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Implement support for fetching hddtemp data (#1411)

This commit is contained in:
Mendelson Gusmão 2016-07-21 13:00:54 -03:00 committed by Cameron Sparr
parent 0462af164e
commit 29ea433763
9 changed files with 300 additions and 0 deletions
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1
CHANGELOG.md
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@ -62,6 +62,7 @@ should now look like:
- [#1434](https://github.com/influxdata/telegraf/pull/1434): Add measurement name arg to logparser plugin.
- [#1479](https://github.com/influxdata/telegraf/pull/1479): logparser: change resp_code from a field to a tag.
- [#1466](https://github.com/influxdata/telegraf/pull/1466): MongoDB input plugin: adding per DB stats from db.stats()
- [#1411](https://github.com/influxdata/telegraf/pull/1411): Implement support for fetching hddtemp data
### Bugfixes

1
README.md
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@ -156,6 +156,7 @@ Currently implemented sources:
* [exec](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/exec) (generic executable plugin, support JSON, influx, graphite and nagios)
* [filestat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/filestat)
* [haproxy](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/haproxy)
* [hddtemp](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/hddtemp)
* [http_response](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/http_response)
* [httpjson](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/httpjson) (generic JSON-emitting http service plugin)
* [influxdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/influxdb)

1
plugins/inputs/all/all.go
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@ -22,6 +22,7 @@ import (
_ "github.com/influxdata/telegraf/plugins/inputs/filestat"
_ "github.com/influxdata/telegraf/plugins/inputs/graylog"
_ "github.com/influxdata/telegraf/plugins/inputs/haproxy"
_ "github.com/influxdata/telegraf/plugins/inputs/hddtemp"
_ "github.com/influxdata/telegraf/plugins/inputs/http_response"
_ "github.com/influxdata/telegraf/plugins/inputs/httpjson"
_ "github.com/influxdata/telegraf/plugins/inputs/influxdb"

22
plugins/inputs/hddtemp/README.md Normal file
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@ -0,0 +1,22 @@
# Hddtemp Input Plugin
This plugin reads data from hddtemp daemon
## Requirements
Hddtemp should be installed and its daemon running
## Configuration
```
[[inputs.hddtemp]]
## By default, telegraf gathers temps data from all disks detected by the
## hddtemp.
##
## Only collect temps from the selected disks.
##
## A * as the device name will return the temperature values of all disks.
##
# address = "127.0.0.1:7634"
# devices = ["sda", "*"]
```

21
plugins/inputs/hddtemp/go-hddtemp/LICENSE Normal file
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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2016 Mendelson Gusmão
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

61
plugins/inputs/hddtemp/go-hddtemp/hddtemp.go Normal file
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@ -0,0 +1,61 @@
package hddtemp
import (
"bytes"
"io"
"net"
"strconv"
"strings"
)
type disk struct {
DeviceName string
Model string
Temperature int32
Unit string
Status string
}
func Fetch(address string) ([]disk, error) {
var (
err error
conn net.Conn
buffer bytes.Buffer
disks []disk
)
if conn, err = net.Dial("tcp", address); err != nil {
return nil, err
}
if _, err = io.Copy(&buffer, conn); err != nil {
return nil, err
}
fields := strings.Split(buffer.String(), "|")
for index := 0; index < len(fields)/5; index++ {
status := ""
offset := index * 5
device := fields[offset+1]
device = device[strings.LastIndex(device, "/")+1:]
temperatureField := fields[offset+3]
temperature, err := strconv.ParseInt(temperatureField, 10, 32)
if err != nil {
temperature = 0
status = temperatureField
}
disks = append(disks, disk{
DeviceName: device,
Model: fields[offset+2],
Temperature: int32(temperature),
Unit: fields[offset+4],
Status: status,
})
}
return disks, nil
}

