Add the ipmi plugin

plugins/inputs/all/all.go

@@ -15,6 +15,7 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/haproxy"
 	_ "github.com/influxdata/telegraf/plugins/inputs/httpjson"
 	_ "github.com/influxdata/telegraf/plugins/inputs/influxdb"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ipmi"
 	_ "github.com/influxdata/telegraf/plugins/inputs/jolokia"
 	_ "github.com/influxdata/telegraf/plugins/inputs/kafka_consumer"
 	_ "github.com/influxdata/telegraf/plugins/inputs/leofs"

plugins/inputs/ipmi/command.go

@@ -0,0 +1,62 @@
+// command
+package ipmi
+
+import (
+	"bytes"
+	"fmt"
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+type IpmiCommand struct {
+	*Connection
+}
+
+func (t *IpmiCommand) options() []string {
+	intf := t.Interface
+	if intf == "" {
+		intf = "lanplus"
+	}
+
+	options := []string{
+		"-H", t.Hostname,
+		"-U", t.Username,
+		"-P", t.Password,
+		"-I", intf,
+	}
+
+	if t.Port != 0 {
+		options = append(options, "-p", strconv.Itoa(t.Port))
+	}
+
+	return options
+}
+
+func (t *IpmiCommand) cmd(args ...string) *exec.Cmd {
+	path := t.Path
+	opts := append(t.options(), args...)
+
+	if path == "" {
+		path = "ipmitool"
+	}
+
+	return exec.Command(path, opts...)
+
+}
+
+func (t *IpmiCommand) Run(args ...string) (string, error) {
+	cmd := t.cmd(args...)
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	err := cmd.Run()
+	if err != nil {
+		return "", fmt.Errorf("run %s %s: %s (%s)",
+			cmd.Path, strings.Join(cmd.Args, " "), stderr.String(), err)
+	}
+
+	return stdout.String(), err
+}

plugins/inputs/ipmi/connection.go

@@ -0,0 +1,69 @@
+// connection
+package ipmi
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+// Connection properties for a Client
+type Connection struct {
+	Hostname  string
+	Username  string
+	Password  string
+	Path      string
+	Port      int
+	Interface string
+}
+
+func NewConnection(server string) *Connection {
+	conn := &Connection{}
+	inx1 := strings.Index(server, "@")
+	inx2 := strings.Index(server, "(")
+	inx3 := strings.Index(server, ")")
+
+	connstr := server
+
+	if inx1 > 0 {
+		security := server[0:inx1]
+		connstr = server[inx1+1 : len(server)]
+		up := strings.Split(security, ":")
+		conn.Username = up[0]
+		conn.Password = up[1]
+	}
+
+	if inx2 > 0 {
+		inx2 = strings.Index(connstr, "(")
+		inx3 = strings.Index(connstr, ")")
+
+		conn.Interface = connstr[0:inx2]
+		conn.Hostname = connstr[inx2+1 : inx3]
+	}
+
+	return conn
+}
+
+// RemoteIP returns the remote (bmc) IP address of the Connection
+func (c *Connection) RemoteIP() string {
+	if net.ParseIP(c.Hostname) == nil {
+		addrs, err := net.LookupHost(c.Hostname)
+		if err != nil && len(addrs) > 0 {
+			return addrs[0]
+		}
+	}
+	return c.Hostname
+}
+
+// LocalIP returns the local (client) IP address of the Connection
+func (c *Connection) LocalIP() string {
+	conn, err := net.Dial("udp", fmt.Sprintf("%s:%d", c.Hostname, c.Port))
+	if err != nil {
+		// don't bother returning an error, since this value will never
+		// make it to the bmc if we can't connect to it.
+		return c.Hostname
+	}
+	_ = conn.Close()
+	host, _, _ := net.SplitHostPort(conn.LocalAddr().String())
+	return host
+}

plugins/inputs/ipmi/ipmi.go

@@ -0,0 +1,119 @@
+// ipmi
+package ipmi
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+type Ipmi struct {
+	Servers []string
+}
+
+var sampleConfig = `
+  ## specify servers via a url matching:
+  ##  [username[:password]@][protocol[(address)]]
+  ##  e.g.
+  ##    root:passwd@lan(127.0.0.1)
+  ##
+  servers = ["USERID:PASSW0RD@lan(192.168.1.1)"]
+`
+var localhost = ""
+
+func (m *Ipmi) SampleConfig() string {
+	return sampleConfig
+}
+
+func (m *Ipmi) Description() string {
+	return "Read metrics from one or many bare metal servers"
+}
+
+func (m *Ipmi) Gather(acc telegraf.Accumulator) error {
+	if len(m.Servers) == 0 {
+		// if we can't get stats in this case, thats fine, don't report
+		// an error.
+		m.gatherServer(localhost, acc)
+		return nil
+	}
+
+	for _, serv := range m.Servers {
+		err := m.gatherServer(serv, acc)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (m *Ipmi) gatherServer(serv string, acc telegraf.Accumulator) error {
+	conn := NewConnection(serv)
+
+	tool := &IpmiCommand{conn}
+	res, err := tool.Run("sdr")
+	if err != nil {
+		return err
+	}
+
+	lines := strings.Split(res, "\n")
+
+	for i := 0; i < len(lines); i++ {
+		vals := strings.Split(lines[i], "|")
+		if len(vals) == 3 {
+			tags := map[string]string{"host": conn.Hostname, "inst": trim(vals[0])}
+			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 {
+				val := strings.Split(val1, " ")[0]
+				fields["value"] = Atofloat(val)
+			} else {
+				fields["value"] = 0.0
+			}
+
+			acc.AddFields("ipmi_sensor", fields, tags, time.Now())
+		}
+	}
+
+	return nil
+}
+
+func Atofloat4(val float64) float64 {
+	str := fmt.Sprintf("%.4f", val)
+	return Atofloat(str)
+}
+
+func Atofloat2(val float64) float64 {
+	str := fmt.Sprintf("%.2f", val)
+	return Atofloat(str)
+}
+
+func Atofloat(val string) float64 {
+	f, err := strconv.ParseFloat(val, 64)
+	if err != nil {
+		return float64(0)
+	} else {
+		return float64(f)
+	}
+}
+
+func trim(s string) string {
+	return strings.TrimSpace(s)
+}
+
+func init() {
+	inputs.Add("ipmi", func() telegraf.Input {
+		return &Ipmi{}
+	})
+}