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