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