diff --git a/collector/fixtures/e2e-64k-page-output.txt b/collector/fixtures/e2e-64k-page-output.txt
index c7fe830f..729deff9 100644
--- a/collector/fixtures/e2e-64k-page-output.txt
+++ b/collector/fixtures/e2e-64k-page-output.txt
@@ -2393,6 +2393,40 @@ node_nfsd_server_rpcs_total 18628
# HELP node_nfsd_server_threads Total number of NFSd kernel threads that are running.
# TYPE node_nfsd_server_threads gauge
node_nfsd_server_threads 8
+# HELP node_power_supply_capacity capacity value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_capacity gauge
+node_power_supply_capacity{power_supply="BAT0"} 81
+# HELP node_power_supply_cyclecount cyclecount value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_cyclecount gauge
+node_power_supply_cyclecount{power_supply="BAT0"} 0
+# HELP node_power_supply_energy_full energy_full value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_energy_full gauge
+node_power_supply_energy_full{power_supply="BAT0"} 4.507e+07
+# HELP node_power_supply_energy_full_design energy_full_design value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_energy_full_design gauge
+node_power_supply_energy_full_design{power_supply="BAT0"} 4.752e+07
+# HELP node_power_supply_energy_now energy_now value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_energy_now gauge
+node_power_supply_energy_now{power_supply="BAT0"} 3.658e+07
+# HELP node_power_supply_info info of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_info gauge
+node_power_supply_info{power_supply="AC",type="Mains"} 1
+node_power_supply_info{capacity_level="Normal",manufacturer="LGC",model_name="LNV-45N1",power_supply="BAT0",serial_number="38109",status="Discharging",technology="Li-ion",type="Battery"} 1
+# HELP node_power_supply_online online value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_online gauge
+node_power_supply_online{power_supply="AC"} 0
+# HELP node_power_supply_power_now power_now value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_power_now gauge
+node_power_supply_power_now{power_supply="BAT0"} 5.002e+06
+# HELP node_power_supply_present present value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_present gauge
+node_power_supply_present{power_supply="BAT0"} 1
+# HELP node_power_supply_voltage_min_design voltage_min_design value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_voltage_min_design gauge
+node_power_supply_voltage_min_design{power_supply="BAT0"} 1.08e+07
+# HELP node_power_supply_voltage_now voltage_now value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_voltage_now gauge
+node_power_supply_voltage_now{power_supply="BAT0"} 1.166e+07
# HELP node_pressure_cpu_waiting_seconds_total Total time in seconds that processes have waited for CPU time
# TYPE node_pressure_cpu_waiting_seconds_total counter
node_pressure_cpu_waiting_seconds_total 14.036781000000001
@@ -2492,6 +2526,7 @@ node_scrape_collector_success{collector="netdev"} 1
node_scrape_collector_success{collector="netstat"} 1
node_scrape_collector_success{collector="nfs"} 1
node_scrape_collector_success{collector="nfsd"} 1
+node_scrape_collector_success{collector="powersupplyclass"} 1
node_scrape_collector_success{collector="pressure"} 1
node_scrape_collector_success{collector="processes"} 1
node_scrape_collector_success{collector="qdisc"} 1
diff --git a/collector/fixtures/e2e-output.txt b/collector/fixtures/e2e-output.txt
