#!/bin/bash # a space separated list of UPS names # if empty, the list returned by 'upsc -l' will be used nut_ups= # how frequently to collect UPS data nut_update_every=2 nut_timeout=2 # the priority of nut related to other charts nut_priority=90000 declare -A nut_ids=() nut_get_all() { timeout $nut_timeout upsc -l } nut_get() { timeout $nut_timeout upsc "$1" } nut_check() { # this should return: # - 0 to enable the chart # - 1 to disable the chart local x require_cmd upsc || return 1 [ -z "$nut_ups" ] && nut_ups="$( nut_get_all )" for x in $nut_ups do nut_get "$x" >/dev/null if [ $? -eq 0 ] then nut_ids[$x]="$( fixid "$x" )" continue fi echo >&2 "nut: ERROR: Cannot get information for NUT UPS '$x'." done if [ ${#nut_ids[@]} -eq 0 ] then echo >&2 "nut: Please set nut_ups='ups_name' in $confd/nut.conf" return 1 fi return 0 } nut_create() { # create the charts local x for x in "${nut_ids[@]}" do cat <<EOF CHART nut_$x.charge '' "UPS Charge" "percentage" ups nut.charge area $((nut_priority + 1)) $nut_update_every DIMENSION battery_charge charge absolute 1 100 CHART nut_$x.battery_voltage '' "UPS Battery Voltage" "Volts" ups nut.battery.voltage line $((nut_priority + 2)) $nut_update_every DIMENSION battery_voltage voltage absolute 1 100 DIMENSION battery_voltage_high high absolute 1 100 DIMENSION battery_voltage_low low absolute 1 100 DIMENSION battery_voltage_nominal nominal absolute 1 100 CHART nut_$x.input_voltage '' "UPS Input Voltage" "Volts" input nut.input.voltage line $((nut_priority + 3)) $nut_update_every DIMENSION input_voltage voltage absolute 1 100 DIMENSION input_voltage_fault fault absolute 1 100 DIMENSION input_voltage_nominal nominal absolute 1 100 CHART nut_$x.input_current '' "UPS Input Current" "Ampere" input nut.input.current line $((nut_priority + 4)) $nut_update_every DIMENSION input_current_nominal nominal absolute 1 100 CHART nut_$x.input_frequency '' "UPS Input Frequency" "Hz" input nut.input.frequency line $((nut_priority + 5)) $nut_update_every DIMENSION input_frequency frequency absolute 1 100 DIMENSION input_frequency_nominal nominal absolute 1 100 CHART nut_$x.output_voltage '' "UPS Output Voltage" "Volts" output nut.output.voltage line $((nut_priority + 6)) $nut_update_every DIMENSION output_voltage voltage absolute 1 100 CHART nut_$x.load '' "UPS Load" "percentage" ups nut.load area $((nut_priority)) $nut_update_every DIMENSION load load absolute 1 100 CHART nut_$x.temp '' "UPS Temperature" "temperature" ups nut.temperature line $((nut_priority + 7)) $nut_update_every DIMENSION temp temp absolute 1 100 EOF done return 0 } nut_update() { # the first argument to this function is the microseconds since last update # pass this parameter to the BEGIN statement (see bellow). # do all the work to collect / calculate the values # for each dimension # remember: KEEP IT SIMPLE AND SHORT local i x for i in "${!nut_ids[@]}" do x="${nut_ids[$i]}" nut_get "$i" | awk " BEGIN { battery_charge = 0; battery_voltage = 0; battery_voltage_high = 0; battery_voltage_low = 0; battery_voltage_nominal = 0; input_voltage = 0; input_voltage_fault = 0; input_voltage_nominal = 0; input_current_nominal = 0; input_frequency = 0; input_frequency_nominal = 0; output_voltage = 0; load = 0; temp = 0; } /^battery.charge: .*/ { battery_charge = \$2 * 100 }; /^battery.voltage: .*/ { battery_voltage = \$2 * 100 }; /^battery.voltage.high: .*/ { battery_voltage_high = \$2 * 100 }; /^battery.voltage.low: .*/ { battery_voltage_low = \$2 * 100 }; /^battery.voltage.nominal: .*/ { battery_voltage_nominal = \$2 * 100 }; /^input.voltage: .*/ { input_voltage = \$2 * 100 }; /^input.voltage.fault: .*/ { input_voltage_fault = \$2 * 100 }; /^input.voltage.nominal: .*/ { input_voltage_nominal = \$2 * 100 }; /^input.current.nominal: .*/ { input_current_nominal = \$2 * 100 }; /^input.frequency: .*/ { input_frequency = \$2 * 100 }; /^input.frequency.nominal: .*/ { input_frequency_nominal = \$2 * 100 }; /^output.voltage: .*/ { output_voltage = \$2 * 100 }; /^ups.load: .*/ { load = \$2 * 100 }; /^ups.temperature: .*/ { temp = \$2 * 100 }; END { print \"BEGIN nut_$x.charge $1\"; print \"SET battery_charge = \" battery_charge; print \"END\" print \"BEGIN nut_$x.battery_voltage $1\"; print \"SET battery_voltage = \" battery_voltage; print \"SET battery_voltage_high = \" battery_voltage_high; print \"SET battery_voltage_low = \" battery_voltage_low; print \"SET battery_voltage_nominal = \" battery_voltage_nominal; print \"END\" print \"BEGIN nut_$x.input_voltage $1\"; print \"SET input_voltage = \" input_voltage; print \"SET input_voltage_fault = \" input_voltage_fault; print \"SET input_voltage_nominal = \" input_voltage_nominal; print \"END\" print \"BEGIN nut_$x.input_current $1\"; print \"SET input_current_nominal = \" input_current_nominal; print \"END\" print \"BEGIN nut_$x.input_frequency $1\"; print \"SET input_frequency = \" input_frequency; print \"SET input_frequency_nominal = \" input_frequency_nominal; print \"END\" print \"BEGIN nut_$x.output_voltage $1\"; print \"SET output_voltage = \" output_voltage; print \"END\" print \"BEGIN nut_$x.load $1\"; print \"SET load = \" load; print \"END\" print \"BEGIN nut_$x.temp $1\"; print \"SET temp = \" temp; print \"END\" }" [ $? -ne 0 ] && unset nut_ids[$i] && echo >&2 "nut: failed to get values for '$i', disabling it." done [ ${#nut_ids[@]} -eq 0 ] && echo >&2 "nut: no UPSes left active." && return 1 return 0 }