Check chassis power state

Use ipmi-chassis to check power on /off
report via ipmi_chassis_power_state
enable via "chassis" module

README.md

@@ -249,6 +249,13 @@ returned from the BMC. Example:
 
     ipmi_bmc_info{firmware_revision="2.52",manufacturer_id="Dell Inc. (674)"} 1
 
+### Chassis Power State
+This metric is only provided if the `chassis` collector is enabled.
+
+The metric `ipmi_chassis_power_state` shows the current chassis power state of the machine.
+The value is 1 for poweron, and 0 otherwise.
+
+
 ### Power consumption
 
 This metric is only provided if the `dcmi` collector is enabled.

collector.go

@@ -28,6 +28,7 @@ const (
 
 var (
 	ipmiDCMICurrentPowerRegex    = regexp.MustCompile(`^Current Power\s*:\s*(?P<value>[0-9.]*)\s*Watts.*`)
+	ipmiChassisPowerRegex        = regexp.MustCompile(`^System Power\s*:\s(?P<value>.*)`)
 	bmcInfoFirmwareRevisionRegex = regexp.MustCompile(`^Firmware Revision\s*:\s*(?P<value>[0-9.]*).*`)
 	bmcInfoManufacturerIDRegex   = regexp.MustCompile(`^Manufacturer ID\s*:\s*(?P<value>.*)`)
 )
@@ -145,6 +146,13 @@ var (
 		nil,
 	)
 
+	chassisPowerState = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, "chassis", "power_state"),
+		"Current power state (1=on, 0=off).",
+		[]string{},
+		nil,
+	)
+
 	bmcInfo = prometheus.NewDesc(
 		prometheus.BuildFQName(namespace, "bmc", "info"),
 		"Constant metric with value '1' providing details about the BMC.",
@@ -248,6 +256,10 @@ func bmcInfoOutput(target ipmiTarget) ([]byte, error) {
 	return freeipmiOutput("bmc-info", target, "--get-device-id")
 }
 
+func ipmiChassisOutput(target ipmiTarget) ([]byte, error) {
+	return freeipmiOutput("ipmi-chassis", target, "--get-chassis-status")
+}
+
 func splitMonitoringOutput(impiOutput []byte, excludeSensorIds []int64) ([]sensorData, error) {
 	var result []sensorData
 
@@ -314,6 +326,17 @@ func getCurrentPowerConsumption(ipmiOutput []byte) (float64, error) {
 	return strconv.ParseFloat(value, 64)
 }
 
+func getChassisPowerState(ipmiOutput []byte) (float64, error) {
+	value, err := getValue(ipmiOutput, ipmiChassisPowerRegex)
+	if err != nil {
+		return -1, err
+	}
+	if value == "on" {
+		return 1, err
+	}
+	return 0, err
+}
+
 func getBMCInfoFirmwareRevision(ipmiOutput []byte) (string, error) {
 	return getValue(ipmiOutput, bmcInfoFirmwareRevisionRegex)
 }
@@ -438,6 +461,25 @@ func collectDCMI(ch chan<- prometheus.Metric, target ipmiTarget) (int, error) {
 	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 {
@@ -501,6 +543,8 @@ func (c collector) Collect(ch chan<- prometheus.Metric) {
 			up, _ = collectDCMI(ch, target)
 		case "bmc":
 			up, _ = collectBmcInfo(ch, target)
+		case "chassis":
+			up, _ = collectChassisState(ch, target)
 		}
 		markCollectorUp(ch, collector, up)
 	}

config.go

@@ -39,7 +39,7 @@ type IPMIConfig struct {
 	XXX map[string]interface{} `yaml:",inline"`
 }
 
-var emptyConfig = IPMIConfig{Collectors: []string{"ipmi", "dcmi", "bmc"}}
+var emptyConfig = IPMIConfig{Collectors: []string{"ipmi", "dcmi", "bmc", "chassis"}}
 
 // CollectorName is used for unmarshaling the list of collectors in the yaml config file
 type CollectorName string
@@ -78,7 +78,7 @@ func (s *IPMIConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
 		return err
 	}
 	for _, c := range s.Collectors {
-		if !(c == "ipmi" || c == "dcmi" || c == "bmc") {
+		if !(c == "ipmi" || c == "dcmi" || c == "bmc" || c == "chassis") {
 			return fmt.Errorf("unknown collector name: %s", c)
 		}
 	}

ipmi_local.yml

@@ -4,11 +4,12 @@
 # In most cases, this should work without using a config file at all.
 modules:
         default:
-                # Available collectors are bmc, ipmi, and dcmi
+                # Available collectors are bmc, ipmi, chassis, and dcmi
                 collectors:
                 - bmc
                 - ipmi
                 - dcmi
+                - chassis
                 # Got any sensors you don't care about? Add them here.
                 exclude_sensor_ids:
                 - 2

ipmi_remote.yml

@@ -21,11 +21,12 @@ modules:
                 # to (session-timeout * #-of-collectors) milliseconds, so set the scrape
                 # timeout in Prometheus accordingly.
                 timeout: 10000
-                # Available collectors are bmc, ipmi, and dcmi
+                # Available collectors are bmc, ipmi, chassis, and dcmi
                 # If not specified, all three are used
                 collectors:
                 - bmc
                 - ipmi
+                - chassis
                 # Got any sensors you don't care about? Add them here.
                 exclude_sensor_ids:
                 - 2