index a10db8a4..41129c4a 100644
--- a/collector/fixtures/e2e-output.txt
+++ b/collector/fixtures/e2e-output.txt
@@ -2393,6 +2393,40 @@ node_nfsd_server_rpcs_total 18628
# HELP node_nfsd_server_threads Total number of NFSd kernel threads that are running.
# TYPE node_nfsd_server_threads gauge
node_nfsd_server_threads 8
+# HELP node_power_supply_capacity capacity value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_capacity gauge
+node_power_supply_capacity{power_supply="BAT0"} 81
+# HELP node_power_supply_cyclecount cyclecount value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_cyclecount gauge
+node_power_supply_cyclecount{power_supply="BAT0"} 0
+# HELP node_power_supply_energy_full energy_full value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_energy_full gauge
+node_power_supply_energy_full{power_supply="BAT0"} 45.07
+# HELP node_power_supply_energy_full_design energy_full_design value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_energy_full_design gauge
+node_power_supply_energy_full_design{power_supply="BAT0"} 47.52
+# HELP node_power_supply_energy_watthour energy_watthour value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_energy_watthour gauge
+node_power_supply_energy_watthour{power_supply="BAT0"} 36.58
+# HELP node_power_supply_info info of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_info gauge
+node_power_supply_info{power_supply="AC",type="Mains"} 1
+node_power_supply_info{capacity_level="Normal",manufacturer="LGC",model_name="LNV-45N1",power_supply="BAT0",serial_number="38109",status="Discharging",technology="Li-ion",type="Battery"} 1
+# HELP node_power_supply_online online value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_online gauge
+node_power_supply_online{power_supply="AC"} 0
+# HELP node_power_supply_power_watt power_watt value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_power_watt gauge
+node_power_supply_power_watt{power_supply="BAT0"} 5.002
+# HELP node_power_supply_present present value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_present gauge
+node_power_supply_present{power_supply="BAT0"} 1
+# HELP node_power_supply_voltage_min_design voltage_min_design value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_voltage_min_design gauge
+node_power_supply_voltage_min_design{power_supply="BAT0"} 10.8
+# HELP node_power_supply_voltage_volt voltage_volt value of /sys/class/power_supply/<power_supply>.
+# TYPE node_power_supply_voltage_volt gauge
+node_power_supply_voltage_volt{power_supply="BAT0"} 11.66
# HELP node_pressure_cpu_waiting_seconds_total Total time in seconds that processes have waited for CPU time
# TYPE node_pressure_cpu_waiting_seconds_total counter
node_pressure_cpu_waiting_seconds_total 14.036781000000001
@@ -2492,6 +2526,7 @@ node_scrape_collector_success{collector="netdev"} 1
node_scrape_collector_success{collector="netstat"} 1
node_scrape_collector_success{collector="nfs"} 1
node_scrape_collector_success{collector="nfsd"} 1
+node_scrape_collector_success{collector="powersupplyclass"} 1
node_scrape_collector_success{collector="pressure"} 1
node_scrape_collector_success{collector="processes"} 1
node_scrape_collector_success{collector="qdisc"} 1
diff --git a/collector/fixtures/sys.ttar b/collector/fixtures/sys.ttar
index 8502ec6b..27aa0a79 100644
--- a/collector/fixtures/sys.ttar
+++ b/collector/fixtures/sys.ttar
@@ -995,6 +995,289 @@ Lines: 1
1
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: sys/class/power_supply
+Mode: 755
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: sys/class/power_supply/AC
+Mode: 755
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/online
+Lines: 1
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: sys/class/power_supply/AC/power
+Mode: 755
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/async
+Lines: 1
+disabled
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/autosuspend_delay_ms
+Lines: 0
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/control
+Lines: 1
+auto
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/runtime_active_kids
+Lines: 1
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/runtime_active_time
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/runtime_enabled
+Lines: 1
+disabled
+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/runtime_status
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/runtime_suspended_time
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/wakeup_abort_count
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+Lines: 1
+7888
+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/AC/power/wakeup_total_time_ms
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+Path: sys/class/power_supply/AC/type
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+Mode: 444
