160 lines
3.2 KiB
Go
160 lines
3.2 KiB
Go
package ipmi_sensor
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import (
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"fmt"
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"os/exec"
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"strconv"
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"strings"
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"time"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/internal"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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var (
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execCommand = exec.Command // execCommand is used to mock commands in tests.
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)
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type Ipmi struct {
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Path string
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Servers []string
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}
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var sampleConfig = `
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## optionally specify the path to the ipmitool executable
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# path = "/usr/bin/ipmitool"
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#
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## optionally specify one or more servers via a url matching
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## [username[:password]@][protocol[(address)]]
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## e.g.
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## root:passwd@lan(127.0.0.1)
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##
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## if no servers are specified, local machine sensor stats will be queried
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##
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# servers = ["USERID:PASSW0RD@lan(192.168.1.1)"]
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`
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func (m *Ipmi) SampleConfig() string {
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return sampleConfig
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}
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func (m *Ipmi) Description() string {
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return "Read metrics from the bare metal servers via IPMI"
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}
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func (m *Ipmi) Gather(acc telegraf.Accumulator) error {
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if len(m.Path) == 0 {
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return fmt.Errorf("ipmitool not found: verify that ipmitool is installed and that ipmitool is in your PATH")
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}
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if len(m.Servers) > 0 {
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for _, server := range m.Servers {
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err := m.parse(acc, server)
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if err != nil {
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acc.AddError(err)
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continue
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}
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}
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} else {
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err := m.parse(acc, "")
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (m *Ipmi) parse(acc telegraf.Accumulator, server string) error {
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opts := make([]string, 0)
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hostname := ""
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if server != "" {
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conn := NewConnection(server)
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hostname = conn.Hostname
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opts = conn.options()
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}
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opts = append(opts, "sdr")
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cmd := execCommand(m.Path, opts...)
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out, err := internal.CombinedOutputTimeout(cmd, time.Second*5)
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if err != nil {
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return fmt.Errorf("failed to run command %s: %s - %s", strings.Join(cmd.Args, " "), err, string(out))
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}
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// each line will look something like
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// Planar VBAT | 3.05 Volts | ok
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lines := strings.Split(string(out), "\n")
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for i := 0; i < len(lines); i++ {
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vals := strings.Split(lines[i], "|")
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if len(vals) != 3 {
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continue
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}
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tags := map[string]string{
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"name": transform(vals[0]),
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}
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// tag the server is we have one
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if hostname != "" {
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tags["server"] = hostname
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}
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fields := make(map[string]interface{})
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if strings.EqualFold("ok", trim(vals[2])) {
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fields["status"] = 1
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} else {
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fields["status"] = 0
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}
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val1 := trim(vals[1])
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if strings.Index(val1, " ") > 0 {
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// split middle column into value and unit
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valunit := strings.SplitN(val1, " ", 2)
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fields["value"] = Atofloat(valunit[0])
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if len(valunit) > 1 {
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tags["unit"] = transform(valunit[1])
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}
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} else {
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fields["value"] = 0.0
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}
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acc.AddFields("ipmi_sensor", fields, tags, time.Now())
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}
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return nil
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}
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func Atofloat(val string) float64 {
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f, err := strconv.ParseFloat(val, 64)
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if err != nil {
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return 0.0
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} else {
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return f
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}
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}
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func trim(s string) string {
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return strings.TrimSpace(s)
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}
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func transform(s string) string {
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s = trim(s)
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s = strings.ToLower(s)
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return strings.Replace(s, " ", "_", -1)
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}
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func init() {
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m := Ipmi{}
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path, _ := exec.LookPath("ipmitool")
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if len(path) > 0 {
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m.Path = path
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}
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inputs.Add("ipmi_sensor", func() telegraf.Input {
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m := m
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return &m
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})
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}
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