mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-11-27 02:53:02 +01:00
9def2f9222
Add a DMI collector to expose the Desktop Management Interface (DMI) info from `/sys/class/dmi/id/`. This will expose information about the BIOS, mainboard, chassis, and product. Closes: https://github.com/prometheus/node_exporter/issues/303 Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
106 lines
3.4 KiB
Go
106 lines
3.4 KiB
Go
// Copyright 2021 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//go:build linux && !nodmi
|
|
// +build linux,!nodmi
|
|
|
|
package collector
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/go-kit/log"
|
|
"github.com/go-kit/log/level"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/procfs/sysfs"
|
|
)
|
|
|
|
type dmiCollector struct {
|
|
infoDesc *prometheus.Desc
|
|
values []string
|
|
}
|
|
|
|
func init() {
|
|
registerCollector("dmi", defaultEnabled, NewDMICollector)
|
|
}
|
|
|
|
// NewDMICollector returns a new Collector exposing DMI information.
|
|
func NewDMICollector(logger log.Logger) (Collector, error) {
|
|
fs, err := sysfs.NewFS(*sysPath)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to open sysfs: %w", err)
|
|
}
|
|
|
|
dmi, err := fs.DMIClass()
|
|
if err != nil {
|
|
if errors.Is(err, os.ErrNotExist) {
|
|
level.Debug(logger).Log("msg", "Platform does not support Desktop Management Interface (DMI) information", "err", err)
|
|
dmi = &sysfs.DMIClass{}
|
|
} else {
|
|
return nil, fmt.Errorf("failed to read Desktop Management Interface (DMI) information: %w", err)
|
|
}
|
|
}
|
|
|
|
var labels, values []string
|
|
for label, value := range map[string]*string{
|
|
"bios_date": dmi.BiosDate,
|
|
"bios_release": dmi.BiosRelease,
|
|
"bios_vendor": dmi.BiosVendor,
|
|
"bios_version": dmi.BiosVersion,
|
|
"board_asset_tag": dmi.BoardAssetTag,
|
|
"board_name": dmi.BoardName,
|
|
"board_serial": dmi.BoardSerial,
|
|
"board_vendor": dmi.BoardVendor,
|
|
"board_version": dmi.BoardVersion,
|
|
"chassis_asset_tag": dmi.ChassisAssetTag,
|
|
"chassis_serial": dmi.ChassisSerial,
|
|
"chassis_vendor": dmi.ChassisVendor,
|
|
"chassis_version": dmi.ChassisVersion,
|
|
"product_family": dmi.ProductFamily,
|
|
"product_name": dmi.ProductName,
|
|
"product_serial": dmi.ProductSerial,
|
|
"product_sku": dmi.ProductSKU,
|
|
"product_uuid": dmi.ProductUUID,
|
|
"product_version": dmi.ProductVersion,
|
|
"system_vendor": dmi.SystemVendor,
|
|
} {
|
|
if value != nil {
|
|
labels = append(labels, label)
|
|
values = append(values, *value)
|
|
}
|
|
}
|
|
|
|
// Construct DMI metric only once since it will not change until the next reboot.
|
|
return &dmiCollector{
|
|
infoDesc: prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "dmi", "info"),
|
|
"A metric with a constant '1' value labeled by bios_date, bios_release, bios_vendor, bios_version, "+
|
|
"board_asset_tag, board_name, board_serial, board_vendor, board_version, chassis_asset_tag, "+
|
|
"chassis_serial, chassis_vendor, chassis_version, product_family, product_name, product_serial, "+
|
|
"product_sku, product_uuid, product_version, system_vendor if provided by DMI.",
|
|
labels, nil,
|
|
),
|
|
values: values,
|
|
}, nil
|
|
}
|
|
|
|
func (c *dmiCollector) Update(ch chan<- prometheus.Metric) error {
|
|
if len(c.values) == 0 {
|
|
return ErrNoData
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(c.infoDesc, prometheus.GaugeValue, 1.0, c.values...)
|
|
return nil
|
|
}
|