
|
|
# http://support.ntp.org/bin/view/Support/TroubleshootingNTP
|
|
remote_types = {
|
|
'l': 'local',
|
|
'u': 'unicast',
|
|
'm': 'multicast',
|
|
'b': 'broadcast',
|
|
'-': 'netaddr',
|
|
}
|
|
|
|
# Status codes:
|
|
# http://www.eecis.udel.edu/~mills/ntp/html/decode.html#peer
|
|
status_types = {
|
|
' ': 0,
|
|
'x': 1,
|
|
'.': 2,
|
|
'-': 3,
|
|
'+': 4,
|
|
'#': 5,
|
|
'*': 6,
|
|
'o': 7,
|
|
}
|
|
|
|
|
|
# Run the ntpq command.
|
|
def get_output(command):
|
|
try:
|
|
output = subprocess.check_output(command, stderr=subprocess.DEVNULL)
|
|
except subprocess.CalledProcessError as e:
|
|
return None
|
|
return output.decode()
|
|
|
|
|
|
# Print metrics in Prometheus format.
|
|
def print_prometheus(metric, values):
|
|
print("# HELP ntpd_%s NTPd metric for %s" % (metric, metric))
|
|
print("# TYPE ntpd_%s gauge" % (metric))
|
|
for labels in values:
|
|
if labels is None:
|
|
print("ntpd_%s %f" % (metric, values[labels]))
|
|
else:
|
|
print("ntpd_%s{%s} %f" % (metric, labels, values[labels]))
|
|
|
|
|
|
# Parse raw ntpq lines.
|
|
def parse_line(line):
|
|
if re.match('\s+remote\s+refid', line):
|
|
return None
|
|
if re.match('=+', line):
|
|
return None
|
|
if re.match('.+\.(LOCL|POOL)\.', line):
|
|
return None
|
|
if re.match('^$', line):
|
|
return None
|
|
return re.match(metrics_re, line)
|
|
|
|
|
|
# Main function
|
|
def main(argv):
|
|
ntpq = get_output(ntpq_cmd)
|
|
peer_status_metrics = {}
|
|
delay_metrics = {}
|
|
offset_metrics = {}
|
|
jitter_metrics = {}
|
|
for line in ntpq.split('\n'):
|
|
metric_match = parse_line(line)
|
|
if metric_match is None:
|
|
continue
|
|
remote = metric_match.group('remote')
|
|
refid = metric_match.group('refid')
|
|
stratum = metric_match.group('stratum')
|
|
remote_type = remote_types[metric_match.group('type')]
|
|
common_labels = "remote=\"%s\",reference=\"%s\"" % (remote, refid)
|
|
peer_labels = "%s,stratum=\"%s\",type=\"%s\"" % (common_labels, stratum, remote_type)
|
|
|
|
peer_status_metrics[peer_labels] = float(status_types[metric_match.group('status')])
|
|
delay_metrics[common_labels] = float(metric_match.group('delay'))
|
|
offset_metrics[common_labels] = float(metric_match.group('offset'))
|
|
jitter_metrics[common_labels] = float(metric_match.group('jitter'))
|
|
|
|
print_prometheus('peer_status', peer_status_metrics)
|
|
print_prometheus('delay_milliseconds', delay_metrics)
|
|
print_prometheus('offset_milliseconds', offset_metrics)
|
|
print_prometheus('jitter_milliseconds', jitter_metrics)
|
|
|
|
ntpq_rv = get_output(ntpq_rv_cmd)
|
|
for metric in ntpq_rv.split(','):
|
|
metric_name, metric_value = metric.strip().split('=')
|
|
print_prometheus(metric_name, {None: float(metric_value)})
|
|
|
|
|
|
# Go go go!
|
|
if __name__ == "__main__":
|
|
main(sys.argv[1:])
|