mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-20 23:46:09 +01:00
110 lines
2.8 KiB
Go
110 lines
2.8 KiB
Go
// Copyright 2019 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build !nothermalzone
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package collector
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import (
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"fmt"
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"github.com/go-kit/kit/log"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/procfs/sysfs"
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)
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const coolingDevice = "cooling_device"
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const thermalZone = "thermal_zone"
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type thermalZoneCollector struct {
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fs sysfs.FS
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coolingDeviceCurState *prometheus.Desc
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coolingDeviceMaxState *prometheus.Desc
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zoneTemp *prometheus.Desc
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logger log.Logger
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}
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func init() {
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registerCollector("thermal_zone", defaultEnabled, NewThermalZoneCollector)
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}
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// NewThermalZoneCollector returns a new Collector exposing kernel/system statistics.
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func NewThermalZoneCollector(logger log.Logger) (Collector, error) {
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fs, err := sysfs.NewFS(*sysPath)
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if err != nil {
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return nil, fmt.Errorf("failed to open sysfs: %w", err)
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}
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return &thermalZoneCollector{
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fs: fs,
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zoneTemp: prometheus.NewDesc(
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prometheus.BuildFQName(namespace, thermalZone, "temp"),
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"Zone temperature in Celsius",
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[]string{"zone", "type"}, nil,
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),
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coolingDeviceCurState: prometheus.NewDesc(
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prometheus.BuildFQName(namespace, coolingDevice, "cur_state"),
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"Current throttle state of the cooling device",
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[]string{"name", "type"}, nil,
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),
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coolingDeviceMaxState: prometheus.NewDesc(
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prometheus.BuildFQName(namespace, coolingDevice, "max_state"),
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"Maximum throttle state of the cooling device",
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[]string{"name", "type"}, nil,
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),
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logger: logger,
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}, nil
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}
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func (c *thermalZoneCollector) Update(ch chan<- prometheus.Metric) error {
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thermalZones, err := c.fs.ClassThermalZoneStats()
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if err != nil {
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return err
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}
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for _, stats := range thermalZones {
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ch <- prometheus.MustNewConstMetric(
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c.zoneTemp,
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prometheus.GaugeValue,
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float64(stats.Temp)/1000.0,
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stats.Name,
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stats.Type,
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)
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}
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coolingDevices, err := c.fs.ClassCoolingDeviceStats()
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if err != nil {
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return err
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}
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for _, stats := range coolingDevices {
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ch <- prometheus.MustNewConstMetric(
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c.coolingDeviceCurState,
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prometheus.GaugeValue,
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float64(stats.CurState),
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stats.Name,
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stats.Type,
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)
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ch <- prometheus.MustNewConstMetric(
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c.coolingDeviceMaxState,
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prometheus.GaugeValue,
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float64(stats.MaxState),
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stats.Name,
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stats.Type,
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)
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}
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return nil
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}
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