mirror of
https://github.com/prometheus-community/ipmi_exporter
synced 2024-12-24 15:02:54 +00:00
57c0f966d0
There are systems that do not make this available, so don't make the entire collector fail if only this metric can not be read. Instead, set it to "N/A" if it cannot be determined. This fixes #57.
709 lines
18 KiB
Go
709 lines
18 KiB
Go
package main
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import (
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"bytes"
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"crypto/rand"
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"encoding/csv"
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"encoding/hex"
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"errors"
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"fmt"
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"math"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"regexp"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/common/log"
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)
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const (
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namespace = "ipmi"
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targetLocal = ""
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)
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var (
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ipmiDCMICurrentPowerRegex = regexp.MustCompile(`^Current Power\s*:\s*(?P<value>[0-9.]*)\s*Watts.*`)
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ipmiChassisPowerRegex = regexp.MustCompile(`^System Power\s*:\s(?P<value>.*)`)
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ipmiSELEntriesRegex = regexp.MustCompile(`^Number of log entries\s*:\s(?P<value>[0-9.]*)`)
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ipmiSELFreeSpaceRegex = regexp.MustCompile(`^Free space remaining\s*:\s(?P<value>[0-9.]*)\s*bytes.*`)
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bmcInfoFirmwareRevisionRegex = regexp.MustCompile(`^Firmware Revision\s*:\s*(?P<value>[0-9.]*).*`)
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bmcInfoSystemFirmwareVersionRegex = regexp.MustCompile(`^System Firmware Version\s*:\s*(?P<value>[0-9.]*).*`)
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bmcInfoManufacturerIDRegex = regexp.MustCompile(`^Manufacturer ID\s*:\s*(?P<value>.*)`)
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)
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type collector struct {
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target string
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module string
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config *SafeConfig
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}
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type sensorData struct {
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ID int64
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Name string
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Type string
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State string
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Value float64
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Unit string
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Event string
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}
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type ipmiTarget struct {
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host string
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config IPMIConfig
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}
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var (
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sensorStateDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "sensor", "state"),
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"Indicates the severity of the state reported by an IPMI sensor (0=nominal, 1=warning, 2=critical).",
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[]string{"id", "name", "type"},
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nil,
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)
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sensorValueDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "sensor", "value"),
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"Generic data read from an IPMI sensor of unknown type, relying on labels for context.",
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[]string{"id", "name", "type"},
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nil,
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)
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fanSpeedDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "fan_speed", "rpm"),
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"Fan speed in rotations per minute.",
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[]string{"id", "name"},
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nil,
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)
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fanSpeedStateDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "fan_speed", "state"),
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"Reported state of a fan speed sensor (0=nominal, 1=warning, 2=critical).",
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[]string{"id", "name"},
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nil,
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)
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temperatureDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "temperature", "celsius"),
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"Temperature reading in degree Celsius.",
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[]string{"id", "name"},
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nil,
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)
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temperatureStateDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "temperature", "state"),
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"Reported state of a temperature sensor (0=nominal, 1=warning, 2=critical).",
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[]string{"id", "name"},
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nil,
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)
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voltageDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "voltage", "volts"),
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"Voltage reading in Volts.",
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[]string{"id", "name"},
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nil,
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)
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voltageStateDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "voltage", "state"),
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"Reported state of a voltage sensor (0=nominal, 1=warning, 2=critical).",
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[]string{"id", "name"},
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nil,
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)
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currentDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "current", "amperes"),
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"Current reading in Amperes.",
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[]string{"id", "name"},
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nil,
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)
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currentStateDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "current", "state"),
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"Reported state of a current sensor (0=nominal, 1=warning, 2=critical).",
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[]string{"id", "name"},
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nil,
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)
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powerDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "power", "watts"),
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"Power reading in Watts.",
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[]string{"id", "name"},
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nil,
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)
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powerStateDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "power", "state"),
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"Reported state of a power sensor (0=nominal, 1=warning, 2=critical).",
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[]string{"id", "name"},
