119 lines
3.5 KiB
Python
119 lines
3.5 KiB
Python
# -*- coding: utf-8 -*-
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# Description: chrony netdata python.d module
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# Author: Dominik Schloesser (domschl)
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# SPDX-License-Identifier: GPL-3.0-or-later
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from bases.FrameworkServices.ExecutableService import ExecutableService
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# default module values (can be overridden per job in `config`)
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update_every = 5
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CHRONY_COMMAND = 'chronyc -n tracking'
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# charts order (can be overridden if you want less charts, or different order)
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ORDER = [
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'system',
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'offsets',
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'stratum',
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'root',
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'frequency',
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'residualfreq',
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'skew',
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]
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CHARTS = {
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'system': {
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'options': [None, 'Chrony System Time Deltas', 'microseconds', 'system', 'chrony.system', 'area'],
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'lines': [
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['timediff', 'system time', 'absolute', 1, 1000]
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]
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},
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'offsets': {
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'options': [None, 'Chrony System Time Offsets', 'microseconds', 'system', 'chrony.offsets', 'area'],
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'lines': [
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['lastoffset', 'last offset', 'absolute', 1, 1000],
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['rmsoffset', 'RMS offset', 'absolute', 1, 1000]
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]
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},
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'stratum': {
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'options': [None, 'Chrony Stratum', 'stratum', 'root', 'chrony.stratum', 'line'],
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'lines': [
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['stratum', None, 'absolute', 1, 1]
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]
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},
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'root': {
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'options': [None, 'Chrony Root Delays', 'milliseconds', 'root', 'chrony.root', 'line'],
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'lines': [
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['rootdelay', 'delay', 'absolute', 1, 1000000],
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['rootdispersion', 'dispersion', 'absolute', 1, 1000000]
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]
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},
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'frequency': {
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'options': [None, 'Chrony Frequency', 'ppm', 'frequencies', 'chrony.frequency', 'area'],
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'lines': [
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['frequency', None, 'absolute', 1, 1000]
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]
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},
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'residualfreq': {
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'options': [None, 'Chrony Residual frequency', 'ppm', 'frequencies', 'chrony.residualfreq', 'area'],
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'lines': [
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['residualfreq', 'residual frequency', 'absolute', 1, 1000]
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]
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},
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'skew': {
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'options': [None, 'Chrony Skew, error bound on frequency', 'ppm', 'frequencies', 'chrony.skew', 'area'],
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'lines': [
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['skew', None, 'absolute', 1, 1000]
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]
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}
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}
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CHRONY = [
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('Frequency', 'frequency', 1e3),
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('Last offset', 'lastoffset', 1e9),
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('RMS offset', 'rmsoffset', 1e9),
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('Residual freq', 'residualfreq', 1e3),
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('Root delay', 'rootdelay', 1e9),
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('Root dispersion', 'rootdispersion', 1e9),
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('Skew', 'skew', 1e3),
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('Stratum', 'stratum', 1),
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('System time', 'timediff', 1e9)
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]
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class Service(ExecutableService):
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def __init__(self, configuration=None, name=None):
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ExecutableService.__init__(
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self, configuration=configuration, name=name)
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self.order = ORDER
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self.definitions = CHARTS
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self.command = CHRONY_COMMAND
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def _get_data(self):
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"""
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Format data received from shell command
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:return: dict
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"""
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raw_data = self._get_raw_data()
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if not raw_data:
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return None
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raw_data = (line.split(':', 1) for line in raw_data)
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parsed, data = dict(), dict()
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for line in raw_data:
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try:
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key, value = (l.strip() for l in line)
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except ValueError:
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continue
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if value:
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parsed[key] = value.split()[0]
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for key, dim_id, multiplier in CHRONY:
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try:
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data[dim_id] = int(float(parsed[key]) * multiplier)
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except (KeyError, ValueError):
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continue
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return data or None
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