116
plugins/inputs/hddtemp/go-hddtemp/hddtemp_test.go Normal file
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@ -0,0 +1,116 @@
package hddtemp
import (
"net"
"reflect"
"testing"
)
func TestFetch(t *testing.T) {
l := serve(t, []byte("|/dev/sda|foobar|36|C|"))
defer l.Close()
disks, err := Fetch(l.Addr().String())
if err != nil {
t.Error("expecting err to be nil")
}
expected := []disk{
{
DeviceName: "sda",
Model: "foobar",
Temperature: 36,
Unit: "C",
},
}
if !reflect.DeepEqual(expected, disks) {
t.Error("disks' slice is different from expected")
}
}
func TestFetchWrongAddress(t *testing.T) {
_, err := Fetch("127.0.0.1:1")
if err == nil {
t.Error("expecting err to be non-nil")
}
}
func TestFetchStatus(t *testing.T) {
l := serve(t, []byte("|/dev/sda|foobar|SLP|C|"))
defer l.Close()
disks, err := Fetch(l.Addr().String())
if err != nil {
t.Error("expecting err to be nil")
}
expected := []disk{
{
DeviceName: "sda",
Model: "foobar",
Temperature: 0,
Unit: "C",
Status: "SLP",
},
}
if !reflect.DeepEqual(expected, disks) {
t.Error("disks' slice is different from expected")
}
}
func TestFetchTwoDisks(t *testing.T) {
l := serve(t, []byte("|/dev/hda|ST380011A|46|C||/dev/hdd|ST340016A|SLP|*|"))
defer l.Close()
disks, err := Fetch(l.Addr().String())
if err != nil {
t.Error("expecting err to be nil")
}
expected := []disk{
{
DeviceName: "hda",
Model: "ST380011A",
Temperature: 46,
Unit: "C",
},
{
DeviceName: "hdd",
Model: "ST340016A",
Temperature: 0,
Unit: "*",
Status: "SLP",
},
}
if !reflect.DeepEqual(expected, disks) {
t.Error("disks' slice is different from expected")
}
}
func serve(t *testing.T, data []byte) net.Listener {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
go func(t *testing.T) {
conn, err := l.Accept()
if err != nil {
t.Fatal(err)
}
conn.Write(data)
conn.Close()
}(t)
return l
}

74
plugins/inputs/hddtemp/hddtemp.go Normal file
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@ -0,0 +1,74 @@
// +build linux
package hddtemp
import (
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
gohddtemp "github.com/influxdata/telegraf/plugins/inputs/hddtemp/go-hddtemp"
)
const defaultAddress = "127.0.0.1:7634"
type HDDTemp struct {
Address string
Devices []string
}
func (_ *HDDTemp) Description() string {
return "Monitor disks' temperatures using hddtemp"
}
var hddtempSampleConfig = `
## By default, telegraf gathers temps data from all disks detected by the
## hddtemp.
##
## Only collect temps from the selected disks.
##
## A * as the device name will return the temperature values of all disks.
##
# address = "127.0.0.1:7634"
# devices = ["sda", "*"]
`
func (_ *HDDTemp) SampleConfig() string {
return hddtempSampleConfig
}
func (h *HDDTemp) Gather(acc telegraf.Accumulator) error {
disks, err := gohddtemp.Fetch(h.Address)
if err != nil {
return err
}
for _, disk := range disks {
for _, chosenDevice := range h.Devices {
if chosenDevice == "*" || chosenDevice == disk.DeviceName {
tags := map[string]string{
"device": disk.DeviceName,
"model": disk.Model,
"unit": disk.Unit,
"status": disk.Status,
}
fields := map[string]interface{}{
disk.DeviceName: disk.Temperature,
}
acc.AddFields("hddtemp", fields, tags)
}
}
}
return nil
}
func init() {
inputs.Add("hddtemp", func() telegraf.Input {
return &HDDTemp{
Address: defaultAddress,
Devices: []string{"*"},
}
})
}

3
plugins/inputs/hddtemp/hddtemp_nocompile.go Normal file
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@ -0,0 +1,3 @@
// +build !linux
package hddtemp