diff options
Diffstat (limited to 'collectors/python.d.plugin/chrony')
| -rw-r--r-- | collectors/python.d.plugin/chrony/Makefile.inc | 13 | ||||
| -rw-r--r-- | collectors/python.d.plugin/chrony/README.md | 61 | ||||
| -rw-r--r-- | collectors/python.d.plugin/chrony/chrony.chart.py | 118 | ||||
| -rw-r--r-- | collectors/python.d.plugin/chrony/chrony.conf | 77 |
4 files changed, 269 insertions, 0 deletions
diff --git a/collectors/python.d.plugin/chrony/Makefile.inc b/collectors/python.d.plugin/chrony/Makefile.inc new file mode 100644 index 0000000..18a805b --- /dev/null +++ b/collectors/python.d.plugin/chrony/Makefile.inc @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-3.0-or-later + +# THIS IS NOT A COMPLETE Makefile +# IT IS INCLUDED BY ITS PARENT'S Makefile.am +# IT IS REQUIRED TO REFERENCE ALL FILES RELATIVE TO THE PARENT + +# install these files +dist_python_DATA += chrony/chrony.chart.py +dist_pythonconfig_DATA += chrony/chrony.conf + +# do not install these files, but include them in the distribution +dist_noinst_DATA += chrony/README.md chrony/Makefile.inc + diff --git a/collectors/python.d.plugin/chrony/README.md b/collectors/python.d.plugin/chrony/README.md new file mode 100644 index 0000000..b1e7ec3 --- /dev/null +++ b/collectors/python.d.plugin/chrony/README.md @@ -0,0 +1,61 @@ +<!-- +title: "Chrony monitoring with Netdata" +custom_edit_url: https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/chrony/README.md +sidebar_label: "Chrony" +--> + +# Chrony monitoring with Netdata + +Monitors the precision and statistics of a local chronyd server, and produces: + +- frequency +- last offset +- RMS offset +- residual freq +- root delay +- root dispersion +- skew +- system time + +## Requirements + +Verify that user Netdata can execute `chronyc tracking`. If necessary, update `/etc/chrony.conf`, `cmdallow`. + +## Enable the collector + +The `chrony` collector is disabled by default. To enable it, use `edit-config` from the Netdata [config +directory](/docs/configure/nodes.md), which is typically at `/etc/netdata`, to edit the `python.d.conf` file. + +```bash +cd /etc/netdata # Replace this path with your Netdata config directory, if different +sudo ./edit-config python.d.conf +``` + +Change the value of the `chrony` setting to `yes`. Save the file and restart the Netdata Agent with `sudo systemctl +restart netdata`, or the appropriate method for your system, to finish enabling the `chrony` collector. + +## Configuration + +Edit the `python.d/chrony.conf` configuration file using `edit-config` from the Netdata [config +directory](/docs/configure/nodes.md), which is typically at `/etc/netdata`. + +```bash +cd /etc/netdata # Replace this path with your Netdata config directory, if different +sudo ./edit-config python.d/chrony.conf +``` + +Sample: + +```yaml +# data collection frequency: +update_every: 1 + +# chrony query command: +local: + command: 'chronyc -n tracking' +``` + +Save the file and restart the Netdata Agent with `sudo systemctl restart netdata`, or the appropriate method for your +system, to finish configuring the `chrony` collector. + +[](<>) diff --git a/collectors/python.d.plugin/chrony/chrony.chart.py b/collectors/python.d.plugin/chrony/chrony.chart.py new file mode 100644 index 0000000..91f7250 --- /dev/null +++ b/collectors/python.d.plugin/chrony/chrony.chart.py @@ -0,0 +1,118 @@ +# -*- 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 diff --git a/collectors/python.d.plugin/chrony/chrony.conf b/collectors/python.d.plugin/chrony/chrony.conf new file mode 100644 index 0000000..fd95519 --- /dev/null +++ b/collectors/python.d.plugin/chrony/chrony.conf @@ -0,0 +1,77 @@ +# netdata python.d.plugin configuration for chrony +# +# This file is in YaML format. Generally the format is: +# +# name: value +# +# There are 2 sections: +# - global variables +# - one or more JOBS +# +# JOBS allow you to collect values from multiple sources. +# Each source will have its own set of charts. +# +# JOB parameters have to be indented (using spaces only, example below). + +# ---------------------------------------------------------------------- +# Global Variables +# These variables set the defaults for all JOBs, however each JOB +# may define its own, overriding the defaults. + +# update_every sets the default data collection frequency. +# If unset, the python.d.plugin default is used. +update_every: 5 + +# priority controls the order of charts at the netdata dashboard. +# Lower numbers move the charts towards the top of the page. +# If unset, the default for python.d.plugin is used. +# priority: 60000 + +# penalty indicates whether to apply penalty to update_every in case of failures. +# Penalty will increase every 5 failed updates in a row. Maximum penalty is 10 minutes. +# penalty: yes + +# autodetection_retry sets the job re-check interval in seconds. +# The job is not deleted if check fails. +# Attempts to start the job are made once every autodetection_retry. +# This feature is disabled by default. +# autodetection_retry: 0 + +# ---------------------------------------------------------------------- +# JOBS (data collection sources) +# +# The default JOBS share the same *name*. JOBS with the same name +# are mutually exclusive. Only one of them will be allowed running at +# any time. This allows autodetection to try several alternatives and +# pick the one that works. +# +# Any number of jobs is supported. +# +# All python.d.plugin JOBS (for all its modules) support a set of +# predefined parameters. These are: +# +# job_name: +# name: myname # the JOB's name as it will appear at the +# # dashboard (by default is the job_name) +# # JOBs sharing a name are mutually exclusive +# update_every: 1 # the JOB's data collection frequency +# priority: 60000 # the JOB's order on the dashboard +# penalty: yes # the JOB's penalty +# autodetection_retry: 0 # the JOB's re-check interval in seconds +# +# Additionally to the above, chrony also supports the following: +# +# command: 'chrony tracking' # the command to run +# + +# ---------------------------------------------------------------------- +# REQUIRED chrony CONFIGURATION +# +# netdata will query chrony as user netdata. +# verify that user netdata is allowed to call 'chronyc tracking' +# Check cmdallow in chrony.conf +# ---------------------------------------------------------------------- +# AUTO-DETECTION JOBS + +local: + command: 'chronyc -n tracking' |