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nil,
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)
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powerConsumption = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "dcmi", "power_consumption_watts"),
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"Current power consumption in Watts.",
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[]string{},
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nil,
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)
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chassisPowerState = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "chassis", "power_state"),
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"Current power state (1=on, 0=off).",
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[]string{},
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nil,
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)
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bmcInfo = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "bmc", "info"),
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"Constant metric with value '1' providing details about the BMC.",
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[]string{"firmware_revision", "manufacturer_id", "system_firmware_version"},
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nil,
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)
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selEntriesCountDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "sel", "logs_count"),
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"Current number of log entries in the SEL.",
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[]string{},
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nil,
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)
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selFreeSpaceDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "sel", "free_space_bytes"),
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"Current free space remaining for new SEL entries.",
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[]string{},
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nil,
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)
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upDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "", "up"),
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"'1' if a scrape of the IPMI device was successful, '0' otherwise.",
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[]string{"collector"},
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nil,
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)
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durationDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "scrape_duration", "seconds"),
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"Returns how long the scrape took to complete in seconds.",
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nil,
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nil,
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)
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lanModeDesc = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "config", "lan_mode"),
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"Returns configured LAN mode (0=dedicated, 1=shared, 2=failover).",
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nil,
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nil,
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)
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)
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func pipeName() string {
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randBytes := make([]byte, 16)
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rand.Read(randBytes)
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return filepath.Join(os.TempDir(), "ipmi_exporter-"+hex.EncodeToString(randBytes))
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}
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func freeipmiConfig(config IPMIConfig) string {
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var b strings.Builder
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if config.Driver != "" {
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fmt.Fprintf(&b, "driver-type %s\n", config.Driver)
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}
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if config.Privilege != "" {
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fmt.Fprintf(&b, "privilege-level %s\n", config.Privilege)
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}
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if config.User != "" {
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fmt.Fprintf(&b, "username %s\n", config.User)
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}
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if config.Password != "" {
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fmt.Fprintf(&b, "password %s\n", escapePassword(config.Password))
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}
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if config.Timeout != 0 {
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fmt.Fprintf(&b, "session-timeout %d\n", config.Timeout)
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}
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if len(config.WorkaroundFlags) > 0 {
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fmt.Fprintf(&b, "workaround-flags")
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for _, flag := range config.WorkaroundFlags {
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fmt.Fprintf(&b, " %s", flag)
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}
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fmt.Fprintln(&b)
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}
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return b.String()
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}
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func freeipmiConfigPipe(config IPMIConfig) (string, error) {
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content := []byte(freeipmiConfig(config))
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pipe := pipeName()
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err := syscall.Mkfifo(pipe, 0600)
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if err != nil {
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return "", err
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}
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go func(file string, data []byte) {
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f, err := os.OpenFile(file, os.O_WRONLY|os.O_CREATE|os.O_APPEND, os.ModeNamedPipe)
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if err != nil {
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log.Errorf("Error opening pipe: %s", err)
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}
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if _, err := f.Write(data); err != nil {
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log.Errorf("Error writing config to pipe: %s", err)
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}
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f.Close()
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}(pipe, content)
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return pipe, nil
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}
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func freeipmiOutput(cmd string, target ipmiTarget, arg ...string) ([]byte, error) {
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pipe, err := freeipmiConfigPipe(target.config)
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if err != nil {
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return nil, err
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}
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defer func() {
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if err := os.Remove(pipe); err != nil {
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log.Errorf("Error deleting named pipe: %s", err)
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}
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}()
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args := []string{"--config-file", pipe}
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if !targetIsLocal(target.host) {
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args = append(args, "-h", target.host)
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}
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fqcmd := path.Join(*executablesPath, cmd)
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args = append(args, arg...)