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+Path: sys/class/power_supply/AC/uevent
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+POWER_SUPPLY_NAME=AC
+POWER_SUPPLY_ONLINE=0
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: sys/class/power_supply/BAT0
+Mode: 755
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+Mode: 644
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+Mode: 444
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+Lines: 1
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/charge_start_threshold
+Lines: 1
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+Mode: 644
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+Path: sys/class/power_supply/BAT0/charge_stop_threshold
+Lines: 1
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+Mode: 644
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+Mode: 444
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+47520000
+Mode: 444
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+Path: sys/class/power_supply/BAT0/energy_now
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+36580000
+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/manufacturer
+Lines: 1
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/model_name
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+Mode: 444
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+Path: sys/class/power_supply/BAT0/power/runtime_status
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+Path: sys/class/power_supply/BAT0/power/runtime_suspended_time
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+5002000
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+Path: sys/class/power_supply/BAT0/present
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+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/serial_number
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/status
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+Mode: 444
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+Path: sys/class/power_supply/BAT0/technology
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+Mode: 444
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+Path: sys/class/power_supply/BAT0/type
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+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/uevent
+Lines: 16
+POWER_SUPPLY_NAME=BAT0
+POWER_SUPPLY_STATUS=Discharging
+POWER_SUPPLY_PRESENT=1
+POWER_SUPPLY_TECHNOLOGY=Li-ion
+POWER_SUPPLY_CYCLE_COUNT=0
+POWER_SUPPLY_VOLTAGE_MIN_DESIGN=10800000
+POWER_SUPPLY_VOLTAGE_NOW=11660000
+POWER_SUPPLY_POWER_NOW=5002000
+POWER_SUPPLY_ENERGY_FULL_DESIGN=47520000
+POWER_SUPPLY_ENERGY_FULL=45070000
+POWER_SUPPLY_ENERGY_NOW=36580000
+POWER_SUPPLY_CAPACITY=81
+POWER_SUPPLY_CAPACITY_LEVEL=Normal
+POWER_SUPPLY_MODEL_NAME=LNV-45N1
+POWER_SUPPLY_MANUFACTURER=LGC
+POWER_SUPPLY_SERIAL_NUMBER=38109
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/voltage_min_design
+Lines: 1
+10800000
+Mode: 444
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/class/power_supply/BAT0/voltage_now
+Lines: 1
+11660000
+Mode: 444
Directory: sys/class/thermal
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
diff --git a/collector/powersupplyclass.go b/collector/powersupplyclass.go
new file mode 100644
index 00000000..3b5c8d7f
--- /dev/null
+++ b/collector/powersupplyclass.go
@@ -0,0 +1,194 @@
+// Copyright 2019 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !nopowersupplyclass
+// +build linux
+
+package collector
+
+import (
+ "fmt"
+ "regexp"
+
+ "github.com/prometheus/client_golang/prometheus"
+ "github.com/prometheus/procfs/sysfs"
+ "gopkg.in/alecthomas/kingpin.v2"
+)
+
+var (
+ powerSupplyClassIgnoredPowerSupplies = kingpin.Flag("collector.powersupply.ignored-supplies", "Regexp of power supplies to ignore for powersupplyclass collector.").Default("^$").String()
+)
+
+type powerSupplyClassCollector struct {
+ subsystem string
+ ignoredPattern *regexp.Regexp
+ metricDescs map[string]*prometheus.Desc
+}
+
+func init() {
+ registerCollector("powersupplyclass", defaultEnabled, NewPowerSupplyClassCollector)
+}
+
+func NewPowerSupplyClassCollector() (Collector, error) {
+ pattern := regexp.MustCompile(*powerSupplyClassIgnoredPowerSupplies)
+ return &powerSupplyClassCollector{
+ subsystem: "power_supply",
+ ignoredPattern: pattern,
+ metricDescs: map[string]*prometheus.Desc{},
+ }, nil
+}
+
+func (c *powerSupplyClassCollector) Update(ch chan<- prometheus.Metric) error {
+ powerSupplyClass, err := getPowerSupplyClassInfo(c.ignoredPattern)
+ if err != nil {
+ return fmt.Errorf("could not get power_supply class info: %s", err)
+ }
+ for _, powerSupply := range powerSupplyClass {
+
+ for name, value := range map[string]*int64{
