diff options
Diffstat (limited to 'collectors/python.d.plugin/w1sensor')
| -rw-r--r-- | collectors/python.d.plugin/w1sensor/Makefile.inc | 13 | ||||
| -rw-r--r-- | collectors/python.d.plugin/w1sensor/README.md | 13 | ||||
| -rw-r--r-- | collectors/python.d.plugin/w1sensor/w1sensor.chart.py | 93 | ||||
| -rw-r--r-- | collectors/python.d.plugin/w1sensor/w1sensor.conf | 74 |
4 files changed, 193 insertions, 0 deletions
diff --git a/collectors/python.d.plugin/w1sensor/Makefile.inc b/collectors/python.d.plugin/w1sensor/Makefile.inc new file mode 100644 index 000000000..bddf146f5 --- /dev/null +++ b/collectors/python.d.plugin/w1sensor/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 += w1sensor/w1sensor.chart.py +dist_pythonconfig_DATA += w1sensor/w1sensor.conf + +# do not install these files, but include them in the distribution +dist_noinst_DATA += w1sensor/README.md w1sensor/Makefile.inc + diff --git a/collectors/python.d.plugin/w1sensor/README.md b/collectors/python.d.plugin/w1sensor/README.md new file mode 100644 index 000000000..b18f08351 --- /dev/null +++ b/collectors/python.d.plugin/w1sensor/README.md @@ -0,0 +1,13 @@ +# w1sensor + +Data from 1-Wire sensors. +On Linux these are supported by the wire, w1_gpio, and w1_therm modules. +Currently temperature sensors are supported and automatically detected. + +Charts are created dynamically based on the number of detected sensors. + +### configuration + +For detailed configuration information please read [`w1sensor.conf`](w1sensor.conf) file. + +--- diff --git a/collectors/python.d.plugin/w1sensor/w1sensor.chart.py b/collectors/python.d.plugin/w1sensor/w1sensor.chart.py new file mode 100644 index 000000000..493c4a135 --- /dev/null +++ b/collectors/python.d.plugin/w1sensor/w1sensor.chart.py @@ -0,0 +1,93 @@ +# -*- coding: utf-8 -*- +# Description: 1-wire temperature monitor netdata python.d module +# Author: Diomidis Spinellis <http://www.spinellis.gr> +# SPDX-License-Identifier: GPL-3.0-or-later + +import os +import re +from bases.FrameworkServices.SimpleService import SimpleService + +# default module values (can be overridden per job in `config`) +update_every = 5 + +# Location where 1-Wire devices can be found +W1_DIR = '/sys/bus/w1/devices/' + +# Lines matching the following regular expression contain a temperature value +RE_TEMP = re.compile(r' t=(\d+)') + +ORDER = ['temp'] + +CHARTS = { + 'temp': { + 'options': [None, '1-Wire Temperature Sensor', 'Celsius', 'Temperature', 'w1sensor.temp', 'line'], + 'lines': [] + } +} + +# Known and supported family members +# Based on linux/drivers/w1/w1_family.h and w1/slaves/w1_therm.c +THERM_FAMILY = { + '10': 'W1_THERM_DS18S20', + '22': 'W1_THERM_DS1822', + '28': 'W1_THERM_DS18B20', + '3b': 'W1_THERM_DS1825', + '42': 'W1_THERM_DS28EA00', +} + + +class Service(SimpleService): + """Provide netdata service for 1-Wire sensors""" + def __init__(self, configuration=None, name=None): + SimpleService.__init__(self, configuration=configuration, name=name) + self.order = ORDER + self.definitions = CHARTS + self.probes = [] + + def check(self): + """Auto-detect available 1-Wire sensors, setting line definitions + and probes to be monitored.""" + try: + file_names = os.listdir(W1_DIR) + except OSError as err: + self.error(err) + return False + + lines = [] + for file_name in file_names: + if file_name[2] != '-': + continue + if not file_name[0:2] in THERM_FAMILY: + continue + + self.probes.append(file_name) + identifier = file_name[3:] + name = identifier + config_name = self.configuration.get('name_' + identifier) + if config_name: + name = config_name + lines.append(['w1sensor_temp_' + identifier, name, 'absolute', + 1, 10]) + self.definitions['temp']['lines'] = lines + return len(self.probes) > 0 + + def get_data(self): + """Return data read from sensors.""" + data = dict() + + for file_name in self.probes: + file_path = W1_DIR + file_name + '/w1_slave' + identifier = file_name[3:] + try: + with open(file_path, 'r') as device_file: + for line in device_file: + matched = RE_TEMP.search(line) + if matched: + # Round to one decimal digit to filter-out noise + value = round(int(matched.group(1)) / 1000., 1) + value = int(value * 10) + data['w1sensor_temp_' + identifier] = value + except (OSError, IOError) as err: + self.error(err) + continue + return data or None diff --git a/collectors/python.d.plugin/w1sensor/w1sensor.conf b/collectors/python.d.plugin/w1sensor/w1sensor.conf new file mode 100644 index 000000000..a4aed8dd7 --- /dev/null +++ b/collectors/python.d.plugin/w1sensor/w1sensor.conf @@ -0,0 +1,74 @@ +# netdata python.d.plugin configuration for w1sensor +# +# 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 + +# retries sets the number of retries to be made in case of failures. +# If unset, the default for python.d.plugin is used. +# Attempts to restore the service are made once every update_every +# and only if the module has collected values in the past. +# retries: 60 + +# 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: 5 # the JOB's data collection frequency +# priority: 60000 # the JOB's order on the dashboard +# retries: 60 # the JOB's number of restoration attempts +# autodetection_retry: 0 # the JOB's re-check interval in seconds +# +# Additionally to the above, example also supports the following: +# +# name_<1-Wire id>: '<human readable name>' +# This allows associating a human readable name with a sensor's 1-Wire +# identifier. Example: +# name_00000022276e: 'Machine room' +# name_00000022298f: 'Rack 12' +# +# ---------------------------------------------------------------------- +# AUTO-DETECTION JOBS +# only one of them will run (they have the same name) |