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log.Debugf("Executing %s %v", fqcmd, args)
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out, err := exec.Command(fqcmd, args...).CombinedOutput()
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if err != nil {
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log.Errorf("Error while calling %s for %s: %s", cmd, targetName(target.host), out)
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}
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return out, err
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}
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func ipmiMonitoringOutput(target ipmiTarget) ([]byte, error) {
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return freeipmiOutput("ipmimonitoring", target, "-Q", "--ignore-unrecognized-events", "--comma-separated-output", "--no-header-output", "--sdr-cache-recreate")
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}
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func ipmiDCMIOutput(target ipmiTarget) ([]byte, error) {
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return freeipmiOutput("ipmi-dcmi", target, "--get-system-power-statistics")
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}
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func bmcInfoOutput(target ipmiTarget) ([]byte, error) {
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return freeipmiOutput("bmc-info", target)
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}
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func ipmiChassisOutput(target ipmiTarget) ([]byte, error) {
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return freeipmiOutput("ipmi-chassis", target, "--get-chassis-status")
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}
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func ipmiSELOutput(target ipmiTarget) ([]byte, error) {
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return freeipmiOutput("ipmi-sel", target, "--info")
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}
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func splitMonitoringOutput(impiOutput []byte, excludeSensorIds []int64) ([]sensorData, error) {
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var result []sensorData
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r := csv.NewReader(bytes.NewReader(impiOutput))
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fields, err := r.ReadAll()
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if err != nil {
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return result, err
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}
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for _, line := range fields {
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var data sensorData
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data.ID, err = strconv.ParseInt(line[0], 10, 64)
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if err != nil {
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return result, err
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}
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if contains(excludeSensorIds, data.ID) {
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continue
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}
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data.Name = line[1]
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data.Type = line[2]
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data.State = line[3]
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value := line[4]
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if value != "N/A" {
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data.Value, err = strconv.ParseFloat(value, 64)
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if err != nil {
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return result, err
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}
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} else {
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data.Value = math.NaN()
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}
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data.Unit = line[5]
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data.Event = strings.Trim(line[6], "'")
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result = append(result, data)
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}
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return result, err
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}
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func getValue(ipmiOutput []byte, regex *regexp.Regexp) (string, error) {
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for _, line := range strings.Split(string(ipmiOutput), "\n") {
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match := regex.FindStringSubmatch(line)
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if match == nil {
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continue
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}
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for i, name := range regex.SubexpNames() {
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if name != "value" {
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continue
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}
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return match[i], nil
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}
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}
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return "", fmt.Errorf("Could not find value in output: %s", string(ipmiOutput))
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}
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func getCurrentPowerConsumption(ipmiOutput []byte) (float64, error) {
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value, err := getValue(ipmiOutput, ipmiDCMICurrentPowerRegex)
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if err != nil {
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return -1, err
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}
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return strconv.ParseFloat(value, 64)
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}
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func getChassisPowerState(ipmiOutput []byte) (float64, error) {
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value, err := getValue(ipmiOutput, ipmiChassisPowerRegex)
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if err != nil {
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return -1, err
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}
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if value == "on" {
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return 1, err
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}
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return 0, err
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}
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func getBMCInfoFirmwareRevision(ipmiOutput []byte) (string, error) {
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return getValue(ipmiOutput, bmcInfoFirmwareRevisionRegex)
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}
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func getBMCInfoManufacturerID(ipmiOutput []byte) (string, error) {
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return getValue(ipmiOutput, bmcInfoManufacturerIDRegex)
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}
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func getBMCInfoSystemFirmwareVersion(ipmiOutput []byte) (string, error) {
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return getValue(ipmiOutput, bmcInfoSystemFirmwareVersionRegex)
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}
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func getSELInfoEntriesCount(ipmiOutput []byte) (float64, error) {
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value, err := getValue(ipmiOutput, ipmiSELEntriesRegex)
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if err != nil {
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return -1, err
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}
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return strconv.ParseFloat(value, 64)
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}
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func getSELInfoFreeSpace(ipmiOutput []byte) (float64, error) {
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value, err := getValue(ipmiOutput, ipmiSELFreeSpaceRegex)
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if err != nil {
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return -1, err
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}
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return strconv.ParseFloat(value, 64)
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}
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// Describe implements Prometheus.Collector.