+ "authentic": powerSupply.Authentic,
+ "calibrate": powerSupply.Calibrate,
+ "capacity": powerSupply.Capacity,
+ "capacity_alert_max": powerSupply.CapacityAlertMax,
+ "capacity_alert_min": powerSupply.CapacityAlertMin,
+ "cyclecount": powerSupply.CycleCount,
+ "online": powerSupply.Online,
+ "present": powerSupply.Present,
+ "time_to_empty_seconds": powerSupply.TimeToEmptyNow,
+ "time_to_full_seconds": powerSupply.TimeToFullNow,
+ } {
+ if value != nil {
+ pushPowerSupplyMetric(ch, c.subsystem, name, float64(*value), powerSupply.Name, prometheus.GaugeValue)
+ }
+ }
+
+ for name, value := range map[string]*int64{
+ "current_boot": powerSupply.CurrentBoot,
+ "current_max": powerSupply.CurrentMax,
+ "current_ampere": powerSupply.CurrentNow,
+ "energy_empty": powerSupply.EnergyEmpty,
+ "energy_empty_design": powerSupply.EnergyEmptyDesign,
+ "energy_full": powerSupply.EnergyFull,
+ "energy_full_design": powerSupply.EnergyFullDesign,
+ "energy_watthour": powerSupply.EnergyNow,
+ "voltage_boot": powerSupply.VoltageBoot,
+ "voltage_max": powerSupply.VoltageMax,
+ "voltage_max_design": powerSupply.VoltageMaxDesign,
+ "voltage_min": powerSupply.VoltageMin,
+ "voltage_min_design": powerSupply.VoltageMinDesign,
+ "voltage_volt": powerSupply.VoltageNow,
+ "voltage_ocv": powerSupply.VoltageOCV,
+ "charge_control_limit": powerSupply.ChargeControlLimit,
+ "charge_control_limit_max": powerSupply.ChargeControlLimitMax,
+ "charge_counter": powerSupply.ChargeCounter,
+ "charge_empty": powerSupply.ChargeEmpty,
+ "charge_empty_design": powerSupply.ChargeEmptyDesign,
+ "charge_full": powerSupply.ChargeFull,
+ "charge_full_design": powerSupply.ChargeFullDesign,
+ "charge_ampere": powerSupply.ChargeNow,
+ "charge_term_current": powerSupply.ChargeTermCurrent,
+ "constant_charge_current": powerSupply.ConstantChargeCurrent,
+ "constant_charge_current_max": powerSupply.ConstantChargeCurrentMax,
+ "constant_charge_voltage": powerSupply.ConstantChargeVoltage,
+ "constant_charge_voltage_max": powerSupply.ConstantChargeVoltageMax,
+ "precharge_current": powerSupply.PrechargeCurrent,
+ "input_current_limit": powerSupply.InputCurrentLimit,
+ "power_watt": powerSupply.PowerNow,
+ } {
+ if value != nil {
+ pushPowerSupplyMetric(ch, c.subsystem, name, float64(*value)/1e6, powerSupply.Name, prometheus.GaugeValue)
+ }
+ }
+
+ for name, value := range map[string]*int64{
+ "temp_celsius": powerSupply.Temp,
+ "temp_alert_max_celsius": powerSupply.TempAlertMax,
+ "temp_alert_min_celsius": powerSupply.TempAlertMin,
+ "temp_ambient_celsius": powerSupply.TempAmbient,
+ "temp_ambient_max_celsius": powerSupply.TempAmbientMax,
+ "temp_ambient_min_celsius": powerSupply.TempAmbientMin,
+ "temp_max_celsius": powerSupply.TempMax,
+ "temp_min_celsius": powerSupply.TempMin,
+ } {
+ if value != nil {
+ pushPowerSupplyMetric(ch, c.subsystem, name, float64(*value)/10.0, powerSupply.Name, prometheus.GaugeValue)
+ }
+ }
+
+ var (
+ keys []string
+ values []string
+ )
+ for name, value := range map[string]string{
+ "power_supply": powerSupply.Name,
+ "capacity_level": powerSupply.CapacityLevel,
+ "charge_type": powerSupply.ChargeType,
+ "health": powerSupply.Health,
+ "manufacturer": powerSupply.Manufacturer,
+ "model_name": powerSupply.ModelName,
+ "serial_number": powerSupply.SerialNumber,
+ "status": powerSupply.Status,
+ "technology": powerSupply.Technology,
+ "type": powerSupply.Type,
+ "usb_type": powerSupply.UsbType,
+ "scope": powerSupply.Scope,
+ } {
+ if value != "" {
+ keys = append(keys, name)
+ values = append(values, value)
+ }
+ }
+
+ fieldDesc := prometheus.NewDesc(
+ prometheus.BuildFQName(namespace, c.subsystem, "info"),
+ "info of /sys/class/power_supply/<power_supply>.",
+ keys,
+ nil,
+ )
+ ch <- prometheus.MustNewConstMetric(fieldDesc, prometheus.GaugeValue, 1.0, values...)
+
+ }
+
+ return nil
+}
+
+func pushPowerSupplyMetric(ch chan<- prometheus.Metric, subsystem string, name string, value float64, powerSupplyName string, valueType prometheus.ValueType) {
+ fieldDesc := prometheus.NewDesc(
+ prometheus.BuildFQName(namespace, subsystem, name),
+ fmt.Sprintf("%s value of /sys/class/power_supply/<power_supply>.", name),
+ []string{"power_supply"},
+ nil,
+ )
+
+ ch <- prometheus.MustNewConstMetric(fieldDesc, valueType, value, powerSupplyName)
+}
+
+func getPowerSupplyClassInfo(ignore *regexp.Regexp) (sysfs.PowerSupplyClass, error) {
+ fs, err := sysfs.NewFS(*sysPath)
+ if err != nil {
+ return nil, err
+ }
+ powerSupplyClass, err := fs.PowerSupplyClass()
+
+ if err != nil {
+ return powerSupplyClass, fmt.Errorf("error obtaining power_supply class info: %s", err)
+ }
+
+ for device := range powerSupplyClass {
+ if ignore.MatchString(device) {
+ delete(powerSupplyClass, device)
+ }
+ }
+
+ return powerSupplyClass, nil
+}