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func (c collector) Describe(ch chan<- *prometheus.Desc) {
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ch <- sensorStateDesc
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ch <- sensorValueDesc
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ch <- fanSpeedDesc
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ch <- temperatureDesc
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ch <- powerConsumption
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ch <- bmcInfo
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ch <- selEntriesCountDesc
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ch <- selFreeSpaceDesc
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ch <- upDesc
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ch <- durationDesc
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ch <- lanModeDesc
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}
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func collectTypedSensor(ch chan<- prometheus.Metric, desc, stateDesc *prometheus.Desc, state float64, data sensorData) {
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ch <- prometheus.MustNewConstMetric(
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desc,
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prometheus.GaugeValue,
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data.Value,
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strconv.FormatInt(data.ID, 10),
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data.Name,
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)
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ch <- prometheus.MustNewConstMetric(
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stateDesc,
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prometheus.GaugeValue,
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state,
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strconv.FormatInt(data.ID, 10),
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data.Name,
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)
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}
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func collectGenericSensor(ch chan<- prometheus.Metric, state float64, data sensorData) {
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ch <- prometheus.MustNewConstMetric(
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sensorValueDesc,
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prometheus.GaugeValue,
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data.Value,
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strconv.FormatInt(data.ID, 10),
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data.Name,
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data.Type,
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)
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ch <- prometheus.MustNewConstMetric(
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sensorStateDesc,
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prometheus.GaugeValue,
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state,
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strconv.FormatInt(data.ID, 10),
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data.Name,
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data.Type,
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)
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}
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func collectMonitoring(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
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output, err := ipmiMonitoringOutput(target)
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if err != nil {
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log.Errorf("Failed to collect ipmimonitoring data from %s: %s", targetName(target.host), err)
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return 0, err
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}
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excludeIds := target.config.ExcludeSensorIDs
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results, err := splitMonitoringOutput(output, excludeIds)
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if err != nil {
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log.Errorf("Failed to parse ipmimonitoring data from %s: %s", targetName(target.host), err)
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return 0, err
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}
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for _, data := range results {
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var state float64
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switch data.State {
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case "Nominal":
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state = 0
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case "Warning":
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state = 1
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case "Critical":
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state = 2
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case "N/A":
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state = math.NaN()
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default:
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log.Errorf("Unknown sensor state: '%s'\n", data.State)
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state = math.NaN()
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}
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log.Debugf("Got values: %v\n", data)
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switch data.Unit {
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case "RPM":
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collectTypedSensor(ch, fanSpeedDesc, fanSpeedStateDesc, state, data)
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case "C":
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collectTypedSensor(ch, temperatureDesc, temperatureStateDesc, state, data)
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case "A":
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collectTypedSensor(ch, currentDesc, currentStateDesc, state, data)
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case "V":
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collectTypedSensor(ch, voltageDesc, voltageStateDesc, state, data)
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case "W":
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collectTypedSensor(ch, powerDesc, powerStateDesc, state, data)
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default:
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collectGenericSensor(ch, state, data)
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}
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}
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return 1, nil
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}
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func collectSmLanMode(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
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output, err := freeipmiOutput("ipmi-raw", target, "0x0", "0x30", "0x70", "0x0c", "0")
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if err != nil {
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log.Errorf("Failed to collect sm-lan-mode data from %s: %s", targetName(target.host), err)
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return 0, err
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}
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strOutput := strings.Trim(string(output), " \r\n")
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if !strings.HasPrefix(strOutput, "rcvd: ") {
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log.Errorf("Unexpected output of ipmi-raw from %s: %s", targetName(target.host), strOutput)
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return 0, errors.New("unexpected output")
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}
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octects := strings.Split(strOutput[6:], " ")
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if len(octects) != 3 {
|
|
log.Errorf("Unexpected number of octects of ipmi-raw from %s: %+v", targetName(target.host), octects)
|
|
return 0, errors.New("unexpected number of octects")
|
|
}
|
|
|
|
switch octects[2] {
|
|
case "00", "01", "02":
|
|
value, _ := strconv.Atoi(octects[2])
|
|
ch <- prometheus.MustNewConstMetric(lanModeDesc, prometheus.GaugeValue, float64(value))
|
|
default:
|
|
log.Errorf("Unexpected lan mode status (ipmi-raw) from %s: %+v", targetName(target.host), octects[2])
|
|
return 0, errors.New("unexpected lan mode status")
|
|
}
|
|
|
|
return 1, nil
|
|
}
|
|
|
|
func collectDCMI(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
|
|
output, err := ipmiDCMIOutput(target)
|
|
if err != nil {
|
|
log.Debugf("Failed to collect ipmi-dcmi data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
currentPowerConsumption, err := getCurrentPowerConsumption(output)
|
|
if err != nil {
|
|
log.Errorf("Failed to parse ipmi-dcmi data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
powerConsumption,
|
|
prometheus.GaugeValue,
|
|
currentPowerConsumption,
|
|
)
|
|
return 1, nil
|
|
}
|
|
|
|
func collectChassisState(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
|
|
output, err := ipmiChassisOutput(target)
|
|
if err != nil {
|
|
log.Debugf("Failed to collect ipmi-chassis data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
currentChassisPowerState, err := getChassisPowerState(output)
|
|
if err != nil {
|
|
log.Errorf("Failed to parse ipmi-chassis data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
chassisPowerState,
|
|
prometheus.GaugeValue,
|
|
currentChassisPowerState,
|
|
)
|
|
return 1, nil
|
|
}
|
|
|
|
func collectBmcInfo(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
|
|
output, err := bmcInfoOutput(target)
|
|
if err != nil {
|
|
log.Debugf("Failed to collect bmc-info data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
firmwareRevision, err := getBMCInfoFirmwareRevision(output)
|
|
if err != nil {
|
|
log.Errorf("Failed to parse bmc-info data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
manufacturerID, err := getBMCInfoManufacturerID(output)
|
|
if err != nil {
|
|
log.Errorf("Failed to parse bmc-info data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
systemFirmwareVersion, err := getBMCInfoSystemFirmwareVersion(output)
|
|
if err != nil {
|
|
// This one is not always available.
|
|
log.Debugf("Failed to parse bmc-info data from %s: %s", targetName(target.host), err)
|
|
systemFirmwareVersion = "N/A"
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
bmcInfo,
|
|
prometheus.GaugeValue,
|
|
1,
|
|
firmwareRevision, manufacturerID, systemFirmwareVersion,
|
|
)
|
|
return 1, nil
|
|
}
|
|
|
|
func collectSELInfo(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
|
|
output, err := ipmiSELOutput(target)
|
|
if err != nil {
|
|
log.Debugf("Failed to collect ipmi-sel data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
entriesCount, err := getSELInfoEntriesCount(output)
|
|
if err != nil {
|
|
log.Errorf("Failed to parse ipmi-sel data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
freeSpace, err := getSELInfoFreeSpace(output)
|
|
if err != nil {
|
|
log.Errorf("Failed to parse ipmi-sel data from %s: %s", targetName(target.host), err)
|
|
return 0, err
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
selEntriesCountDesc,
|
|
prometheus.GaugeValue,
|
|
entriesCount,
|
|
)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
selFreeSpaceDesc,
|
|
prometheus.GaugeValue,
|
|
freeSpace,
|
|
)
|
|
return 1, nil
|
|
}
|
|
|
|
func markCollectorUp(ch chan<- prometheus.Metric, name string, up int) {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
upDesc,
|
|
prometheus.GaugeValue,
|
|
float64(up),
|
|
name,
|
|
)
|
|
}
|
|
|
|
// Collect implements Prometheus.Collector.
|
|
func (c collector) Collect(ch chan<- prometheus.Metric) {
|
|
start := time.Now()
|
|
defer func() {
|
|
duration := time.Since(start).Seconds()
|
|
log.Debugf("Scrape of target %s took %f seconds.", targetName(c.target), duration)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
durationDesc,
|
|
prometheus.GaugeValue,
|
|
duration,
|
|
)
|
|
}()
|
|
|
|
config := c.config.ConfigForTarget(c.target, c.module)
|
|
target := ipmiTarget{
|
|
host: c.target,
|
|
config: config,
|
|
}
|
|
|
|
for _, collector := range config.Collectors {
|
|
var up int
|
|
log.Debugf("Running collector: %s", collector)
|
|
switch collector {
|
|
case "ipmi":
|
|
up, _ = collectMonitoring(ch, target)
|
|
case "sm-lan-mode":
|
|
up, _ = collectSmLanMode(ch, target)
|
|
case "dcmi":
|
|
up, _ = collectDCMI(ch, target)
|
|
case "bmc":
|
|
up, _ = collectBmcInfo(ch, target)
|
|
case "chassis":
|
|
up, _ = collectChassisState(ch, target)
|
|
case "sel":
|
|
up, _ = collectSELInfo(ch, target)
|
|
}
|
|
markCollectorUp(ch, collector, up)
|
|
}
|
|
}
|
|
|
|
func contains(s []int64, elm int64) bool {
|
|
for _, a := range s {
|
|
if a == elm {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func escapePassword(password string) string {
|
|
return strings.Replace(password, "#", "\\#", -1)
|
|
}
|
|
|
|
func targetName(target string) string {
|
|
if targetIsLocal(target) {
|
|
return "[local]"
|
|
}
|
|
return target
|
|
}
|
|
|
|
func targetIsLocal(target string) bool {
|
|
return target == targetLocal
|
|
}
|